–/prefetch:1^[1] ⊗

/prefetch:#
arguments to use when launching various process types. It has been observed
that when file reads are consistent for 3 process launches with the same
/prefetch:# argument, the Windows prefetcher starts issuing reads in batch at
process launch. Because reads depend on the process type, the prefetcher
wouldn’t be able to observe consistent reads if no /prefetch:# arguments were
used. Note that the browser process has no /prefetch:# argument; as such all
other processes must have one in order to avoid polluting its profile. Note:
# must always be in [1, 8]; otherwise it is ignored by the Windows
prefetcher. ↪

–/prefetch:2^[1] ⊗

No
description ↪

–/prefetch:3^[1] ⊗

No
description ↪

–/prefetch:4^[1] ⊗

No
description ↪

–/prefetch:5^[1] ⊗

/prefetch:#
arguments for the browser process launched in background mode and for the
watcher process. Use profiles 5, 6 and 7 as documented on kPrefetchArgument* in
content_switches.cc. ↪

–/prefetch:6^[1] ⊗

No
description ↪

–/prefetch:8^[1] ⊗

Prefetch
arguments are used by the Windows prefetcher to disambiguate different
execution modes (i.e. process types) of the same executable image so that
different types of processes don’t trample each others’ prefetch behavior.
Legal values are integers in the range [1, 8]. We reserve 8 to mean
“whatever”, and this will ultimately lead to processes with
/prefetch:8 having inconsistent behavior thus disabling prefetch in practice.
TODO(rockot): Make it possible for embedders to override this argument on a
per-service basis. ↪

–10000 ⊗

No description ↪

–100000 ⊗

No
description ↪

–1000000 ⊗

No
description ↪

–3d-display-mode^[1] ⊗

No
description ↪

–50000 ⊗

No
description ↪

–500000 ⊗

No
description ↪

–5000000 ⊗

No
description ↪

–? ⊗

No
description ↪

–accept-resource-provider ⊗

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. ↪

–adaboost ⊗

No
description ↪

–add-gpu-appcontainer-caps^[1] ⊗

Add
additional capabilities to the AppContainer sandbox on the GPU process. ↪

–add-xr-appcontainer-caps^[1] ⊗

Add
additional capabilities to the AppContainer sandbox used for XR
compositing. ↪

–additional-trust-token-key-commitments ⊗

Manually
sets additional Trust 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. ↪

–agc-startup-min-volume ⊗

Override the
default minimum starting volume of the Automatic Gain Control algorithm in
WebRTC used with audio tracks from getUserMedia. The valid range is 12-255.
Values outside that range will be clamped to the lowest or highest valid
value inside WebRTC. TODO(tommi): Remove this switch when crbug.com/555577 is
fixed. ↪

–aggressive ⊗

No
description ↪

–aggressive-cache-discard ⊗

No
description ↪

–aggressive-tab-discard ⊗

No
description ↪

–all ⊗

No
description ↪

–all-renderers ⊗

No
description ↪

–allarticles ⊗

No
description ↪

–allow-cross-origin-auth-prompt ⊗

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

–allow-external-pages ⊗

Allow access
to external pages during web tests. ↪

–allow-failed-policy-fetch-for-test ⊗

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. ↪

–allow-file-access-from-files ⊗

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

–allow-http-background-page ⊗

Allows
non-https URL for background_page for hosted apps. ↪

–allow-http-screen-capture ⊗

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

–allow-insecure-localhost ⊗

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

–allow-legacy-extension-manifests ⊗

Allows the
browser to load extensions that lack a modern manifest when that would
otherwise be forbidden. ↪

–allow-loopback-in-peer-connection ⊗

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

–allow-nacl-crxfs-api^[2] ⊗

Specifies
comma-separated list of extension ids or hosts to grant access to CRX file
system APIs. ↪

–allow-nacl-file-handle-api^[2] ⊗

Specifies
comma-separated list of extension ids or hosts to grant access to file handle
APIs. ↪

–allow-nacl-socket-api^[2] ⊗

Specifies
comma-separated list of extension ids or hosts to grant access to TCP/UDP
socket APIs. ↪

–allow-no-sandbox-job ⊗

Enables the
sandboxed processes to run without a job object assigned to them. This flag
is required to allow Chrome to run in RemoteApps or Citrix. This flag can
reduce the security of the sandboxed processes and allow them to do certain
API calls like shut down Windows or access the clipboard. Also we lose the
chance to kill some processes until the outer job that owns them
finishes. ↪

–allow-outdated-plugins ⊗

Don’t block
outdated plugins. ↪

–allow-popups-during-page-unload ⊗

Allow a page
to show popups during its unloading. TODO(https://crbug.com/937569): Remove
this in Chrome 88. ↪

–allow-pre-commit-input ⊗

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

–allow-profiles-outside-user-dir ⊗

Allows
profiles to be created outside of the user data dir.
TODO(https://crbug.com/1060366): Various places in Chrome assume that all
profiles are within the user data dir. Some tests need to violate that
assumption. The switch should be removed after this workaround is no longer
needed. ↪

–allow-ra-in-dev-mode ⊗

Allows
remote attestation (RA) in dev mode for testing purpose. Usually RA is
disabled in dev mode because it will always fail. However, there are cases in
testing where we do want to go through the permission flow even in dev mode.
This can be enabled by this flag. ↪

–allow-running-insecure-content ⊗

No
description ↪

–allow-sandbox-debugging ⊗

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

–allow-silent-push ⊗

Allows Web
Push notifications that do not show a notification. ↪

–allow-sync-xhr-in-page-dimissal ⊗

Allow a page
to send synchronus XHR during its unloading. TODO(https://crbug.com/1003101):
Remove this in Chrome 88. ↪

–allow-third-party-modules^[1] ⊗

Allows third
party modules to inject by disabling the BINARY_SIGNATURE mitigation policy
on Win10+. Also has other effects in ELF. ↪

–allow-unsecure-dlls^[3] ⊗

Don’t allow
EnableSecureDllLoading to run when this is set. This is only to be used in
tests. ↪

