Accept an empty signature when loading a variations seed. This is for
testing purposes.

Can't find the switch you are looking for? Try looking in:
ash/constants/ash_switches.cc
base/base_switches.cc
etc.
When commenting your switch, please use the same voice as surrounding
comments. Imagine "This switch..." at the beginning of the phrase, and it'll
all work out.

Specifies Accept-Language to send to servers and expose to JavaScript via the
navigator.language DOM property. language[-country] where language is the 2
letter code from ISO-639.

Flag indicating that a resource provider must be set up to provide cast
receiver with resources. Apps cannot start until provided resources.
This flag implies --alsa-check-close-timeout=0.

Manually sets additional Private State Tokens key commitments in the network
service to the given value, which should be a JSON dictionary satisfying the
requirements of TrustTokenKeyCommitmentParser::ParseMultipleIssuers.
These keys are available in addition to keys provided by the most recent call
to TrustTokenKeyCommitments::Set.
For issuers with keys provided through both the command line and
TrustTokenKeyCommitments::Set, the keys provided through the command line
take precedence. This is because someone testing manually might want to pass
additional keys via the command line to a real Chrome release with the
component updater enabled, and it would be surprising if the manually-passed
keys were overwritten some time after startup when the component updater
runs.

Allows plugins to be loaded in the command line for testing.

Allows third-party content included on a page to prompt for a HTTP basic
auth username/password pair.

TODO(b/299642185): Remove this flag by the end of 2023.
ChromeOS does not support empty passwords for users, but some legacy test
setups might use empty password for users.

If this flag is passed, failed policy fetches will not cause profile
initialization to fail. This is useful for tests because it means that
tests don't have to mock out the policy infrastructure.

By default, file:// URIs cannot read other file:// URIs. This is an
override for developers who need the old behavior for testing.

Allow non-secure origins to use the screen capture API and the desktopCapture
extension API.

Enables TLS/SSL errors on localhost to be ignored (no interstitial,
no blocking of requests).

Allows loopback interface to be added in network list for peer connection.

When this flag is set, the OS installation UI can be accessed. This
allows the user to install from USB to disk.

Allows processing of input before a frame has been committed.
TODO(crbug.com/987626): Used by headless. Look for a way not
involving a command line switch.

By default, an https page cannot run JavaScript, CSS or plugins from http
URLs. This provides an override to get the old insecure behavior.

Allows debugging of sandboxed processes (see zygote_main_linux.cc).

Allows Web Push notifications that do not show a notification.

Override for the URL used for the ChromeOS Almanac API. Used for local
testing with a non-production server (e.g.
"--almanac-api-url=http://localhost:8000").

Name of the device the amp mixer should be opened on. If this flag is not
specified it will default to the same device as kAlsaVolumeDeviceName.

Name of the simple mixer control element that the ALSA-based media library
should use to toggle powersave mode on the system.

Time in ms to wait before closing the PCM handle when no more mixer inputs
remain. Assumed to be 0 if --accept-resource-provider is present.

Flag that enables resampling audio with sample rate below 32kHz up to 48kHz.
Should be set to true for internal audio products.

Optional flag to set a fixed sample rate for the alsa device.
Deprecated: Use --audio-output-sample-rate instead.

Name of the device the mute mixer should be opened on. If this flag is not
specified it will default to the same device as kAlsaVolumeDeviceName.

Name of the simple mixer control element that the ALSA-based media library
should use to mute the system.

Minimum number of available frames for scheduling a transfer.

Size of the ALSA output buffer in frames. This directly sets the latency of
the output device. Latency can be calculated by multiplying the sample rate
by the output buffer size.

Size of the ALSA output period in frames. The period of an ALSA output device
determines how many frames elapse between hardware interrupts.

How many frames need to be in the output buffer before output starts.

Name of the device the volume control mixer should be opened on. Will use the
same device as kAlsaOutputDevice and fall back to "default" if
kAlsaOutputDevice is not supplied.

Name of the simple mixer control element that the ALSA-based media library
should use to control the volume.

Also emit full event trace logs for successful tests.

Causes HDCP of the specified type to always be enabled when an external
display is connected. Used for HDCP compliance testing on ChromeOS.

Scale factor to apply to every animation duration. Must be >= 0.0. This will
only apply to LinearAnimation and its subclasses.

Specifies that the associated value should be launched in "application"
mode.

Specifies whether an app launched in kiosk mode was auto launched with zero
delay. Used in order to properly restore auto-launched state during session
restore flow.

Specifies that the extension-app with the specified id should be launched
according to its configuration.

Overrides the launch url of an app with the specified url. This is used
along with kAppId to launch a given app with the url corresponding to an item
in the app's shortcuts menu.

Value of GAIA auth code for --force-app-mode.

Value of OAuth2 refresh token for --force-app-mode.

Path for app's OEM manifest file.

This is used along with kAppId to indicate an app was launched during
OS login, and which mode the app was launched in.

A process type (switches::kProcessType) that is used by App Shim processes.
See chrome/app_shim/app_shim_main_delegate.mm.

Overrides the update url used by webstore extensions.

Signals ARC support status on this device. This can take one of the
following three values.
- none: ARC is not installed on this device. (default)
- installed: ARC is installed on this device, but not officially supported.
Users can enable ARC only when Finch experiment is turned on.
- officially-supported: ARC is installed and supported on this device. So
users can enable ARC via settings etc.

DEPRECATED: Please use --arc-availability=installed.
Signals the availability of the ARC instance on this device.

Switch that blocks KeyMint. When KeyMint is blocked, Keymaster is enabled.

Flag that forces ARC data be cleaned on each start.

Flag that disables ARC app sync flow that installs some apps silently. Used
in autotests to resolve racy conditions.

Used in tests to disable DexOpt cache which is on by default.

Flag that disables ARC download provider that prevents extra content to be
downloaded and installed in context of Play Store and GMS Core.

Used in autotest to disable GMS-core caches which is on by default.

Flag that disables ARC locale sync with Android Container. Used in autotest
to prevent conditions when certain apps, including Play Store may get
restarted. Restarting Play Store may cause random test failures. Enabling
this flag would also forces ARC Container to use 'en-US' as a locale and
'en-US,en' as preferred languages.

Used to disable GMS scheduling of media store periodic indexing and corpora
maintenance tasks. Used in performance tests to prevent running during
testing which can cause unstable results or CPU not idle pre-test failures.

Flag that disables ARC Play Auto Install flow that installs set of predefined
apps silently. Used in autotests to resolve racy conditions.

Used in autotest to disable TTS cache which is on by default.

Flag that enables key and ID attestation for KeyMint.

Flag that indicates ARC images are formatted with EROFS (go/arcvm-erofs).

Flag that forces Android volumes (DocumentsProviders and Play files) to be
mounted in the Files app. Used for testing.

Flag that forces the OptIn ui to be shown. Used in tests.

Flag that enables developer options needed to generate an ARC Play Auto
Install roster. Used manually by developers.

Sets the mode of operation for ureadahead during ARC Container boot.
readahead (default) - used during production and is equivalent to no switch
being set.
generate - used during Android Uprev data collector to pre-generate pack file
and upload to Google Cloud as build artifact for CrOS build image.
disabled - used for test purpose to disable ureadahead during ARC Container
boot.

Write ARC++ install events to chrome log for integration test.

Used in autotest to specifies how to handle packages cache. Can be
copy - copy resulting packages.xml to the temporary directory.
skip-copy - skip initial packages cache setup and copy resulting packages.xml
to the temporary directory.

Used in autotest to forces Play Store auto-update state. Can be
on - auto-update is forced on.
off - auto-update is forced off.

Set the scale for ARC apps. This is in DPI. e.g. 280 DPI is ~ 1.75 device
scale factor.
See
https://source.android.com/compatibility/android-cdd#3_7_runtime_compatibility
for list of supported DPI values.

Defines how to start ARC. This can take one of the following values:
- always-start automatically start with Play Store UI support.
- always-start-with-no-play-store automatically start without Play Store UI.
If it is not set, then ARC is started in default mode.

Sets ARC Terms Of Service hostname url for testing.

Flag that indicates ARC is using dev caches generated by data collector in
Uprev rather than caches from CrOS build stage for arccachesetup service.

The following are the runtimes that WebXr supports.

This flag is set when the device's hardware meets the hardware requirements
for the ARCVM DLC.

Sets the mode of operation for ureadahead during ARCVM boot. If this switch
is not set, ARCVM ureadahead will check for the presence and age of pack
file and reads ahead files to page cache for improved boot performance.
readahead (default) - used during production and is equivalent to no switch
being set. This is used in tast test to explicitly turn
on guest ureadahead (see |kArcDisableUreadahead|).
generate - used during Android Uprev data collector to pre-generate pack file
and upload to Google Cloud as build artifact for CrOS build image.
disabled - used for test purpose to disable ureadahead during ARCVM boot.
note, |kArcDisableUreadahead| also disables both, guest and host
parts of ureadahead.

Madvises the kernel to use Huge Pages for guest memory.

Flag to launch tests in the browser process.

Allows the Ash shelf to apply the default pin layout without waiting for Sync
to download data from the server (which many tests can't achieve).

Clear the fast ink buffer upon creation. This is needed on some devices that
do not zero out new buffers.

Force the pointer (cursor) position to be kept inside root windows.

Overrides the minimum time that must pass between showing user contextual
nudges. Unit of time is in seconds.

Reset contextual nudge shown count on login.

Enable keyboard shortcuts useful for debugging.

Enable keyboard shortcuts used by developers only.

Disable the Touch Exploration Mode. Touch Exploration Mode will no longer be
turned on automatically when spoken feedback is enabled when this flag is
set.

Enables key bindings to scroll magnified screen.

Enables the palette on every display, instead of only the internal one.

Enables software based mirroring.

Hides notifications that are irrelevant to Chrome OS device factory testing,
such as battery level updates.

Sets a window size, optional position, optional scale factor and optional
panel radii.
"1024x768" creates a window of size 1024x768.
"100+200-1024x768" positions the window at 100,200.
"1024x768*2" sets the scale factor to 2 for a high DPI display.
"1024x768~15|15|12|12" sets the radii of the panel corners as
(upper_left=15px,upper_right=15px, lower_right=12px, upper_left=12px)
"800,0+800-800x800" for two displays at 800x800 resolution.
"800,0+800-800x800,0+1600-800x800" for three displays at 800x800 resolution.

Hides educational nudges that can interfere with tast integration tests.
Somewhat similar to --no-first-run but affects system UI behavior, not
browser behavior.

Power button position includes the power button's physical display side and
the percentage for power button center position to the display's
width/height in landscape_primary screen orientation. The value is a JSON
object containing a "position" property with the value "left", "right",
"top", or "bottom". For "left" and "right", a "y" property specifies the
button's center position as a fraction of the display's height (in [0.0,
1.0]) relative to the top of the display. For "top" and "bottom", an "x"
property gives the position as a fraction of the display's width relative to
the left side of the display.

The physical position info of the side volume button while in landscape
primary screen orientation. The value is a JSON object containing a "region"
property with the value "keyboard", "screen" and a "side" property with the
value "left", "right", "top", "bottom".

Enables the heads-up display for tracking touch points.

For client applications who expect a single Mojo invitation attachment with a
free-form name assigned to it, this specifies that attachment name. Either
this or kNumericAttachmentNames must be specified on the command line.

Bypasses the selection of the data to be filled by the
AttemptFormFillingTool and just picks the first suggestion for each form
section. This is only intended for testing.

Used in AttestationClient to determine which Google Privacy CA to use for
attestation.

Causes the Attribution Report API to run without delays or noise.

Allow users to specify a custom buffer size for debugging purpose.

Number of audio output channels. This will be used to send audio buffer with
specific number of channels to ALSA and generate loopback audio. Default
value is 2.

Specify fixed sample rate for audio output stream. If this flag is not
specified the StreamMixer will choose sample rate based on the sample rate of
the media stream.

If this switch is passed, the device policy DeviceMinimumVersion
assumes that the device has reached Auto Update Expiration. This is useful
for testing the policy behaviour on the DUT.

(Most) Chrome OS hardware reports ACPI power button releases correctly.
Standard hardware reports releases immediately after presses.  If set, we
lock the screen or shutdown the system immediately in response to a press
instead of displaying an interactive animation.

Allowlist for Negotiate Auth servers

The values the kTouchEventFeatureDetection switch may have, as in
--touch-events=disabled.
auto: enabled at startup when an attached touchscreen is present.

Automatically signs the user into Chrome when signing in to other Google
services on the web. This makes it easier for automated browsers to sign in.

Bypasses the dialog prompting the user for permission to capture
cameras and microphones. Useful in automatic tests of video-conferencing
Web applications.
This is nearly identical to kUseFakeUIForMediaStream, with the exception
being that this flag does NOT affect screen-capture.

These flags make Chrome auto-accept/reject requests to capture the current
tab. It should only be used for tests.

Skip the permission prompt for Captured Surface Control.

This flag makes Chrome auto-open DevTools window for each tab. It is
intended to be used by developers and automation to not require user
interaction for opening DevTools.

This flag makes Chrome auto-reject requests capture a tab/window/screen.

This flag makes Chrome auto-select the provided choice when an extension asks
permission to start desktop capture. Should only be used for tests. For
instance, --auto-select-desktop-capture-source="Entire screen" will
automatically select sharing the entire screen in English locales. The switch
value only needs to be substring of the capture source name, i.e. "display"
would match "Built-in display" and "External display", whichever comes first.

This flag makes Chrome auto-select any screen when an extension asks
permission to start desktop capture. Should only be used for tests.
kAutoSelectDesktopCaptureSource (see above) can be also be used to
auto-select screens. But it have the problem that you need to know the name
of a screen to auto-select it. The name of screens can't be set, are
different for different platforms, and are different if you have one or
several screens. So it's hard to use for auto-selecting screens.
This flag does not care what the screen name is, but it also gives no
control. Any screen could be chosen. It is useful in tests where we don't
care which screen is auto-selected.

This flag makes Chrome auto-select a tab with the provided title when
the media-picker should otherwise be displayed to the user. This switch
is very similar to kAutoSelectDesktopCaptureSource, but limits selection
to tabs. This solves the issue of kAutoSelectDesktopCaptureSource being
liable to accidentally capturing the Chromium window instead of the tab,
as both have the same title if the tab is focused.

This flag makes Chrome auto-select a window with the provided title when
the media-picker should otherwise be displayed to the user. This switch
is very similar to kAutoSelectDesktopCaptureSource, but limits selection
to the window.

Sets the API key that will be used when calling Autofill API instead of
using Chrome's baked key by default. You can use this to test new versions
of the API that are not linked to the Chrome baked key yet.

Override the default autofill server URL with "scheme://host[:port]/prefix/".

The number of days after which to reset the registry of autofill events for
which an upload has been sent.

Command line flag name to set the autoplay policy.

The number of pixels from the start of a left swipe gesture to consider as a
'back' gesture.

Sets a local folder destination for tracing data. This is only used if
kEnableBackgroundTracing is also specified.

Enables BIOD fake behavior. If the switch is set, fake biod D-Bus client is
initialized and BIOD events do not reach chrome.

Sets the birch ranker to assume it is evening for birch chip ranking
purposes.

Sets the birch ranker to assume it is morning for birch chip ranking
purposes.

Set blink settings. Format is <name>[=<value],<name>[=<value>],...
The names are declared in Settings.json5. For boolean type, use "true",
"false", or omit '=<value>' part to set to true. For enum type, use the int
value of the enum value. Applied after other command line flags and prefs.

Values for the kExtensionContentVerification flag.
See ContentVerifierDelegate::Mode for more explanation.

Allows passing a BorealisLaunchOptions string to the chrome process, which
will be stored in the kExtraLaunchOptions. For the format, see the
documentation in chrome/browser/ash/borealis/borealis_launch_options.h.

The number of pixels up from the bottom of the screen to consider as a valid
origin for a bottom swipe gesture. If set, overrides the value of both the
above system-gesture-start-height flag and the default value in
cast_system_gesture_handler.cc.

