Migrate about:flags messages to const char*

chrome/browser/flags_descriptions.h

Index: chrome/browser/flags_descriptions.h
diff --git a/chrome/browser/flags_descriptions.h b/chrome/browser/flags_descriptions.h
new file mode 100644
index 0000000000000000000000000000000000000000..0dce04eb3960a060aa732ea2f9786a4ba8c5b17c
--- /dev/null
+++ b/chrome/browser/flags_descriptions.h
@@ -0,0 +1,3150 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.

[vabr (Chromium), 2017/03/26 13:27:45]

The strings / comments in this file are copied from the resources in the way
described in the linked design doc. I made no attempt to fix typos etc. in them,
to keep the churn low (it is 700+ messages).

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_FLAGS_DESCRIPTIONS_H_
+#define CHROME_BROWSER_FLAGS_DESCRIPTIONS_H_
+
+#include "build/build_config.h"
+#include "build/buildflag.h"
+#include "media/media_features.h"

[Alexei Svitkine (slow), 2017/03/27 16:37:29]

Nit: Maybe add a comment why this is needed?

[vabr (Chromium), 2017/03/27 18:12:33]

Done.

+

[Alexei Svitkine (slow), 2017/03/27 16:37:29]

Please add a file-level comment here about what this file is for.

[vabr (Chromium), 2017/03/27 18:12:33]

Done.