–alsa-amp-device-name ⊗

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. ↪

–alsa-amp-element-name ⊗

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

–alsa-check-close-timeout ⊗

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. ↪

–alsa-enable-upsampling ⊗

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

–alsa-fixed-output-sample-rate ⊗

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

–alsa-input-device^[4] ⊗

The Alsa
device to use when opening an audio input stream. ↪

–alsa-mute-device-name ⊗

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. ↪

–alsa-mute-element-name ⊗

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

–alsa-output-avail-min ⊗

Minimum
number of available frames for scheduling a transfer. ↪

–alsa-output-buffer-size ⊗

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. ↪

–alsa-output-device^[4] ⊗

The Alsa
device to use when opening an audio stream. ↪

–alsa-output-period-size ⊗

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

–alsa-output-start-threshold ⊗

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

–alsa-volume-device-name ⊗

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. ↪

–alsa-volume-element-name ⊗

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

–also-emit-success-logs ⊗

Also emit
full event trace logs for successful tests. ↪

–alt1 ⊗

The
Chrome-Proxy “exp” directive value used by data reduction proxy to
receive an alternative back end implementation. ↪

–alt10 ⊗

No
description ↪

–alt2 ⊗

No
description ↪

–alt3 ⊗

No
description ↪

–alt4 ⊗

No
description ↪

–alt5 ⊗

No
description ↪

–alt6 ⊗

No
description ↪

–alt7 ⊗

No
description ↪

–alt8 ⊗

No
description ↪

–alt9 ⊗

No
description ↪

–always-use-complex-text ⊗

Always use
the complex text path for web tests. ↪

–alwaystrue ⊗

No
description ↪

–android-fonts-path ⊗

Uses the
android SkFontManager on linux. The specified directory should include the
configuration xml file with the name “fonts.xml”. This is used in
blimp to emulate android fonts on linux. ↪

–angle ⊗

No
description ↪

–animation-duration-scale ⊗

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

–app ⊗

Specifies
that the associated value should be launched in “application”
mode. ↪

–app-auto-launched ⊗

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. ↪

–app-cache-force-enabled ⊗

Allows app
cache to be forced on, even when gated by an origin trial. TODO(enne): remove
this once app cache has been removed. ↪

–app-id ⊗

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

–app-launch-url-for-shortcuts-menu-item ⊗

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. ↪

–app-mode-auth-code ⊗

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

–app-mode-oauth-token ⊗

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

–app-mode-oem-manifest ⊗

Path for
app’s OEM manifest file. ↪

–app-shell-allow-roaming^[5] ⊗

Allow
roaming in the cellular network. ↪

–app-shell-host-window-size^[5] ⊗

Size for the
host window to create (i.e. “800×600”). ↪

–app-shell-preferred-network^[5] ⊗

SSID of the
preferred WiFi network. ↪

–apple ⊗

No
description ↪

–apps-gallery-download-url ⊗

The URL that
the webstore APIs download extensions from. Note: the URL must contain one
‘%s’ for the extension ID. ↪

–apps-gallery-update-url ⊗

The update
url used by gallery/webstore extensions. ↪

–apps-gallery-url ⊗

The URL to
use for the gallery link in the app launcher. ↪

–apps-keep-chrome-alive-in-tests^[6] ⊗

Prevents
Chrome from quitting when Chrome Apps are open. ↪

–arc-availability ⊗

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. ↪

–arc-available ⊗

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

–arc-build-properties ⊗

A JSON
dictionary whose content is the same as cros config’s
/arc/build-properties. ↪

–arc-data-cleanup-on-start ⊗

Flag that
forces ARC data be cleaned on each start. ↪

–arc-disable-app-sync ⊗

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

–arc-disable-gms-core-cache ⊗

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

–arc-disable-locale-sync ⊗

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. ↪

–arc-disable-play-auto-install ⊗

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

–arc-disable-system-default-apps ⊗

Used for
development of Android app that are included into ARC++ as system default
apps in order to be able to install them via adb. ↪

–arc-enable-native-bridge-64bit-support-experiment ⊗

Flag to
enables an experiment to allow users to turn on 64-bit support in native
bridge on systems that have such support available but not yet enabled by
default. ↪

–arc-force-cache-app-icons ⊗

Flag that
forces ARC to cache icons for apps. ↪

–arc-force-show-optin-ui ⊗

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

–arc-packages-cache-mode ⊗

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. ↪

–arc-play-store-auto-update ⊗

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

–arc-scale ⊗

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. ↪

–arc-start-mode ⊗

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. ↪

–arc-tos-host-for-tests ⊗

Sets ARC
Terms Of Service hostname url for testing. ↪

–arc-transition-migration-required ⊗

If this flag
is present then the device had ARC M available and gets ARC N when updating.
TODO(pmarko): Remove this when we assess that it’s not necessary anymore:
crbug.com/761348. ↪

–as-browser ⊗

Flag to
launch tests in the browser process. ↪

–ash-color-mode ⊗

Indicates
the current color mode of ash. ↪

–ash-constrain-pointer-to-root ⊗

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

–ash-contextual-nudges-interval ⊗

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

–ash-contextual-nudges-reset-shown-count ⊗

Reset
contextual nudge shown count on login. ↪

–ash-debug-shortcuts ⊗

Enable
keyboard shortcuts useful for debugging. ↪

–ash-dev-shortcuts ⊗

Enable
keyboard shortcuts used by developers only. ↪

–ash-disable-touch-exploration-mode ⊗

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. ↪

–ash-enable-cursor-motion-blur ⊗

Enable
cursor motion blur. ↪

–ash-enable-magnifier-key-scroller ⊗

Enables key
bindings to scroll magnified screen. ↪

–ash-enable-palette-on-all-displays ⊗

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

–ash-enable-software-mirroring ⊗

Enables
software based mirroring. ↪

–ash-enable-unified-desktop^[5] ⊗

Enables
unified desktop mode. ↪

–ash-enable-v1-app-back-button ⊗

Enables
Backbutton on frame for v1 apps. TODO(oshima): Remove this once the feature
is launched. crbug.com/749713. ↪