Specifies the user that the browser data backward migration should happen
for.

Backward migration mode. Passed with kBrowserDataBackwardMigrationForUser.

Specifies the user that the browser data migration should happen for.

Run move migration instead of copy. Passed with
kBrowserDataMigrationForUser.

Causes the browser process to display a dialog on launch.

Path to the exe to run for the renderer and plugin subprocesses.

Browser test mode for the |kStartStackProfiler| switch. Limits the profile
durations to be significantly less than the test timeout. On ChromeOS,
forces the stack sampling profiler to run on all processes as well.

Causes tests to attempt to verify pixel output.

Indicates that the browser is in "browse without sign-in" (Guest session)
mode. Should completely disable extensions, sync and bookmarks.

Switch to control which serving campaigns file versions to select in test
cohort. Example: --campaigns-test-tag=dev1 will select test cohort which
tag matches dev1.

Switch used to pass in a secret key for Campbell feature. Unless the correct
secret key is provided, Campbell feature will remain disabled, regardless of
the state of the associated feature flag.

Enable in-progress canvas 2d API methods BeginLayer and EndLayer.

Background color used when Chromium hasn't rendered anything yet.

When enabled by build flags, passing this argument allows the Cast
authentication utils to use a custom root developer certificate in the trust
store instead of the root Google-signed cert.

Used to pass initial screen resolution to GPU process.  This allows us to set
screen size correctly (so no need to resize when first window is created).

When enabled, prints a PEM-encoded the device certificate chain at VLOG
level 3.

If enabled, overrides the target playout delay for a casting mirroring
session. The value will be parsed as milliseconds. Lowering this value will
result in a lower end to end latency, but could come at the cost of other
quality standards such as dropped frames or FPS.

Command-line arg to change the Unix domain socket path to connect to the
Cast Mojo broker.

NOTE: callers should always use the free functions in
/media/cast/encoding/encoding_support.h instead of accessing these features
directly.
TODO(crbug.com/286443864): Guard Cast Sender flags with !IS_ANDROID.
If enabled, completely disables use of H264 hardware encoding for Cast
Streaming sessions. Takes precedence over
kCastStreamingForceEnableHardwareH264.

If enabled, completely disables use of VP8 hardware encoding for Cast
Streaming sessions. Takes precedence over
kCastStreamingForceEnableHardwareVp8.

If enabled, completely disables use of VP9 hardware encoding for Cast
Streaming sessions. Takes precedence over
kCastStreamingForceEnableHardwareVp9.

If enabled, allows use of H264 hardware encoding for Cast Streaming sessions,
even on platforms where it is disabled due to performance and reliability
issues. kCastStreamingForceDisableHardwareH264 must be disabled for this flag
to take effect.

If enabled, allows use of VP8 hardware encoding for Cast Streaming sessions,
even on platforms where it is disabled due to performance and reliability
issues. kCastStreamingForceDisableHardwareVp8 must be disabled for this flag
to take effect.

If enabled, allows use of VP9 hardware encoding for Cast Streaming sessions,
even on platforms where it is disabled due to performance and reliability
issues. kCastStreamingForceDisableHardwareVp9 must be disabled for this flag
to take effect.

Increases timeout for memory checkers.

Prevents the layer tree unit tests from timing out.

Controls the duration of the scroll animation curve.

If this flag is set, it indicates that this device is a "Cellular First"
device. Cellular First devices use cellular telephone data networks as
their primary means of connecting to the internet.
Setting this flag has two consequences:
1. Cellular data roaming will be enabled by default.
2. UpdateEngine will be instructed to allow auto-updating over cellular
data connections.

After a zygote forks a new process, change the stack canary. This switch is
useful so not all forked processes use the same canary (a secret value),
which can be vulnerable to information leaks and brute force attacks. See
https://crbug.com/1206626.
This requires that all functions on the stack at the time
content::RunZygote() is called be compiled without stack canaries.
Valid values are "enable" or "disable".

Checks damage early and aborts the frame if no damage, so that clients like
Android WebView don't invalidate unnecessarily.

How often (in seconds) to check for updates. Should only be used for testing
purposes.

Default large wallpaper to use for kids accounts (as path to trusted,
non-user-writable JPEG file).

Default small wallpaper to use for kids accounts (as path to trusted,
non-user-writable JPEG file).

Comma-separated list of SSL cipher suites to disable.

Values for the kAshUiMode flag.

Specifies the path to the Clear Key CDM for testing, which is necessary to
support External Clear Key key system when library CDM is enabled. Note that
External Clear Key key system support is also controlled by feature
kExternalClearKeyForTesting.

Clears the token service before using it. This allows simulating the
expiration of credentials during testing.

Start the GPU process for Dawn info collection immediately after the browser
starts. The default is to delay for 120 seconds.

Enable compensation for unstable pinch zoom. Some touch screens display
significant amount of wobble when moving a finger in a straight line. This
makes two finger scroll trigger an oscillating pinch zoom. See
crbug.com/394380 for details.

Always return success when compiling a shader. Linking will still fail.

Comma-separated options to troubleshoot the component updater. Only valid
for the browser process.

Optional testing override of the Trust Tokens key commitment component's
path.

Url for network connectivity checking. Default is
"https://clients3.google.com/generate_204".

Server url to upload crash data to.
Default is "https://clients2.google.com/cr/report" for prod devices.
Default is "https://clients2.google.com/cr/staging_report" for non prod.

Causes the browser process to crash on startup.

A process type (switches::kProcessType) that indicates chrome.exe or
setup.exe is being launched as crashpad_handler. This is only used on
Windows. We bundle the handler into chrome.exe on Windows because there is
high probability of a "new" .exe being blocked or interfered with by
application firewalls, AV software, etc. On other platforms, crashpad_handler
is a standalone executable.

Some platforms like ChromeOS default to empty desktop.
Browser tests may need to add this switch so that at least one browser
instance is created on startup.
TODO(nkostylev): Investigate if this switch could be removed.
(http://crbug.com/40933835)

If provided with kProfileEmail, prompts the user to create a new profile with
kProfileEmail as the email address if that email is not found in any existing
profile.

Prints licensing information (same content as found in about:credits) and
quits.

Enables cros disks fake behavior. If the switch is set, fake cros disk D-Bus
client is initialized and USB events do not reach chrome.

Forces CrOS region value.

Overrides the default URL for Google APIs (https://www.googleapis.com) used
by CryptAuth.

Overrides the default URL for CryptAuth v2 DeviceSync:
https://cryptauthdevicesync.googleapis.com.

Overrides the default URL for CryptAuth v2 Enrollment:
https://cryptauthenrollment.googleapis.com.

Normally the cryptohome without any any authentication factors
is considered corrupted. Special mechanism would detect such situation
during user creation and remove such users. If such user is an owner
the power wash should be triggered instead. However, if such event happens
in tests, all logs would be lost, and it would be difficult to investigate
exact reason behind the Owner user being misconfigured.
This flag prevents triggering powerwash in such cases, simple user removal
would be triggered instead.

Overrides the base url for the Cryptohome recovery service.

Forces cryptohome recovery process to use test environment (test keys /
URLs).

Controls if AuthSession API should be used when interacting with cryptohomed.

Forces cryptohome to create new users using old (ecryptfs) encryption.
This switch can be used to set up configurations that can be used to
test encryption migration scenarios.

Command-line flag that can be used to write extracted CSD features to disk.
This is also enables a few other behaviors that are useful for debugging.

Command-line flag that can be used to override the current CSD model. Must be
provided with an absolute path.

When specified with a url string as parameter, the given url overrides the
Android Messages for Web PWA installation and app urls using a base of the
given domain with approrpiate suffixes.

Specifies the http:// endpoint which will be used to serve
devtools://devtools/custom/<path>
Or a file:// URL to specify a custom file path to load from for
devtools://devtools/bundled/<path>

Switch to enable daemon-mode in crash_uploader.

Sets dark mode settings. Format is [<param>=<value>],[<param>=<value>],...
The params take either int or float values. If params are not specified,
the default dark mode settings is used. Valid params are given below.
"InversionAlgorithm" takes int value of DarkModeInversionAlgorithm enum.
"ImagePolicy" takes int value of DarkModeImagePolicy enum.
"ForegroundBrightnessThreshold" takes 0 to 255 int value.
"BackgroundBrightnessThreshold" takes 0 to 255 int value.
"ContrastPercent" takes -1.0 to 1.0 float value. Higher the value, more
the contrast.

Overrides data: URLs in SVGUseElement deprecation through enterprise policy.

Forces the stub implementation of D-Bus clients.
Using stub D-Bus clients is the default for non-Chrome OS environment, to use
real D-Bus clients in non-Chrome OS environment, set this flag to "never".

The default number of the BeginFrames to wait to activate a surface with
dependencies.

Override and enable features useful for BSA library testing/debugging.

Adds debugging entries such as Inspect Element to context menus of packed
apps.

The background color to be used if the page doesn't specify one. Provided as
RGB or RGBA integer value in hex, e.g. 'ff0000ff' for red or '00000000' for
transparent.

Sets the tile size used by composited layers.

This is only used when we did not set buffer size in trace config and will be
used for all trace sessions. If not provided, we will use the default value
provided in perfetto_config.cc

Indicates that the wallpaper images specified by
kAshDefaultWallpaper{Large,Small} are OEM-specific (i.e. they are not
downloadable from Google).

Default large wallpaper to use (as path to trusted, non-user-writable JPEG
file).

Default small wallpaper to use (as path to trusted, non-user-writable JPEG
file).

Interval in seconds to wait for a display to reconnect while unlocking or
logging in with a closed lid.

Defer initialization of the base::FeatureList in an external service process,
allowing the process to include its own non-default features.

Force the use of a Delegated Ink renderer as specified by
the command line argument, rather than using system details. Acceptable
values are: skia, system, none. Default to skia.

Switch to control which serving demo mode app versions to select in test
cohort. Example: --demo-app-test-tag=dev1 will select test cohort which tag
matches dev1.

Test Organization Unit (OU) user to use for demo mode. Only pass the part
before "@cros-demo-mode.com".

Force ARC provision to take code path for offline demo mode.

App ID to use for highlights app in demo mode.

Directory from which to fetch the demo mode resource content (instead of
downloading from Omaha).

App ID to use for screensaver app in demo mode.

API key for demo mode server.

Override the prodution demo mode api url fo demo account sign in.

Directory from which to fetch the demo mode SWA content (instead of
downloading from Omaha).

Prevents permission prompts from appearing by denying instead of showing
prompts.

Time in seconds before a machine at OOBE is considered derelict.

Time in seconds before a derelict machines starts demo mode.

When present, desktop cast_shell will create 1080p window (provided display
resolution is high enough).  Otherwise, cast_shell defaults to 720p.

Specifies the URL at which to communicate with the device management backend
to fetch configuration policies and perform other device tasks.

Directory to output JavaScript code coverage. When supplied enables coverage
in selected browser tests.

Passes command line parameters to the DevTools front-end.

Enables the experimental GreenDev UI in DevTools.

Triggers a plethora of diagnostic modes.

Sets the output format for diagnostic modes enabled by diagnostics flag.

Tells the diagnostics mode to do the requested recovery step(s).

Used for overriding the swap chain format for direct composition SDR video
overlays.

Disable antialiasing on 2d canvas clips

Disables client-visible 3D APIs, in particular WebGL.
This is controlled by policy and is kept separate from the other
enable/disable switches to avoid accidentally regressing the policy
support for controlling access to these APIs.

Disable gpu-accelerated 2d canvas.

Disable hardware acceleration of mjpeg decode for captured frame, where
available.

Disables hardware acceleration of video decode, where available.
Warning: do not remove or rename this flag, as it is used inside ChromeOS
code to implement the DeviceHardwareVideoDecodingEnabled policy.

Disables hardware acceleration of video encode, where available.

Bypasses several of the actor's safety checks, such as requiring SafeBrowsing
to be enabled and the blocklist.
Note that some checks, like requiring https, are not affected by this.

Disables reporting of frame timing via ADPF, even if supported on the device.

Disables specified comma separated ANGLE features if found.

Prevents any CPU restrictions being set on ARC[VM]. Only meant to be used by
tests as some tests may time out if the ARC container is throttled.

Disables ARC Opt-in verification process and ARC is enabled by default.

Forces input and output stream creation to use fake audio streams.

Disable auto-reload of pages on top-level error.

Disables the BackForwardCache feature.

Do not immediately suspend media in background tabs.

Disable several subsystems which run network requests in the background.
This is for use when doing network performance testing to avoid noise in the
measurements.

Disable task throttling of timer tasks from background pages.

Disable backgrounding renders for occluded windows. Done for tests to avoid
nondeterministic behavior.

Disable limits on the number of backing stores. Can prevent blinking for
users with many windows/tabs and lots of memory.

Disables the Weather API from being called by Birch. Allows fake users in
tast tests to avoid making API calls using an invalid GAIA ID, which causes
errors on the weather server side.

Disable one or more Blink runtime-enabled features.
Use names from runtime_enabled_features.json5, separated by commas.
Applied after kEnableBlinkFeatures, and after other flags that change these
features.

Toggles partitioning of Blob URLs through enterprise policy.

Disable antialiasing on 2d canvas.

Disabled defering all image decodes to the image decode service, ignoring
DecodingMode preferences specified on PaintImage.

Disable the tracing service graph compuation while writing the trace.

Disable default component extensions with background pages - useful for
performance tests where these pages may interfere with perf results.

Disables layer-edge anti-aliasing in the compositor.

Switch to disable Crash reporting

Disables crashpad initialization for testing. The crashpad binary will not
run, and thus will not detect and symbolize crashes.

Switch to disable Crashpad forwarding

Explicitly disable D3D11 WARP fallback. Some test suites prefer falling back
to swiftshader.

Set the Dawn features(toggles) disabled on the creation of Dawn devices.

Disables installation of default apps on first run. This is used during
automated testing.

Disables the Chrome OS demo.

If this switch is set, the device cannot be remotely disabled by its owner.

Disables the dinosaur easter egg on the offline interstitial.

Disable DirectComposition.

Disable the per-domain blocking for 3D APIs after GPU reset.
This switch is intended only for tests.

Disables Domain Reliability Monitoring.

Disables DriveFS for testing purposes, used in tast testing and only on test
images.

Disable explicit DMA-fences

Disable field trial tests configured in fieldtrial_testing_config.json.

Disable FileSystem API.

Disables fine grained time zone detection.

Disables first-run UI from being shown.

Force disables font subpixel positioning. This affects the character glyph
sharpness, kerning, hinting and layout.

Disables begin frame limiting in both cc scheduler and display scheduler.
Also implies --disable-gpu-vsync (see //ui/gl/gl_switches.h).
TODO(ananta/jonross/sunnyps)
http://crbug.com/346931323
We should remove or change this once VRR support is implemented for
Windows and other platforms potentially.

Disables GAIA services such as enrollment and OAuth session restore. Used by
'fake' telemetry login.

Disable user gesture requirement for presentation.

Disables GL drawing operations which produce pixel output. With this
the GL output will not be correct but tests will run faster.

Disable the GL error log limit.

Disables specified comma separated GL Extensions if found.

Disable the GLSL translator.

Disables GPU hardware acceleration.  If software renderer is not in place,
then the GPU process won't launch.

Prevent the compositor from using its GPU implementation.

Disable workarounds for various GPU driver bugs.

Disable proactive early init of GPU process.

Do not force that all compositor resources be backed by GPU memory buffers.

Disable GpuMemoryBuffer backed VideoFrames.

For tests, to disable the limit on the number of times the GPU process may be
restarted.

Disables the non-sandboxed GPU process for DX12 info collection

Turn off gpu program caching

Disable GPU rasterization, i.e. rasterize on the CPU only.
Overrides the kEnableGpuRasterization flag.

Disables the GPU process sandbox.

Disables the GPU shader on disk cache.

Stop the GPU from synchronizing presentation with vblank.