+namespace flags_descriptions {
+
+//  Material Design version of chrome://bookmarks
+
+// Name for the flag to enable the material design bookmarks page.
+extern const char kEnableMaterialDesignBookmarksName[];
+
+// Description for the flag to enable the material design bookmarks page.
+extern const char kEnableMaterialDesignBookmarksDescription[];
+
+//  Material Design version of chrome://policy
+
+// Name for the flag to enable the material design policy page.
+extern const char kEnableMaterialDesignPolicyPageName[];
+
+// Description for the flag to enable the material design policy page.
+extern const char kEnableMaterialDesignPolicyPageDescription[];
+
+//  Material Design version of chrome://history
+
+// Name for the flag to enable the material design history page.
+extern const char kEnableMaterialDesignHistoryName[];
+
+// Description for the flag to enable the material design history page.
+extern const char kEnableMaterialDesignHistoryDescription[];
+
+//  Material Design version of chrome://settings
+
+// Name for the flag to enable the material design settings page.
+extern const char kEnableMaterialDesignSettingsName[];
+
+// Description for the flag to enable the material design settings page.
+extern const char kEnableMaterialDesignSettingsDescription[];
+
+//  Material Design version of chrome://extensions
+
+// Name for the flag to enable the material design extensions page.
+extern const char kEnableMaterialDesignExtensionsName[];
+
+// Description for the flag to enable the material design extensions page.
+extern const char kEnableMaterialDesignExtensionsDescription[];
+
+//  Material Design version of feedback form
+
+// Name for the flag to enable the material design feedback UI.
+extern const char kEnableMaterialDesignFeedbackName[];
+
+// Description for the flag to enable the material design feedback UI.
+extern const char kEnableMaterialDesignFeedbackDescription[];
+
+//  Report URL to SafeSearch
+
+// Name for the flag to enable reporting URLs to SafeSearch.
+extern const char kSafeSearchUrlReportingName[];
+
+// Description for the flag to enable reporting URLs to SafeSearch.
+extern const char kSafeSearchUrlReportingDescription[];
+
+//  Device scale factor change in content crbug.com/485650.
+
+// Name for the flag to use Blink's zooming mechanism to implement device scale
+// factor.
+extern const char kEnableUseZoomForDsfName[];
+
+// Description for the flag to use Blink's zooming mechanism to implement device
+// scale factor.
+extern const char kEnableUseZoomForDsfDescription[];
+
+// Text to indicate that it'll use the platform settings to enable/disable
+// use-zoom-for-dsf mode.
+extern const char kEnableUseZoomForDsfChoiceDefault[];
+
+// Text to indicate the use-zoom-for-dsf mode is enabled.
+extern const char kEnableUseZoomForDsfChoiceEnabled[];
+
+// Text to indicate the use-zoom-for-dsf mode is disabled.
+extern const char kEnableUseZoomForDsfChoiceDisabled[];
+
+// Name for the flag to set parameters for No-State Prefetch.
+extern const char kNostatePrefetch[];
+
+// Description for the flag to set parameters for No-State Prefetch.
+extern const char kNostatePrefetchDescription[];
+
+// Name for the flag to set parameters for Speculative Prefetch
+extern const char kSpeculativePrefetchName[];
+
+// Description for the flag to set parameters for Speculative Prefetch.
+extern const char kSpeculativePrefetchDescription[];
+
+//  Force Tablet Mode
+
+// Name for the flag to force tablet mode.
+extern const char kForceTabletModeName[];
+
+// Description for the flag to force tablet mode.
+extern const char kForceTabletModeDescription[];
+
+// Description of the TouchView mode. In TouchView mode, the keyboard can flip
+// behind the screen so the Chromebook operates like a tablet computer.
+extern const char kForceTabletModeTouchview[];
+
+// Description of the Clamshell mode. In Clamshell mode, the Chromebook operates
+// like a standard laptop computer, keyboard on the bottom, screen on top, with
+// a hinge like a clamshell.
+extern const char kForceTabletModeClamshell[];
+
+// Description of the default or 'automatic' mode.
+extern const char kForceTabletModeAuto[];
+
+//  Print Preview features
+
+// Name for the flag to add the option to print PDFs as images to print preview.
+extern const char kPrintPdfAsImageName[];
+
+// Description for the flag to add the option to print PDFs as images in print
+// preview.
+extern const char kPrintPdfAsImageDescription[];
+
+// Name for the flag to add the print scaling feature to print preview.
+extern const char kPrintScalingName[];
+
+// Description for the flag to add the print scaling feature to print preview.
+extern const char kPrintScalingDescription[];
+
+// Name of the 'Native Client' lab.
+extern const char kNaclName[];
+
+#if defined(OS_ANDROID)
+
+// Mobile: Description of the 'Native Client' lab.
+extern const char kNaclDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if !defined(OS_ANDROID)
+
+// Description of the 'Native Client' lab.
+extern const char kNaclDescription[];
+
+#endif  // !defined(OS_ANDROID)
+
+// Name of the 'NaCl GDB debug stub' lab.
+extern const char kNaclDebugName[];
+
+// Description of the 'NaCl GDB debug stub' lab.
+extern const char kNaclDebugDescription[];
+
+#if !defined(OS_ANDROID)
+
+// Name of the 'Force PNaCl Subzero' lab.
+extern const char kPnaclSubzeroName[];
+
+// Description of the 'Force PNaCl Subzero' lab.
+extern const char kPnaclSubzeroDescription[];
+
+#endif  // !defined(OS_ANDROID)
+
+// Name of the 'Restrict NaCl GDB debugging' lab.
+extern const char kNaclDebugMaskName[];
+
+// Description of the 'Restrict NaCl GDB debugging' lab.
+extern const char kNaclDebugMaskDescription[];
+
+extern const char kNaclDebugMaskChoiceDebugAll[];
+
+extern const char kNaclDebugMaskChoiceExcludeUtilsPnacl[];
+
+extern const char kNaclDebugMaskChoiceIncludeDebug[];
+
+// Name of the 'HTTP form warning' feature.
+extern const char kEnableHttpFormWarningName[];
+
+// Description of the 'HTTP form warning' feature.
+extern const char kEnableHttpFormWarningDescription[];
+
+// Name of the 'Mark Non-Secure Origins As' lab.
+extern const char kMarkHttpAsName[];
+
+// Description of the 'Mark Non-Secure Origins As' lab.
+extern const char kMarkHttpAsDescription[];
+
+extern const char kMarkHttpAsDangerous[];
+
+// Name of the 'Save Page as MHTML' lab.
+extern const char kSavePageAsMhtmlName[];
+
+// Description of the 'Save Page as MHTML' lab.
+extern const char kSavePageAsMhtmlDescription[];
+
+//  Flag and values for MHTML Geenrator options lab.
+
+// Name of the 'MHTML Generator Options' lab.
+extern const char kMhtmlGeneratorOptionName[];
+
+// Description of the 'MHTML Generator Options' lab.
+extern const char kMhtmlGeneratorOptionDescription[];
+
+extern const char kMhtmlSkipNostoreMain[];
+
+extern const char kMhtmlSkipNostoreAll[];
+
+// Title of the 'device discovery notificatios' flag.
+extern const char kDeviceDiscoveryNotificationsName[];
+
+// Description of the 'device discovery notifications' flag.
+extern const char kDeviceDiscoveryNotificationsDescription[];
+
+#if defined(OS_WIN)
+
+extern const char kCloudPrintXpsName[];
+
+extern const char kCloudPrintXpsDescription[];
+
+#endif  // defined(OS_WIN)
+
+// Title of the flag for loading the Media Router component extension.
+extern const char kLoadMediaRouterComponentExtensionName[];
+
+// Description of the flag for loading the Media Router component extension.
+extern const char kLoadMediaRouterComponentExtensionDescription[];
+
+extern const char kPrintPreviewRegisterPromosName[];
+
+extern const char kPrintPreviewRegisterPromosDescription[];
+
+// Title of the flag which enables scroll prediction.
+extern const char kScrollPredictionName[];
+
+// Title of the flag which controls UI layout in the browser's top chrome.
+extern const char kTopChromeMd[];
+
+// Description of the flag which changes the material design elements in the top
+// chrome of the browser.
+extern const char kTopChromeMdDescription[];
+
+// Top Chrome material design option (default).
+extern const char kTopChromeMdMaterial[];
+
+// Top Chrome material hybrid design option (for touchscreens).
+extern const char kTopChromeMdMaterialHybrid[];
+
+// Title of the flag which enables the site settings all sites list and site
+// details.
+extern const char kSiteSettings[];
+
+// Description of the flag which enables or disables the site settings all sites
+// list and site details.
+extern const char kSiteSettingsDescription[];
+
+// Title of the flag which enables or disables material design in the rest of
+// the native UI of the browser (beyond top chrome).
+extern const char kSecondaryUiMd[];
+
+// Description of the flag which enables or disables material design in the rest
+// of the native UI of the browser (beyond top chrome).
+extern const char kSecondaryUiMdDescription[];
+
+// Description of the flag to enable scroll prediction.
+extern const char kScrollPredictionDescription[];
+
+// Title of the flag for add to shelf banners.
+extern const char kAddToShelfName[];
+
+// Description of the flag for add to shelf banners.
+extern const char kAddToShelfDescription[];
+
+// Title of the flag which bypasses the user engagement checks for app banners.
+extern const char kBypassAppBannerEngagementChecksName[];
+
+// Description of the flag to bypass the user engagement checks for app banners.
+extern const char kBypassAppBannerEngagementChecksDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag to enable the accessibility tab switcher.
+extern const char kAccessibilityTabSwitcherName[];
+
+// Description of the flag to enable the accessibility tab switcher.
+extern const char kAccessibilityTabSwitcherDescription[];
+
+// Name of the flag to enable the physical web feature.
+extern const char kEnablePhysicalWebName[];
+
+// Description of the flag to enable the physical web feature.
+extern const char kEnablePhysicalWebDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Title of the touch-events flag.
+extern const char kTouchEventsName[];
+
+// Description of the touch-events flag.
+extern const char kTouchEventsDescription[];
+
+// Title of the disable touch adjustment flag.
+extern const char kTouchAdjustmentName[];
+
+// Description of the disable touch adjustment flag.
+extern const char kTouchAdjustmentDescription[];
+
+// Name of the 'Composited layer borders' lab.
+extern const char kCompositedLayerBorders[];
+
+// Description of the 'Composited layer borders' lab.
+extern const char kCompositedLayerBordersDescription[];
+
+// Name of the 'Composited layer borders' lab.
+extern const char kGlCompositedTextureQuadBorders[];
+
+// Description of the 'Composited layer borders' lab.
+extern const char kGlCompositedTextureQuadBordersDescription[];
+
+// Name of the 'Overdraw feedback' lab.
+extern const char kShowOverdrawFeedback[];
+
+// Description of the 'Overdraw feedback' lab.
+extern const char kShowOverdrawFeedbackDescription[];
+
+// Name for the flag that sets partial swap behavior.
+extern const char kUiPartialSwapName[];
+
+// Description for the flag that sets partial swap behavior.
+extern const char kUiPartialSwapDescription[];
+
+// Name of the 'Debugging keyboard shortcuts' lab.
+extern const char kDebugShortcutsName[];
+
+// Name of the 'Ignore GPU blacklist' lab.
+extern const char kIgnoreGpuBlacklistName[];
+
+// Description of the 'Ignore GPU blacklist' lab.
+extern const char kIgnoreGpuBlacklistDescription[];
+
+// Title of the flag to enable the inert visual viewport experiment.
+extern const char kInertVisualViewportName[];
+
+// Description of the flag to enable the inert visual viewport experiment.
+extern const char kInertVisualViewportDescription[];
+
+// Name of the 'Enable experimental canvas features' lab.
+extern const char kExperimentalCanvasFeaturesName[];
+
+// Description of the 'Enable experimental canvas features' lab.
+extern const char kExperimentalCanvasFeaturesDescription[];
+
+// Name of the 'Accelerated 2D canvas' lab.
+extern const char kAccelerated2dCanvasName[];
+
+// Description of the 'Accelerated 2D canvas' lab.
+extern const char kAccelerated2dCanvasDescription[];
+
+// Name of the 'Enable display list 2D canvas' lab.
+extern const char kDisplayList2dCanvasName[];
+
+// Description of the 'Enable display list 2D canvas' lab.
+extern const char kDisplayList2dCanvasDescription[];
+
+// Option that allows canvas 2D contexts to switch from one rendering mode to
+// another on the fly.
+extern const char kEnable2dCanvasDynamicRenderingModeSwitchingName[];
+
+// Description of 'Enable canvas 2D dynamic pipeline switching mode'
+extern const char kEnable2dCanvasDynamicRenderingModeSwitchingDescription[];
+
+// Name of the 'Experimental Extension APIs' lab.
+extern const char kExperimentalExtensionApisName[];
+
+// Description of the 'Experimental Extension APIs' lab.
+extern const char kExperimentalExtensionApisDescription[];
+
+// Name of the 'Extensions on chrome:// URLs' lab
+extern const char kExtensionsOnChromeUrlsName[];
+
+// Description of the 'Extensions on chrome:// URLs' lab
+extern const char kExtensionsOnChromeUrlsDescription[];
+
+// Name of the 'Fast Unload' lab
+extern const char kFastUnloadName[];
+
+// Description of the 'Fast Unload' lab.
+extern const char kFastUnloadDescription[];
+
+// Name of the 'User consent for extension scripts' lab.
+extern const char kUserConsentForExtensionScriptsName[];
+
+// Description of the 'User consent for extension scripts' lab
+extern const char kUserConsentForExtensionScriptsDescription[];
+
+// Name of the flag that requires a user gesture before script can add a histroy
+// entry to the back/forward list.
+extern const char kHistoryRequiresUserGestureName[];
+
+// Description of the flag that requires that a page process a user action
+// (e.g., a mouse click) before script can add an entry to the tab's
+// back/forward list.
+extern const char kHistoryRequiresUserGestureDescription[];
+
+// Name of the 'Disable hyperlink auditing' lab.
+extern const char kHyperlinkAuditingName[];
+
+// Description of the 'Disable hyperlink auditing' lab.
+extern const char kHyperlinkAuditingDescription[];
+
+#if defined(OS_ANDROID)
+
+// Title for the flag to enable Contextual Search.
+extern const char kContextualSearch[];
+
+// Description for the flag to enable Contextual Search.
+extern const char kContextualSearchDescription[];
+
+// Title for the flag to enable Contextual Search integration with Contextual
+// Cards data in the bar.
+extern const char kContextualSearchContextualCardsBarIntegration[];
+
+// Description for the flag to enable Contextual Search integration with
+// Contextual Cards data in the bar.
+extern const char kContextualSearchContextualCardsBarIntegrationDescription[];
+
+// Title for the flag to enable Contextual Search single actions using
+// Contextual Cards data in the bar.
+extern const char kContextualSearchSingleActions[];
+
+// Description for the flag to enable Contextual Search single actions using
+// Contextual Cards data in the bar.
+extern const char kContextualSearchSingleActionsDescription[];
+
+// Title for the flag to enable Contextual Search url actions using Contextual
+// Cards data in the bar.
+extern const char kContextualSearchUrlActions[];
+
+// Description for the flag to enable Contextual Search URL actions using
+// Contextual Cards data in the bar.
+extern const char kContextualSearchUrlActionsDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name of the smooth scrolling flag
+extern const char kSmoothScrollingName[];
+
+// Description of the smooth scrolling flag
+extern const char kSmoothScrollingDescription[];
+
+// Title for the flag to turn on overlay scrollbars
+extern const char kOverlayScrollbarsName[];
+
+// Description for the flag to turn on overlay scrollbars
+extern const char kOverlayScrollbarsDescription[];
+
+// Title for the flag to show Autofill field type predictions for all forms
+extern const char kShowAutofillTypePredictionsName[];
+
+// Description for the flag to show Autofill field type predictions for all
+// forms
+extern const char kShowAutofillTypePredictionsDescription[];
+
+// Name of the flag that enables TCP Fast Open.
+extern const char kTcpFastOpenName[];
+
+// Description of the flag that enables TCP Fast Open.