–ash-hide-notifications-for-factory ⊗

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

–ash-host-window-bounds ⊗

Sets a
window size, optional position, and optional scale factor.
“1024×768” creates a window of size 1024×768.
“100+200-1024×768” positions the window at 100,200.
“1024×768*2” sets the scale factor to 2 for a high DPI display.
“800,0+800-800×800” for two displays at 800×800 resolution.
“800,0+800-800×800,0+1600-800×800” for three displays at 800×800
resolution. ↪

–ash-power-button-position ⊗

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. ↪

–ash-side-volume-button-position ⊗

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”. ↪

–ash-touch-hud ⊗

Enables the
heads-up display for tracking touch points. ↪

–attestation-server ⊗

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

–audio ⊗

No
description ↪

–audio-buffer-size ⊗

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

–audio-output-channels ⊗

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. ↪

–audio-output-sample-rate ⊗

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. ↪

–audio-service-quit-timeout-ms ⊗

Set a
timeout (in milliseconds) for the audio service to quit if there are no
client connections to it. If the value is negative the service never
quits. ↪

–aue-reached-for-update-required-test ⊗

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. ↪

–aura-legacy-power-button ⊗

(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. ↪

–auth-server-whitelist ⊗

Allowlist
for Negotiate Auth servers. ↪

–auth-spnego-account-type^[7] ⊗

Android
authentication account type for SPNEGO authentication ↪

–auto ⊗

No
description ↪

–auto-open-devtools-for-tabs ⊗

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. ↪

–auto-select-desktop-capture-source ⊗

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. ↪

–autofill-api-key ⊗

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. ↪

–autofill-assistant-auth ⊗

Disables
authentication when set to false. This is only useful during development, as
prod instances require authentication. ↪

–autofill-assistant-key ⊗

Sets the API
key to be used instead of Chrome’s default key when sending requests to the
backend. ↪

–autofill-assistant-url ⊗

Overrides
the default backend URL. ↪

–autofill-ios-delay-between-fields ⊗

The delay
between filling two fields. ↪

–autofill-metadata-upload-encoding ⊗

The
randomized encoding type to use when sending metadata uploads. The value of
the parameter must be one of the valid integer values of the
AutofillRandomizedValue_EncodingType enum. ↪

–autofill-server-url ⊗

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

–autofill-upload-throttling-period-in-days ⊗

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

–autoplay-policy ⊗

Command line
flag name to set the autoplay policy. ↪

–autopush ⊗

The command
line alias and URL for the “autopush” environment. ↪

–back-gesture-horizontal-threshold ⊗

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

–blink-settings ⊗

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. ↪

–block-new-web-contents ⊗

If true,
then all pop-ups and calls to window.open will fail. ↪

–bootstrap ⊗

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

–bottom-gesture-start-height ⊗

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. ↪

–browser ⊗

No
description ↪

–browser-startup-dialog ⊗

Causes the
browser process to display a dialog on launch. ↪

–browser-subprocess-path ⊗

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

–browser-test ⊗

Tells
whether the code is running browser tests (this changes the startup URL used
by the content shell and also disables features that can make tests flaky
[like monitoring of memory pressure]). ↪

–bwsi ⊗

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

–bypass-app-banner-engagement-checks ⊗

This flag
causes the user engagement checks for showing app banners to be bypassed. It
is intended to be used by developers who wish to test that their sites
otherwise meet the criteria needed to show app banners. ↪

–cast-app-background-color ⊗

Background
color used when Chromium hasn’t rendered anything yet. ↪

–cast-initial-screen-height ⊗

No
description ↪

–cast-initial-screen-width ⊗

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). ↪

–cc-layer-tree-test-long-timeout ⊗

Increases
timeout for memory checkers. ↪

–cc-layer-tree-test-no-timeout ⊗

Prevents the
layer tree unit tests from timing out. ↪

–cc-scroll-animation-duration-in-seconds ⊗

Controls the
duration of the scroll animation curve. ↪

–cdm ⊗

No
description ↪

–cellular-first ⊗

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. ↪

–check-accessibility-permission^[8] ⊗

No
description ↪

–check-damage-early ⊗

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

–check-for-update-interval ⊗

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

–check-permission^[8] ⊗

No
description ↪

–check-screen-recording-permission^[8] ⊗

No
description ↪

–child-wallpaper-large ⊗

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

–child-wallpaper-small ⊗

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

–chrome-mojo-pipe-token ⊗

The Mojo
pipe token for IPC communication between the Software Reporter and Chrome.
Dropped in M80. ↪

–ChromeOSMemoryPressureHandling ⊗

The memory
pressure thresholds selection which is used to decide whether and when a
memory pressure event needs to get fired. ↪

–cipher-suite-blacklist ⊗

Comma-separated
list of SSL cipher suites to disable. ↪

–clamshell ⊗

Values for
the kAshUiMode flag. ↪

–class^[9] ⊗

The same as
the –class argument in X applications. Overrides the WM_CLASS window
property with the given value. ↪

–cleaning-timeout ⊗

Set the
timeout for the cleaning phase, in minutes. 0 disables the timeout entirely.
WARNING: this switch is used by internal test systems. Be careful when making
changes. ↪

–cleanup-id ⊗

Identifier
used to group all reports generated during the same run of the cleaner,
including runs before and after a reboot. The id is generated by the first
cleaner process for a run, and propagated to spawned or scheduled cleaner
processes. A new id will be generated in the first process for a subsequent
cleanup, so cleanups from the same user cannot be tracked over time. ↪

–clear-key-cdm-path-for-testing ⊗

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. ↪

–clear-token-service ⊗

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

–cloud-print-file ⊗

Tells chrome
to display the cloud print dialog and upload the specified file for
printing. ↪

–cloud-print-file-type ⊗

Specifies
the mime type to be used when uploading data from the file referenced by
cloud-print-file. Defaults to “application/pdf” if
unspecified. ↪