Disable the thread that crashes the GPU process if it stops responding to
messages.

Suppresses hang monitor dialogs in renderer processes.  This may allow slow
unload handlers on a page to prevent the tab from closing, but the Task
Manager can be used to terminate the offending process in this case.

Disable the HID blocklist.

Disables HID-detection OOBE screen.

Disable the RenderThread's HistogramCustomizer.

Disables the IgnoreDuplicateNavs feature. This prevent navigations from
being unintentionally ignored in tests.

Disallow image animations to be reset to the beginning to avoid skipping
many frames. Only effective if compositor image animations are enabled.

Disables the in-process stack traces.

Disables the IPC flooding protection.
It is activated by default. Some javascript functions can be used to flood
the browser process with IPC. This protection limits the rate at which they
can be used.

Disable latest shipping ECMAScript 6 features.

Don't kill a child process when it sends a bad IPC message.  Apart
from testing, it is a bad idea from a security perspective to enable
this switch.

Disables the Landlock sandbox (Android only).

Disables LayerTreeHost::OnMemoryPressure

Disables lazy loading of images and frames.

Disables LCD text.

Disable LocalStorage.

Force logging to be disabled.  Logging is enabled by default in debug
builds.

Avoid doing expensive animations upon login.

Disables using CODECAPI_AVLowLatencyMode when creating DXVA decoders.

Disables requests for an enterprise machine certificate during attestation.

Disables sending the next BeginMainFrame before the previous commit
activates. Overrides the kEnableMainFrameBeforeActivation flag.

Disables renaming the main browser thread to "CrBrowserMain" during browser
startup. The internally mapped thread name is being emitted to Perfetto
traces, which means that the main thread is identified as "CrBrowserMain"
instead of the process name. Enabling this switch will prevent the thread
from being named, which fixes the Perfetto trace issue.

Disables mipmap generation in Skia. Used a workaround for select low memory
devices, see https://crbug.com/1138979 for details.

Disables Mojo broker capabilities in the browser during Mojo initialization.

Rather than use the renderer hosted remotely in the media service, fall back
to the default renderer within content_renderer. Does not change the behavior
of the media service.

Disables usage of the namespace sandbox.

Disables clearing the rendering output of a renderer when it didn't commit
new output for a while after a top-frame navigation.

Disables the Web Notification and the Push APIs.

Disables the video decoder from drawing to an NV12 textures instead of ARGB.

Disables the ChromeVox hint idle detection in OOBE, which can lead to
unexpected behavior during tests.

Disables network screen skip check which is based on ethernet connection.

Disables all RuntimeEnabledFeatures that can be enabled via OriginTrials.

Disable partial raster in the renderer. Disabling this switch also disables
the use of persistent gpu memory buffers.

Do not emit tags when printing PDFs.

Disables per-user timezone.

Disables compositor-accelerated touch-screen pinch gestures.

Disables the activation of browser and web accessibility via interactions
with the platform's accessibility integration (i.e., a screenreader will not
be able to function with the browser).

Disables pop-up blocking.

If set, the power button in tablet mode is disabled.

Disable the creation of compositing layers when it would prevent LCD text.

Disables the Presentation API.

Disables print preview (For testing, and for users who don't like us. :[ )

Normally when the user attempts to navigate to a page that was the result of
a post we prompt to make sure they want to. This switch may be used to
disable that check. This switch is used during automated testing.

Disables throttling of history.pushState/replaceState calls.

Taints all <canvas> elements, regardless of origin.

Override mechanism for ReduceAcceptLanguage. This feature is typically
controlled by base features, but requires an enterprise policy override.

Disables remote web font support. SVG font should always work whether this
option is specified or not.

Disables the RemotePlayback API.

Turns off the accessibility in the renderer.

Prevent renderer process backgrounding when set.

Whether the ResourceScheduler is disabled.  Note this is only useful for C++
Headless embedders who need to implement their own resource scheduling.

Disables RGBA_4444 textures.

Disables rollback option on reset screen.

Disables the new rendering algorithm for webrtc, which is designed to improve
the rendering smoothness.

This switch disables the ScrollToTextFragment feature.

Disable the search engine choice screen for testing / autmation.

Disable the seccomp filter sandbox (seccomp-bpf) (Linux only).

Disable the setuid sandbox (Linux only).

Turn off user-defined name hashing in shaders.

The switch to disable the shared dictionary storage clean up task. Only for
testing.

Disable shared workers.

Disables site isolation.
Note that the opt-in (to site-per-process, isolate-origins, etc.) via
enterprise policy and/or cmdline takes precedence over the
kDisableSiteIsolation switch (i.e. the opt-in takes effect despite potential
presence of kDisableSiteIsolation switch).
Note that for historic reasons the name of the switch misleadingly mentions
"trials", but the switch also disables the default site isolation that ships
on desktop since M67.  The name of the switch is preserved for
backcompatibility of chrome://flags.

Force disabling/enabling Skia Graphite. Disabling will take precedence over
enabling if both are specified.

Force disabling/enabling Skia Graphite's Pipeline Precompilation. Disabling
will take precedence over enabling if both are specified.

Do not use runtime-detected high-end CPU optimizations in Skia.  This is
useful for forcing a baseline code path for e.g. web tests.

Disable smooth scrolling for testing.

For tests, to disable falling back to software compositing if the GPU Process
has crashed, and reached the GPU Process crash limit.

Disables the use of a 3D software rasterizer.

Disables the Web Speech API (both speech recognition and synthesis).

Disables the speech synthesis part of Web Speech API.

Disable stack profiling. Stack profiling may change performance. Disabling
stack profiling is beneficial when comparing performance metrics with a
build that has it disabled by default.

Override mechanism for preserving the old non-standard behavior of CSS zoom.

Disable multithreaded GPU compositing of web content.

Disable startup of the updater process.

Disable V8 idle tasks.

Disable variations safe mode.

Disable fetching of variations seed from the server for testing.

Disables throttling for fetching the variations seed on mobile platforms. The
seed will be fetched on startup and every time the app enters the foreground,
regardless of the time passed in between the fetches. On Desktop, this switch
has no effect (the seed is fetched periodically instead).

This is for the same feature controlled by kVideoCaptureUseGpuMemoryBuffer.
kVideoCaptureUseGpuMemoryBuffer is settled by chromeos overlays. This flag is
necessary to overwrite the settings via chrome:// flag. The behavior of
chrome://flag#zero-copy-video-capture is as follows;
Default  : Respect chromeos overlays settings.
Enabled  : Force to enable kVideoCaptureUseGpuMemoryBuffer.
Disabled : Force to disable kVideoCaptureUseGpuMemoryBuffer.

Disables volume adjust sound.

Disables falling back to GL based hardware rendering if initializing Vulkan
fails. This is to allow tests to catch regressions in Vulkan.

Disables VK_KHR_surface extension. Instead of using swapchain, bitblt will be
used for present render result on screen.

Disable wayland input method editor.

Don't enforce the same-origin policy; meant for website testing only.
This switch has no effect unless --user-data-dir (as defined by the content
embedder) is also present.

Disable all versions of WebGL.

Disable WebGL2.

Disables encryption of RTP Media for WebRTC. When Chrome embeds Content, it
ignores this switch on its stable and beta channels.

Disables the Welcome Recap feature for factory testing.

Disable YUV image decoding for those formats and cases where it's supported.
Has no effect unless GPU rasterization is enabled.

Some tests seem to require the application to close when the last
browser window is closed. Thus, we need a switch to force this behavior
for ChromeOS Aura, disable "zero window mode".
TODO(pkotwicz): Investigate if this bug can be removed.
(http://crbug.com/40756809)

Disable rasterizer that writes directly to GPU memory associated with tiles.

Disable the video decoder from drawing directly to a texture.

disabled: touch events are disabled.

Disallow blocking developer mode through enterprise device policy:
- Fail enterprise enrollment if enrolling would block dev mode.
- Don't apply new device policy if it would block dev mode.
This is only usable on test builds.

Disallows overriding of v8 feature flags.

Use a specific disk cache location, rather than one derived from the
UserDatadir.

Forces the maximum disk space to be used by the disk cache, in bytes.

Do not de-elevate the browser on launch. Used after de-elevating to prevent
infinite loops.

Autoplay policy that requires a document user activation.

Specifies if the |DOMAutomationController| needs to be bound in the
renderer. This binding happens on per-frame basis and hence can potentially
be a performance bottleneck. One should only enable it when automating dom
based tests.

Sets the number of max pending frames in the GL buffer queue to 1.

Logs Runtime Call Stats. --single-process also needs to be used along with
this for the stats to be logged.

Requests that a running browser process dump its collected histograms to a
given file. The file is overwritten if it exists.

Save CompositorFrame data in both renderer and gpu process for TreesInViz
and TreeAnimationsInViz. This doesn't work without --no-sandbox.
If no parameters are specified, by default, it records frame 1 - 10.
If --dump-compositor-frame=begin,end is specified, it records frame
[begin, end] inclusive.

Print the serialized DOM (doctype + document.documentElement.outerHTML) to
stdout.

Switch to dumpstate binary path.

Forces logging of the actor aggregated journal events in VLOG(1). Useful on
Android as VLOGs are removed on official builds.

Enable the aggressive flushing of DOM Storage to minimize data loss.

ANGLE features are defined per-backend in third_party/angle/include/platform
Enables specified comma separated ANGLE features if found.

DEPRECATED. Please use --arc-availability=officially-supported.
Enables starting the ARC instance upon session start.

Enables ARCVM.

Enables ARCVM DLC.

If the WebRTC logging private API is active, enables audio debug recordings.

Enable auto-reload of pages on top-level error.

Enable indication that browser is controlled by automation.

Enables background tracing by passing a scenarios config as an argument. The
config is a serialized proto perfetto.protos.ChromeFieldTracingConfig
defined in
third_party/perfetto/protos/perfetto/config/chrome/scenario_config.proto.
protoc can be used to generate a serialized proto config with
protoc
--encode=perfetto.protos.ChromeFieldTracingConfig
--proto_path=third_party/perfetto/
third_party/perfetto/protos/perfetto/config/chrome/scenario_config.proto
< {input txt config}.pbtxt > {output proto config}.pb

Enables the benchmarking JavaScript API.

Used to override kDisableBirchWeatherApiForTesting for specific tast tests.

Enable one or more Blink runtime-enabled features.
Use names from runtime_enabled_features.json5, separated by commas.
Applied before kDisableBlinkFeatures, and after other flags that change these
features.

Enables blink runtime enabled features with status:"test" or
status:"experimental", which are enabled when running web tests.

Enables the multi-level undo system for bookmarks.

Enable native caret browsing, in which a moveable cursor is placed on a web
page, allowing a user to select and navigate through non-editable text using
just a keyboard. See https://crbug.com/977390 for links to i2i.

Enables the Cast Receiver.

Enables the Chrome Browser Cloud Management integration on Chromium builds.
CBCM is always enabled in branded builds.

Enable validation layers in Dawn backends.

Set the Dawn features(toggles) enabled on the creation of Dawn devices.

Enable desktop Android scrollbars.

Enables Shelf Dimming for ChromeOS.

Enable the dinosaur easter egg alternative images.

Enable DirectComposition video overlays even if hardware doesn't support it.

Enables Domain Reliability Monitoring.

Shows additional automatic click features that haven't launched yet.

Enables support for visually debugging the accessibility labels
feature, which provides images descriptions for screen reader users.

Enables language detection on in-page text content which is then exposed to
assistive technology such as screen readers.

Enables language detection for dynamic content which is then exposed to
assistive technology such as screen readers.

Switches accessibility extensions to use extensions manifest v3 while the
migration is still in progress.

Enables in progress Switch Access features for text input.

Flag that turns on a group of experimental/newly added cookie-related
features together, as a convenience for e.g. testing, to avoid having to set
multiple switches individually which may be error-prone (not to mention
tedious). There is not a corresponding switch to disable all these features,
because that is discouraged, and for testing purposes you'd need to switch
them off individually to identify the problematic feature anyway.
At present this turns on:
net::features::kSameSiteDefaultChecksMethodRigorously
net::features::kCookieSameSiteConsidersRedirectChain
net::features::kEnablePortBoundCookies
net::features::kEnableSchemeBoundCookies

Enables Web Platform features that are in development.

Enables experimental WebAssembly features.

Enables logging for extension activity.

Name of the command line flag to allow the experimental actor API.

Name of the command line flag to allow the ai data collection extension API.

Enables sharing assets for installed default apps.

Enable field trial tests configured in fieldtrial_testing_config.json. If the
"disable_fieldtrial_testing_config" GN flag is set to true, then this switch
is a no-op. Otherwise, for non-Chrome branded builds, the testing config is
already applied by default, unless the "--disable-field-trial-config",
"--force-fieldtrials", and/or "--variations-server-url" switches are passed.
It is however possible to apply the testing config as well as specify
additional field trials (using "--force-fieldtrials") by using this switch.
For Chrome-branded builds, the testing config is not enabled by default, so
this switch is required to enable it.

Enables delta-compression when fetching a new seed via the "first run" code
path on Android.

Enables the GPU benchmarking extension

Enables measures of how long GPU Main Thread was blocked between SwapBuffers

Enable GPU client logging.

Enables TRACE for GL calls in the renderer.

Turn on Logging GPU commands.

Turn on Calling GL Error after every command.

Enable logging of GPU driver debug messages.

Enables ThreadControllerWithMessagePumpImpl's TimeKeeper UMA metrics using
CrGpuMain as suffix.

Specify that all compositor resources should be backed by GPU memory buffers.

Enable GpuMemoryBuffer backed VideoFrames.

Allow heuristics to determine when a layer tile should be drawn with the
Skia GPU backend. Only valid with GPU accelerated compositing.

Enable GPU service logging. Note: This is the same switch as the one in
gl_switches.cc. It's defined here again to avoid dependencies between
dlls.

Turns on calling TRACE for every GL call.

Force enabling HangoutServicesExtension.

Enable compositing individual elements via hardware overlays when
permitted by device.
Setting the flag to "single-fullscreen" will try to promote a single
fullscreen overlay and use it as main framebuffer where possible.

Enables the use of 32-bit Houdini library for ARM binary translation.

Enables the use of 64-bit Houdini library for ARM binary translation.

Enables input event handling by the window manager.

Enables Isolated Web Apps (IWAs) in a renderer process. There are two ways
to enable the IWAs: by feature flag and by enterprise policy. If IWAs are
enabled by any of the mentioned above ways then this flag is passed to
the renderer process. This flag should not be used from command line.
To enable IWAs from command line one should use kIsolatedWebApps feature
flag.

Enables LCD text.

Enables taking a heap snapshot and dumping it to file when using leak
detection.

Sets the default value for the kLiveCaptionEnabled preference to true.

Enable file accesses. It should not be enabled for most Cast devices.

Force logging to be enabled.  Logging is disabled by default in release
builds.

Enables the switchover to the newer NSAccessibility property-based API.

Enables debug feature for drawing rectangle around magnified region, without
zooming in.

Enables sending the next BeginMainFrame before the previous commit activates.

Enables model quality logs regardless of other client-side settings, as long
as the client is a dogfood client.

Enable native CPU-mappable GPU memory buffer support on Linux.

Enables natural scroll by default.

Enables the use of 32-bit NDK translation library for ARM binary translation.

Enables the use of 64-bit NDK translation library for ARM binary translation.

Enables the network-related benchmarking extensions.

Enables the type, downlinkMax attributes of the NetInfo API. Also, enables
triggering of change attribute of the NetInfo API when there is a change in
the connection type.

Enables using the default search engine country to show country specific
popular sites on the NTP.

Enables the ChromeVox hint in OOBE for dev mode. This flag is used
to override the default dev mode behavior of disabling the feature.
If both kEnableOOBEChromeVoxHintForDevMode and
kDisableOOBEChromeVoxHintTimerForTesting are present, the ChromeVox hint
will be disabled, since the latter flag takes precedence over the former.