+extern const char kTcpFastOpenDescription[];
+
+// Name of the flag that enables touch initiated drag drop.
+extern const char kTouchDragDropName[];
+
+// Description of the flag to enable touch initiated drag drop.
+extern const char kTouchDragDropDescription[];
+
+// Name of the flag that controls touch based text selection strategy.
+extern const char kTouchSelectionStrategyName[];
+
+// Description of the flag that controls touch based text selection strategy.
+extern const char kTouchSelectionStrategyDescription[];
+
+// Description for the touch text selection strategy which always uses character
+// granularity.
+extern const char kTouchSelectionStrategyCharacter[];
+
+// Description for the touch text selection strategy which is based on the
+// direction in which the handle is dragged.
+extern const char kTouchSelectionStrategyDirection[];
+
+// Title for the flag to use the Online Wallet sandbox servers (instead of
+// production).
+extern const char kWalletServiceUseSandboxName[];
+
+// Description of the flag to use the Online Wallet sandbox servers.
+extern const char kWalletServiceUseSandboxDescription[];
+
+// Title for the flag for history navigation from horizontal overscroll.
+extern const char kOverscrollHistoryNavigationName[];
+
+// Description for the flag to disable history navigation from horizontal
+// overscroll.
+extern const char kOverscrollHistoryNavigationDescription[];
+
+// Description for the simple UI for history navigation from horizontal
+// overscroll.
+extern const char kOverscrollHistoryNavigationSimpleUi[];
+
+// Title for the flag to specify the threshold for starting horizontal
+// overscroll.
+extern const char kOverscrollStartThresholdName[];
+
+// Description for the flag to specify the threshold for starting horizontal
+// overscroll.
+extern const char kOverscrollStartThresholdDescription[];
+
+// Description for the 133% threshold for starting horizontal overscroll.
+extern const char kOverscrollStartThreshold133Percent[];
+
+// Description for the 166% threshold for starting horizontal overscroll.
+extern const char kOverscrollStartThreshold166Percent[];
+
+// Description for the 200% threshold for starting horizontal overscroll.
+extern const char kOverscrollStartThreshold200Percent[];
+
+// Title for the flag for scroll end effect from vertical overscroll.
+extern const char kScrollEndEffectName[];
+
+// Description for the flag that controls scroll end effect from vertical
+// overscroll.
+extern const char kScrollEndEffectDescription[];
+
+// Name of the 'Enable WebGL 2.0' flag.
+extern const char kWebgl2Name[];
+
+// Description for the flag to enable WebGL 2.0.
+extern const char kWebgl2Description[];
+
+// Name of the 'Enable WebGL Draft Extensions' flag.
+extern const char kWebglDraftExtensionsName[];
+
+// Description for the flag to enable WebGL Draft Extensions.
+extern const char kWebglDraftExtensionsDescription[];
+
+// Name of chrome:flags option to turn off WebRTC hardware video decoding
+// support.
+extern const char kWebrtcHwDecodingName[];
+
+// Description of chrome:flags option to turn off WebRTC hardware video decoding
+// support.
+extern const char kWebrtcHwDecodingDescription[];
+
+// Name of chrome:flags option to turn off WebRTC hardware video encoding
+// support.
+extern const char kWebrtcHwEncodingName[];
+
+// Description of chrome:flags option to turn off WebRTC hardware video encoding
+// support.
+extern const char kWebrtcHwEncodingDescription[];
+
+// Name of chrome:flags option to turn on WebRTC h264 hardware video encoding
+// support.
+extern const char kWebrtcHwH264EncodingName[];
+
+// Description of chrome:flags option to turn on WebRTC hardware h264 video
+// encoding support.
+extern const char kWebrtcHwH264EncodingDescription[];
+
+// Name of chrome:flags option to enable GCM cipher suites for WebRTC
+extern const char kWebrtcSrtpAesGcmName[];
+
+// Description of chrome:flags option to enable GCM cipher suites for WebRTC
+extern const char kWebrtcSrtpAesGcmDescription[];
+
+// Name of chrome:flags option to turn on Origin header for WebRTC STUN messages
+extern const char kWebrtcStunOriginName[];
+
+// Description of chrome:flags option to turn on Origin header for WebRTC STUN
+// messages
+extern const char kWebrtcStunOriginDescription[];
+
+// Name of chrome:flags option to enable WebRTC Echo Canceller 3.
+extern const char kWebrtcEchoCanceller3Name[];
+
+// Description of chrome:flags option to enable WebRTC Echo Canceller 3.
+extern const char kWebrtcEchoCanceller3Description[];
+
+#if defined(OS_ANDROID)
+
+// Name of chrome:flags option to enable screen capture.
+extern const char kMediaScreenCaptureName[];
+
+// Description of chrome:flags option to enable screen capture.
+extern const char kMediaScreenCaptureDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if BUILDFLAG(ENABLE_WEBRTC)
+
+// Name of chrome:flags option to enable WebRTC H.264 sw encoder/decoder
+extern const char kWebrtcH264WithOpenh264FfmpegName[];
+
+// Description of chrome:flags option to enable WebRTC H.264 sw encoder/decoder
+extern const char kWebrtcH264WithOpenh264FfmpegDescription[];
+
+#endif  // BUILDFLAG(ENABLE_WEBRTC)
+
+// Name of the 'Enable WebVR' flag.
+extern const char kWebvrName[];
+
+// Description for the flag to enable WebVR APIs.
+extern const char kWebvrDescription[];
+
+// Name of the 'Enable WebVR experimental optimizations' flag.
+extern const char kWebvrExperimentalRenderingName[];
+
+// Description for the flag to enable experimental WebVR rendering
+// optimizations.
+extern const char kWebvrExperimentalRenderingDescription[];
+
+// Name of the flag which allows users to enable experimental extensions to the
+// Gamepad API.
+extern const char kGamepadExtensionsName[];
+
+// Description for the flag which allows users to enable experimental extensions
+// to the Gamepad API.
+extern const char kGamepadExtensionsDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of about:flags option to turn on the new Photo picker.
+extern const char kNewPhotoPickerName[];
+
+// Description of about:flags option to turn on the new Photo picker.
+extern const char kNewPhotoPickerDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_ANDROID)
+
+// Name of about:flags option to turn on the overscrolling for the OSK.
+extern const char kEnableOskOverscrollName[];
+
+// Description of about:flags option to turn on overscrolling for the OSK.
+extern const char kEnableOskOverscrollDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Title for the flag to enable QUIC.
+extern const char kQuicName[];
+
+// Description for the flag to enable QUIC.
+extern const char kQuicDescription[];
+
+// Title for the flag to switch the maximum TLS version.
+extern const char kSslVersionMaxName[];
+
+// Description for the flag to switch the maximum TLS version.
+extern const char kSslVersionMaxDescription[];
+
+extern const char kSslVersionMaxTls12[];
+
+extern const char kSslVersionMaxTls13[];
+
+// Title for the flag to enable Token Binding. Please do not translate 'Token
+// Binding'.
+extern const char kEnableTokenBindingName[];
+
+// Description for the flag to enable Token Binding. Please do not translate
+// 'Token Binding'.
+extern const char kEnableTokenBindingDescription[];
+
+// Title for the flag for gesture requiment for media playback
+extern const char kGestureRequirementForMediaPlaybackName[];
+
+// Description for the flag for gesture requiment for media playback
+extern const char kGestureRequirementForMediaPlaybackDescription[];
+
+#if !defined(OS_ANDROID)
+
+// Title for the flag for gesture requiment for media playback
+extern const char kCrossOriginMediaPlaybackRequiresUserGestureName[];
+
+// Description for the flag for gesture requiment for media playback
+extern const char kCrossOriginMediaPlaybackRequiresUserGestureDescription[];
+
+#endif  // !defined(OS_ANDROID)
+
+// Description for the flag to adjust the default behaviour for document level
+// passive touch listeners.
+extern const char kPassiveDocumentEventListenersDescription[];
+
+// Name for the flag to adjust the default behaviour for document level passive
+// listeners.
+extern const char kPassiveDocumentEventListenersName[];
+
+// Description for the flag to adjust the default behaviour for passive touch
+// listeners during fling.
+extern const char kPassiveEventListenersDueToFlingDescription[];
+
+// Name for the flag to adjust the default behaviour for passive touch listeners
+// during fling.
+extern const char kPassiveEventListenersDueToFlingName[];
+
+// Choice for passive listeners to default to true on all nodes not explicitly
+// set.
+extern const char kPassiveEventListenerTrue[];
+
+// Choice for passive listeners to default to true on all nodes.
+extern const char kPassiveEventListenerForceAllTrue[];
+
+// Name for the flag to adjust the default behaviour for passive event
+// listeners.
+extern const char kPassiveEventListenerDefaultName[];
+
+// Description for the flag to adjust default behaviour for passive event
+// listeners.
+extern const char kPassiveEventListenerDefaultDescription[];
+
+#if defined(OS_ANDROID)
+
+// Title for the flag for including important sites whitelisting in the clear
+// browsing dialog.
+extern const char kImportantSitesInCbdName[];
+
+// Description for the flag for using important sites whitelisting in the clear
+// browsing dialog.
+extern const char kImportantSitesInCbdDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(USE_ASH)
+
+// Title of the flag which specifies the shelf coloring in Chrome OS system UI.
+extern const char kAshShelfColor[];
+
+// Description of the flag which specifies the shelf coloring in Chrome OS
+// system UI.
+extern const char kAshShelfColorDescription[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorLightVibrant[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorNormalVibrant[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorDarkVibrant[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorLightMuted[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorNormalMuted[];
+
+// A shelf coloring style to be used by Chrome OS UI.
+extern const char kAshShelfColorDarkMuted[];
+
+// Title for the flag which can be used for window backdrops in TouchView.
+extern const char kAshMaximizeModeWindowBackdropName[];
+
+// Description for the flag which can be used for window backdrops in TouchView.
+extern const char kAshMaximizeModeWindowBackdropDescription[];
+
+// Title for the flag which can be used for support for javascript locking
+// rotation.
+extern const char kAshScreenOrientationLockName[];
+
+// Description for the flag which can be used for support for javascript locking
+// rotation
+extern const char kAshScreenOrientationLockDescription[];
+
+// Title for the flag to enable the mirrored screen mode.
+extern const char kAshEnableMirroredScreenName[];
+
+// Description for the flag to enable the mirrored screen mode.
+extern const char kAshEnableMirroredScreenDescription[];
+
+// Description for the flag that sets material design ink drop animation speed
+// of fast.
+extern const char kMaterialDesignInkDropAnimationFast[];
+
+// Description for the flag that sets material design ink drop anation speeds of
+// slow.
+extern const char kMaterialDesignInkDropAnimationSlow[];
+
+// Name for the flag that sets the material design ink drop animation speed.
+extern const char kMaterialDesignInkDropAnimationSpeedName[];
+
+// Description for the flag that sets the material design ink drop animtion
+// speed.
+extern const char kMaterialDesignInkDropAnimationSpeedDescription[];
+
+// Name for the flag that enables slow UI animations.
+extern const char kUiSlowAnimationsName[];
+
+// Description for the flag that enables slow UI animations.
+extern const char kUiSlowAnimationsDescription[];
+
+#endif  // defined(USE_ASH)
+
+// Title for the flag for latest (non-experimental) JavaScript fatures
+extern const char kJavascriptHarmonyShippingName[];
+
+// Description for the flag for latest (non-experimental) JavaScript fatures
+extern const char kJavascriptHarmonyShippingDescription[];
+
+// Title for the flag to enable JavaScript Harmony features.
+extern const char kJavascriptHarmonyName[];
+
+// Description for the flag to enable JavaScript Harmony features.
+extern const char kJavascriptHarmonyDescription[];
+
+// Title for the flag to enable future features in V8.
+extern const char kV8FutureName[];
+
+// Description for the flag to enable future features in V8.
+extern const char kV8FutureDescription[];
+
+// Title for disabling the Ignition and TurboFan compilation pipeline in V8.
+extern const char kV8DisableIgnitionTurboName[];
+
+// Description for disabling the Ignition and TurboFan compilation pipeline in
+// V8.
+extern const char kV8DisableIgnitionTurboDescription[];
+
+// Title for the flag to enable Asm.js to WebAssembly.
+extern const char kEnableAsmWasmName[];
+
+// Description for the flag to enable Asm.js to WebAssembly.
+extern const char kEnableAsmWasmDescription[];
+
+// Title for the flag to enable SharedArrayBuffers in JavaScript.
+extern const char kEnableSharedArrayBufferName[];
+
+// Description for the flag to enable SharedArrayBuffers in JavaScript.
+extern const char kEnableSharedArrayBufferDescription[];
+
+// Title for the flag to enable WebAssembly structured cloning.
+extern const char kEnableWasmName[];
+
+// Description for the flag to enable WebAssembly.
+extern const char kEnableWasmDescription[];
+
+#if defined(OS_ANDROID)
+
+// Title for the flag to enable the download button on MediaDocument.
+extern const char kMediaDocumentDownloadButtonName[];
+
+// Description for the flag to enable download button on MediaDocument.
+extern const char kMediaDocumentDownloadButtonDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Title for the flag for using a software rasterizer.
+extern const char kSoftwareRasterizerName[];
+
+// Description for the flag for using a software renderer.
+extern const char kSoftwareRasterizerDescription[];
+
+// Title for the flag to enable GPU rasterization.
+extern const char kGpuRasterizationName[];
+
+// Description for the flag to enable GPU rasterizer.
+extern const char kGpuRasterizationDescription[];
+
+// Description of the 'Force GPU rasterization' experiment
+extern const char kForceGpuRasterization[];
+
+// Name of about:flags option for number of GPU rasterization MSAA samples.
+extern const char kGpuRasterizationMsaaSampleCountName[];
+
+// Description of about:flags option for number of GPU rasterization MSAA
+// samples.
+extern const char kGpuRasterizationMsaaSampleCountDescription[];
+
+extern const char kGpuRasterizationMsaaSampleCountZero[];
+
+extern const char kGpuRasterizationMsaaSampleCountTwo[];
+
+extern const char kGpuRasterizationMsaaSampleCountFour[];
+
+extern const char kGpuRasterizationMsaaSampleCountEight[];
+
+extern const char kGpuRasterizationMsaaSampleCountSixteen[];
+
+// Title for about:flags option for slimming paint invalidation.
+extern const char kSlimmingPaintInvalidationName[];
+
+// Description of about:flags option for slimming paint invalidation.
+extern const char kSlimmingPaintInvalidationDescription[];
+
+// Name for the flag to enable experimental security features.
+extern const char kExperimentalSecurityFeaturesName[];
+
+// Description for the flag to enable experimental security features.
+extern const char kExperimentalSecurityFeaturesDescription[];
+
+// Name for the flag to enable experimental Web Platform features.
+extern const char kExperimentalWebPlatformFeaturesName[];
+
+// Description for the flag to enable experimental Web Platform features.
+extern const char kExperimentalWebPlatformFeaturesDescription[];
+
+// Name for the flag to enable pointer events.
+extern const char kExperimentalPointerEventName[];
+
+// Description for the flag to enable pointer events.
+extern const char kExperimentalPointerEventDescription[];
+
+// Name for the flag to enable origin trials.
+extern const char kOriginTrialsName[];
+
+// Description for the flag to enable origin trials.
+extern const char kOriginTrialsDescription[];
+
+// Name for the flag for BLE Advertising
+extern const char kBleAdvertisingInExtensionsName[];
+
+// Description of the flag to enable BLE Advertising
+extern const char kBleAdvertisingInExtensionsDescription[];