–cloud-print-job-title ⊗

Used with
kCloudPrintFile to specify a title for the resulting print job. ↪

–cloud-print-print-ticket ⊗

Used with
kCloudPrintFile to specify a JSON print ticket for the resulting print job.
Defaults to null if unspecified. ↪

–cloud-print-setup-proxy ⊗

Setup cloud
print proxy for provided printers. This does not start service or register
proxy for autostart. ↪

–cloud-print-url ⊗

The URL of
the cloud print service to use, overrides any value stored in preferences,
and the default. Only used if the cloud print service has been enabled. Used
for testing. ↪

–cloud-print-xmpp-endpoint ⊗

The XMPP
endpoint the cloud print service will use. Only used if the cloud print
service has been enabled. Used for testing. ↪

–compensate-for-unstable-pinch-zoom ⊗

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. ↪

–compile-shader-always-succeeds ⊗

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

–component-updater ⊗

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

–connectivity-check-url ⊗

Url for
network connectivity checking. Default is
“https://clients3.google.com/generate_204”. ↪

–conservative ⊗

No
description ↪

–content-directories ⊗

No
description ↪

–content-shell-hide-toolbar ⊗

Hides
toolbar from content_shell’s host window. ↪

–content-shell-host-window-size ⊗

Size for the
content_shell’s host window (i.e. “800×600”). ↪

–controller ⊗

No
description ↪

–conversions-debug-mode ⊗

Causes the
Conversion Measurement API to run without delays or noise. ↪

–copy-to-download-dir ⊗

Copy user
action data to download directory. ↪

–cors-exempt-headers ⊗

No
description ↪

–crash ⊗

Crash flag
to force a crash right away. Mainly intended for ensuring crashes are
properly recorded by crashpad. ↪

–crash-dumps-dir ⊗

The
directory breakpad should store minidumps in. ↪

–crash-handler ⊗

Runs as the
Crashpad handler. ↪

–crash-loop-before^[5] ⊗

A time_t.
Passed by session_manager into the Chrome user session, indicating that if
Chrome crashes before the indicated time, session_manager will consider this
to be a crash-loop situation and log the user out. Chrome mostly just passes
this to crash_reporter if it crashes. ↪

–crash-on-failure ⊗

When
specified to “enable-leak-detection” command-line option, causes
the leak detector to cause immediate crash when found leak. ↪

–crash-on-hang-threads ⊗

Comma-separated
list of BrowserThreads that cause browser process to crash if the given
browser thread is not responsive. UI/IO are the BrowserThreads that are
supported. For example: –crash-on-hang-threads=UI:18,IO:18 –> Crash the
browser if UI or IO is not responsive for 18 seconds while the other browser
thread is responsive. ↪

–crash-server-url ⊗

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. ↪

–crash-test ⊗

Causes the
browser process to crash on startup. ↪

–crashpad-handler ⊗

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. ↪

–crashpad-handler-pid^[10] ⊗

The process
ID of the Crashpad handler. ↪

–create-browser-on-startup-for-tests ⊗

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/148675) ↪

–cros-region ⊗

Forces CrOS
region value. ↪

–cros-regions-mode ⊗

Control
regions data load (“” is default). ↪

–crosh-command^[5] ⊗

Custom crosh
command. ↪

–cryptauth-http-host ⊗

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

–cryptauth-v2-devicesync-http-host ⊗

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

–cryptauth-v2-enrollment-http-host ⊗

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

–custom-android-messages-domain ⊗

No
description ↪

–custom-devtools-frontend ⊗

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> ↪

–custom-launcher-page ⊗

Specifies
the chrome-extension:// URL for the contents of an additional page added to
the app launcher. ↪

–custom_summary^[7] ⊗

Forces a
custom summary to be displayed below the update menu item. ↪

–d3d-support^[1] ⊗

No
description ↪

–d3d11 ⊗

No
description ↪

–d3d11-null ⊗

Special
switches for “NULL”/stub driver implementations. ↪

–d3d11on12 ⊗

No
description ↪

–d3d9 ⊗

No
description ↪

–daemon ⊗

No
description ↪

–dark ⊗

No
description ↪

–data-path ⊗

Makes
Content Shell use the given path for its data directory. ↪

–data-reduction-proxy-client-config ⊗

Uses the
encoded ClientConfig instead of fetching one from the config server. This
value is always used, regardless of error or expiration. The value should be
a base64 encoded binary protobuf. ↪

–data-reduction-proxy-config-url ⊗

The URL from
which to retrieve the Data Reduction Proxy configuration. ↪

–data-reduction-proxy-experiment ⊗

The name of
a Data Reduction Proxy experiment to run. These experiments are defined by
the proxy server. Use –force-fieldtrials for Data Reduction Proxy field
trials. ↪

–data-reduction-proxy-http-proxies ⊗

The
semicolon-separated list of proxy server URIs to override the list of HTTP
proxies returned by the Data Saver API. It is illegal to use
|kDataReductionProxy| or |kDataReductionProxyFallback| switch in conjunction
with |kDataReductionProxyHttpProxies|. If the URI omits a scheme, then the
proxy server scheme defaults to HTTP, and if the port is omitted then the
default port for that scheme is used. E.g. “http://foo.net:80”,
“http://foo.net”, “foo.net:80”, and “foo.net”
are all equivalent. ↪

–data-reduction-proxy-pingback-url ⊗

No
description ↪

–data-reduction-proxy-secure-proxy-check-url ⊗

Sets a
secure proxy check URL to test before committing to using the Data Reduction
Proxy. Note this check does not go through the Data Reduction Proxy. ↪

–data-reduction-proxy-server-experiments-disabled ⊗

Disables
server experiments that may be enabled through field trial. ↪

–dbus-stub ⊗

Forces the
stub implementation of D-Bus clients. ↪

–de-jelly-screen-width ⊗

Screen width
is useful for debugging. Shipping implementations should detect this. ↪

–deadline-to-synchronize-surfaces ⊗

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

–debug-devtools ⊗

Run devtools
tests in debug mode (not bundled and minified) ↪

–debug-enable-frame-toggle ⊗

Enables a
frame context menu item that toggles the frame in and out of glass mode
(Windows Vista and up only). ↪