Enables OOBE testing API for tast tests.

Forces tests to produce pixel output when they normally wouldn't.

Enables testing features of the Plugin Placeholder. For internal use only.

Enables a number of potentially annoying security features (strict mixed
content mode, powerful feature restrictions, etc.)

Make the values returned to window.performance.memory more granular and more
up to date in shared worker. Without this flag, the memory information is
still available, but it is bucketized and updated less frequently. This flag
also applys to workers.

Enable the creation of compositing layers when it would prevent LCD text.

Enables Privacy Sandbox APIs: Attribution Reporting, Fledge, Topics, Fenced
Frames, Shared Storage, Private Aggregation, and their associated features.

Enables raster side dark mode for images.

Enables configuring the OEM Device Requisition in the OOBE.

Enables RGBA_4444 textures.

Allows scaling clipped images in GpuImageDecodeCache. Note that this may
cause color-bleeding.
TODO(crbug.com/40160880): Remove this workaround flag once the underlying
cache problems are solved.

If true the ServiceProcessLauncher is used to launch services. This allows
for service binaries to be loaded rather than using the utility process. This
is only useful for tests.

Enable the tracing service.

Enable use of the SGI_video_sync extension, which can have
driver/sandbox/window manager compatibility issues.

Enables the Skia benchmarking extension.

On platforms that support it, enables smooth scroll animation.

Enable spatial navigation

Specifies if the |StatsCollectionController| needs to be bound in the
renderer. This binding happens on per-frame basis and hence can potentially
be a performance bottleneck. One should only enable it when running a test
that needs to access the provided statistics.

Blocks all insecure requests from secure contexts, and prevents the user
from overriding that decision.

Enables SwapBuffersWithBounds if it is supported.

Enables tablet form factor.

Simulates shared textures when share groups are not available. Not available
everywhere.

Whether to enable detection and dispatch of a 'drag from the top' gesture.

Enables the touch calibration option in MD settings UI for valid touch
displays.

Enables touchpad three-finger-click as middle button.

If the flag is present, it indicates 1) the device has accelerometer and 2)
the device is a convertible device or a tablet device (thus is capable of
entering tablet mode). If this flag is not set, then the device is not
capable of entering tablet mode. For example, Samus has accelerometer, but
is not a covertible or tablet, thus doesn't have this flag set, thus can't
enter tablet mode.

When specified along with a value in the range (0,1] will --enable-tracing
for (roughly) that percentage of tests being run. This is done in a stable
manner such that the same tests are chosen each run, and under the assumption
that tests hash equally across the range of possible values.
The flag will enable all tracing categories for those tests, and none for the
rest. This flag could be used with other tracing switches like
--enable-tracing-format, but any other switches that will enable tracing will
turn tracing on for all tests.

Similar to the flag above, with the following differences:
- A more detailed basename will be generated.
- If the value is empty or ends with path separator, the provided directory
will be used (with empty standing for current directory) and a detailed
basename file will be generated.
It is ignored if --trace-startup-file is specified.

Enables DevTools server for UI (mus, ash, etc). Value should be the port the
server is started on. Default port is 9223.

Enables installing/uninstalling extensions at runtime via Chrome DevTools
Protocol if the protocol client is connected over --remote-debugging-pipe.

Allow usage of SwiftShader for WebGL

Enable screen capturing support for MediaStream API.

Enables the use of the @viewport CSS rule, which allows
pages to control aspects of their own layout. This also turns on touch-screen
pinch gestures.

Enable the Vtune profiler support.

Enables using protected memory for vulkan resources.

Try to enable wayland input method editor.

Enable the wayland server.

Enables WebGL developer extensions which are not generally exposed
to the web platform.

Enables WebGL extensions not yet approved by the community.

Enables WebGPU developer features which are not generally exposed to the web
platform.

Enable rasterizer that writes directly to GPU memory associated with tiles.

enabled: touch events always enabled.

Specifies the URL at which to upload encrypted reports.

Force running the test cases listed in the positive filter file with full
name (not wildcard). If set, only exact positive filter from the filter
file is allowed. Passing --gtest_filter, positive wildcard filters, or
negative filters will fail the test launcher.
If any test case is disabled or deleted in source files, the test suite
fails.

Enforce GL minimums.

Crash the browser at startup if the display's color profile does not match
the forced color profile. This is necessary on Mac because Chrome's pixel
output is always subject to the color conversion performed by the operating
system. On all other platforms, this is a no-op.

Disables ARC for managed accounts.

Whether to enable forced enterprise re-enrollment on Flex.

Whether to enable state determination.

Whether to force manual enrollment instead of trying cert based enrollment.
Only works on test builds.

Ignore the profile creation time when determining whether to show the end of
life notification incentive. This is meant to make manual testing easier.

Reset the end of life notification prefs to their default value, at the
start of the user session. This is meant to make manual testing easier.

Allows experimental ai extension APIs to be used in stable channel.
This disables chrome sign-in if set, regardless of channel.

Allows overriding the list of restricted ports by passing a comma-separated
list of port numbers.

Enables the observing of all UMA logs created during the session and
automatically exports them to the passed file path on shutdown (the file is
created if it does not already exist). This also enables viewing all UMA logs
in the chrome://metrics-internals debug page. The format of the exported file
is outlined in MetricsServiceObserver::ExportLogsAsJson().
Example usage: --export-uma-logs-to-file=/tmp/logs.json

Name of the command line flag to force content verification to be on in one
of various modes.

Write extension install events to chrome log for integration test.

Interval in seconds between Chrome reading external metrics from
/var/lib/metrics/uma-events.

Additional query params to insert in the search and instant URLs.  Useful for
testing.

Name of a subdirectory of the main external web apps directory which
additional web apps configs should be loaded from. Used to load
device-specific web apps.

Causes the AudioManager to fail creating audio streams. Used when testing
various failure cases.

Specifies number of recommended (fake) ARC apps during user onboarding.
App descriptions are generated locally instead of being fetched from server.
Limited to ChromeOS-on-linux and test images only.

Inserts fake background blur state into VideoFrameMetadata. The value
represents the period in milliseconds. eg. Setting it to 1000ms, will cause
the blur state to cycle between reporting ENABLED for 500ms and DISABLED for
500ms.

An absolute path to the chroot hosting the DriveFS to use. This is only used
when running on Linux, i.e. when IsRunningOnChromeOS() returns false.

A relative path to socket to communicat with the fake DriveFS launcher within
the chroot specified by kFakeDriveFsLauncherChrootPath. This is only used
when running on Linux, i.e. when IsRunningOnChromeOS() returns false.

Path to a OOBE configuration JSON file (used by FakeOobeConfigurationClient).

Fakes the channel of the browser for purposes of Variations filtering. This
is to be used for testing only. Possible values are "stable", "beta", "dev"
and "canary". This works for official builds as well.

Value indicating whether flag from command line switch is false.

Alternative feedback server to use when submitting user feedback

Specifies the URL at which to communicate with File Storage Server
(go/crosman-file-storage-server) to upload log and support packet files.

Define an alias root directory which is replaced with the replacement string
in file URLs. The format is "/alias=/replacement", which would turn
file:///alias/some/path.html into file:///replacement/some/path.html.

The length of time in seconds that an app's copy of the variations seed
should be considered fresh. If an app's seed is older than this, a new seed
will be requested from WebView's IVariationsSeedServer.

Forces WebView's service to always schedule a new variations seed download
job, even if one is already pending.

The minimum amount of time in seconds that WebView's service will wait
between two variations seed downloads from the variations server.

The minimum amount of time in seconds that the embedded WebView
implementation will wait between two requests to WebView's service for a new
variations seed.

Forces WebView's service to always schedule a new variations seed download
job, even if the device is not charging. Note this switch may be necessary
for testing on Android emulators as these are not always considered to be
charging.

Fingerprint sensor location indicates the physical sensor's location. The
value is a string with possible values: "power-button-top-left",
"keyboard-bottom-left", keyboard-bottom-right", "keyboard-top-right".

Passed to Chrome the first time that it's run after the system boots.
Not passed on restart after sign out.

These two flags are added around the switches about:flags adds to the
command line. This is useful to see which switches were added by about:flags
on about:version. They don't have any effect.

Activates an existing tab or app window by URL or app id before creating
anything new. Syntax: comma-ordered selectors. Bare URLs are exact.
Add a trailing * for prefix. app:<app-id> targets PWAs.
Example: --focus=https://meet.google.com/*,app:abc123

Specifies a file path to write JSON focus result information.

Specifies the variation of Zero State extensions toolbar recommendation to
show.
When a user with zero extensions installed clicks on the extensions puzzle
piece in the Chrome toolbar, Chrome displays a submenu suggesting the user
to explore the Chrome Web Store.
Forces application mode. This hides certain system UI elements and forces
the app to be installed if it hasn't been already.

Forces a fake backend to generate coral groups.

Forces a chip with fake coral group to be shown.

Forces a fetch of Birch data whenever an informed restore session starts.

If set, skips the logic in birch release notes provider and always sets
release notes item.

Crash Chrome if GPU process crashes. This is to force a test to fail when
GPU process crashes unexpectedly.

Force skip or force migration. Should only be used for testing.

Force all monitors to be treated as though they have the specified color
profile. Accepted values are "srgb" and "generic-rgb" (currently used by Mac
layout tests) and "color-spin-gamma24" (used by layout tests).

Forces fetching tokens for Cryptohome Recovery.

Overrides the device scale factor for the browser UI and the contents.

Forces to remove Chrome Variation Ids from being sent in X-Client-Data
header, specified as a 64-bit encoded list of numeric experiment ids. Ids
prefixed with the character "t" will be treated as Trigger Variation Ids.

Forces Network Quality Estimator (NQE) to return a specific effective
connection type.

Forces metrics reporting to be enabled. Should not be used for tests as it
will send data to servers.

Enables the stylus tools next to the status area.

This option can be used to force parameters of field trials when testing
changes locally. The argument is a param list of (key, value) pairs prefixed
by an associated (trial, group) pair. You specify the param list for multiple
(trial, group) pairs with a comma separator.
Example:
"Trial1.Group1:k1/v1/k2/v2,Trial2.Group2:k3/v3/k4/v4"
Trial names, groups names, parameter names, and value should all be URL
escaped for all non-alphanumeric characters.

Displays the First Run experience when the browser is started, regardless of
whether or not it's actually the First Run (this overrides kNoFirstRun).

Forces first-run UI to be shown for every login.

Sets the total amount of memory that may be allocated for GPU resources in
cc.

Sets the maximum GPU memory to use for discardable caches.

Force enables the Happiness Tracking System for the device. This ignores
user profile check and time limits and shows the notification every time
for any type of user. Should be used only for testing.

Forces Hardware ID check (happens during OOBE) to fail or succeed. Possible
values: "failure" or "success". Should be used only for testing.

Forces FullRestoreService to launch browser for telemetry tests.

Usually in browser tests the usual login manager bringup is skipped so that
tests can change how it's brought up. This flag disables that.

Sets the maximum texture size in pixels.

When present overrides the screen resolution used by CanDisplayType API,
instead of using the values obtained from avsettings.

Forces the use of the mojo renderer. In other words, the renderer process
will run a mojo renderer and CastRenderer will run in the browser process.
This is necessary for devices that use CastRenderer.
For this flag to have any effect, note that you must build the cast web
runtime with the gn arg "enable_cast_renderer" set to true, and "renderer"
must be included in the list "mojo_media_services".
This flag has lower priority than "disable-mojo-renderer".

Forces MSBB setting to be on for UKM recording. Should only be used in
automated testing browser sessions in which it is infeasible or impractical
to toggle the setting manually.

If set, the unload event cannot be disabled by default by Permissions-Policy.

Forces whether the user desires no reduced motion, regardless of system
settings.

Forces whether the user desires reduced motion, regardless of system
settings.

This forces pages to be loaded as presentation receivers.  Useful for testing
behavior specific to presentation receivers.
Spec: https://www.w3.org/TR/presentation-api/#interface-presentationreceiver

Force rastering to take place in the specified color profile. Accepted values
are the same as for the kForceDisplayColorProfile case above.

On devices that support refresh rate throttling, force the throttling
behavior to be active regardless of system state.

Force renderer accessibility to be on instead of enabling it on demand when
a screen reader is detected. The disable-renderer-accessibility switch
overrides this if present.
This switch has an optional parameter that forces an AXMode bundle. The three
available bundle settings are: 'basic', 'form-controls', and 'complete'. If
the bundle argument is invalid, then the forced AXMode will default to
'complete'. If the bundle argument is missing, then the initial AXMode will
default to complete but allow changes to the AXMode during execution.

Force-enable showing the search engine choice screen for testing regardless
of region or choice already having been made.

Force the use of a separate EGL display for WebGL contexts. Used for testing
multi-GPU pathways on devices with only one valid GPU.

Forces the cursor to be shown even if we are mimicking touch events. Note
that cursor changes are locked when using this switch.

Force the "release track" UI to show in the system tray. Simulates the system
being on a non-stable release channel with feedback enabled.

Forces the status area to allow collapse/expand regardless of the current
state.

Enables required things for the selected UI mode, regardless of whether the
Chromebook is currently in the selected UI mode.

If set, tablet-like power button behavior (i.e. tapping the button turns the
screen off) is used even if the device is in laptop mode.

Force the text rendering to a specific direction. Valid values are "ltr"
(left-to-right) and "rtl" (right-to-left). Only tested meaningfully with
RTL.

Force the UI to a specific direction. Valid values are "ltr" (left-to-right)
and "rtl" (right-to-left).

Per-product customization of force update UI remote url, also used in
testing.

Forces additional Chrome Variation Ids that will be sent in X-Client-Data
header, specified as a 64-bit encoded list of numeric experiment ids. Ids
prefixed with the character "t" will be treated as Trigger Variation Ids.
IMPORTANT: You can use this switch for test purposes (e.g. a manual command
line run or from a unit test), but NOT for production code in the browser, as
the latter is not allowed for privacy reasons (except for the current use by
about:flags code).

Force media player using SurfaceView instead of SurfaceTexture on Android.
Note: This is used by the Cast playback pipeline and must be kept.

Force all WebGPU content to run in WebGPU Compatibility mode.

Override WebRTC IP handling policy to mimic the behavior when WebRTC IP
handling policy is specified in Preferences.

Forcibly enable and select the specified runtime for webxr.
Note that this provides an alternative means of enabling a runtime, and will
also functionally disable all other runtimes.

Displays the What's New experience when the browser is started if it has not
yet been shown for the current milestone (this overrides kNoFirstRun, without
showing the First Run experience).

Overrides the target language for translation and forces translation of all
pages to the new target language.

Specifies the device's form factor. If provided, this flag overrides the
value from the LSB release info. Possible values are: "CHROMEBASE",
"CHROMEBIT", "CHROMEBOOK", "REFERENCE", "CHROMEBOX"

The following three switches match those in fuzztest and are defined
the same way. We know about them in this test suite so that we can
act differently if we're in fuzzing mode.
These appear to be very stable fuzztest flags and it's unlikely that
we'd ever need to detect others in a similar way, but if this proves
to be unstable then we could add an upstream fuzztest API such as
fuzztest::AreWeFuzzing, and use that instead of detecting any flags.

Overrides the gamepad polling interval. Decreasing the interval improves
input latency of buttons and axes but may negatively affect performance due
to more CPU time spent in the input polling thread.

Sets the checkin service endpoint that will be used for performing Google
Cloud Messaging checkins.

Sets the Mobile Connection Server endpoint that will be used for Google
Cloud Messaging.

Sets the registration endpoint that will be used for creating new Google
Cloud Messaging registrations.

Enable HID device access for the GCPW sign-in process.

The name for the command-line switch used to provide the activation time
threshold for the Gemini app. Note that this switch will only be used for
testing purposes.

Embed the document outline into printed PDFs.

Enable the getAccessToken autotest API which creates access tokens using
the internal OAuth client ID.

Include ANGLE's intermediate representation (AST) output in shader
compilation info logs.