+
+// Name for the flag to enable experiments in Developer Tools
+extern const char kDevtoolsExperimentsName[];
+
+// Description for the flag to enable experiments in Developer Tools.
+extern const char kDevtoolsExperimentsDescription[];
+
+// Name for the flag to enable silent debugging via chrome.debugger extension
+// API.
+extern const char kSilentDebuggerExtensionApiName[];
+
+// Description for the flag to enable silent debugging via chrome.debugger
+// extension API.
+extern const char kSilentDebuggerExtensionApiDescription[];
+
+// Name for the flag to show a heads-up display for tracking touch-points.
+extern const char kShowTouchHudName[];
+
+// Description for the flag to show a heads-up display for tracking
+// touch-points.
+extern const char kShowTouchHudDescription[];
+
+// Name for the Prefer HTML over Plugins feature.
+extern const char kPreferHtmlOverPluginsName[];
+
+// Description for the Prefer HTML over Plugins feature.
+extern const char kPreferHtmlOverPluginsDescription[];
+
+// Name for the NaCl Socket API feature.
+extern const char kAllowNaclSocketApiName[];
+
+// Description for the NaCl Socket API feature.
+extern const char kAllowNaclSocketApiDescription[];
+
+// Name for the Run all Flash in Allow mode feature.
+extern const char kRunAllFlashInAllowModeName[];
+
+// Description for the Run all Flash in Allow mode feature.
+extern const char kRunAllFlashInAllowModeDescription[];
+
+// Name of the flag to turn on experiental pinch to scale.
+extern const char kPinchScaleName[];
+
+// Description of the flag to turn on experiental pinch to scale.
+extern const char kPinchScaleDescription[];
+
+// Name for the flag to enable 'navigator.credentials'.
+extern const char kCredentialManagerApiName[];
+
+// Description for the flag to enable 'navigator.credentials'.
+extern const char kCredentialManagerApiDescription[];
+
+// Name for the flag to reduce referer granularity.
+extern const char kReducedReferrerGranularityName[];
+
+// Description for the flag to reduce referer granularity.
+extern const char kReducedReferrerGranularityDescription[];
+
+#if defined(OS_CHROMEOS)
+
+// Name for the flag to enable the new UI service.
+extern const char kUseMashName[];
+
+// Description for the flag to enable the new UI service.
+extern const char kUseMashDescription[];
+
+// Name for the flag to enable touchpad three finger click as middle button.
+extern const char kAllowTouchpadThreeFingerClickName[];
+
+// Description for the flag to enable touchpad three finger click as middle
+// button.
+extern const char kAllowTouchpadThreeFingerClickDescription[];
+
+// Name for the flag to enable unified desktop mode.
+extern const char kAshEnableUnifiedDesktopName[];
+
+// Description for the flag to enable unified desktop mode.
+extern const char kAshEnableUnifiedDesktopDescription[];
+
+// Name for the flag for wallpaper boot animation (except for OOBE).
+extern const char kBootAnimation[];
+
+// Description for the flag for wallpaper boot animation (except for OOBE).
+extern const char kBootAnimationDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+// Name of the flag for accelerated video decode where available.
+extern const char kAcceleratedVideoDecodeName[];
+
+// Description for the flag for accelerated video decode where available.
+extern const char kAcceleratedVideoDecodeDescription[];
+
+// Name for the flag for cloud import feature.
+extern const char kCloudImport[];
+
+// Description for the flag for cloud import.
+extern const char kCloudImportDescription[];
+
+// Name for the flag to set to enable Request Tablet Site in the wrench menu.
+extern const char kRequestTabletSiteName[];
+
+// Description for the flag to set to enable Request Tablet Site in the wrench
+// menu.
+extern const char kRequestTabletSiteDescription[];
+
+// Name of the flag to enable debugging context menu options for packed apps.
+extern const char kDebugPackedAppName[];
+
+// Description of the flag to enable debugging context menu options for packed
+// apps.
+extern const char kDebugPackedAppDescription[];
+
+// Name of the flag to enable drop sync credential
+extern const char kDropSyncCredentialName[];
+
+// Description of the flag to enable drop sync credential
+extern const char kDropSyncCredentialDescription[];
+
+// Name of the flag to enable password generation.
+extern const char kPasswordGenerationName[];
+
+// Description of flag to enable password generation.
+extern const char kPasswordGenerationDescription[];
+
+// Name of the flag for the password manager's force-saving option.
+extern const char kPasswordForceSavingName[];
+
+// Description of the flag for the password manager's force-saving option.
+extern const char kPasswordForceSavingDescription[];
+
+// Name of the flag for manual password generation.
+extern const char kManualPasswordGenerationName[];
+
+// Description of the flag for manual password generation.
+extern const char kManualPasswordGenerationDescription[];
+
+// Name of the flag to show autofill signatures.
+extern const char kShowAutofillSignatures[];
+
+// Description of the flag to show autofill signatures.
+extern const char kShowAutofillSignaturesDescription[];
+
+// Name of the flag for substring matching for Autofill suggestions.
+extern const char kSuggestionsWithSubStringMatchName[];
+
+// Description of the flag for substring matching for Autofill suggestions.
+extern const char kSuggestionsWithSubStringMatchDescription[];
+
+// Name of the flag to enable affiliation based matching, so that credentials
+// stored for an Android application will also be considered matches for, and be
+// filled into corresponding websites (so-called 'affiliated' websites).
+extern const char kAffiliationBasedMatchingName[];
+
+// Description of the flag to enable affiliation based matching, so that
+// credentials stored for an Android application will also be considered matches
+// for, and be filled into corresponding websites (so-called 'affiliated'
+// websites).
+extern const char kAffiliationBasedMatchingDescription[];
+
+// Name of the flag specifying how the browser will handle autofilling the users
+// sync credential.
+extern const char kProtectSyncCredentialName[];
+
+// Description of the flag specifying how the browser will handle autofilling
+// the users sync credential.
+extern const char kProtectSyncCredentialDescription[];
+
+// Name of the flag for showing the Import and Export buttons for importing and
+// exporting passwords in Chrome's settings.
+extern const char kPasswordImportExportName[];
+
+// Description of the flag for showing the Import and Export buttons for
+// importing and exporting passwords in Chrome's settings.
+extern const char kPasswordImportExportDescription[];
+
+// Name of the flag specifying how the browser will handle autofilling the users
+// sync credential.
+extern const char kProtectSyncCredentialOnReauthName[];
+
+// Description of the flag specifying how the browser will handle autofilling of
+// the sync credential only for transactional reauth pages.
+extern const char kProtectSyncCredentialOnReauthDescription[];
+
+// Name of the flag to enable large icons on the NTP.
+extern const char kIconNtpName[];
+
+// Description for the flag to enable large icons on the NTP.
+extern const char kIconNtpDescription[];
+
+// Name of the flag to enable background mode for the Push API.
+extern const char kPushApiBackgroundModeName[];
+
+// Description for the flag to enable background mode for the Push API.
+extern const char kPushApiBackgroundModeDescription[];
+
+// Name of the flag to enable navigation tracing
+extern const char kEnableNavigationTracing[];
+
+// Description of the flag to enable navigation tracing
+extern const char kEnableNavigationTracingDescription[];
+
+// Name of the flag to set the trace upload url
+extern const char kTraceUploadUrl[];
+
+// Description of the flag to set the trace upload url
+extern const char kTraceUploadUrlDescription[];
+
+// Title for the flag to disable Audio Sharing.
+extern const char kDisableAudioForDesktopShare[];
+
+// Description for the flag to disable Audio Sharing.
+extern const char kDisableAudioForDesktopShareDescription[];
+
+// Title for the flag to disable tab for desktop share.
+extern const char kDisableTabForDesktopShare[];
+
+// Description for the flag to disable tab for desktop share.
+extern const char kDisableTabForDesktopShareDescription[];
+
+extern const char kTraceUploadUrlChoiceOther[];
+
+extern const char kTraceUploadUrlChoiceEmloading[];
+
+extern const char kTraceUploadUrlChoiceQa[];
+
+extern const char kTraceUploadUrlChoiceTesting[];
+
+// Name of the flag to enable the managed bookmarks folder for supervised users.
+extern const char kSupervisedUserManagedBookmarksFolderName[];
+
+// Description for the flag to enable the managed bookmarks folder for
+// supervised users.
+extern const char kSupervisedUserManagedBookmarksFolderDescription[];
+
+// Name of the flag to enable syncing the app list.
+extern const char kSyncAppListName[];
+
+// Description for the flag to enable syncing the app list.
+extern const char kSyncAppListDescription[];
+
+// Name of the flag for drive search in chrome launcher.
+extern const char kDriveSearchInChromeLauncher[];
+
+// Description for the flag for drive search in chrome launcher.
+extern const char kDriveSearchInChromeLauncherDescription[];
+
+// Name of the about::flags setting for V8 cache options. The V8 JavaScript
+// engine supports three caching modes: disabled; parser; code. This is the
+// option to choose among them.
+extern const char kV8CacheOptionsName[];
+
+// Description of the about::flags setting for V8 cache options. The V8
+// JavaScript engine supports three caching modes: disabled; parser; code.
+extern const char kV8CacheOptionsDescription[];
+
+// The V8 JavaScript engine supports three 'caching' modes: disabled; caching
+// data generated by the JavaScript parser; or caching data generated by the
+// JavaScript compiler. This option describes the 2nd of these, caching data
+// generated by the parser.
+extern const char kV8CacheOptionsParse[];
+
+// The V8 JavaScript engine supports three 'caching' modes: disabled; caching
+// data generated by the JavaScript parser; or caching data generated by the
+// JavaScript compiler. This option describes the 3rd of these, caching data
+// generated by the compiler.
+extern const char kV8CacheOptionsCode[];
+
+// Name of the about::flags setting for V8 cache strategies for CacheStorage.
+// The V8 cache for CacheStorage supports three strategies: disabled; normal;
+// aggressive. This is the option to choose among them.
+extern const char kV8CacheStrategiesForCacheStorageName[];
+
+// Description of the about::flags setting for V8 cache strategies for
+// CacheStorage. The V8 cache for CacheStorage supports three strategies:
+// disabled; normal; aggressive.
+extern const char kV8CacheStrategiesForCacheStorageDescription[];
+
+// The V8 cache for CacheStorage supports three strategies: disabled; caching
+// same as if the script is in HTTPCache; force caching on the first load. This
+// option describes the 2nd of these, caching same as if the script is in
+// HTTPCache.
+extern const char kV8CacheStrategiesForCacheStorageNormal[];
+
+// The V8 cache for CacheStorage supports three strategies: disabled; caching
+// same as if the script is in HTTPCache; force caching on the first load. This
+// option describes the 3rd of these, force caching on the first load.
+extern const char kV8CacheStrategiesForCacheStorageAggressive[];
+
+// Name of the about::flags setting for speculative launch of service workers.
+extern const char kSpeculativeLaunchServiceWorkerName[];
+
+// Description of the about::flags setting for speculative launch of service
+// workers.
+extern const char kSpeculativeLaunchServiceWorkerDescription[];
+
+// An about::flags experiment title to enable/disable memory coordinator
+extern const char kMemoryCoordinatorName[];
+
+// Description of an about::flags to enable/disable memory coordinator
+extern const char kMemoryCoordinatorDescription[];
+
+// Name of the about::flags setting for service worker navigation preload.
+extern const char kServiceWorkerNavigationPreloadName[];
+
+// Description of the about::flags setting for service worker navigation
+// preload.
+extern const char kServiceWorkerNavigationPreloadDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of chrome:flags option to use the JobScheduler API for uploading crash
+// reports.
+extern const char kUploadCrashReportsUsingJobSchedulerName[];
+
+// Description of chrome:flags option to use the JobScheduler API for uploading
+// crash reports.
+extern const char kUploadCrashReportsUsingJobSchedulerDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Data Reduction Proxy
+
+// An about:flags experiment title to enable/disable Data Saver Lo-Fi
+extern const char kDataReductionProxyLoFiName[];
+
+// Describes an about:flags experiment to enable/disable Data Saver Lo-Fi
+extern const char kDataReductionProxyLoFiDescription[];
+
+// Option for IDS_FLAGS_DATA_REDUCTION_PROXY_LO_FI_NAME to enable Lo-Fi always
+// on
+extern const char kDataReductionProxyLoFiAlwaysOn[];
+
+// Option for IDS_FLAGS_DATA_REDUCTION_PROXY_LO_FI_NAME to enable Lo-Fi only on
+// celluar connections
+extern const char kDataReductionProxyLoFiCellularOnly[];
+
+// Option for IDS_FLAGS_DATA_REDUCTION_PROXY_LO_FI_NAME to disable Lo-Fi
+extern const char kDataReductionProxyLoFiDisabled[];
+
+// Option for IDS_FLAGS_DATA_REDUCTION_PROXY_LO_FI_NAME to enable Lo-Fi only on
+// slow connections
+extern const char kDataReductionProxyLoFiSlowConnectionsOnly[];
+
+// An about:flags experiment title to enable Data Saver lite pages
+extern const char kEnableDataReductionProxyLitePageName[];
+
+// Describes an about:flags experiment to enable Data Saver lite pages
+extern const char kEnableDataReductionProxyLitePageDescription[];
+
+// An about:flags experiment title to enable using the carrier test data
+// reduction proxy
+extern const char kDataReductionProxyCarrierTestName[];
+
+// Describes an about:flags experiment to enable using the carrier test data
+// reduction proxy
+extern const char kDataReductionProxyCarrierTestDescription[];
+
+// An about:flags experiment title to enable a Data Saver snackbar promo for 1
+// MB of savings
+extern const char kEnableDataReductionProxySavingsPromoName[];
+
+// Describes an about:flags experiment to enable a Data Saver snackbar promo for
+// 1 MB of savings
+extern const char kEnableDataReductionProxySavingsPromoDescription[];
+
+// Name of about:flags option for LCD text.
+extern const char kLcdTextName[];
+
+// Description of about:flags option for LCD text.
+extern const char kLcdTextDescription[];
+
+// Name of about:flags option for distance field text.
+extern const char kDistanceFieldTextName[];
+
+// Description of about:flags option for distance field text.
+extern const char kDistanceFieldTextDescription[];
+
+// Name of about:flags option for zero-copy rasterizer.
+extern const char kZeroCopyName[];
+
+// Description of about:flags option for zero-copy rasterizer.
+extern const char kZeroCopyDescription[];
+
+extern const char kHideInactiveStackedTabCloseButtonsName[];
+
+extern const char kHideInactiveStackedTabCloseButtonsDescription[];
+
+// Name of about:flags option for default tile width.
+extern const char kDefaultTileWidthName[];
+
+// Description of about:flags option for default tile width.
+extern const char kDefaultTileWidthDescription[];
+
+extern const char kDefaultTileWidthShort[];
+
+extern const char kDefaultTileWidthTall[];
+
+extern const char kDefaultTileWidthGrande[];
+
+extern const char kDefaultTileWidthVenti[];
+
+// Name of about:flags option for default tile height.
+extern const char kDefaultTileHeightName[];
+
+// Description of about:flags option for default tile height.
+extern const char kDefaultTileHeightDescription[];
+
+extern const char kDefaultTileHeightShort[];
+
+extern const char kDefaultTileHeightTall[];
+
+extern const char kDefaultTileHeightGrande[];
+
+extern const char kDefaultTileHeightVenti[];
+
+// Name of about:flags option for number of raster threads.
+extern const char kNumRasterThreadsName[];
+
+// Description of about:flags option for number of raster threads.