–debug-packed-apps ⊗

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

–debug-print^[11] ⊗

Enables
support to debug printing subsystem. ↪

–default ⊗

No
description ↪

–default-background-color ⊗

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

–default-country-code^[7] ⊗

Default
country code to be used for search engine localization. ↪

–default-tile-height ⊗

No
description ↪

–default-tile-width ⊗

Sets the
tile size used by composited layers. ↪

–default-wallpaper-is-oem ⊗

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

–default-wallpaper-large ⊗

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

–default-wallpaper-small ⊗

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

–deny-permission-prompts ⊗

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

–derelict-detection-timeout ⊗

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

–derelict-idle-timeout ⊗

Time in
seconds before a derelict machines starts demo mode. ↪

–desktop ⊗

No
description ↪

–desktop-window-1080p ⊗

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

–deterministic-mode ⊗

A meta flag.
This sets a number of flags which put the browser into deterministic mode
where begin frames should be issued over DevToolsProtocol
(experimental). ↪

–device-management-url ⊗

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

–device-scale-factor^[1] ⊗

Device scale
factor passed to certain processes like renderers, etc. ↪

–devtools-flags ⊗

Passes
command line parameters to the DevTools front-end. ↪

–diagnostics ⊗

Triggers a
plethora of diagnostic modes. ↪

–diagnostics-format ⊗

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

–diagnostics-recovery ⊗

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

–disable-2d-canvas-clip-aa ⊗

Disable
antialiasing on 2d canvas clips ↪

–disable-2d-canvas-image-chromium ⊗

Disables
Canvas2D rendering into a scanout buffer for overlay support. ↪

–disable-3d-apis ⊗

Disables
client-visible 3D APIs, in particular WebGL and Pepper 3D. 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-accelerated-2d-canvas ⊗

Disable
gpu-accelerated 2d canvas. ↪

–disable-accelerated-mjpeg-decode ⊗

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

–disable-accelerated-video-decode ⊗

Disables
hardware acceleration of video decode, where available. ↪

–disable-accelerated-video-encode ⊗

Disables
hardware acceleration of video encode, where available. ↪

–disable-and-delete-previous-log ⊗

Disable cros
action logging. ↪

–disable-angle-features ⊗

Disables
specified comma separated ANGLE features if found. ↪

–disable-app-list-dismiss-on-blur ⊗

If set, the
app list will not be dismissed when it loses focus. This is useful when
testing the app list or a custom launcher page. It can still be dismissed via
the other methods (like the Esc key). ↪

–disable-arc-cpu-restriction ⊗

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

–disable-arc-data-wipe ⊗

Disables
android user data wipe on opt out. ↪

–disable-arc-opt-in-verification ⊗

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

–disable-audio-output ⊗

No
description ↪

–disable-audio-support-for-desktop-share ⊗

No
description ↪

–disable-auto-reload ⊗

Disable
auto-reload of error pages. ↪

–disable-auto-wpt-origin-isolation ⊗

Disables the
automatic origin isolation of web platform test domains. We normally
origin-isolate them for better test coverage, but tests of opt-in origin
isolation need to disable this. ↪

–disable-avfoundation-overlays^[6] ⊗

Disable use
of AVFoundation to draw video content. ↪

–disable-ax-menu-list ⊗

Optionally
disable AXMenuList, which makes the internal pop-up menu UI for a select
element directly accessible. ↪

–disable-back-forward-cache ⊗

Disables the
BackForwardCache feature. ↪

–disable-background-media-suspend ⊗

Do not
immediately suspend media in background tabs. ↪

–disable-background-networking ⊗

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-background-timer-throttling ⊗

Disable task
throttling of timer tasks from background pages. ↪

–disable-backgrounding-occluded-windows ⊗

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

–disable-backing-store-limit ⊗

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

–disable-best-effort-tasks ⊗

Delays
execution of TaskPriority::BEST_EFFORT tasks until shutdown. ↪

–disable-blink-features ⊗

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. ↪

–disable-breakpad ⊗

Disables the
crash reporting. ↪

–disable-bundled-ppapi-flash ⊗

Disables the
bundled PPAPI version of Flash. ↪

–disable-cancel-all-touches^[12] ⊗

Disable
CancelAllTouches() function for the implementation on cancel single
touches. ↪

–disable-canvas-aa ⊗

Disable
antialiasing on 2d canvas. ↪

–disable-checker-imaging ⊗

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

–disable-checking-optimization-guide-user-permissions ⊗

No
description ↪

–disable-client-side-phishing-detection ⊗

Disables the
client-side phishing detection feature. Note that even if client-side
phishing detection is enabled, it will only be active if the user has opted
in to UMA stats and SafeBrowsing is enabled in the preferences. ↪

–disable-component-cloud-policy ⊗

Disables
fetching and storing cloud policy for components. ↪

–disable-component-extensions-with-background-pages ⊗

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

–disable-component-update ⊗

No
description ↪

–disable-composited-antialiasing ⊗

Disables
layer-edge anti-aliasing in the compositor. ↪

–disable-cookie-encryption ⊗

Whether
cookies stored as part of user profile are encrypted. ↪

–disable-crash-reporter ⊗

Disable
crash reporter for headless. It is enabled by default in official
builds. ↪

–disable-d3d11 ⊗

Disables use
of D3D11. ↪

–disable-databases ⊗

Disables
HTML5 DB support. ↪

–disable-default-apps ⊗

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

–disable-demo-mode ⊗

Disables the
Chrome OS demo. ↪

–disable-dev-shm-usage^[13] ⊗

The /dev/shm
partition is too small in certain VM environments, causing Chrome to fail or
crash (see http://crbug.com/715363). Use this flag to work-around this issue
(a temporary directory will always be used to create anonymous shared memory
files). ↪

–disable-device-disabling ⊗

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

–disable-device-discovery-notifications ⊗

Disables
device discovery notifications. ↪

–disable-dinosaur-easter-egg ⊗

Disables the
dinosaur easter egg on the offline interstitial. ↪

–disable-direct-composition ⊗

Disables
DirectComposition surface. ↪

–disable-direct-composition-video-overlays ⊗

Disables
using DirectComposition video overlays, even if hardware overlays are
supported. ↪