List of URL patterns in the glic webview to redirect to an admin blocked
panel, as a space-separated list.

Whether to show web actuation toggle in the Chrome AI settings page.

Automation is intended to be passed in addition to glic-dev. It further
disables functionality to make basic testing easier.

Dev mode for glic only exposed via command line flag.

Overrides the glic guest URL.

Configure preset guest URLs for manual testing. These are saved to local
state prefs and can be selected to override the default glic guest URL
through corresponding entries in chrome://flags.

Whether additional logging is enabled in the glic api host.

Use --glic-open-on-startup=attached or --glic-open-on-startup=detached.

If this flag is set, then the page navigating will not trigger a reload.

List of allowed origins in the glic webview, as a space-separated list.

Disables the GpuMemoryBufferReadbackFromTexture codepath for debugging
purposes.

Specifies an alternate URL to use for speaking to Google. Useful for testing.

Overrides the URL used to fetch the current Google Doodle.
Example: https://www.google.com/async/ddljson
Testing? Try:
https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android0.json
https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android1.json
https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android2.json
https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android3.json
https://www.gstatic.com/chrome/ntp/doodle_test/ddljson_android4.json

Select a different set of GPU blocklist entries with the specified
test_group ID.

Passes the active graphics device id from browser process to info collection
GPU process.

Allows explicitly specifying the shader disk cache size for embedded devices.
Default value is 6MB. On Android, 2MB is default and 128KB for low-end
devices.

Enable an extra set of GPU driver bug list entries with the specified
test_group ID. Note the default test group (group 0) is still active.

Passes the active graphics driver version from browser process to info
collection GPU process.

Extra command line options for launching the GPU process (normally used
for debugging). Use like renderer-cmd-prefix.

Inform Chrome that a GPU context will not be lost in power saving mode,
screen saving mode, etc.  Note that this flag does not ensure that a GPU
context will never be lost in any situations, say, a GPU reset.

Passes encoded GpuPreferences to GPU process.

Makes this process a GPU sub-process.

Sets the maximum size of the in-memory gpu program cache, in kb

The number of multisample antialiasing samples for GPU rasterization.
Requires MSAA support on GPU to have an effect. 0 disables MSAA.

Passes the active graphics revision info from browser process to info
collection GPU process.

Allows shmat() system call in the GPU sandbox.

Makes GPU sandbox failures fatal.

Starts the GPU sandbox before creating a GL context.

Causes the GPU process to display a dialog on launch.

Passes the active graphics sub system id from browser process to info
collection GPU process.

Passes the active graphics vendor id from browser process to info collection
GPU process.

Override value for the GPU watchdog timeout in seconds.

Specifies campaigns to override for testing.

Clear all growth framework Feature Engagement events at session start for
testing.

Specifies the device current time in SecondsSinceUnixEpoch format for
testing.

Specifies the delay time to trigger campaigns for testing.

Path for which to load growth campaigns file for testing (instead of
downloading from Omaha).

Specifies the device registered time in SecondsSinceUnixEpoch format for
testing.

Large wallpaper to use in guest mode (as path to trusted, non-user-writable
JPEG file).

Small wallpaper to use in guest mode (as path to trusted, non-user-writable
JPEG file).

If set, the system is a Chromebook with a "standard Chrome OS keyboard",
which generally means one with a Search key in the standard Caps Lock
location above the Left Shift key. It should be unset for Chromebooks with
both Search and Caps Lock keys (e.g. stout) and for devices like Chromeboxes
that only use external keyboards.

Whether this device that has hps.

Whether this device has an internal stylus.

If set, the system is a Chromebook with a number pad as part of its internal
keyboard.

Run in headless mode, i.e., without a UI or display server dependencies.

Flag to show the help message.

Enables Hermes fake behavior. By default, no carrier profiles are setup.
If a value of "on" is passed for this switch, then hermes fakes are
initialized with a single installed carrier profile. Fake cellular service
corresponding to carrier profiles are also setup in Shill.

Sets how long a wrongly hidden network must have existed in order to be
considered for removal. The interval should be provided in days, should
follow the format "--hidden-network-migration-age=#", and should be >= 0.

Controls how often the HiddenNetworkHandler class checks for wrongly hidden
networks. The interval should be provided in seconds, should follow the
format "--hidden-network-migration-interval=#", and should be >= 1.

Does not show the crash restore bubble when the browser is started during the
system startup phase in ChromeOS, if the ChromeOS full restore feature is
enabled, because the ChromeOS full restore notification is shown for the user
to select restore or not.

Prevents creating scrollbars for web content. Useful for taking consistent
screenshots.

Highlight the contents (including web contents) of all WebViews with a yellow
tint. This is useful for identifying WebViews in an Android application.

Defines user homedir. This defaults to primary user homedir.

Specifies which page will be displayed in newly-opened tabs. We need this
for testing purposes so that the UI tests don't depend on what comes up for
http://google.com.

The integer value of a file descriptor inherited by the mojo_proxy process
when launched by its host. This descriptor references a Unix socket which is
connected to the host process which launched this proxy to sit between the
host and some legacy client application.
Required.

These mappings only apply to the host resolver.

Deprecated alias for backwards compatibility, now does the same thing as
--host-resolver-rules which should be used instead.
TODO(crbug.com/40070729): consider removing in some future release.

kEnableHttp2GreaseSettings does not include the word "enable" for
historical reasons.

If set, the "ignore_dev_conf" field in StartArcVmRequest message will
consequently be set such that all development configuration directives in
/usr/local/vms/etc/arcvm_dev.conf will be ignored during ARCVM start.

Ignores autocomplete="off" for Autofill data (profiles + credit cards).

The switch to ignore bad mojo message reports. Only for testing.

A set of public key hashes for which to ignore certificate-related errors.
If the certificate chain presented by the server does not validate, and one
or more certificates have public key hashes that match a key from this list,
the error is ignored.
The switch value must be a comma-separated list of Base64-encoded SHA-256
SPKI Fingerprints (RFC 7469, Section 2.4).
This switch has no effect unless --user-data-dir (as defined by the content
embedder) is also present.

When set, this will ignore the PortPermission passed in the google_util.h
methods and ignore the port numbers. This makes it easier to run tests for
features that use these methods (directly or indirectly) with the
EmbeddedTestServer, which is more representative of production.

Ignores GPU blocklist.

Override the --no-first-run dialog suppression for the search dialog
for testing

If provided with kProfileDirectory, does not create the profile if the
profile directory doesn't exist.

If true, chrome would silently ignore unknown auth factor types
instead of crashing.

If true, profile selection in UserManager will always return active user's
profile.
TODO(nkostlyev): http://crbug.com/364604 - Get rid of this switch after we
turn on multi-profile feature on ChromeOS.

Triggers the import of passwords on startup.

Creates the service broker inside of this process. Only one process should
host the service broker.

Run the GPU process as a thread in the browser process.

Causes the initial browser opened to be in incognito mode. Further browsers
may or may not be in incognito mode; see IncognitoModePrefs.

By default, mojo_proxy assumes its host is a broker. When this flag is given
it instead assumes its host is a non-broker who is offering to share their
broker. The proxy must be configured correctly in this regard or all
connections through it will fail.

Specifies that the main-thread Isolate should initialize in foreground mode.
If not specified, the the Isolate will start in background mode for extension
processes and foreground mode otherwise.

Pre-load the client hint storage. Takes a JSON dict, with each key being an
origin (RFC 6454 Section 6.2) and each value a comma-separated list of client
hint tokens (RFC 8942 Section 3.1, client-hints-infrastructure Section 7.1).
Each origin/token-list entry will be parsed and persisted to the Client Hints
storage as though the token-list had come through an Accept-CH response
header from a navigation from the origin.
The initialization will only apply to non-OffTheRecord profiles, meaning
incognito or guest profiles will not have the storage applied.

Installs an autogenerated theme based on the given RGB value.
The format is "r,g,b", where r, g, b are a numeric values from 0 to 255.

Causes Chrome to initiate an installation flow for the given app.

Causes Chrome to install the unsigned Web Bundle at the given path as a
developer mode Isolated Web App.

Causes Chrome to install a developer mode Isolated Web App whose contents
are hosted at the given HTTP(S) URL.

Decreases delay in uploading installation event logs for integration test.

Marks a renderer as an Instant process.

Specifies manual overrides to the IP endpoint -> IP address space mapping.
This allows running local tests against "public" and "local" IP addresses.
This switch is specified as a comma-separated list of overrides. Each
override is an equals-separated "<endpoint|ip-range>=<address space>" pair.
Grammar, in pseudo-BNF format:
switch := override-list
override-list := override “,” override-list | <nil>
override := (ip-endpoint | ip_range) “=” address-space
address-space := “public” | “private” | “local” | "loopback"
ip-endpoint := ip-address ":" port
ip-address := see net::ParseURLHostnameToAddress() for details
port := integer in the [0-65535] range
ip-range := ip-address "/" bitmask
bitmask := integer in the [0-128] range
Any invalid entries in the comma-separated list are ignored. If the port
specified is 0, all ports for the given ip-address will be overridden.
See also the design doc:
https://docs.google.com/document/d/1-umCGylIOuSG02k9KGDwKayt3bzBXtGwVlCQHHkIcnQ/edit#
And the Web Platform Test RFC #72 behind it:
https://github.com/web-platform-tests/rfcs/blob/master/rfcs/address_space_overrides.md
Note that since the doc and the RFC were written, the address space names
have changed slightly due to Local Network Access (LNA) replacing Private
Network Access (PNA).

Overrides the timeout, in seconds, that a child process waits for a
connection from the browser before killing itself.

Require dedicated processes for a set of origins, specified as a
comma-separated list. For example:
--isolate-origins=https://www.foo.com,https://www.bar.com

Enables experimental Harmony (ECMAScript 6) features.

Specifies the flags passed to JS engine.

Used for testing - keeps browser alive after last browser window closes.

Enable kiosk mode. Please note this is not Chrome OS kiosk mode.

Enable automatically pressing the print button in print preview.

Minimum time the kiosk splash screen will be shown in seconds.

Pass the app id information to the renderer process, to be used for logging.
last-launched-app should be the app that just launched and is spawning the
renderer.

Start Chrome in RMA mode. Launches RMA app automatically.
kRmaNotAllowed switch takes priority over this one.

Time the browser launched the renderer process (in TimeTicks).

The integer value of a file descriptor inherited by the mojo_proxy process
when launched by its host. This descriptor references a Unix socket which is
connected to the legacy client application to be the target of this proxy.
Required.

Allows the loading predictor to do prefetches to local IP addresses. This is
needed for testing as such requests are blocked by default for security.

Enables the lobster feature.

If set, Local Network Access (LNA) permissions policy features will be
default enabled in all frames, rather than requiring explicit delegation.

Overrides the default file name to use for general-purpose logging (does not
affect which events are logged).

Logs GPU control list decisions when enforcing blocklist rules.

Sets the minimum log level. Valid values are from 0 to 3:
INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3.

Log an error whenever the unload timeout for a render frame is exceeded.

Enables Chrome-as-a-login-manager behavior.

Specifies the profile to use once a chromeos user is logged in.
This parameter is ignored if user goes through login screen since user_id
hash defines which profile directory to use.
In case of browser restart within active session this parameter is used
to pass user_id hash for primary user.

Specifies the user which is already logged in.

Use in test to override mahi age and country restriction.

Makes Chrome default browser

Whether in hospitality mode

List of comma-separated URLs to mark as present on the password protection
allowlist. Note this uses the client-side detection allowlist.

List of comma-separated URLs to mark as present on the high-confidence
allowlist.

Command-line flag for caching an artificial blocked enterprise lookup
verdict.

Command-line flag for caching an artificial flagged enterprise lookup
verdict.

Command-line flag for caching an artificial phishing verdict for hash-prefix
real-time lookups.

List of comma-separated URLs to mark as malware for local database checks.

Command-line flag for caching an artificial PhishGuard unsafe verdict.

List of comma-separated URLs to mark as phishing for local database checks.

Command-line flag for caching an artificial phishing verdict for URL
real-time lookups.

List of comma-separated URLs to mark as unwanted software for local database
checks.

Determines the URL to be used when calling the backend.

Allows user to override maximum number of active WebGL contexts per
renderer process.

Sets the maximium decoded image size limitation.

Override the maximum framerate as can be specified in calls to getUserMedia.
This flag expects a value.  Example: --max-gum-fps=17.5

Calibrated max output volume dBa for voice content at 1 meter, if known.

Sets the width and height above which a composited layer will get tiled.

Sets the maximum number of WebMediaPlayers allowed per frame.

Some platforms typically have very little 'free' memory, but plenty is
available in buffers+cached.  For such platforms, configure this amount
as the portion of buffers+cached memory that should be treated as
unavailable.  If this switch is not used, a simple pressure heuristic based
purely on free memory will be used.

Indicates the utility process should run with a message loop type of UI.

Enables the recording of metrics reports but disables reporting. In contrast
to kForceEnableMetricsReporting, this executes all the code that a normal
client would use for reporting, except the report is dropped rather than sent
to the server. This is useful for finding issues in the metrics code during
UI and performance tests.

Override the standard time interval between each metrics report upload for
UMA and UKM. It is useful to set to a short interval for debugging. Unit in
seconds. (The default is 1800 seconds on desktop).

Sets the min tile height for GPU raster.

Enable dynamically changing the channel count in the mixer depending on the
input streams.

Endpoint that the mixer service listens on. This is a path for a UNIX domain
socket (default is /tmp/mixer-service).

TCP port that the mixer service listens on on non-Linux platforms.
(default 12854).

Specify the start threshold frames for audio output when using our mixer.
This is mostly used to override the default value to a larger value, for
platforms that can't handle the default start threshold without running into
audio underruns.

Specify the buffer size for audio output when using our mixer. This is mostly
used to override the default value to a larger value, for platforms that
can't handle an audio buffer so small without running into audio underruns.

Set the default result for MockCertVerifier. This only works in test code.

Overrides the ModelQuality Service API Key for remote requests to be made.

Overrides the model quality service URL.

Forces the process's global Mojo node to be configured as a broker. Only
honored for test runners using MojoTestSuiteBase.

Use a Mojo-based LocalStorage implementation.

Allows setting a different destination ID for connection-monitoring GCM
messages. Useful when running against a non-prod management server.

Allows explicitly specifying MSE audio/video buffer sizes as megabytes.
Default values are 150M for video and 12M for audio.

Mutes audio sent to the audio device so it is not audible during
automated testing.

Requests a native messaging connection be established between the extension
with ID specified by this switch and the native messaging host named by the
kNativeMessagingConnectHost switch.

Requests a native messaging connection be established between the native
messaging host named by this switch and the extension with ID specified by
kNativeMessagingConnectExtension.

If set when kNativeMessagingConnectHost and kNativeMessagingConnectExtension
are specified, is reflected to the native messaging host as a command line
parameter.

Overrides the default validity period for Nearby Share certificates. Value
must be larger than 0.

Overrides the default device ID to provide a stable ID in test environments.
By default we generate a random 10-character string.

Overrides the default number of private certificates generated. Value must be
larger than 0.

Enables verbose logging level for Nearby Share.

Overrides the default URL for Google APIs (https://www.googleapis.com) used
by Nearby Share

Enable net logging from WebView. This captures network activity for debugging
purposes, and stores the files in DevUi.

Sets the granularity of events to capture in the network log. The mode can be
set to one of the following values:
"Default"
"IncludeSensitive"
"Everything"
See the enums of the corresponding name in net_log_capture_mode.h for a
description of their meanings.

Specifies the duration (in seconds) for network logging. When this flag is
provided with a positive integer value X, Chrome will automatically stop
collecting NetLog events after X seconds and flush the log to disk.

Sets the maximum size, in megabytes. The log file can grow to before older
data is overwritten. Do not use this flag if you want an unlimited file size.

List of network interfaces to ignore. Ignored interfaces will not be used
for network connectivity.