+extern const char kNumRasterThreadsDescription[];
+
+extern const char kNumRasterThreadsOne[];
+
+extern const char kNumRasterThreadsTwo[];
+
+extern const char kNumRasterThreadsThree[];
+
+extern const char kNumRasterThreadsFour[];
+
+// Name of the flag to reset the app launcher install state.
+extern const char kResetAppListInstallStateName[];
+
+// Description of the flag to reset the app launcher install state.
+extern const char kResetAppListInstallStateDescription[];
+
+#if defined(OS_CHROMEOS)
+
+// Name of the flag to enable animated transitions for the first-run tutorial.
+extern const char kFirstRunUiTransitionsName[];
+
+// Description for the flag to enable animated transition in the first-run
+// tutorial.
+extern const char kFirstRunUiTransitionsDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+// Name of the flag to enable the new bookmark app system.
+extern const char kNewBookmarkAppsName[];
+
+// Description for the flag to enable the new bookmark app system.
+extern const char kNewBookmarkAppsDescription[];
+
+#if defined(OS_MACOSX)
+
+// Name of the flag to allow hosted apps opening in windows.
+extern const char kHostedAppsInWindowsName[];
+
+// Description for the flag to allow hosted apps opening in windows
+extern const char kHostedAppsInWindowsDescription[];
+
+// Name of the flag to allow tabs detaching in fullscreen on Mac.
+extern const char kTabDetachingInFullscreenName[];
+
+// Description for the flag to allow tabs detaching in fullscreen on Mac
+extern const char kTabDetachingInFullscreenDescription[];
+
+// Name of the flag to reveal the fullscreen toolbar for tab strip changes
+extern const char kFullscreenToolbarRevealName[];
+
+// Description of the flag to reveal the fullscreen toolbar for tab strip
+// changes
+extern const char kFullscreenToolbarRevealDescription[];
+
+// Name of the flag to enable keyboard focus for the tab strip
+extern const char kTabStripKeyboardFocusName[];
+
+// Description of the flag to enable keyboard focus for the tab strip
+extern const char kTabStripKeyboardFocusDescription[];
+
+#endif  // defined(OS_MACOSX)
+
+// Name of the flag to enable creation of app shims for hosted apps on Mac.
+extern const char kHostedAppShimCreationName[];
+
+// Description for the flag to enable creation of app shims for hosted apps on
+// Mac.
+extern const char kHostedAppShimCreationDescription[];
+
+// Name of the flag to enable a notification when quitting with hosted apps.
+extern const char kHostedAppQuitNotificationName[];
+
+// Description for the flag to enable a notification when quitting with hosted
+// apps.
+extern const char kHostedAppQuitNotificationDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag for the pull-to-refresh effect.
+extern const char kPullToRefreshEffectName[];
+
+// Description of the flag for the pull-to-refresh effect.
+extern const char kPullToRefreshEffectDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_MACOSX)
+
+// Name of the flag to enable the new Translate UX.
+extern const char kTranslateNewUxName[];
+
+// Description for the flag to enable the new Translate UX.
+extern const char kTranslateNewUxDescription[];
+
+#endif  // defined(OS_MACOSX)
+
+// Name of the flag to enable the Translate 2016Q2 UI.
+extern const char kTranslate2016q2UiName[];
+
+// Description for the flag to enable the Translate 2016Q2 UI.
+extern const char kTranslate2016q2UiDescription[];
+
+// Name of the flag to enable the Translate Language by ULP.
+extern const char kTranslateLanguageByUlpName[];
+
+// Description for the flag to enable the Translate Language by ULP.
+extern const char kTranslateLanguageByUlpDescription[];
+
+// Name of about:flags option for rect-based targeting in views
+extern const char kViewsRectBasedTargetingName[];
+
+// Description of about:flags option for rect-based targeting in views
+extern const char kViewsRectBasedTargetingDescription[];
+
+// Title for the flag to enable permission action reporting to safe browsing
+// servers.
+extern const char kPermissionActionReportingName[];
+
+// Description for the flag to enable permission action reporting to safe
+// browsing servers
+extern const char kPermissionActionReportingDescription[];
+
+// Title for the flag to enable the permissions blacklist.
+extern const char kPermissionsBlacklistName[];
+
+// Description for the flag to enable the permissions blacklist.
+extern const char kPermissionsBlacklistDescription[];
+
+// Title for the flag for threaded scrolling.
+extern const char kThreadedScrollingName[];
+
+// Description for the flag for threaded scrolling.
+extern const char kThreadedScrollingDescription[];
+
+// Name of the about:flags HarfBuzz RenderText experiment.
+extern const char kHarfbuzzRendertextName[];
+
+// Description of the about:flags HarfBuzz RenderText experiment.
+extern const char kHarfbuzzRendertextDescription[];
+
+// Name of the flag that enables embedding extension options in
+// chrome://extensions.
+extern const char kEmbeddedExtensionOptionsName[];
+
+// Description of the flag that enables embedding extension options in
+// chrome://extensions.
+extern const char kEmbeddedExtensionOptionsDescription[];
+
+// Name of the flag that enables the tab audio muting UI experiment in
+// chrome://extensions.
+extern const char kTabAudioMutingName[];
+
+// Description of the flag that enables the tab audio muting UI experiment in
+// chrome://extensions.
+extern const char kTabAudioMutingDescription[];
+
+// Title for the flag to enable Smart Lock to discover phones over Bluetooth Low
+// Energy in order to unlock the Chromebook.
+extern const char kEasyUnlockBluetoothLowEnergyDiscoveryName[];
+
+// Description for the flag for Smart Lock to discover phones over Bluetooth Low
+// Energy in order to unlock the Chromebook.
+extern const char kEasyUnlockBluetoothLowEnergyDiscoveryDescription[];
+
+// Title for the flag to enable Smart Lock to require close proximity between
+// the phone and the Chromebook in order to unlock the Chromebook.
+extern const char kEasyUnlockProximityDetectionName[];
+
+// Description for the flag that enables Smart Lock to require close proximity
+// between the phone and the Chromebook in order to unlock the Chromebook.
+extern const char kEasyUnlockProximityDetectionDescription[];
+
+// Title for the flag to enable WiFi credential sync, a feature which enables
+// synchronizing WiFi network settings across devices.
+extern const char kWifiCredentialSyncName[];
+
+// Decription for the flag to enable WiFi credential sync, a feature which
+// enables synchronizing WiFi network settings across devices.
+extern const char kWifiCredentialSyncDescription[];
+
+// Name for the flag that causes Chrome to use the sandbox (testing) server for
+// Sync.
+extern const char kSyncSandboxName[];
+
+// Description for the flag that causes Chrome to use the sandbox (testing)
+// server for Sync.
+extern const char kSyncSandboxDescription[];
+
+// Title for the flag to enable a prompt to install Data Saver when a cellular
+// network is detected.
+extern const char kDatasaverPromptName[];
+
+// Decription for the flag to enable a prompt to install Data Saver when a
+// cellular network is detected.
+extern const char kDatasaverPromptDescription[];
+
+// The value of the Data Saver prompt flag which always shows prompt on network
+// properties change.
+extern const char kDatasaverPromptDemoMode[];
+
+// Description for the flag to disable the unified media pipeline on Android.
+extern const char kDisableUnifiedMediaPipelineDescription[];
+
+// Title for the flag to enable support for trying supported channel layouts.
+extern const char kTrySupportedChannelLayoutsName[];
+
+// Description for the flag to enable support for trying supported channel
+// layouts.
+extern const char kTrySupportedChannelLayoutsDescription[];
+
+#if defined(OS_MACOSX)
+
+// Name of the flag to enable or disable the toolkit-views App Info dialog on
+// Mac.
+extern const char kAppInfoDialogName[];
+
+// Description of flag to enable or disable the toolkit-views App Info dialog on
+// Mac.
+extern const char kAppInfoDialogDescription[];
+
+// Name of the flag to enable or disable toolkit-views Chrome App windows on
+// Mac.
+extern const char kMacViewsNativeAppWindowsName[];
+
+// Description of flag to enable or disable toolkit-views Chrome App windows on
+// Mac.
+extern const char kMacViewsNativeAppWindowsDescription[];
+
+// Name of the flag to enable or disable the toolkit-views Task Manager on Mac.
+extern const char kMacViewsTaskManagerName[];
+
+// Description of the flag to enable or disable the toolkit-views Task Manager
+// on Mac.
+extern const char kMacViewsTaskManagerDescription[];
+
+// Name of the flag to enable or disable custom Cmd+` App window cycling on Mac.
+extern const char kAppWindowCyclingName[];
+
+// Description of flag to enable or disable custom Cmd+` App window cycling on
+// Mac.
+extern const char kAppWindowCyclingDescription[];
+
+#endif  // defined(OS_MACOSX)
+
+#if defined(OS_CHROMEOS)
+
+// Name of the flag to enable accelerated mjpeg decode for captured frame where
+// available.
+extern const char kAcceleratedMjpegDecodeName[];
+
+// Description for the flag to enable accelerated mjpeg decode for captured
+// frame where available.
+extern const char kAcceleratedMjpegDecodeDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+// Name of the flag to enable the new simplified fullscreen and mouse lock UI.
+extern const char kSimplifiedFullscreenUiName[];
+
+// Description of the flag to enable the new simplified full screen and mouse
+// lock UI.
+extern const char kSimplifiedFullscreenUiDescription[];
+
+// Name of the flag to enable the experimental prototype for full screen with
+// keyboard lock.
+extern const char kExperimentalKeyboardLockUiName[];
+
+// Description of the flag to enable the experimental full screen keyboard lock
+// UI.
+extern const char kExperimentalKeyboardLockUiDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag to configure Android page loading progress bar animation.
+extern const char kProgressBarAnimationName[];
+
+// Description of the flag to configure Android page loading progress bar
+// animation.
+extern const char kProgressBarAnimationDescription[];
+
+// Linear progress bar animation style
+extern const char kProgressBarAnimationLinear[];
+
+// Smooth progress bar animation style
+extern const char kProgressBarAnimationSmooth[];
+
+// Smooth progress bar animation style with an indeterminate animation
+extern const char kProgressBarAnimationSmoothIndeterminate[];
+
+// Fast start progress bar animation style
+extern const char kProgressBarAnimationFastStart[];
+
+// Name of the flag to set when Android's page load progress bar completes.
+extern const char kProgressBarCompletionName[];
+
+// Description of the flag to set when Android's page load progress bar
+// completes.
+extern const char kProgressBarCompletionDescription[];
+
+// Complete when the load event completes
+extern const char kProgressBarCompletionLoadEvent[];
+
+// Complete when domContentLoaded and any resources loaded started before
+// domContentLoaded are done
+extern const char kProgressBarCompletionResourcesBeforeDcl[];
+
+// Complete when domContentLoaded is done
+extern const char kProgressBarCompletionDomContentLoaded[];
+
+// Complete when domContentLoaded and any resources loaded started before
+// domContentLoaded, plus the same for same origin iframes
+extern const char
+    kProgressBarCompletionResourcesBeforeDclAndSameOriginIframes[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name of the flag to disallow fetch of scripts inserted into the main frame by
+// document.write.
+extern const char kDisallowDocWrittenScriptsUiName[];
+
+// Description of the flag to disallow fetch of scripts inserted into the main
+// frame by document.write.
+extern const char kDisallowDocWrittenScriptsUiDescription[];
+
+#if defined(OS_WIN)
+
+// Name of the flag to enable AppContainer lockdown experiment.
+extern const char kEnableAppcontainerName[];
+
+// Description of the flag to enable AppContainer lockdown experiment.
+extern const char kEnableAppcontainerDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(TOOLKIT_VIEWS) || defined(OS_ANDROID)
+
+// Name of the flag to enable uploading Autofill credit cards.
+extern const char kAutofillCreditCardUploadName[];
+
+// Description of the flag to enable uploading Autofill credit cards.
+extern const char kAutofillCreditCardUploadDescription[];
+
+#endif  // defined(TOOLKIT_VIEWS) || defined(OS_ANDROID)
+
+// Name for the flag to force a specific UI direction.
+extern const char kForceUiDirectionName[];
+
+// Description for the flag to force a specific UI direction.
+extern const char kForceUiDirectionDescription[];
+
+// Name for the option to force left-to-right UI direction mode.
+extern const char kForceUiDirectionLtr[];
+
+// Name for the option to force right-to-left UI direction mode.
+extern const char kForceUiDirectionRtl[];
+
+#if defined(OS_WIN) || defined(OS_LINUX)
+
+// Name of the flag to enable che chrome.input.ime API.
+extern const char kEnableInputImeApiName[];
+
+// Description of the flag to enable the chrome.input.ime API.
+extern const char kEnableInputImeApiDescription[];
+
+#endif  // defined(OS_WIN) || defined(OS_LINUX)
+
+// Enables grouping websites by domain on chrome://history.
+extern const char kEnableGroupedHistoryName[];
+
+// Description of the 'group by domain' feature on chrome://history
+extern const char kEnableGroupedHistoryDescription[];
+
+extern const char kSecurityChipDefault[];
+
+extern const char kSecurityChipShowNonsecureOnly[];
+
+extern const char kSecurityChipShowAll[];
+
+extern const char kSecurityChipAnimationDefault[];
+
+extern const char kSecurityChipAnimationNone[];
+
+extern const char kSecurityChipAnimationNonsecureOnly[];
+
+extern const char kSecurityChipAnimationAll[];
+
+// Name of the flag to enable switching of 'Save as' menu label to 'Download'.
+extern const char kSaveasMenuLabelExperimentName[];
+
+// Description of the flag to enable switching of 'Save as' menu label to
+// 'Download'.
+extern const char kSaveasMenuLabelExperimentDescription[];
+
+// Name of the flag to experimentally enable enumerating audio devices on
+// ChromeOS.
+extern const char kEnableEnumeratingAudioDevicesName[];
+
+// Description of the flag that experimentally enables enumerating audio devices
+// on ChromeOS.
+extern const char kEnableEnumeratingAudioDevicesDescription[];
+
+// Name of the flag to enable the new USB backend.
+extern const char kNewUsbBackendName[];
+
+// Description of the flag to enable the new USB backend.
+extern const char kNewUsbBackendDescription[];
+
+// Name of the flag to enable the new answers in suggest types in the omnibox.
+extern const char kNewOmniboxAnswerTypesName[];
+
+// Description of the flag to enable the new answers in suggest types in the
+// omnibox.
+extern const char kNewOmniboxAnswerTypesDescription[];
+
+// Name of the flag option to enable the redirect of omnibox zero suggest
+// requests to a backend maintained by Chrome.
+extern const char kEnableZeroSuggestRedirectToChromeName[];
+
+// Description of the flag option to enable the redirect of omnibox zero suggest
+// requests to a backend maintained by Chrome.
+extern const char kEnableZeroSuggestRedirectToChromeDescription[];
+
+// Name of the experiment for the password manager to fill on account selection
+// rather than page load
+extern const char kFillOnAccountSelectName[];
+
+// Description of the experiment for the password manager to fill on account
+// selection rather than page load
+extern const char kFillOnAccountSelectDescription[];
+
+// Name of the flag that enables the data volume counters in the Clear browsing
+// data dialog.
+extern const char kEnableClearBrowsingDataCountersName[];
+
+// Description of the flag that enables the data volume counters in the Clear
+// browsing data dialog.
+extern const char kEnableClearBrowsingDataCountersDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag to enable a tabbed version of the Clear Browsing Data dialog
+// in android.
+extern const char kTabsInCbdName[];
+
+// Description of the flag that enables a tabbed version of the Clear Browsing
+// Data dialog.