–disable-domain-blocking-for-3d-apis ⊗

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

–disable-domain-reliability ⊗

Disables
Domain Reliability Monitoring. ↪

–disable-dwm-composition ⊗

Disables use
of DWM composition for top level windows. ↪

–disable-encryption-migration ⊗

Disable
encryption migration for user’s cryptohome to run latest Arc. ↪

–disable-enterprise-policy ⊗

Disables
enterprise policy support. ↪

–disable-es3-gl-context ⊗

Disables use
of ES3 backend (use ES2 backend instead). ↪

–disable-es3-gl-context-for-testing ⊗

Disables use
of ES3 backend at a lower level, for testing purposes. This isn’t guaranteed
to work everywhere, so it’s test-only. ↪

–disable-experimental-accessibility-chromevox-language-switching ⊗

Disables
ChromeVox language switching feature. ↪

–disable-experimental-accessibility-chromevox-search-menus ⊗

Disables
ChromeVox search menus feature. ↪

–disable-explicit-dma-fences ⊗

Disable
explicit DMA-fences ↪

–disable-extensions ⊗

Disable
extensions. ↪

–disable-extensions-except ⊗

Disable
extensions except those specified in a comma-separated list. ↪

–disable-extensions-file-access-check ⊗

Disable
checking for user opt-in for extensions that want to inject script into file
URLs (ie, always allow it). This is used during automated testing. ↪

–disable-extensions-http-throttling ⊗

Disable the
net::URLRequestThrottlerManager functionality for requests originating from
extensions. ↪

–disable-features ⊗

Comma-separated
list of feature names to disable. See also kEnableFeatures. ↪

–disable-fetching-hints-at-navigation-start ⊗

No
description ↪

–disable-field-trial-config ⊗

Disable
field trial tests configured in fieldtrial_testing_config.json. ↪

–disable-file-system ⊗

Disable
FileSystem API. ↪

–disable-fine-grained-time-zone-detection ⊗

Disables
fine grained time zone detection. ↪

–disable-flash-3d ⊗

Disable 3D
inside of flapper. ↪

–disable-flash-stage3d ⊗

Disable
Stage3D inside of flapper. ↪

–disable-font-subpixel-positioning ⊗

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

–disable-frame-rate-limit ⊗

Disables
begin frame limiting in both cc scheduler and display scheduler. Also implies
–disable-gpu-vsync (see //ui/gl/gl_switches.h). ↪

–disable-gaia-services ⊗

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

–disable-gesture-requirement-for-presentation ⊗

Disable user
gesture requirement for presentation. ↪

–disable-gl-drawing-for-tests ⊗

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

–disable-gl-error-limit ⊗

Disable the
GL error log limit. ↪

–disable-gl-extensions ⊗

Disables
specified comma separated GL Extensions if found. ↪

–disable-glsl-translator ⊗

Disable the
GLSL translator. ↪

–disable-gpu ⊗

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

–disable-gpu-compositing ⊗

Prevent the
compositor from using its GPU implementation. ↪

–disable-gpu-driver-bug-workarounds ⊗

Disable
workarounds for various GPU driver bugs. ↪

–disable-gpu-early-init ⊗

Disable
proactive early init of GPU process. ↪

–disable-gpu-memory-buffer-compositor-resources ⊗

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

–disable-gpu-memory-buffer-video-frames ⊗

Disable
GpuMemoryBuffer backed VideoFrames. ↪

–disable-gpu-process-crash-limit ⊗

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

–disable-gpu-process-for-dx12-info-collection ⊗

Disables the
non-sandboxed GPU process for DX12 info collection ↪

–disable-gpu-program-cache ⊗

Turn off gpu
program caching ↪

–disable-gpu-rasterization ⊗

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

–disable-gpu-sandbox ⊗

Disables the
GPU process sandbox. ↪

–disable-gpu-shader-disk-cache ⊗

Disables the
GPU shader on disk cache. ↪

–disable-gpu-vsync ⊗

Stop the GPU
from synchronizing presentation with vblank. ↪

–disable-gpu-watchdog ⊗

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

–disable-hang-monitor ⊗

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-headless-mode ⊗

Disables the
shell from beginning in headless mode. Tests will then attempt to use the
hardware GPU for rendering. This is only followed when kRunWebTests is
set. ↪

–disable-hid-detection-on-oobe ⊗

Disables
HID-detection OOBE screen. ↪

–disable-highres-timer^[1] ⊗

Disable
high-resolution timer on Windows. ↪

–disable-histogram-customizer ⊗

Disable the
RenderThread’s HistogramCustomizer. ↪

–disable-hosted-app-shim-creation^[6] ⊗

Disables app
shim creation for hosted apps on Mac. ↪

–disable-image-animation-resync ⊗

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

–disable-in-process-stack-traces ⊗

Disables the
in-process stack traces. ↪

–disable-ios-password-suggestions ⊗

Disable
showing available password credentials in the keyboard accessory view when
focused on form fields. ↪

–disable-ipc-flooding-protection ⊗

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-javascript-harmony-shipping ⊗

Disable
latest shipping ECMAScript 6 features. ↪

–disable-kill-after-bad-ipc ⊗

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. ↪

–disable-layer-tree-host-memory-pressure ⊗

Disables
LayerTreeHost::OnMemoryPressure ↪

–disable-lcd-text ⊗

Disables LCD
text. ↪

–disable-legacy-window^[1] ⊗

Disable the
Legacy Window which corresponds to the size of the WebContents. ↪

–disable-local-storage ⊗

Disable
LocalStorage. ↪

–disable-logging ⊗

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

–disable-logging-redirect^[5] ⊗

Disables
logging redirect for testing. ↪

–disable-login-animations ⊗

Avoid doing
expensive animations upon login. ↪

–disable-login-screen-apps^[5] ⊗

Disables
apps on the login screen. By default, they are allowed and can be installed
through policy. ↪