Sets the timeout seconds of the network-quiet timers in IdlenessDetector.
Used by embedders who want to change the timeout time in order to run web
contents on various embedded devices and changeable network bandwidths in
different regions. For example, it's useful when using FirstMeaningfulPaint
signal to dismiss a splash screen.

Launches URL in new browser window.

Disables the default browser check. Useful for UI/browser tests where we
want to avoid having the default browser info-bar displayed.

Start the non-sandboxed GPU process for DX12 and Vulkan info collection
immediately after the browser starts. The default is to delay for 120
seconds.

Disables all experiments set on about:flags. Does not disable about:flags
itself. Useful if an experiment makes chrome crash at startup: One can start
chrome with --no-experiments, disable the problematic lab at about:flags and
then restart chrome without this switch again.

Skip First Run tasks as well as not showing additional dialogs, prompts or
bubbles. Suppressing dialogs, prompts, and bubbles is important as this
switch is used by automation (including performance benchmarks) where it's
important only a browser window is shown.
This may not actually be the first run or the What's New page. Its effect can
be partially ignored by adding kForceFirstRun (for FRE), kForceWhatsNew (for
What's New) and/or kIgnoreNoFirstRunForSearchEngineChoiceScreen (for the DSE
choice screen). This does not drop the First Run sentinel and thus doesn't
prevent first run from occurring the next time chrome is launched without
this flag. It also does not update the last What's New milestone, so does not
prevent What's New from occurring the next time chrome is launched without
this flag.

Disables Mojo initialization completely in the process. Only applies to
test child processes. See base::MultiprocessTest.

Do not display header and footer in the printed PDF file.

Don't send hyperlink auditing pings

Don't use a proxy server, always make direct connections. Overrides any
other proxy server flags that are passed.

Disables the sandbox for all process types that are normally sandboxed.
Meant to be used as a browser-level switch for testing purposes only.

Does not automatically open a browser window on startup (used when
launching Chrome for the purpose of hosting background apps).

Disables the unsandboxed zygote.
Note: this flag should not be used on most platforms. It is introduced
because some platforms (e.g. Cast) have very limited memory and binaries
won't be updated when the browser process is running.

Autoplay policy that does not require any user gesture.

Tell WebXr to assume that it does not support any runtimes.

Disables the use of a zygote process for forking child processes. Instead,
child processes will be forked and exec'd directly. Note that --no-sandbox
should also be used together with this flag because the sandbox needs the
zygote to work.

An optional comma-separated list of IDs of apps that can be used to take
notes. If unset, a hardcoded list is used instead.

For client applications who expect Mojo invitation attachments to be assigned
zero-based 64-bit integral values, this specifies the number of in-use
attachments. The names are implicitly sequental integers starting from 0.

Controls the number of threads to use for raster tasks.

Calculate the hash of an MHTML file as it is being saved.
The browser process will write the serialized MHTML contents to a file and
calculate its hash as it is streamed back from the renderer via a Mojo data
pipe.

Enables the on-device model to run validation at startup after a delay. A
text file can be provided used as input for the validation job and an output
file path can be provided to write the response to.

Used to determine if and how on-device handwriting recognition is supported
(e.g. via rootfs or downloadable content).

Disable metrics consent for testing.

Allows the eula url to be overridden for tests.

Indicates that the first user run flow (sequence of OOBE screens after the
first user login) should show tablet mode centric screens, even if the device
is not in tablet mode.

Indicates that OOBE should be scaled for big displays similar to how Meets
app scales UI.
TODO(crbug.com/1205364): Remove after adding new scheme.

When present, prints the time it takes for OOBE's frontend to load.
See go/oobe-frontend-trace-timings for details.

Specifies directory for screenshots taken with OOBE UI Debugger.

Shows a11y button on the marketing opt in without visiting gesture navigation
screen.

Skips OOBE network setup even if there is no internet connection.

Skips new user check in the personalized recommend apps screen for testing.

Skips all other OOBE pages after user login.

Returns true if we should skip split modifier check on the split modifier
info screen.

Skip to login screen.

Interval at which we check for total time on OOBE.

Allows the timezone to be overridden on the marketing opt-in screen.

Trigger sync engine initialization timeout in OOBE for testing.

Overrides scheduling and time delays for fetching hints and causes a hints
fetch immediately on start up using the provided comma separate lists of
hosts.

Overrides the hints fetch scheduling and delay, causing a hints fetch
immediately on start up using the TopHostProvider. This is meant for testing.

Enables overriding Google API key configuration check for permissions.

Allows sending an language code to the backend.

Adds header to indicate to return debug logging data from the model execution
service via response header.

Triggers validation of the server-side AI model execution. Used for
integration testing.

Disables the fetching of models and overrides the file path and metadata to
be used for the session to use what's passed via command-line instead of what
is already stored.
We expect that the string be a comma-separated string of model overrides with
each model override be: OPTIMIZATION_TARGET_STRING:file_path or
OPTIMIZATION_TARGET_STRING:file_path:base64_encoded_any_proto_model_metadata.
It is possible this only works on Desktop since file paths are less easily
accessible on Android, but may work.

Triggers validation of the model. Used for manual testing.

Overrides the on-device model adaptation file paths for on-device model
execution.

Overrides the on-device model file paths for on-device model execution.

Overrides the Optimization Guide Service API Key for remote requests to be
made.

Overrides the Optimization Guide Service URL that the HintsFetcher will
request remote hints from.

Overrides the Optimization Guide Service URL that the PredictionModelFetcher
will request remote models and host features from.

Overrides the Optimization Guide model execution URL.

Overrides the Hints Protobuf that would come from the component updater. If
the value of this switch is invalid, regular hint processing is used.
The value of this switch should be a base64 encoding of a binary
Configuration message, found in optimization_guide's hints.proto. Providing a
valid value to this switch causes Chrome startup to block on hints parsing.

Contains a list of feature names for which origin trial experiments should
be disabled. Names should be separated by "|" characters.

Contains a list of token signatures for which origin trial experiments should
be disabled. Tokens should be separated by "|" characters.

Comma-separated list of keys which will override the default public keys for
checking origin trial tokens.

Overrides the default enabled library CDM interface version(s) with the one
specified with this switch, which will be the only version enabled. For
example, on a build where CDM 8, CDM 9 and CDM 10 are all supported
(implemented), but only CDM 8 and CDM 9 are enabled by default:
--override-enabled-cdm-interface-version=8 : Only CDM 8 is enabled
--override-enabled-cdm-interface-version=9 : Only CDM 9 is enabled
--override-enabled-cdm-interface-version=10 : Only CDM 10 is enabled
--override-enabled-cdm-interface-version=11 : No CDM interface is enabled
This can be used for local testing and debugging. It can also be used to
enable an experimental CDM interface (which is always disabled by default)
for testing while it's still in development.

Overrides hardware secure codecs support for testing. If specified, real
platform hardware secure codecs check will be skipped. Valid codecs are:
- video: "vp8", "vp9", "avc1", "hevc", "dolbyvision", "av01"
- video that does not support clear lead: <video>-no-clearlead, where
<video> is from the list above.
- audio: "mp4a", "vorbis"
Codecs are separated by comma. For example:
--override-hardware-secure-codecs-for-testing=vp8,vp9-no-clearlead,vorbis
--override-hardware-secure-codecs-for-testing=avc1,mp4a
CENC encryption scheme is assumed to be supported for the specified codecs.
If no valid codecs specified, no hardware secure codecs are supported. This
can be used to disable hardware secure codecs support:
--override-hardware-secure-codecs-for-testing

Overrides the language detection result determined based on the page
contents.

Override the URL to which metrics logs are sent for debugging.

Forces the use of software GL instead of hardware gpu for tests.

If set, the overrrides the overscan settings on all displays.

If set, the overview button will be visible.

Specify location for image dumps.

Specifies ozone screen size.

Specify ozone platform implementation to use.

Packages an extension to a .crx installable file from a given directory.

Optional PEM private key to use in signing packaged .crx.

If enabled, page content annotations requests will not wait for FCP.

Enables the specific annotation type to run validation at startup after a
delay. A comma separated list of inputs can be given as a value which will be
used as input for the validation job.

Writes the output of page content annotation validations to the given file.

Renderer process that runs the non-PPAPI PDF plugin.

Show the mean value of histograms that native performance tests
are monitoring. Note that this is only applicable for PerformanceTest
subclasses.

Repeat internable data for each TraceEvent in the perfetto proto format.

Set policy value by command line.

Replace the original verification_key with the one provided by the command
line flag. Can be used only for unit tests or browser tests.

Causes the browser process to crash very early in startup, just before
crashpad (or breakpad) is initialized.

Used to mock the response received from the Web Permission Prediction
Service. Used for testing.

A directory where Chrome looks for json files describing default/preinstalled
web apps. This overrides any default directory to load preinstalled web apps
from.

Prevent kiosk autolaunch for testing.

previous-app should be the app that was running when last-launched-app
started.

Save a PDF file of the loaded page.

Sets the channel from which the PPD files are loaded.

Sets Privacy Policy hostname url for testing.

Causes the Private Aggregation API to run without reporting delays.

Use IPv6 only for privet HTTP.

Enable the "Process Per Site" process model for all domains. This mode
consolidates same-site pages so that they share a single process.
More details here:
- https://www.chromium.org/developers/design-documents/process-models
- The class comment in site_instance.h, listing the supported process models.
IMPORTANT: This isn't to be confused with --site-per-process (which is about
isolation, not consolidation). You probably want the other one.

Runs each set of script-connected tabs (i.e., a BrowsingInstance) in its own
renderer process.  We default to using a renderer process for each
site instance (i.e., group of pages from the same registered domain with
script connections to each other).
TODO(creis): This flag is currently a no-op.  We should refactor it to avoid
"unnecessary" process swaps for cross-site navigations but still swap when
needed for security (e.g., isolated origins).

Switch to specify product name used when crash_uploader uploads crash report.
Default to "Eureka" if not specified.

Outputs the product version information and quit. Used as an internal api to
detect the installed version of Chrome on Linux.

Selects directory of profile to associate with the first browser launched.

Like kProfileDirectory, but selects the profile by email address. If the
email is not found in any existing profile, this switch has no effect. If
both kProfileDirectory and kProfileEmail are specified, kProfileDirectory
takes priority.

If set to "true", the profile requires policy during restart (policy load
must succeed, otherwise session restart should fail).

Causes Protected Audiences Bidding and Auction API to supply the provided
debugging key to the trusted auction server. This tells the server that it
okay to log information about this user's auction to help with debugging.

Forces proxy auto-detection.

Specifies a list of hosts for whom we bypass proxy settings and use direct
connections. Ignored if --proxy-auto-detect or --no-proxy-server are also
specified. This is a comma-separated list of bypass rules. See:
"net/proxy_resolution/proxy_host_matching_rules.h" for the format of these
rules.

Uses the pac script at the given URL

Uses a specified proxy server, overrides system settings.

Handle to shared memory containing the pseudonymization salt, passed to
child processes at launch. See https://crbug.com/40850085.

SAML assertion consumer URL, used to detect when Gaia-less SAML flows end
(e.g. for SAML managed guest sessions)
TODO(crbug.com/40636049): Remove when URL is sent by DMServer.

Enables or disables pull-to-refresh gesture in response to vertical
overscroll.
Set the value to '0' to disable the feature, set to '1' to enable it for both
touchpad and touchscreen, and set to '2' to enable it only for touchscreen.
Defaults to disabled.

Purges the store containing prediction medels and host model features on
startup, so that it's guaranteed to be using fresh data.

Purges the store containing fetched and component hints on startup, so that
it's guaranteed to be using fresh data.

Adds fake Bluetooth devices to the quick settings menu for UI testing.

Adds fake Cast devices to the quick settings menu for UI testing.

Forces the quick settings "locale" FeatureTile to show. Normally it only
shows in demo mode, which does not work in the emulator.

Specifies the URL at which to upload real-time reports.

Makes pixel tests overwrite their reference if the output and reference
don't match.

Reduce the accept-language for HTTP header and JS navigator.languages, and
only most preferred language: https://github.com/Tanych/accept-language.

Reduce the accept-language for HTTP header, and only send most preferred
language in the request header: https://github.com/Tanych/accept-language.

Reduce the minor version number in the User-Agent string. This flag
implements phase 4 of User-Agent reduction:
https://blog.chromium.org/2021/09/user-agent-reduction-origin-trial-and-dates.html.

Forces immediate platform policy refresh (not cloud policy) when Chrome is
already running. The switch prevents a new browser window from opening and
only triggers the policy refresh. Useful for testing and automation to avoid
waiting for the next scheduled refresh interval. No-op if Chrome is not
already running.

Makes Chrome register the maximum dark suspend delay possible on Chrome OS
i.e. give the device the maximum amount of time to do its work in dark
resume as is allowed by the power manager.

The name of the per-model directory which contains per-region
subdirectories with regulatory label files for this model.
The per-model directories (if there are any) are located under
"/usr/share/chromeos-assets/regulatory_labels/".

Enables web socket connections from the specified origins only. '*' allows
any origin.

Enables remote debug over stdio pipes [in=3, out=4] or over the remote pipes
specified in the 'remote-debugging-io-pipes' switch.
Optionally, specifies the format for the protocol messages, can be either
"JSON" (the default) or "CBOR".

Enables remote debug over HTTP on the specified port.

Provides a list of addresses to discover DevTools remote debugging targets.
The format is <host>:<port>,...,<host>:port.

Testing delay for reboot command. Useful for tast tests.

Allows explicitly picking a DRM render node to create gbm_device for
rendering.

Causes the process to run as renderer instead of as browser.

The contents of this flag are prepended to the renderer command line.
Useful values might be "valgrind" or "xterm -e gdb --args".

Overrides the default/calculated limit to the number of renderer processes.
Very high values for this setting can lead to high memory/resource usage
or instability.

Causes the renderer process to display a dialog on launch. Passing this flag
also adds sandbox::policy::kNoSandbox on Windows non-official builds, since
that's needed to show a dialog.

Parameters for kUIShowCompositedLayerBorders.

Indicates that all corrupted extensions should be repaired if they are
are enabled by policy. This is mainly used after a user data downgrade.

Force to report VP9 as an unsupported MIME type.

Only connect to WLAN interfaces.

Forces a reset of the one-time-randomized FieldTrials on this client, also
known as the Chrome Variations state.

Indicates that Chrome was restarted (e.g., after a flag change). This is used
to ignore the launch when recording the Launch.Mode2 metric.

Indicates the last session should be restored on startup. This overrides the
preferences value. Note that this does not force automatic session restore
following a crash, so as to prevent a crash loop. This switch is used to
implement support for OS-specific "continue where you left off" functionality
on OS X and Windows.

Indicates that reven UI strings and features should be shown.

The rlz ping delay (in seconds) that overwrites the default value.

Start Chrome without opening RMA or checking the current RMA state.

Effectively disables pipelining of compositor frame production stages by
waiting for each stage to finish before completing a frame.

Manual tests only run when --run-manual is specified. This allows writing
tests that don't run automatically but are still in the same test binary.
This is useful so that a team that wants to run a few tests doesn't have to
add a new binary that must be compiled on all builds.

If present, indicates that the client-side detection allowlist check should
be skipped (it is treated as no match).

If the switch is present, any high-confidence allowlist check will return
that it does not match the allowlist.

The switch added by session_manager daemon when chrome crashes 3 times or
more within the first 60 seconds on start.
See BrowserJob::ExportArgv in platform2/login_manager/browser_job.cc.

Enable Safe Browsing Enhanced Protection.

List of comma-separated sha256 hashes of executable files which the
download-protection service should treat as "dangerous."  For a file to
show a warning, it also must be considered a dangerous filetype and not
be allowlisted otherwise (by signature or URL) and must be on a supported
OS. Hashes are in hex. This is used for manual testing when looking
for ways to by-pass download protection.

Indicates that the URL in the command line should open in the active tab
instead of a new tab. In case of multiple URLS given as arguments, the
first one will replace the active tab.