+extern const char kTabsInCbdDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name of the flag to enable native notifications.
+extern const char kNotificationsNativeFlag[];
+
+// Description of the flag to enable native notifications.
+extern const char kNotificationsNativeFlagDescription[];
+
+#if defined(OS_ANDROID)
+
+// The description for the flag to enable use of the Android spellchecker.
+extern const char kEnableAndroidSpellcheckerDescription[];
+
+// The name of the flag to enable use of the Android spellchecker.
+extern const char kEnableAndroidSpellcheckerName[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name of the flag to enable custom layouts for Web Notifications.
+extern const char kEnableWebNotificationCustomLayoutsName[];
+
+// Description for the flag to enable custom layouts for Web Notifications.
+extern const char kEnableWebNotificationCustomLayoutsDescription[];
+
+// Title for the flag for account consistency between browser and cookie jar.
+extern const char kAccountConsistencyName[];
+
+// Description for the flag for account consistency between browser and cookie
+// jar.
+extern const char kAccountConsistencyDescription[];
+
+// Title for the flag to enable the new gaia password-separated sign in flow.
+extern const char kEnablePasswordSeparatedSigninFlowName[];
+
+// Description for the flag to enable the new gaia password-separated sign in
+// flow.
+extern const char kEnablePasswordSeparatedSigninFlowDescription[];
+
+// Title for the flag to enable the google profile information
+extern const char kGoogleProfileInfoName[];
+
+// Description for the flag to enable the google profile information
+extern const char kGoogleProfileInfoDescription[];
+
+// Name of the flag to force show the checkbox to save Wallet cards locally.
+extern const char kOfferStoreUnmaskedWalletCards[];
+
+// Name of the flag to force show the checkbox to save Wallet cards locally.
+extern const char kOfferStoreUnmaskedWalletCardsDescription[];
+
+// Name of the flag to make pages which failed to load while offline auto-reload
+extern const char kOfflineAutoReloadName[];
+
+// Description of the flag to make pages which failed to load while offline
+// auto-reload
+extern const char kOfflineAutoReloadDescription[];
+
+// Name of the flag to only enable auto-reload on visible tabs
+extern const char kOfflineAutoReloadVisibleOnlyName[];
+
+// Description of the flag to only auto-reload visible tabs
+extern const char kOfflineAutoReloadVisibleOnlyDescription[];
+
+// Name of the flag to enable offering users the option of loading a stale copy
+// of a page when an error occurs.
+extern const char kShowSavedCopyName[];
+
+// Description of the flag to enable offering users the option of loading a
+// stale copy of a page when an error occurs.
+extern const char kShowSavedCopyDescription[];
+
+// Option for IDS_FLAGS_SHOW_SAVED_NAME to use the show saved copy as the
+// primary button.
+extern const char kEnableShowSavedCopyPrimary[];
+
+// Option for IDS_FLAGS_SHOW_SAVED_COPY_NAME to use the reload as the primary
+// button (in contrast to the show saved button).
+extern const char kEnableShowSavedCopySecondary[];
+
+// Option to disable IDS_FLAGS_SHOW_SAVED_COPY_NAME.
+extern const char kDisableShowSavedCopy[];
+
+#if defined(OS_CHROMEOS)
+
+// Name of about:flags option to toggle smart deployment of the virtual
+// keyboard.
+extern const char kSmartVirtualKeyboardName[];
+
+// Description of about:flags option to turn off smart deployment of the virtual
+// keyboard
+extern const char kSmartVirtualKeyboardDescription[];
+
+// Name of about:flags option to turn on the virtual keyboard
+extern const char kVirtualKeyboardName[];
+
+// Description of about:flags option to turn on the virtual keyboard
+extern const char kVirtualKeyboardDescription[];
+
+// Name of about:flags option to turn on the overscrolling for the virtual
+// keyboard
+extern const char kVirtualKeyboardOverscrollName[];
+
+// Description of about:flags option to turn on overscrolling for the virtual
+// keyboard
+extern const char kVirtualKeyboardOverscrollDescription[];
+
+// Name of about::flags option to enable IME extensions to override the virtual
+// keyboard view
+extern const char kInputViewName[];
+
+// Description of about::flags option to enable IME extensions to override the
+// virtual keyboard view
+extern const char kInputViewDescription[];
+
+// Name of about::flags option for the new Korean IME
+extern const char kNewKoreanImeName[];
+
+// Description of about::flags option for the new Korean IME
+extern const char kNewKoreanImeDescription[];
+
+// Name of about::flags option to enable physical keyboard autocorrect for US
+// keyboard
+extern const char kPhysicalKeyboardAutocorrectName[];
+
+// Description of about::flags option to enable physical keyboard autocorrect
+// for US keyboard
+extern const char kPhysicalKeyboardAutocorrectDescription[];
+
+// Name of about::flags option for voice input on virtual keyboard
+extern const char kVoiceInputName[];
+
+// Description of about::flags option for voice input on virtual keyboard
+extern const char kVoiceInputDescription[];
+
+// Name of about::flags option to enable experimental features for IME
+// input-views
+extern const char kExperimentalInputViewFeaturesName[];
+
+// Description of about::flags option to enable experimental features for IME
+// input-views
+extern const char kExperimentalInputViewFeaturesDescription[];
+
+// Name of about::flags option to toggle floating virtual keyboard
+extern const char kFloatingVirtualKeyboardName[];
+
+// Description of about::flags option to toggle floating virtual keyboard
+extern const char kFloatingVirtualKeyboardDescription[];
+
+// Name of about::flags option to toggle gesture typing for the virtual keyboard
+extern const char kGestureTypingName[];
+
+// Description of about::flags option to toggle gesture typing for the virtual
+// keyboard
+extern const char kGestureTypingDescription[];
+
+// Name of about::flags option to toggle gesture editing for the virtual
+// keyboard
+extern const char kGestureEditingName[];
+
+// Description of about::flags option to toggle gesture editing in the settings
+// page for the virtual keyboard
+extern const char kGestureEditingDescription[];
+
+// Name of about::flags option for bypass proxy for captive portal authorization
+// on Chrome OS.
+extern const char kCaptivePortalBypassProxyName[];
+
+// Description of about::flags option for bypass proxy for captive portal
+// authorization on Chrome OS.
+extern const char kCaptivePortalBypassProxyDescription[];
+
+// Name of option to enable touch screen calibration in material design settings
+extern const char kTouchscreenCalibrationName[];
+
+// Description of option to enable touch screen calibration settings in
+// chrome://md-settings/display.
+extern const char kTouchscreenCalibrationDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+//  Strings for controlling credit card assist feature in about:flags.
+
+// The name of about:flags option to enable the credit card assisted filling.
+extern const char kCreditCardAssistName[];
+
+// The description of about:flags option to enable the credit card assisted
+// filling..
+extern const char kCreditCardAssistDescription[];
+
+//  Strings for controlling credit card scanning feature in about:flags.
+
+//  Simple Cache Backend experiment.
+
+// Name of about:flags option to turn on the Simple Cache Backend
+extern const char kSimpleCacheBackendName[];
+
+// Description of about:flags option to turn on the Simple Cache Backend
+extern const char kSimpleCacheBackendDescription[];
+
+//  Spelling feedback field trial.
+
+// Name of about:flags option to enable the field trial for sending feedback to
+// spelling service.
+extern const char kSpellingFeedbackFieldTrialName[];
+
+// Description of about:flags option to enable the field trial for sending
+// feedback to spelling service.
+extern const char kSpellingFeedbackFieldTrialDescription[];
+
+//  Web MIDI API.
+
+// Name of about:flag option to turn on Web MIDI API
+extern const char kWebMidiName[];
+
+// Description of about:flag option to turn on Web MIDI API
+extern const char kWebMidiDescription[];
+
+//  Site per process mode
+
+// Name of about:flag option to turn on experimental out-of-process iframe
+// support
+extern const char kSitePerProcessName[];
+
+// Description of about:flag option to turn on experimental out-of-process
+// iframe support
+extern const char kSitePerProcessDescription[];
+
+//  Top document isolation mode
+
+// Name of about:flag option to turn on experimental top document isolation
+// support
+extern const char kTopDocumentIsolationName[];
+
+// Description of about:flag option to turn on top document isolation
+extern const char kTopDocumentIsolationDescription[];
+
+//  Cross process guest frames isolation mode
+
+// Name of about:flag option to turn on experimental guests using out-of-process
+// iframes
+extern const char kCrossProcessGuestViewIsolationName[];
+
+// Description of about:flag option to turn on experimental guests using
+// out-of-process iframes
+extern const char kCrossProcessGuestViewIsolationDescription[];
+
+//  Task Scheduler
+
+// Name of about:flag option to control redirection to the task scheduler.
+extern const char kBrowserTaskSchedulerName[];
+
+// Description of about:flag option to control redirection to the task
+// scheduler.
+extern const char kBrowserTaskSchedulerDescription[];
+
+//  Arc authorization
+
+#if defined(OS_CHROMEOS)
+
+// Name of about:flag option to control the arc authorization endpoint.
+extern const char kArcUseAuthEndpointName[];
+
+// Desciption of about:flag option to control the arc authorization endpoint.
+extern const char kArcUseAuthEndpointDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+//  Autofill experiment flags
+
+// Name of the single click autofill lab
+extern const char kSingleClickAutofillName[];
+
+// Description of the single click autofill lab
+extern const char kSingleClickAutofillDescription[];
+
+#if defined(OS_ANDROID)
+
+// Title for the flag to show Autofill suggestions at top of keyboard
+extern const char kAutofillAccessoryViewName[];
+
+// Description for the flag to show Autofill suggestions at top of keyboard
+extern const char kAutofillAccessoryViewDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Reader mode experiment flags
+
+#if defined(OS_ANDROID)
+
+// A name of an about:flags experiment for controlling when to show the reader
+// mode button
+extern const char kReaderModeHeuristicsName[];
+
+// Describes about:flags experiment options for controlling when to show the
+// reader mode button
+extern const char kReaderModeHeuristicsDescription[];
+
+// A choice in dropdown dialog on about:flags page to show the reader mode
+// button with article structured markup
+extern const char kReaderModeHeuristicsMarkup[];
+
+// A choice in dropdown dialog on about:flags page to show the reader mode
+// button on pages that appear to be long form content
+extern const char kReaderModeHeuristicsAdaboost[];
+
+// A choice in dropdown dialog on about:flags page to never show the reader mode
+// button
+extern const char kReaderModeHeuristicsAlwaysOff[];
+
+// A choice in dropdown dialog on about:flags page to show the reader mode
+// button on all pages
+extern const char kReaderModeHeuristicsAlwaysOn[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Chrome home flags
+
+#if defined(OS_ANDROID)
+
+// The name of the Chrome Home experiment in about:flags.
+extern const char kChromeHomeName[];
+
+// Description of the Chrome Home experiment in about:flags.
+extern const char kChromeHomeDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Settings window flags
+
+// An about::flags experiment title to show settings in a separate window
+extern const char kSettingsWindowName[];
+
+// Describes an about:flags experiment to show settings in a separate window
+extern const char kSettingsWindowDescription[];
+
+//  Mixed content issue workaround flags
+
+#if defined(OS_ANDROID)
+
+//  Flag strings for seccomp-bpf sandbox flag.
+
+// Title for the flag to enable the seccomp-bpf sandbox on Android.
+extern const char kSeccompFilterSandboxAndroidName[];
+
+// Description for the flag to enable the seccomp-bpf sandbox on Android.
+extern const char kSeccompFilterSandboxAndroidDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Extension Content Verification
+
+// Name of the 'Extension Content Verification' flag
+extern const char kExtensionContentVerificationName[];
+
+// Title for the flag to turn on verification of the contents of extensions from
+// the webstore
+extern const char kExtensionContentVerificationDescription[];
+
+// Description of the 'Extension Content Verification' bootstrap mode
+extern const char kExtensionContentVerificationBootstrap[];
+
+// Description of the 'Extension Content Verification' enforce mode
+extern const char kExtensionContentVerificationEnforce[];
+
+// Description of the 'Extension Content Verification' enforce strict mode
+extern const char kExtensionContentVerificationEnforceStrict[];
+
+//  Built-in hotword detection display strings
+
+// Name of about:flags option for hotword hardware detection.
+extern const char kExperimentalHotwordHardwareName[];
+
+// Description of about:flags option for hotword hardware detection.
+extern const char kExperimentalHotwordHardwareDescription[];
+
+//  Message center strings
+
+// Name of about:flags option for message center always scroll up experiment.
+extern const char kMessageCenterAlwaysScrollUpUponRemovalName[];
+
+// Description of about:flags option for message center always scroll up
+// experiment.
+extern const char kMessageCenterAlwaysScrollUpUponRemovalDescription[];
+
+// Name of chrome:flags option for Cast Streaming hardware video encoding
+// support.
+extern const char kCastStreamingHwEncodingName[];
+
+// Description of chrome:flags option for Cast Streaming hardware video encoding
+// support.
+extern const char kCastStreamingHwEncodingDescription[];
+
+// Name of the 'Allow insecure localhost' flag.
+extern const char kAllowInsecureLocalhost[];
+
+// Description of the 'Allow insecure localhost' flag.
+extern const char kAllowInsecureLocalhostDescription[];
+
+#if defined(OS_WIN) || defined(OS_MACOSX)
+
+//  Tab discarding
+
+// Name for the flag to enable or disable automatic tab discarding.
+extern const char kAutomaticTabDiscardingName[];
+
+// Description for the flag to enable or disable automatic tab description.
+extern const char kAutomaticTabDiscardingDescription[];
+
+#endif  // defined(OS_WIN) || defined(OS_MACOSX)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable offline bookmarks.
+extern const char kOfflineBookmarksName[];
+
+// Description for the flag to enable offline bookmarks.
+extern const char kOfflineBookmarksDescription[];
+
+// Name for the flag to enable badging of offline pages on the NTP.
+extern const char kNtpOfflinePagesName[];
+
+// Description for the flag to enable badging of offline pages on the NTP.
+extern const char kNtpOfflinePagesDescription[];
+
+// Name for the flag to enable offline pages for async download.
+extern const char kOfflinePagesAsyncDownloadName[];
+
+// Description for the flag to enable offline pages.
+extern const char kOfflinePagesAsyncDownloadDescription[];
+
+// Name for the flag to enable concurrent background loading on svelte (512MB
+// RAM) devices.
+extern const char kOfflinePagesSvelteConcurrentLoadingName[];
+
+// Description for the flag to enable concurrent background loading on svelte
+// (512MB RAM) devices.
+extern const char kOfflinePagesSvelteConcurrentLoadingDescription[];
+
+// Name for the flag to enable offline pages to be prefetched.
+extern const char kOfflinePagesPrefetchingName[];
+
+// Description for the flag to enable offline pages prefetching.
+extern const char kOfflinePagesPrefetchingDescription[];
+
+// Name for the flag to enable offline pages to be shared.
+extern const char kOfflinePagesSharingName[];
+
+// Description for the flag to enable offline pages sharing.
+extern const char kOfflinePagesSharingDescription[];
+
+// Name for the flag to enable downloads to load pages in the background.
+extern const char kBackgroundLoaderForDownloadsName[];
+