–disable-low-end-device-mode ⊗

Force
disabling of low-end device mode when set. ↪

–disable-low-latency-dxva ⊗

Disables
using CODECAPI_AVLowLatencyMode when creating DXVA decoders. ↪

–disable-low-res-tiling ⊗

When using
CPU rasterizing disable low resolution tiling. This uses less power, particularly
during animations, but more white may be seen during fast scrolling
especially on slower devices. ↪

–disable-mac-overlays^[6] ⊗

Fall back to
using CAOpenGLLayers display content, instead of the IOSurface based overlay
display path. ↪

–disable-machine-cert-request ⊗

Disables
requests for an enterprise machine certificate during attestation. ↪

–disable-main-frame-before-activation ⊗

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

–disable-media-session-api^[7] ⊗

Disable
Media Session API ↪

–disable-metal-test-shaders ⊗

No
description ↪

–disable-modal-animations^[6] ⊗

Disable
animations for showing and hiding modal dialogs. ↪

–disable-mojo-renderer ⊗

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. ↪

–disable-multi-display-layout ⊗

Disables the
multiple display layout UI. ↪

–disable-namespace-sandbox ⊗

Disables
usage of the namespace sandbox. ↪

–disable-new-content-rendering-timeout ⊗

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

–disable-notifications ⊗

Disables the
Web Notification and the Push APIs. ↪

–disable-nv12-dxgi-video ⊗

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

–disable-offer-store-unmasked-wallet-cards ⊗

Force hiding
the local save checkbox in the autofill dialog box for getting the full
credit card number for a wallet card. The card will never be stored
locally. ↪

–disable-oop-rasterization ⊗

Disables OOP
rasterization. Takes precedence over the enable flag. ↪

–disable-oopr-debug-crash-dump^[7] ⊗

Disables
debug crash dumps for OOPR. ↪

–disable-oor-cors ⊗

Disable
OOR-CORS in child processes regardless of the base::Feature flag. ↪

–disable-origin-trial-controlled-blink-features ⊗

Disables all
RuntimeEnabledFeatures that can be enabled via OriginTrials. ↪

–disable-overscroll-edge-effect^[7] ⊗

Disable
overscroll edge effects like those found in Android views. ↪

–disable-partial-raster ⊗

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

–disable-pepper-3d ⊗

Disable
Pepper3D. ↪

–disable-pepper-3d-image-chromium ⊗

Disable
Image Chromium for Pepper 3d. ↪

–disable-per-user-timezone ⊗

Disables
per-user timezone. ↪

–disable-permissions-api ⊗

Disables the
Permissions API. ↪

–disable-pinch ⊗

Disables
compositor-accelerated touch-screen pinch gestures. ↪

–disable-pnacl-crash-throttling ⊗

Disables
crash throttling for Portable Native Client. ↪

–disable-popup-blocking ⊗

Disables
pop-up blocking. ↪

–disable-prefer-compositing-to-lcd-text ⊗

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

–disable-presentation-api ⊗

Disables the
Presentation API. ↪

–disable-print-preview ⊗

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

–disable-prompt-on-repost ⊗

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. ↪

–disable-pull-to-refresh-effect^[7] ⊗

Disable the
pull-to-refresh effect when vertically overscrolling content. ↪

–disable-pushstate-throttle ⊗

Disables
throttling of history.pushState/replaceState calls. ↪

–disable-reading-from-canvas ⊗

Taints all
<canvas> elements, regardless of origin. ↪

–disable-remote-core-animation^[6] ⊗

Disable use
of cross-process CALayers to display content directly from the GPU process on
Mac. ↪

–disable-remote-fonts ⊗

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

–disable-remote-playback-api ⊗

Disables the
RemotePlayback API. ↪

–disable-renderer-accessibility ⊗

Turns off
the accessibility in the renderer. ↪

–disable-renderer-backgrounding ⊗

Prevent
renderer process backgrounding when set. ↪

–disable-resource-scheduler ⊗

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

–disable-rgba-4444-textures ⊗

Disables
RGBA_4444 textures. ↪

–disable-rollback-option ⊗

Disables
rollback option on reset screen. ↪

–disable-rtc-smoothness-algorithm ⊗

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

–disable-running-as-system-compositor ⊗

Disable
running as system compositor. ↪

–disable-screen-orientation-lock^[7] ⊗

Disable the
locking feature of the screen orientation API. ↪

–disable-scroll-to-text-fragment ⊗

This switch
disables the ScrollToTextFragment feature. ↪

–disable-search-geolocation-disclosure ⊗

Disables
showing the search geolocation disclosure UI. Used for perf testing. ↪

–disable-seccomp-filter-sandbox ⊗

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

–disable-setuid-sandbox ⊗

Disable the
setuid sandbox (Linux only). ↪

–disable-shader-name-hashing ⊗

Turn off
user-defined name hashing in shaders. ↪

–disable-shared-workers ⊗

Disable
shared workers. ↪

–disable-signin-frame-client-certs ⊗

Disables
client certificate authentication on the sign-in frame on the Chrome OS
sign-in profile. TODO(https://crbug.com/844022): Remove this flag when
reaching endpoints that request client certs does not hang anymore when there
is no system token yet. ↪

–disable-signin-scoped-device-id ⊗

Disables
sending signin scoped device id to LSO with refresh token request. ↪

–disable-site-isolation-for-policy^[7] ⊗

Just like
kDisableSiteIsolation, but doesn’t show the “stability and security will
suffer” butter bar warning. ↪

–disable-site-isolation-trials ⊗

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. ↪

–disable-skia-runtime-opts ⊗

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 ⊗

Disable
smooth scrolling for testing. ↪

–disable-software-compositing-fallback ⊗

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

–disable-software-rasterizer ⊗

Disables the
use of a 3D software rasterizer. ↪

–disable-software-video-decoders ⊗

No
description ↪

–disable-speech-api ⊗

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

–disable-speech-synthesis-api ⊗

Disables the
speech synthesis part of Web Speech API. ↪

–disable-sync ⊗

Disables
syncing browser data to a Google Account. ↪

–disable-sync-types ⊗

Disables
syncing one or more sync data types that are on by default. See
sync/base/model_type.h for possible types. Types should be comma separated,
and follow the naming convention for string representation of model types,
e.g.: –disable-synctypes=’Typed URLs, Bookmarks, Autofill Profiles’ ↪