Password change url for SAML users.
TODO(crbug.com/40618074): Remove when the bug is fixed.

Causes the process to run as a sandbox IPC subprocess.

Enables saving webpages as MHTML (Webpage, Single) by default, instead of
saving as HTML with a directory of sub-resources. (Webpage, Complete).
See http://crbug.com/40179885 for how to remove this switch.

Enable the keyboard lock trigger of Scam Detection via command line for
easier testing.

Testing grace period for DeviceScheduledReboot policy. Useful for tast tests.
See ShouldSkipRebootDueToGracePeriod in scheduled_task_util.h.

Selects the scheduler configuration specified in the parameter.

Specifies what the default scheduler configuration value is if the user does
not set one.

Specifies the initial screen configuration, or state of all displays, for
FakeDisplayDelegate, see class for format details.

Headless screen info in the format: {0,0 800x600}{800,0 600x800}.
See //components/headless/screen_info/README.md for more details.

Save a screenshot of the loaded page.

Use a static URL for the logo of the default search engine.
Example: https://www.google.com/branding/logo.png

Specifies the layout mode and offsets for the secondary display for
testing. The format is "<t|r|b|l>,<offset>" where t=TOP, r=RIGHT,
b=BOTTOM and L=LEFT. For example, 'r,-100' means the secondary display
is positioned on the right with -100 offset. (above than primary)

Specifies the base URL to contact the secure connect Api.

Indicates the name of the service to run. Useful for debugging, or if a
service executable is built to support being run as a number of potential
different services.

The name of the |mojo::PendingReceiver<service_manager::mojom::Service>|
message pipe handle that is attached to the incoming Mojo invitation received
by the service.

Type of sandbox to apply to the process running the service, one of the
values in the next block.

Describes the file descriptors passed to a child process in the following
list format:
<file_id>:<descriptor_id>,<file_id>:<descriptor_id>,...
where <file_id> is an ID string from the manifest of the service being
launched and <descriptor_id> is the numeric identifier of the descriptor for
the child process can use to retrieve the file descriptor from the
global descriptor table.

New modular design for the shelf with apps separated into a hotseat UI and
smaller shelf in clamshell mode.

Overrides Shill stub behavior. By default, ethernet, wifi and vpn are
enabled, and transitions occur instantaneously. Multiple options can be
comma separated (no spaces). Note: all options are in the format 'foo=x'.
Values are case sensitive and based on Shill names in service_constants.h.
See FakeShillManagerClient::SetInitialNetworkState for implementation.
Examples:
'clear=1' - Clears all default configurations
'wifi=on' - A wifi network is initially connected ('1' also works)
'wifi=off' - Wifi networks are all initially disconnected ('0' also works)
'wifi=disabled' - Wifi is initially disabled
'wifi=none' - Wifi is unavailable
'wifi=portal' - Wifi connection will be in Portal state
'cellular=1' - Cellular is initially connected
'cellular=LTE' - Cellular is initially connected, technology is LTE
'interactive=3' - Interactive mode, connect/scan/etc requests take 3 secs

Sets the Reporting API delay to under a second to allow much quicker reports.

Adds a DebugBorderDrawQuad to the top of the root RenderPass showing the
damage rect after surface aggregation. Note that when enabled this feature
sets the entire output rect as damaged after adding the quad to highlight the
real damage rect, which could hide damage rect problems.

Annotates forms and fields with Autofill signatures.

Annotates forms with Autofill field type predictions.

Renders a border around compositor layers to help debug and study
layer compositing.

Visibly render a border around paint rects in the web page to help debug
and study painting behavior.  Unlike "show-paint-rects", this only visualizes
new contentful paints for each element (e.g. for LCP).

Show debug borders for DC layers - red for overlays and blue for underlays.
The debug borders are offset from the layer rect by a few pixels for clarity.

Draws a heads-up-display showing Frames Per Second as well as GPU memory
usage. If you also use --enable-logging=stderr --vmodule="head*=1" then FPS
will also be output to the console log.

Renders a border that represents the bounding box for the layer's animation.

Visibly render a border around layout shift rects in the web page to help
debug and study layout shifts.

If true, the developer tool overlay will be shown for the login/lock screen.
This makes it easier to test layout logic.

Enables OOBE UI Debugger for ease of navigation between screens during manual
testing. Limited to ChromeOS-on-linux and test images only.

Enables the QuickStart debugger in OOBE which mimics an Android phone.

Visibly render a border around paint rects in the web page to help debug
and study painting behavior.

Show rects in the HUD around layers whose properties have changed.

Show rects in the HUD around the screen-space transformed bounds of every
layer.

Show rects in the HUD around damage as it is recorded into each render
surface.

Draws a circle at each touch point, similar to the Android OS developer
option "Show taps".

Does not show an infobar when an extension attaches to a page using
chrome.debugger page. Required to attach to extension background pages.

Causes Chrome to launch without opening any windows by default. Useful if
one wishes to use Chrome as an ash server.

Sets the BrowsingDataLifetime policy to a very short value (shorter than
normally possible) for testing purposes.

Simulates a critical update being available.

Sets the IdleTimeout policy to a very short value (shorter than normally
possible) for testing purposes.

Simulates that current version is outdated.

Simulates that current version is outdated and auto-update is off.

Simulates a GoogleUpdateErrorCode error by the update check.
Must be supplied with |kSimulateUpdateHresult| switch.

Simulates a specific HRESULT error code returned by the update check.
If the switch value is not specified (as hex) then it defaults to E_FAIL.

Simulates an update being available.

Runs the renderer and plugins in the same process as the browser

Flag to run all tests and the launcher in a single process. Useful for
debugging a specific test in a debugger.

Enforces a one-site-per-process security policy:
* Each renderer process, for its whole lifetime, is dedicated to rendering
pages for just one site.
* Thus, pages from different sites are never in the same process.
* A renderer process's access rights are restricted based on its site.
* All cross-site navigations force process swaps.
* <iframe>s are rendered out-of-process whenever the src= is cross-site.
More details here:
- https://www.chromium.org/developers/design-documents/site-isolation
- https://www.chromium.org/developers/design-documents/process-models
- The class comment in site_instance.h, listing the supported process models.
IMPORTANT: this isn't to be confused with --process-per-site (which is about
process consolidation, not isolation). You probably want this one.

Specifies the max number of bytes that should be used by the skia font cache.
If the cache needs to allocate more, skia will purge previous entries.

Specify which Dawn backend to use for Skia Graphite.

Specifies the max number of bytes that should be used by the skia resource
cache. The previous entries are purged from the cache when the memory useage
exceeds this limit.

Disables online sign-in enforcement in tast tests.

Skip multidevice setup screen during tast tests.

Used to skip the threshold duration that the reorder nudge has to show before
the nudge is considered as shown.

Re-rasters everything multiple times to simulate a much slower machine.
Give a scale factor to cause raster to take that many times longer to
complete, such as --slow-down-raster-scale-factor=25.

Sends test messages on first call to RequestUpdate (stub only).

Causes SSL key material to be logged to the specified file for debugging
purposes. See
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
for the format.

Specifies the maximum SSL/TLS version ("tls1.2" or "tls1.3").

Specifies the minimum SSL/TLS version ("tls1.2" or "tls1.3").

If true, the time dependent views (such as the time view) show with the
predefined fixed time.

Specifies if the browser should start in fullscreen mode, like if the user
had pressed F11 right after startup.

Starts the browser maximized, regardless of any previous settings.

Starts the stack sampling profiler in the child process.

Interval, in minutes, used for storage pressure notification throttling.
Useful for developers testing applications that might use non-trivial
amounts of disk space.

Forces Heap Profiling on for a subprocess. The browser will add this when
the subprocess should be profiled.

If set, the device will be forced to stay in clamshell UI mode but screen
auto rotation will be supported. E.g, chromebase device Dooly.

Hides all Message Center notification popups (toasts). Used for testing.

Suppresses GL_DEBUG_TYPE_PERFORMANCE log messages for web tests that can get
sent to the JS console and cause unnecessary test failures due test output
log expectation comparisons.

System info file path. Default is an empty string, which
means that dummy info will be used.

This flag sets the checkboxes for sharing system audio during window or
screen capture to on by default. It is primarily intended to be used for
tests.

Used by FakeDebugDaemonClient to specify that the system is running in dev
mode when running in a Linux environment. The dev mode probing is done by
session manager.

The number of pixels from the very top or bottom of the screen to consider as
a valid origin for the top or bottom swipe gesture. Overrides the default
value in cast_system_gesture_handler.cc.

The number of pixels from the very left or right of the screen to consider as
a valid origin for the left or right swipe gesture.  Overrides the default
value in cast_system_gesture_handler.cc.

Frequency in Milliseconds for system log uploads. Should only be used for
testing purposes.

This flag sets the checkboxes for sharing audio during tab capture to off
by default. It is primarily intended to be used for tests.

Allows web tests to specify the target device scale for the test cases.

Specifies directory for the Telemetry System Web Extension.

Enables testing for encryption migration UI.

Flag used for Linux tests: for desktop GL bindings, try to load this GL
library first, but fall back to regular library if loading fails.

Maximum number of tests to run in a single batch.

Sets defaults desirable for the continuous integration bots, e.g. parallel
test execution and test retries.

Makes it possible to debug the launcher itself. By default the launcher
automatically switches to single process mode when it detects presence
of debugger.

List of paths to files (separated by ';') containing test filters (one
pattern per line).

Force running all requested tests and retries even if too many test errors
occur.

Whether the test launcher should launch in "interactive mode", which disables
timeouts (and may have other effects for specific test types).

Number of parallel test launcher jobs.

Path to list of compiled in tests.

Path to test results file in our custom test launcher format.

Maximum output bytes allowed from a single test. Exceeding this limit
results in truncating the output and failing the test.

Causes the test launcher to print information about leaked files and/or
directories in child process's temporary directories.

Flag controlling when test stdio is displayed as part of the launcher's
standard output.

Print timestamps in test launcher. This is helpful for debugging test
slowness. Currently it prints out the following log:
* The time at the end of each test.
* The time while waiting for a test to run.
Using this flag helps you answer questions like "how long did it take
to run the first 10000 tests".
Please only keep this flag on builders temporarily because those logs
are a bit spammy.

Print a writable path and exit (for internal use).

Indicate how many retries are left. Tests in general should not pass in this
flag. This flag is used for launcher to pass retries-left information
to the runner process.

These two flags has the same effect, but don't use them at the same time.
And isolated-script-test-launcher-retry-limit is preferred in the future.
Maximum number of times to retry a test after failure.

Index of the test shard to run, starting from 0 (first shard) to total shards
minus one (last shard).

Path to test results file with all the info from the test launcher.

Limit of test part results in the output. Default limit is 10.
Negative value will completely disable limit.

Time (in milliseconds) that the tests should wait before timing out.

Total number of shards. Must be the same for all shards.

Path where to save a trace of test launcher's execution.

Custom delay for memory log. This should be used only for testing purpose.

Passes the name of the current running automated test to Chrome.

TODO(phajdan.jr): Clean up the switch names.

Type of the current test harness ("browser" or "ui" or "gpu").

Enables the wallpaper picker to fetch images from the test server.

Tells the Chromebook to scan for a tethering host even if there is already a
wired connection. This allows end-to-end tests to be deployed over ethernet
without that connection preventing scans and thereby blocking the testing of
cases with no preexisting connection. Should be used only for testing.

Overrides Tether with stub service. Provide integer arguments for the number
of fake networks desired, e.g. 'tether-stub=2'.

Overrides the Doodle URL to use for third-party search engines.
Testing? Try:
https://www.gstatic.com/chrome/ntp/doodle_test/third_party_simple.json
https://www.gstatic.com/chrome/ntp/doodle_test/third_party_animated.json

Used for overriding the required user activity time before running the
onboarding survey.

Accepts a number representing the time-ticks value at the Unix epoch.
Since different processes can produce a different value for this due to
system clock changes, this allows synchronizing them to a single value.

Issues a stop after the specified number of milliseconds.  This cancels all
navigation and causes the DOMContentLoaded event to fire.

Modulates the debug compositor tint color so that damage and page flip
updates are made clearly visible. This feature was useful in determining the
root cause of https://b.corp.google.com/issues/183260320 . The tinting flag
"tint-composited-content" must also be enabled for this flag to used.

Tint SwapChainPresenter with the following colors:
- Decode swap chain: blue
- VP blit: magenta
- VP blit w/ staging texture: orange
- MF proxy surface: green
This is similar to HKLM\Software\Microsoft\Windows\DWM OverlayTestMode=1
in DWM, but to help understand SwapChainPresenter state.

TLS 1.2 mode for |kSSLVersionMax| and |kSSLVersionMin| switches.

TLS 1.3 mode for |kSSLVersionMax| and |kSSLVersionMin| switches.

Indicates that this RenderProcess is hosting a Top Chrome WebUI.

Percentage of the browser controls need to be hidden before they will auto
hide.

Percentage of the browser controls need to be shown before they will auto
show.

Enable support for touch event feature detection.

Controls how text selection granularity changes when touch text selection
handles are dragged. Should be "character" or "direction". If not specified,
the platform default is used.

Overrides touch slop distance for gesture detection. The touch slop distance
is the maximum distance from the starting point of a touch sequence that a
gesture can travel before it can no longer be considered a tap. Scroll
gestures can only begin after this distance has been travelled. The switch
value is a floating point number that is interpreted as a distance in pixels.

Chromebases' touchscreens can be used to wake from suspend, unlike the
touchscreens on other Chrome OS devices. If set, the touchscreen is kept
enabled while the screen is off so that it can be used to turn the screen
back on after it has been turned off for inactivity but before the system has
suspended.

Enables TPM selection in runtime.

Handle to the shared memory segment a child process should use to transmit
tracing data back to the tracing service. This flag allows tracing to be
recorded before sandbox setup.

Enables startup tracing by passing a file path containing the chrome Json
tracing config as an argument. This flag will be ignored if --trace-startup
is provided.

Causes TRACE_EVENT flags to be recorded from startup, passing a SMB
handle containing the serialized perfetto config. This flag will be
ignored if --trace-startup is provided.

Enables startup tracing by passing a file path containing the perfetto config
as an argument. The config is a serialized or base64 encoded proto
perfetto.protos.TraceConfig defined in
third_party/perfetto/protos/perfetto/config/trace_config.proto. This flag
will be ignored if --trace-startup is provided.

Child process track uuid used by perfetto; this is chosen by the browser
process and sent to child processes to get predictable track uuid.

Configures the size of the shared memory buffer used for tracing. Value is
provided in kB. Defaults to 4096. Should be a multiple of the SMB page size
(currently 32kB on Desktop or 4kB on Android).

Causes TRACE_EVENT flags to be recorded from startup. Optionally, can
specify the specific trace categories to include (e.g.
--trace-startup=base,net) otherwise, all events are recorded. Setting this
flag results in the first call to BeginTracing() to receive all trace events
since startup.
Historically, --trace-startup was used for browser startup profiling and
--enable-tracing was used for browsertest tracing. Now they are share the
same implementation, but both are still supported to avoid disrupting
existing workflows. The only difference between them is the default duration
(5 seconds for trace-startup, unlimited for enable-tracing). If both are
specified, 'trace-startup' takes precedence.
In Chrome, you may find --trace-startup-file and
--trace-startup-duration to control the auto-saving of the trace (not
supported in the base-only TraceLog component).

Sets the time in seconds until startup tracing ends. If omitted:
- if --trace-startup is specified, a default of 5 seconds is used.
- if --enable-tracing is specified, tracing lasts until the browser is
closed. Has no effect otherwise.

If supplied, sets the file which startup tracing will be stored into, if
omitted the default will be used "chrometrace.log" in the current directory.
Has no effect unless --trace-startup is also supplied.
Example: --trace-startup --trace-startup-file=/tmp/trace_event.log
As a special case, can be set to 'none' - this disables automatically saving
the result to a file and the first manually recorded trace will then receive
all events since startup.