+// Description for the flag to enable offline pages for downloads.
+extern const char kBackgroundLoaderForDownloadsDescription[];
+
+// Name for the flag to use background loader to offline and download pages
+extern const char kNewBackgroundLoaderName[];
+
+// Description for the flag to enable background offlining of pages to use
+// background loader rather than prerenderer.
+extern const char kNewBackgroundLoaderDescription[];
+
+// Name for the flag to enable showing non-personalized popular suggestions on
+// the New Tab Page, when no personal suggestions are available yet.
+extern const char kNtpPopularSitesName[];
+
+// Description for the flag to enable showing non-personalized popular
+// suggestions on the New Tab Page, when no personal suggestions are available
+// yet.
+extern const char kNtpPopularSitesDescription[];
+
+// Name of the flag to control the behaviour when opening a suggested web page
+// from the New Tab Page if there is an existing tab open for it.
+extern const char kNtpSwitchToExistingTabName[];
+
+// Description of the flag to control the behaviour when opening a suggested web
+// page from the New Tab Page if there is an existing tab open for it.
+extern const char kNtpSwitchToExistingTabDescription[];
+
+// Match the webpage to open with existing tabs by their URLs.
+extern const char kNtpSwitchToExistingTabMatchUrl[];
+
+// Match the webpage to open with existing tabs by their Hostnames.
+extern const char kNtpSwitchToExistingTabMatchHost[];
+
+// Name for the flag to use android midi api.
+extern const char kUseAndroidMidiApiName[];
+
+// Description for the flag to use android midi api.
+extern const char kUseAndroidMidiApiDescription[];
+
+// Name for the flag to enable web payments modifiers.
+extern const char kWebPaymentsModifiersName[];
+
+// Description for the flag to use android midi api.
+extern const char kWebPaymentsModifiersDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_WIN)
+
+//  Exporting tracing events to ETW
+
+// Name for the flag to enable exporting of tracing events to ETW.
+extern const char kTraceExportEventsToEtwName[];
+
+// Description for the flag to enable exporting of tracing events to ETW.
+extern const char kTraceExportEventsToEtwDesription[];
+
+// Name for the flag to enable/disable merging the key event with char event.
+extern const char kMergeKeyCharEventsName[];
+
+// Description for the flag to enable/disable merging the key event with char
+// event.
+extern const char kMergeKeyCharEventsDescription[];
+
+// Name for the flag to use Windows Runtime MIDI API.
+extern const char kUseWinrtMidiApiName[];
+
+// Description for the flag to use Windows Runtime MIDI API.
+extern const char kUseWinrtMidiApiDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(OS_ANDROID)
+
+//  Data Use
+
+//  Update Menu Item Flags
+
+// Name of the flag to force show the update menu item.
+extern const char kUpdateMenuItemName[];
+
+// Description of the flag to force show the update menu item.
+extern const char kUpdateMenuItemDescription[];
+
+// Name of the flag to show a summary below the update menu item.
+extern const char kUpdateMenuItemSummaryName[];
+
+// Description of the flag to show a summary below the update menu item.
+extern const char kUpdateMenuItemSummaryDescription[];
+
+// Option to not show a summary for the update menu item.
+extern const char kUpdateMenuItemNoSummary[];
+
+// Option to show the default summary for the update menu item.
+extern const char kUpdateMenuItemDefaultSummary[];
+
+// Option to show a summary for the update menu item prompting users to 'get the
+// latest features'.
+extern const char kUpdateMenuItemNewFeaturesSummary[];
+
+// Option to show a custom summary for the update menu item.
+extern const char kUpdateMenuItemCustomSummary[];
+
+// Name of the flag to force show the update menu badge.
+extern const char kUpdateMenuBadgeName[];
+
+// Description of the flag to force show the update menu badge.
+extern const char kUpdateMenuBadgeDescription[];
+
+// Name of the flag to set a market URL for testing the update menu item.
+extern const char kSetMarketUrlForTestingName[];
+
+// Description of the flag to set a market URL for testing the update menu item.
+extern const char kSetMarketUrlForTestingDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable the new UI prototypes for tab management.
+extern const char kHerbPrototypeChoicesName[];
+
+// Description for the flag to enable the new UI prototypes for tab management.
+extern const char kHerbPrototypeChoicesDescription[];
+
+// CCT everywhere
+extern const char kHerbPrototypeFlavorElderberry[];
+
+// Name of the option to show special locale.
+extern const char kEnableSpecialLocaleName[];
+
+// Description of the option to show special locale.
+extern const char kEnableSpecialLocaleDescription[];
+
+//  WebApks
+
+// Name for the flag to enable WebAPK feature.
+extern const char kEnableWebapk[];
+
+// Description for the flag to enable WebAPK feature.
+extern const char kEnableWebapkDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Title for the flag to enable Brotli Content-Encoding.
+extern const char kEnableBrotliName[];
+
+// Description for the flag to enable Brotli Content-Encoding.
+extern const char kEnableBrotliDescription[];
+
+// Title for the flag to enable WebFonts User Agent Intervention.
+extern const char kEnableWebfontsInterventionName[];
+
+// Description for the flag to enable WebFonts User Agent Intervention.
+extern const char kEnableWebfontsInterventionDescription[];
+
+// Text to indicate a experiment group name for enable-webfonts-intervention-v2
+extern const char kEnableWebfontsInterventionV2ChoiceDefault[];
+
+// Text to indicate a experiment group name for enable-webfonts-intervention-v2
+extern const char kEnableWebfontsInterventionV2ChoiceEnabledWith2g[];
+
+// Text to indicate a experiment group name for enable-webfonts-intervention-v2
+extern const char kEnableWebfontsInterventionV2ChoiceEnabledWith3g[];
+
+// Text to indicate a experiment group name for enable-webfonts-intervention-v2
+extern const char kEnableWebfontsInterventionV2ChoiceEnabledWithSlow2g[];
+
+// Text to indicate a experiment group name for enable-webfonts-intervention-v2
+extern const char kEnableWebfontsInterventionV2ChoiceDisabled[];
+
+// Title for the flag to trigger WebFonts User Agent Intervention always.
+extern const char kEnableWebfontsInterventionTriggerName[];
+
+// Description for the flag to trigger WebFonts User Agent Intervention always.
+extern const char kEnableWebfontsInterventionTriggerDescription[];
+
+// Name of the scroll anchoring flag.
+extern const char kEnableScrollAnchoringName[];
+
+// Description of the scroll anchoring flag
+extern const char kEnableScrollAnchoringDescription[];
+
+#if defined(OS_CHROMEOS)
+
+// Name of the native cups flag.
+extern const char kEnableNativeCupsName[];
+
+// Description of the native CUPS flag
+extern const char kEnableNativeCupsDescription[];
+
+// Name of the Android Wallpapers App flag.
+extern const char kEnableAndroidWallpapersAppName[];
+
+// Description of the Android Wallpapers App flag.
+extern const char kEnableAndroidWallpapersAppDescription[];
+
+// Name of the touch support for screen magnifier flag.
+extern const char kEnableTouchSupportForScreenMagnifierName[];
+
+// Description of the touch support for screen magnifier flag.
+extern const char kEnableTouchSupportForScreenMagnifierDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to choose a default category order for content suggestions,
+// e.g. on the New Tab page.
+extern const char kContentSuggestionsCategoryOrderName[];
+
+// Description for the flag to choose a default category order for content
+// suggestions, e.g. on the New Tab page.
+extern const char kContentSuggestionsCategoryOrderDescription[];
+
+// Name for the flag to choose a category ranker for content suggestions, e.g.
+// on the New Tab page.
+extern const char kContentSuggestionsCategoryRankerName[];
+
+// Description for the flag to choose a category ranker for content suggestions,
+// e.g. on the New Tab page.
+extern const char kContentSuggestionsCategoryRankerDescription[];
+
+// Name for the flag to enable increased visibilty for snippets on the New Tab
+// Page.
+extern const char kEnableNtpSnippetsVisibilityName[];
+
+// Description for the flag to enable increased visibility for recently viewed
+// tabs on the New Tab page.
+extern const char kEnableNtpSnippetsVisibilityDescription[];
+
+// Name for the flag to enable server-side suggestions on the New Tab Page.
+extern const char kEnableNtpRemoteSuggestionsName[];
+
+// Description for the flag to enable server-side suggestions on the New Tab
+// Page.
+extern const char kEnableNtpRemoteSuggestionsDescription[];
+
+// Name for the flag to enable suggestions for recently viewed tabs, which were
+// captured offline, on the New Tab page.
+extern const char kEnableNtpRecentOfflineTabSuggestionsName[];
+
+// Description for the flag to enable suggestions for recently viewed tabs on
+// the New Tab page.
+extern const char kEnableNtpRecentOfflineTabSuggestionsDescription[];
+
+// Name for the flag to enable offline page suggestions on the New Tab page.
+extern const char kEnableNtpSaveToOfflineName[];
+
+// Description for the flag to enable offline page suggestions on the New Tab
+// page.
+extern const char kEnableNtpSaveToOfflineDescription[];
+
+// Name for the flag to enable offline badges for snippets on the New Tab page.
+extern const char kEnableNtpOfflineBadgeName[];
+
+// Description for the flag to enable offline badges for snippets on the New Tab
+// page.
+extern const char kEnableNtpOfflineBadgeDescription[];
+
+// Name for the flag to enable asset downloads suggestions (e.g. books,
+// pictures, audio) on the New Tab page.
+extern const char kEnableNtpAssetDownloadSuggestionsName[];
+
+// Description for the flag to enable asset downloads suggestions (e.g. books,
+// pictures, audio) on the New Tab page.
+extern const char kEnableNtpAssetDownloadSuggestionsDescription[];
+
+// Name for the flag to enable offline page downloads suggestions on the New Tab
+// page.
+extern const char kEnableNtpOfflinePageDownloadSuggestionsName[];
+
+// Description for the flag to enable offline page downloads suggestions on the
+// New Tab page.
+extern const char kEnableNtpOfflinePageDownloadSuggestionsDescription[];
+
+// Name for the flag to enable bookmark suggestions on the New Tab page.
+extern const char kEnableNtpBookmarkSuggestionsName[];
+
+// Description for the flag to enable bookmark suggestions on the New Tab page.
+extern const char kEnableNtpBookmarkSuggestionsDescription[];
+
+// Name for the flag to enable physical web page suggestions on the New Tab
+// page.
+extern const char kEnableNtpPhysicalWebPageSuggestionsName[];
+
+// Description for the flag to enable physical web page suggestions on the New
+// Tab page.
+extern const char kEnableNtpPhysicalWebPageSuggestionsDescription[];
+
+// Name for the flag to enable foreign sessions suggestions on the New Tab page.
+extern const char kEnableNtpForeignSessionsSuggestionsName[];
+
+// Description for the flag to enable foreign sessions suggestions on the New
+// Tab page.
+extern const char kEnableNtpForeignSessionsSuggestionsDescription[];
+
+// Name for the flag to enable notifications for content suggestions on the New
+// Tab page.
+extern const char kEnableNtpSuggestionsNotificationsName[];
+
+// Description for the flag to enable notifications for content suggestions on
+// the New Tab page.
+extern const char kEnableNtpSuggestionsNotificationsDescription[];
+
+// Name for the flag to enable the condensed New Tab Page layout.
+extern const char kNtpCondensedLayoutName[];
+
+// Description for the flag to enable the condensed New Tab Page layout.
+extern const char kNtpCondensedLayoutDescription[];
+
+// Name for the flag to enable the condensed tile layout on the New Tab Page.
+extern const char kNtpCondensedTileLayoutName[];
+
+// Description for the flag to enable the condensed tile layout on the New Tab
+// Page.
+extern const char kNtpCondensedTileLayoutDescription[];
+
+// Name for the flag to show a Google G in the omnibox on the New Tab Page.
+extern const char kNtpGoogleGInOmniboxName[];
+
+// Description for the flag to show a Google G in the omnibox on the New Tab
+// Page.
+extern const char kNtpGoogleGInOmniboxDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable offlining of recently visited pages.
+extern const char kOffliningRecentPagesName[];
+
+// Description for the flag to enable offlining of recently visited pages.
+extern const char kOffliningRecentPagesDescription[];
+
+// Name for the flag to enable offlining CT features.
+extern const char kOfflinePagesCtName[];
+
+// Description for the flag to enable offline pages CT features.
+extern const char kOfflinePagesCtDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable expanded autofill poup layout for credit cards.
+extern const char kEnableExpandedAutofillCreditCardPopupLayout[];
+
+// Description for the flag to enable expanded autofill poup layout for credit
+// cards.
+extern const char kEnableExpandedAutofillCreditCardPopupLayoutDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name for the flag to enable display the last used date of a credit card in
+// autofill.
+extern const char kEnableAutofillCreditCardLastUsedDateDisplay[];
+
+// Description for the flag to enable display the last used date of a credit
+// card in autofill.
+extern const char kEnableAutofillCreditCardLastUsedDateDisplayDescription[];
+
+#if !defined(OS_ANDROID) && defined(GOOGLE_CHROME_BUILD)
+
+// Name for the flag to enable Google branding in the context menu.
+extern const char kGoogleBrandedContextMenuName[];
+
+// Description for the flag to enable Google branding in the context menu.
+extern const char kGoogleBrandedContextMenuDescription[];
+
+#endif  // !defined(OS_ANDROID) && defined(GOOGLE_CHROME_BUILD)
+
+// Title for the flag to enable WebUSB.
+extern const char kEnableWebUsbName[];
+
+// Description for the flag to enable WebUSB.
+extern const char kEnableWebUsbDescription[];
+
+// Title for the flag to enable Generic Sensor API.
+extern const char kEnableGenericSensorName[];
+
+// Description for the flag to enable Generic Sensor API.
+extern const char kEnableGenericSensorDescription[];
+
+// Title for the flag to enable FontCache scaling
+extern const char kFontCacheScalingName[];
+
+// Description for the flag to enable FontCache scaling
+extern const char kFontCacheScalingDescription[];
+
+// Title for the flag to enable Framebusting restrictions
+extern const char kFramebustingName[];
+
+// Description for the flag that prevents an iframe (typically an ad) from
+// navigating the top level browsing context (the whole tab) unless the top and
+// the iframe are part of the same website or the the navigation is requested in
+// response to a user action (e.g., the user clicked on the tab)
+extern const char kFramebustingDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag to enable VR shell
+extern const char kEnableVrShellName[];
+
+// Description for the flag to enable VR shell
+extern const char kEnableVrShellDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Web payments
+
+// Name of the flag to enable Web Payments API.
+extern const char kWebPaymentsName[];
+
+// Description for the flag to enable Web Payments API
+extern const char kWebPaymentsDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name of the flag to enable the first version of Android Pay integration
+extern const char kEnableAndroidPayIntegrationV1Name[];
+
+// Description for the flag to enable the first version of Android Pay
+// integration
+extern const char kEnableAndroidPayIntegrationV1Description[];
+
+// Name of the flag to enable the second version of Android Pay integration
+extern const char kEnableAndroidPayIntegrationV2Name[];
+
+// Description for the flag to enable the second version of Android Pay
+// integration
+extern const char kEnableAndroidPayIntegrationV2Description[];
+
+// Name of the flag to enable the Web Payments to skip UI
+extern const char kEnableWebPaymentsSingleAppUiSkipName[];
+
+// Description for the flag to enable the Web Payments to skip UI
+extern const char kEnableWebPaymentsSingleAppUiSkipDescription[];