–disable-system-font-check ⊗

Disables the
check for the system font when specified. ↪

–disable-test-root-certs ⊗

Disables
adding the test certs in the network process. ↪

–disable-third-party-keyboard-workaround ⊗

Disables the
3rd party keyboard omnibox workaround. ↪

–disable-threaded-animation ⊗

No description ↪

–disable-threaded-compositing ⊗

Disable
multithreaded GPU compositing of web content. ↪

–disable-threaded-scrolling ⊗

Disable
multithreaded, compositor scrolling of web content. ↪

–disable-timeouts-for-profiling^[7] ⊗

Disable
timeouts that may cause the browser to die when running slowly. This is
useful if running with profiling (such as debug malloc). ↪

–disable-touch-adjustment ⊗

Disables
touch adjustment. ↪

–disable-touch-drag-drop ⊗

Disables
touch event based drag and drop. ↪

–disable-usb-keyboard-detect^[1] ⊗

Disables the
USB keyboard detection for blocking the OSK on Win8+. ↪

–disable-v8-idle-tasks ⊗

Disable V8
idle tasks. ↪

–disable-video-capture-use-gpu-memory-buffer ⊗

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. ↪

–disable-volume-adjust-sound ⊗

Disables
volume adjust sound. ↪

–disable-vsync-for-tests ⊗

No
description ↪

–disable-vulkan-fallback-to-gl-for-testing ⊗

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

–disable-vulkan-surface ⊗

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

–disable-wake-on-wifi ⊗

Disables
wake on wifi features. ↪

–disable-web-security ⊗

Don’t
enforce the same-origin policy. (Used by people testing their sites.) ↪

–disable-webgl ⊗

Disable all
versions of WebGL. ↪

–disable-webgl-image-chromium ⊗

Disables
WebGL rendering into a scanout buffer for overlay support. ↪

–disable-webgl2 ⊗

Disable
WebGL2. ↪

–disable-webrtc-encryption ⊗

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

–disable-webrtc-hw-decoding ⊗

Disables HW
decode acceleration for WebRTC. ↪

–disable-webrtc-hw-encoding ⊗

Disables HW
encode acceleration for WebRTC. ↪

–disable-windows10-custom-titlebar^[1] ⊗

Disables
custom-drawing the window titlebar on Windows 10. ↪

–disable-yuv-image-decoding ⊗

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

–disable-yuv420-biplanar ⊗

Disable a
NV12 format buffer allocation with gfx::BufferUsage::SCANOUT_CPU_READ_WRITE
usage. ↪

–disable-zero-browsers-open-for-tests ⊗

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/119175) ↪

–disable-zero-copy ⊗

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

–disable-zero-copy-dxgi-video ⊗

Disable the
video decoder from drawing directly to a texture. ↪

–disabled ⊗

No
description ↪

–disallow-non-exact-resource-reuse ⊗

Disable
re-use of non-exact resources to fulfill ResourcePool requests. Intended only
for use in layout or pixel tests to reduce noise. ↪

–discoverability ⊗

No
description ↪

–disk-cache-dir ⊗

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

–disk-cache-size ⊗

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

–display ⊗

Which X11
display to connect to. Emulates the GTK+ “–display=” command line
argument. ↪

–dmg-device^[6] ⊗

When
switches::kProcessType is switches::kRelauncherProcess, if this switch is
also present, the relauncher process will unmount and eject a mounted disk
image and move its disk image file to the trash. The argument’s value must be
a BSD device name of the form “diskN” or “diskNsM”. ↪

–dns-log-details ⊗

No
description ↪

–document-user-activation-required ⊗

Autoplay
policy that requires a document user activation. ↪

–dom-automation ⊗

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. ↪

–dont-require-litepage-redirect-infobar ⊗

Do not
require the user notification InfoBar to be shown before triggering a Lite
Page Redirect preview. ↪

–double-buffer-compositing ⊗

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

–draw-view-bounds-rects ⊗

Draws a
semitransparent rect to indicate the bounds of each view. ↪

–dump-blink-runtime-call-stats ⊗

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

–dump-browser-histograms ⊗

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

–dump-dom ⊗

Instructs
headless_shell to print document.body.innerHTML to stdout. ↪

–dump-raw-logs ⊗

Dump the raw
logs to a file with the same base name as the executable. The dumped file is
a raw protobuf and has a “pb” extension. WARNING: this switch is
used by internal test systems. Be careful when making changes. ↪

–easy-unlock-app-path ⊗

Overrides
the path of Easy Unlock component app. ↪

–edge-touch-filtering^[12] ⊗

Tells Chrome
to do edge touch filtering. Useful for convertible tablet. ↪

–egl ⊗

No
description ↪

–elevate ⊗

No
description ↪

–elevated ⊗

Identify
that the process is already supposed to be elevated, so that we don’t try
again. ↪

–embedded-extension-options ⊗

Enables
extension options to be embedded in chrome://extensions rather than a new
tab. ↪

–emulate-shader-precision ⊗

Emulate ESSL
lowp and mediump float precisions by mutating the shaders to round
intermediate values in ANGLE. ↪

–enable-accelerated-2d-canvas ⊗

Enable
accelerated 2D canvas. ↪

–enable-accessibility-object-model ⊗

Enable the
experimental Accessibility Object Model APIs in development. ↪

–enable-accessibility-tab-switcher^[7] ⊗

Enable the
accessibility tab switcher. ↪

–enable-adaptive-selection-handle-orientation^[7] ⊗

Enable
inverting of selection handles so that they are not clipped by the viewport
boundaries. ↪

–enable-aggressive-domstorage-flushing ⊗

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

–enable-angle-features ⊗

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

–enable-app-list ⊗