Sets the output format for the trace, valid values are "json" and "proto".
If not set, the current default is "proto".
"proto", unlike json, supports writing the trace into the output file
incrementally and is more likely to retain more data if the browser process
unexpectedly terminates.
Ignored if "trace-startup-owner" is not "controller".

Specifies the coordinator of the startup tracing session. If the legacy
tracing backend is used instead of perfetto, providing this flag is not
necessary. Valid values: 'controller', 'devtools', or 'system'. Defaults to
'controller'.
If 'controller' is specified, the session is controlled and stopped via the
TracingController (e.g. to implement the timeout).
If 'devtools' is specified, the startup tracing session will be owned by
DevTools and thus can be controlled (i.e. stopped) via the DevTools Tracing
domain on the first session connected to the browser endpoint.
If 'system' is specified, the system Perfetto service should already be
tracing on a supported platform (currently only Android). Session is stopped
through the normal methods for stopping system traces.

If supplied, sets the tracing record mode and options; otherwise, the default
"record-until-full" mode will be used.

Overrides the URL from which the translate ranker model is downloaded.

Overrides the default server used for Google Translate.

Overrides security-origin with which Translate runs in an isolated world.

Value indicating whether flag from command line switch is true.

Identifies a list of download sources as trusted, but only if proper group
policy is set.

Specifies the TalkToChrome bundle URL.

The value of this switch determines whether the process is started as a
renderer or plugin host.  If it's empty, it's the browser.

Overrides the URL of the server that UKM reports are uploaded to. This can
only be used in debug builds.

Overrides the URL of the server that UMA reports are uploaded to when the
connection to the default secure URL fails (see |kUmaServerUrl|). This can
only be used in debug builds.

Overrides the URL of the server that UMA reports are uploaded to. This can
only be used in debug builds.

Shows all Bluetooth devices in UI (System Tray/Settings Page.)

Overrides per-origin quota settings to unlimited storage for any
apps/origins.  This should be used only for testing purpose.

For automated testing of protected content, this switch allows specific
domains (e.g. example.com) to always allow the permission to share the
protected media identifier. In this context, domain does not include the
port number. User's content settings will not be affected by enabling this
switch.
Reference: https://crbug.com/41317087
Example:
--unsafely-allow-protected-media-identifier-for-domain=a.com,b.ca

Disables warnings about self-XSS attacks when pasting into the DevTools
console.

Treat given (insecure) origins as secure origins. Multiple origins can be
supplied as a comma-separated list. For the definition of secure contexts,
see https://w3c.github.io/webappsec-secure-contexts/ and
https://www.w3.org/TR/powerful-features/#is-origin-trustworthy
Example:
--unsafely-treat-insecure-origin-as-secure=http://a.test,http://b.test

Alternate URL to use for ChromeEnterpriseRealTimeUrlLookupService real-time
lookups.

Initialize the GPU process using the adapter with the specified LUID. This is
only used on Windows, as LUID is a Windows specific structure.

Select which ANGLE backend to use. Options are:
default: Attempts several ANGLE renderers until one successfully
initializes, varying ES support by platform.
d3d9: Legacy D3D9 renderer, ES2 only.
d3d11: D3D11 renderer, ES2 and ES3.
warp: D3D11 renderer using software rasterization, ES2 and ES3.
gl: Desktop GL renderer, ES2 and ES3.
gles: GLES renderer, ES2 and ES3.

Rather than share a common pref config file with cast_service, use a
dedicated browser pref config file. This must be set when cast_browser is
running in a different process from cast_service.

Use the Pass-through command decoder, skipping all validation and state
tracking. Switch lives in ui/gl because it affects the GL binding
initialization on platforms that would otherwise not default to using
EGL bindings.

Replaces the existing codecs supported in peer connection with a single fake
codec entry that create a fake video encoder and decoder.

Use the fake FakeCrasAudioClient to handle system audio controls.

Use fake device for Media Stream to replace actual camera and microphone.
For the list of allowed parameters, see
FakeVideoCaptureDeviceFactory::ParseFakeDevicesConfigFromOptionsString().

Use the fake MahiManager within the Mahi feature. Also always show the Mahi
menu when context menu is shown.

Use a fake device for accelerated decoding of MJPEG. This allows, for
example, testing of the communication to the GPU service without requiring
actual accelerator hardware to be present.

Bypass the digital-identity-credential OS call. Simulate the user
accepting the OS-presented dialog.

Bypass the FedCM account selection dialog. If a value is provided for
this switch, that account ID is selected, otherwise the first account
is chosen.

Bypass the media stream infobar by selecting the default device for media
streams (e.g. WebRTC). Works with --use-fake-device-for-media-stream.
Prefer --auto-accept-camera-and-microphone-capture which does not interact
with screen/tab capture.

Play a .wav file as the microphone. Note that for WebRTC calls we'll treat
the bits as if they came from the microphone, which means you should disable
audio processing (lest your audio file will play back distorted). The input
file is converted to suit Chrome's audio buses if necessary, so most sane
.wav files should work. You can pass either <path> to play the file looping
or <path>%noloop to stop after playing the file to completion.
Must also be used with kDisableAudioInput or kUseFakeDeviceForMediaStream.

Use an .y4m file to play as the webcam. See the comments in
media/capture/video/file_video_capture_device.h for more details.

Uses the 1st display in --ash-host-window-bounds as internal display.
This is for debugging on linux desktop.

Allows the manual specification of a First-Party Set. The format is the same
as that of --use-related-website-set.
DEPRECATED(crbug.com/1486689): This switch is under deprecation due to
renaming "First-Party Set" to "Related Website Set". Please use
kUseRelatedWebsiteSet instead.

Select which implementation of GL the GPU process should use. Options are:
desktop: whatever desktop OpenGL the user has installed (Linux and Mac
default).
egl: whatever EGL / GLES2 the user has installed (Windows default - actually
ANGLE).
swiftshader: The SwiftShader software renderer.

Use hardware gpu, if available, for tests.

Set when Chromium should use a mobile user agent.

Use the MockCertVerifier. This only works in test code.

Flag that stored MyFiles folder inside the user data directory.
$HOME/Downloads is used as MyFiles folder for ease access to local files for
debugging when running on Linux. By setting this flag, <cryptohome>/MyFiles
is used even on Linux.

Try to use a redistributable DirectML.dll. Used for testing WebNN
against newer DirectML release before it is integrated into Windows OS.
Please see more info about DirectML releases at:
https://learn.microsoft.com/en-us/windows/ai/directml/dml-version-history

Allows the manual specification of a Related Website Set. The set should be
provided as a stringified JSON object, whose format matches the format of the
JSON in https://github.com/GoogleChrome/related-website-sets.

Uses the system default printer as the initially selected destination in
print preview, instead of the most recently used destination.

Uses WinHttp to resolve proxies instead of using Chromium's normal proxy
resolution logic. This is only supported in Windows.
TODO(crbug.com/40111093): Only use WinHttp whenever Chrome is
exclusively using system proxy configs.

Enable Vulkan support and select Vulkan implementation, must also have
ENABLE_VULKAN defined. This only initializes Vulkan, the flag
--enable-features=Vulkan must also be used to select Vulkan for compositing
and rasterization.

Use explicit grab when opening popup windows.
See https://crbug.com/1220274

A string used to override the default user agent with a custom one.

Specifies the user data directory, which is where the browser will look for
all of its state.

Autoplay policy to require a user gesture in order to play.

Causes the process to run as a utility subprocess.

The contents of this flag are prepended to the utility process command line.
Useful values might be "valgrind" or "xterm -e gdb --args".

Crash the Utility process early in start-up, for testing.

Causes the utility process to display a dialog on launch.

This switch indicates the type of a utility process. It does not affect the
services offered by the process, but is added to the command line to make
it easier to identify the purpose of the utility process.

Set options to cache V8 data. (none, code, or default)

Examines a .crx for validity and prints the result.

In debug builds, asserts that the stream of input events is valid.

Specifies a custom URL for the server to use as an insecure fallback when
requests to |kVariationsServerURL| fail. Requests to this URL will be
encrypted.

Allows overriding the country used for evaluating variations. This is similar
to the "Override Variations Country" entry on chrome://translate-internals,
but is exposed as a command-line flag to allow testing First Run scenarios.
Additionally, unlike chrome://translate-internals, the value isn't persisted
across sessions.

Specifies the value of the variations seed corpus to use. When unspecified or
unrecognized, the default corpus will be used.

Override the time interval between each variation seed fetches. Unit is in
minutes. The minimum is 1 minute. The default is 30 minutes.

Used to share variations seed version with child processes.

Specifies a custom URL for the server which reports variation data to the
client. Specifying this switch enables the Variations service on
unofficial builds. See variations_service.cc.

Use features defined in the value. Use this flag to reproduce experiments
related issues.
Copy 'Command-line Variations' value from chrome://version page. Save it
to a file and pass it via this flag.
The value is a base64 encoded JSON format produced by
variations::VariationsCommandLine::WriteToString.

Specifies the location of a seed file for Local State's seed to be
populated from. The seed file must be in json format with the keys
|kVariationsCompressedSeed| and |kVariationsSeedSignature|.

Prints version information and quits.

Enables GpuMemoryBuffer-based buffer pool.

Texture target for CHROMIUM_image backed video frame textures.

Set number of threads to use for video decoding.

If set the system waits the specified number of virtual milliseconds before
deeming the page to be ready.  For determinism virtual time does not advance
while there are pending network fetches (i.e no timers will fire). Once all
network fetches have completed, timers fire and if the system runs out of
virtual time is fastforwarded so the next timer fires immediately, until the
specified virtual time budget is exhausted.

Overrides the vsync interval used by the GPU process to refresh the display.

Specifies the heap limit for Vulkan memory.
TODO(crbug.com/40161102): Remove this switch.

Specifies the sync CPU limit for total Vulkan memory.
TODO(crbug.com/40161102): Remove this switch.

Will add kWaitForDebugger to every child processes. If a value is passed, it
will be used as a filter to determine if the child process should have the
kWaitForDebugger flag passed on or not.

On every navigation a message with the renderer's URL will be logged and the
renderer will wait for a debugger to be attached or SIGUSR1 to be sent to
continue execution.

Flag used by WebUI test runners to wait for debugger to be attached.

Use the sandbox Online Wallet service URL (for developer testing).

Specify wayland text-input protocol version.
Defaults to "1" for text-input-v1. Can specify value "3" for experimental
text-input-v3 support.

Used to communicate managed policy for WebAudioBypassOutputBuffering.  This
feature is typically controlled by a RuntimeEnabledFeature, but requires an
enterprise policy override.

Enables specified backend for the Web OTP API.

Enables auto backend selection for Web OTP API.

Enables Sms Verification backend for Web OTP API which requires app hash in
SMS body.

Enables User Consent backend for Web OTP API.

Allows web tests to specify additional web settings for the test cases.

If provided, any webui will be loaded from <flag value>/<handler_name>, where
handler_name is the name passed to MaybeConfigureTestableDataSource, if the
file exists.
For example, if the flag is /tmp/resource_overrides, attempting to load
js/app_main.js from the data source named "help_app/untrusted" will first
attempt to load from /tmp/resource_overrides/help_app/untrusted/js/main.js.

Allows trusted remote desktop clients to make WebAuthn requests on behalf of
other origins. This switch only controls availability of the
remoteDesktopClientOverride extension but doesn't by itself enable any
origin to use it.

Set the antialiasing method used for webgl. (none, explicit, implicit)

Set a default sample count for webgl if msaa is enabled.

Sets the delay (in seconds) between proactive prunings of remote-bound
WebRTC event logs which are pending upload.
All positive values are legal.
All negative values are illegal, and ignored.
If set to 0, the meaning is "no proactive pruning".

WebRTC event logs will only be uploaded if the conditions hold for this
many milliseconds.

Normally, remote-bound WebRTC event logs are uploaded only when no
peer connections are active. With this flag, the upload is never suppressed.

Enable capture and local storage of WebRTC event logs without visiting
chrome://webrtc-internals. This is useful for automated testing. It accepts
the path to which the local logs would be stored. Disabling is not possible
without restarting the browser and relaunching without this flag.

Override WebRTC IP handling policy to mimic the behavior when WebRTC IP
handling policy is specified in Preferences.

Defers GMS calls during startup.

used to disable safebrowsing functionality in webview

Indicate that the this is being used by Android WebView and its draw functor
is using vulkan.

Enables modern SameSite cookie behavior (as opposed to legacy behavior). This
is used for WebView versions prior to when the modern behavior will be
enabled by default. This enables the same-site-by-default-cookies,
cookies-without-SameSite-must-be-secure, and schemeful-same-site features.

Enables FencedFrames. This also enables PrivacySandboxAdsAPIsOverride.

Enables crashes during WebView startup in the Java layer

Enables crashes during WebView startup in the Native layer

Force disables 3rd party cookie for all apps.

Opts in WebView to GMSCore's bindService optimizations

Enables different reductions of the user-agent.

Enables/disables renderer-side native library prefetching.

Enables SafeBrowsing and causes WebView to treat all resources as malicious.
Use care: this will block all resources from loading.

Enables running native startup tasks asynchronously if WebView startup is
asynchronous in addition to preventing multiprocess enabled checks from
starting chromium.

Enables running native startup tasks asynchronously if WebView startup is
asynchronous.
Note: This also enables the same behaviour as WebViewUseStartupTasksLogic and
WebViewUseStartupTasksLogicP2, with minor additions.

Stop browser startup in isMultiProcessEnabled.

Use WebView's context for resource lookups instead of the embedding app's.

Enables using startup tasks logic for webview chromium initialization which
- runs the startup tasks asynchronously if startup is triggered from a
background thread. Otherwise runs startup synchronously.
- caches any chromium startup exception and rethrows it if startup is retried
without a restart.
Note: WebViewUseStartupTasksLogicP2 and kWebViewStartupTasksYieldToNative
also enable the same behaviour as this flag.

Enables phase 2 of using startup tasks logic for webview chromium
initialization which also starts browser process asynchronously, when
starting webview asynchronously.
Note: This also enables the same behaviour as WebViewUseStartupTasksLogic and
WebViewStartupTasksYieldToNative with minor differences.

WebView will log additional debugging information to logcat, such as
variations and commandline state.

Force What's New on Desktop to request from the staging environment.

Specifies which category option was clicked in the Windows Jumplist that
resulted in a browser startup.

Specify the initial window user title: --window-name="My custom title"

Specify the initial window position: --window-position=x,y

Specify the initial window size: --window-size=w,h

Specify the initial window workspace: --window-workspace=id

Uses WinHTTP to fetch and evaluate PAC scripts. Otherwise the default is to
use Chromium's network stack to fetch, and V8 to evaluate.

Do not suppress stack traces in death tests.

If present animations are disabled.

A switch that controls XSLT availability via enterprise policy.

Causes the process to run as a zygote.

The prefix used when starting the zygote process. (i.e. 'gdb --args')

Marks navigations as aborted when the NavigationHandle is destroyed mid
navigation, likely due to a tab closure. This is a kill switch.

Blocks the misspelling suggestion span in composition mode.

Capture Android key event objects to send them to the web contents when the
IME sends composition texts.

Enables the caret browsing a11y feature - can use arrow keys to navigate
through web pages.

DevTools frontend for Android.

Enables media capturing to continue in the background.

Enables media to continue playing in the background.

Fallback to next named service slot if launching a privileged service process
hangs. In practice, this means if GPU launch hanges, then retry it once.

Enables IMEs to insert media content such as images, gifs and stickers.

Enables a blur animation of the current page when navigating away from it.

Enables the physical keyboard autocorrect underline feature.

Warm up a spare renderer after each navigation on Android.

Whether to allow attaching an inner WebContents not owned by the outer
WebContents. This is for prototyping purposes and should not be enabled in
production.

Launches the audio service on the browser startup.

Runs the audio service in a separate process.

Enables the audio-service sandbox. This feature has an effect only when the
kAudioServiceOutOfProcess feature is enabled.