+
+// Name of the flag to enable third party Android payment apps
+extern const char kAndroidPaymentAppsName[];
+
+// Description for the flag to enable third party Android payment apps
+extern const char kAndroidPaymentAppsDescription[];
+
+// Title of the flag to enable filtering out third party Android payment apps
+extern const char kAndroidPaymentAppsFilterTitle[];
+
+// Description for the flag to enable filtering out third party Android payment
+// apps
+extern const char kAndroidPaymentAppsFilterDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name for the flag to enable feature policy.
+extern const char kFeaturePolicyName[];
+
+// Description for the flag to enable feature policy.
+extern const char kFeaturePolicyDescription[];
+
+//  Audio rendering mixing experiment strings.
+
+// Name of the flag for enabling the new audio rendering mixing strategy.
+extern const char kNewAudioRenderingMixingStrategyName[];
+
+// Description of the flag for enabling the new audio rendering mixing strategy.
+extern const char kNewAudioRenderingMixingStrategyDescription[];
+
+//  Background video track disabling experiment strings.
+
+// Name of the flag for enabling optimizing background video playback.
+extern const char kBackgroundVideoTrackOptimizationName[];
+
+// Description of the flag for enabling optimizing background video playback.
+extern const char kBackgroundVideoTrackOptimizationDescription[];
+
+//  Video fullscreen with orientation lock experiment strings.
+
+// Name of the flag for enabling orientation lock for fullscreen video playback.
+extern const char kVideoFullscreenOrientationLockName[];
+
+// Description of the flag for enabling orientation lock for fullscreen video
+// playback.
+extern const char kVideoFullscreenOrientationLockDescription[];
+
+//  Expensive background timer throttling flag
+
+// Name for the flag to enable expensive background timer throttling
+extern const char kExpensiveBackgroundTimerThrottlingName[];
+
+// Description for the flag to enable expensive background timer throttling
+extern const char kExpensiveBackgroundTimerThrottlingDescription[];
+
+//  Enable default MediaSession flag
+
+#if !defined(OS_ANDROID)
+
+// Name for the flag to enable default MediaSession on desktop
+extern const char kEnableDefaultMediaSessionName[];
+
+// Desciption for the flag to enable default MediaSession on desktop
+extern const char kEnableDefaultMediaSessionDescription[];
+
+// Option for disabling the default MediaSession
+extern const char kEnableDefaultMediaSessionDisabled[];
+
+// Option for enabling the default MediaSession
+extern const char kEnableDefaultMediaSessionEnabled[];
+
+// Option for enabling the default MediaSession with Flash
+extern const char kEnableDefaultMediaSessionEnabledDuckFlash[];
+
+#endif  // !defined(OS_ANDROID)
+
+#if defined(OS_WIN)
+
+// Name for the flag that enables using GDI to print text
+extern const char kGdiTextPrinting[];
+
+// Description of the flag that enables using GDI to print text.
+extern const char kGdiTextPrintingDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable modal permission prompts on Android
+extern const char kModalPermissionPromptsName[];
+
+// Description for the flag to enable modal permission prompts on Android.
+extern const char kModalPermissionPromptsDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if !defined(OS_MACOSX)
+
+// Name for the flag to enable a persistence toggle in permission prompts
+extern const char kPermissionPromptPersistenceToggleName[];
+
+// Description for the flag to enable a persistence toggle in permission prompts
+extern const char kPermissionPromptPersistenceToggleDescription[];
+
+#endif  // !defined(OS_MACOSX)
+
+#if defined(OS_ANDROID)
+
+// Title for the flag to enable the No Card Abort in Payment Request.
+extern const char kNoCreditCardAbort[];
+
+// Description for the flag to enable the No Card Abort in Payment Request.
+extern const char kNoCreditCardAbortDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Consistent omnibox geolocation
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable consistent omnibox geolocation
+extern const char kEnableConsistentOmniboxGeolocationName[];
+
+// Desciption for the flag to enable consistent omnibox geolocation
+extern const char kEnableConsistentOmniboxGeolocationDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Media Remoting chrome://flags strings
+
+// Name for the flag to enable Media Remoting
+extern const char kMediaRemotingName[];
+
+// Desciption for the flag to enable Media Remoting
+extern const char kMediaRemotingDescription[];
+
+// Name for the flag to enable Media Remoting of encrypted content
+extern const char kMediaRemotingEncryptedName[];
+
+// Desciption for the flag to enable Media Remoting of encrypted content
+extern const char kMediaRemotingEncryptedDescription[];
+
+//  Chrome OS component updates chrome://flags strings
+
+// Name for the flag to enable Chrome OS component flash updates
+extern const char kCrosCompUpdatesName[];
+
+// Description for the flag to enable Chrome OS component flash updates
+extern const char kCrosCompUpdatesDescription[];
+
+//  Native Android History chrome://flags strings
+
+#if defined(OS_ANDROID)
+
+// Name of the flag that enables the native Android history UI.
+extern const char kNativeAndroidHistoryManager[];
+
+// Description of the flag that enables the native Android history UI.
+extern const char kNativeAndroidHistoryManagerDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Play Services LSD permission prompt chrome://flags strings
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable LSD permission prompts on Android
+extern const char kLsdPermissionPromptName[];
+
+// Description for the flag to enable LSD permission prompts on Android.
+extern const char kLsdPermissionPromptDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+#if defined(OS_WIN)
+
+//  Custom draw the Windows 10 titlebar. crbug.com/505013
+
+// Name of the flag that enables custom drawing of the Windows 10 titlebar.
+extern const char kWindows10CustomTitlebarName[];
+
+// Description for the flag that enables custom drawing of the Windows 10
+// titlebar.
+extern const char kWindows10CustomTitlebarDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(OS_WIN)
+
+// Name of the flag that enables postscript printing.
+extern const char kPostscriptPrinting[];
+
+// Description of the flag that enables postscript printing.
+extern const char kPostscriptPrintingDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(OS_ANDROID)
+
+// Name of the flag that enables intermediate certificate fetching.
+extern const char kAiaFetchingName[];
+
+// Description of the flag that enables intermediate certificate fetching.
+extern const char kAiaFetchingDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+//  Web MIDI supports MIDIManager dynamic instantiation chrome://flags strings
+
+// Name for the flag to enable MIDIManager dynamic instantiation
+extern const char kEnableMidiManagerDynamicInstantiationName[];
+
+// Description for the flag to enable MIDIManager dynamic instantiation
+extern const char kEnableMidiManagerDynamicInstantiationDescription[];
+
+//  Desktop iOS promotion chrome://flags strings
+
+#if defined(OS_WIN)
+
+// Name for the flag to enable desktop to iOS promotions
+extern const char kEnableDesktopIosPromotionsName[];
+
+// Description for the flag to enable desktop to iOS promotions
+extern const char kEnableDesktopIosPromotionsDescription[];
+
+#endif  // defined(OS_WIN)
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable custom feeback UI
+extern const char kEnableCustomFeedbackUiName[];
+
+// Name for the flag to enable custom feeback UI
+extern const char kEnableCustomFeedbackUiDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Name of the flag that enables adjustable large cursor.
+extern const char kEnableAdjustableLargeCursorName[];
+
+// Description of the flag that enables adjustable large cursor.
+extern const char kEnableAdjustableLargeCursorDescription[];
+
+#if defined(OS_CHROMEOS) || defined(OS_LINUX) || defined(OS_MACOSX) || \
+    defined(OS_WIN)
+
+// Name of the flag that enables receiving entity suggestions.
+extern const char kOmniboxEntitySuggestionsName[];
+
+// Description of the flag that enables entity suggestions.
+extern const char kOmniboxEntitySuggestionsDescription[];
+
+#endif  // defined(OS_CHROMEOS) || defined(OS_LINUX) || defined(OS_MACOSX) ||
+        // defined(OS_WIN)
+
+#if defined(OS_CHROMEOS)
+
+// Name of the flag that enables ChromeVox support for ARC.
+extern const char kEnableChromevoxArcSupportName[];
+
+// Description of the flag that enables ChromeVox support for ARC.
+extern const char kEnableChromevoxArcSupportDescription[];
+
+#endif  // defined(OS_CHROMEOS)
+
+// Title for the flag to enable Mojo IPC for resource loading
+extern const char kMojoLoadingName[];
+
+// Description for the flag to enable Mojo IPC for resource loading
+extern const char kMojoLoadingDescription[];
+
+#if defined(OS_ANDROID)
+
+// Name for the flag to enable the new Doodle API
+extern const char kUseNewDoodleApiName[];
+
+// Description for the flag to enable the new Doodle API
+extern const char kUseNewDoodleApiDescription[];
+
+#endif  // defined(OS_ANDROID)
+
+// Title for the flag to delay navigation
+extern const char kDelayNavigationName[];
+
+// Description for the flag to delay navigation
+extern const char kDelayNavigationDescription[];
+
+// Description of the 'Debugging keyboard shortcuts' lab.
+extern const char kDebugShortcutsDescription[];
+
+#if defined(OS_CHROMEOS)
+
+//  File Manager
+
+// Name of the about:flag option to enable the chromecast support for video app.
+extern const char kVideoPlayerChromecastSupportName[];
+
+// Description of the about:flag option to the enable the chromecast support for
+// video app.
+extern const char kVideoPlayerChromecastSupportDescription[];
+
+// Name of about::flags option for the new ZIP unpacker based on the File System
+// Provider API.
+extern const char kNewZipUnpackerName[];
+
+// Description of about::flags option for the new ZIP unpacker based on the File
+// System Provider API.
+extern const char kNewZipUnpackerDescription[];
+
+// Name of about::flags option for showing Android Files app in launcher.
+extern const char kShowArcFilesAppName[];
+
+// Description of the about::flag option for showing ARC Files app in launcher.
+extern const char kShowArcFilesAppDescription[];
+
+// Name for the flag for Office Editing for Docs, Sheets & Slides component
+// extension.
+extern const char kOfficeEditingComponentAppName[];
+
+// Description for the flag for Office Editing for Docs, Sheets & Slides
+// component extension.
+extern const char kOfficeEditingComponentAppDescription[];
+
+// Name for the flag for the color calibration of the display.
+extern const char kDisplayColorCalibrationName[];
+
+// Description for the flag for the color calibration of the display.
+extern const char kDisplayColorCalibrationDescription[];
+
+// Name for the flag which specifies which memory pressure strategy should be
+// used on ChromeOS.
+extern const char kMemoryPressureThresholdName[];
+
+// Description for the flag which specifies which memory pressure strategy
+// should be used on ChromeOS.
+extern const char kMemoryPressureThresholdDescription[];
+
+// The value of the Memory pressure for ChromeOS which requests conservative
+// thresholds.
+extern const char kConservativeThresholds[];
+
+// The value of the Memory pressure thresholds for ChromeOS which use an
+// aggressive cache release strategy.
+extern const char kAggressiveCacheDiscardThresholds[];
+
+// The value of the Memory pressure thresholds for ChromeOS which uses an
+// aggressive tab release strategy.
+extern const char kAggressiveTabDiscardThresholds[];
+
+// The value of the Memory pressure thresholds for ChromeOS which use an
+// aggressive release strategy.
+extern const char kAggressiveThresholds[];
+
+// Name for the flag to enable wake on packets.
+extern const char kWakeOnPacketsName[];
+
+// Description for the flag to enable wake on packets.
+extern const char kWakeOnPacketsDescription[];
+
+// Title of the flag used to enable quick unlock pin.
+extern const char kQuickUnlockPin[];
+
+// Description of the flag used to enable quick unlock pin.
+extern const char kQuickUnlockPinDescription[];
+
+// Title of the flag used to enable quick unlock fingerprint.
+extern const char kQuickUnlockFingerprint[];
+
+// Description of the flag used to enable quick unlock fingerprint.
+extern const char kQuickUnlockFingerprintDescription[];
+
+// Name of the about:flag option for experimental accessibility features.
+extern const char kExperimentalAccessibilityFeaturesName[];
+
+// Description of the about:flag option for experimental accessibility features.
+extern const char kExperimentalAccessibilityFeaturesDescription[];
+
+// Name of the about:flag option for disabling
+// EnableSystemTimezoneAutomaticDetection policy.
+extern const char kDisableSystemTimezoneAutomaticDetectionName[];
+
+// Description of the about:flag option for disabling
+// EnableSystemTimezoneAutomaticDetection policy.
+extern const char kDisableSystemTimezoneAutomaticDetectionDescription[];
+
+// Name of the about:flag option to disable eol notification.
+extern const char kEolNotificationName[];
+
+// Description of the about:flag option to disable eol notification.
+extern const char kEolNotificationDescription[];
+
+//  Stylus strings
+
+// Name of the about:flag option to enable stylus tools.
+extern const char kForceEnableStylusToolsName[];
+
+// Description of the about:flag option to enable stylus tools.
+extern const char kForceEnableStylusToolsDescription[];
+
+//  Network portal notification
+
+// Title for the flag to enable/disable notifications about captive portals.
+extern const char kNetworkPortalNotificationName[];
+
+// Description for the flag to enable/disable notifications about captive
+// portals.
+extern const char kNetworkPortalNotificationDescription[];
+
+// Name of the option for mtp write support.
+extern const char kMtpWriteSupportName[];
+
+// Description of the option for mtp write support.
+extern const char kMtpWriteSupportDescription[];
+
+// Title for the flag to select cros-regions file handling mode.
+extern const char kCrosRegionsModeName[];
+
+// Description for the flag to select cros-regions file handling mode.
+extern const char kCrosRegionsModeDescription[];
+
+// Name of the value for cros-regions file handling mode for 'default' mode.
+extern const char kCrosRegionsModeDefault[];
+
+// Name of the value for cros-regions file handling mode for 'override' mode
+// (values from region file replace matching VPD values).
+extern const char kCrosRegionsModeOverride[];
+
+// Name of the value for cros-regions file handling mode for 'hide' mode (VPD
+// values are hidden, only cros-region values are used).
+extern const char kCrosRegionsModeHide[];
+
+// Name of the flag used to enable launching Chrome Web Store Gallery widget app
+// for searching for printer provider apps.
+extern const char kPrinterProviderSearchAppName[];
+
+// Description of a flag in chrome://flags that enables launching Chrome Web
+// Store Gallery widget app for searching for printer provider apps.
+extern const char kPrinterProviderSearchAppDescription[];
+
+// Name of the flag for blocking the ACTION_BOOT_COMPLETED broadcast for
+// third-party apps on ARC.
+extern const char kArcBootCompleted[];
+
+// Description for the flag for blocking ACTION_BOOT_COMPLETED broadcast for
+// third-party apps.
+extern const char kArcBootCompletedDescription[];
+
+// Name of the about: flag for enabling opt-in IME menu.
+extern const char kEnableImeMenuName[];
+
+// Description of the about: flag for enabling opt-in IME menu.
+extern const char kEnableImeMenuDescription[];
+
+// Name of the about: flag for enabling emoji, handwriting and voice input on
+// opt-in IME menu.
+extern const char kEnableEhvInputName[];
+
+// Description of the about: flag enabling emoji, handwriting and voice input on
+// opt-in IME menu.
+extern const char kEnableEhvInputDescription[];
+
+#endif  // #if defined(OS_CHROMEOS)
+
+}  // namespace flags_descriptions
+
+#endif  // CHROME_BROWSER_FLAGS_DESCRIPTIONS_H_