| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/browser_features.h" |
| |
| #include "base/feature_list.h" |
| #include "build/build_config.h" |
| #include "build/chromeos_buildflags.h" |
| |
| #if BUILDFLAG(IS_WIN) |
| #include "chrome/browser/net/system_network_context_manager.h" |
| #endif |
| |
| namespace features { |
| |
| // Enables using the ClosedTabCache to instantly restore recently closed tabs |
| // using the "Reopen Closed Tab" button. |
| BASE_FEATURE(kClosedTabCache, |
| "ClosedTabCache", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Destroy profiles when their last browser window is closed, instead of when |
| // the browser exits. |
| // On Lacros the feature is enabled only for secondary profiles, check the |
| // implementation of `ProfileManager::ProfileInfo::FromUnownedProfile()`. |
| BASE_FEATURE(kDestroyProfileOnBrowserClose, |
| "DestroyProfileOnBrowserClose", |
| #if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN) || \ |
| BUILDFLAG(IS_CHROMEOS_LACROS) |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| #else |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #endif |
| |
| // DestroyProfileOnBrowserClose only covers deleting regular (non-System) |
| // Profiles. This flags lets us destroy the System Profile, as well. |
| BASE_FEATURE(kDestroySystemProfiles, |
| "DestroySystemProfiles", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Let DevTools front-end talk to the target of type "tab" rather than |
| // "frame" when inspecting a WebContents. |
| BASE_FEATURE(kDevToolsTabTarget, |
| "DevToolsTabTarget", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Normally the toolbar texture is discarded when the toolbar is no longer |
| // visible. This feature keeps the texture around so it does not need to get |
| // re-uploaded when the toolbar becomes visible again. |
| BASE_FEATURE(kKeepToolbarTexture, |
| "KeepToolbarTexture", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Nukes profile directory before creating a new profile using |
| // ProfileManager::CreateMultiProfileAsync(). |
| BASE_FEATURE(kNukeProfileBeforeCreateMultiAsync, |
| "NukeProfileBeforeCreateMultiAsync", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Enables executing the browser commands sent by the NTP promos. |
| BASE_FEATURE(kPromoBrowserCommands, |
| "PromoBrowserCommands", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Parameter name for the promo browser command ID provided along with |
| // kPromoBrowserCommands. |
| // The value of this parameter should be parsable as an unsigned integer and |
| // should map to one of the browser commands specified in: |
| // ui/webui/resources/js/browser_command/browser_command.mojom |
| const char kBrowserCommandIdParam[] = "BrowserCommandIdParam"; |
| |
| #if BUILDFLAG(IS_MAC) |
| // Enables integration with the macOS feature Universal Links. |
| BASE_FEATURE(kEnableUniveralLinks, |
| "EnableUniveralLinks", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| #endif |
| |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| // Enables reading and writing PWA notification permissions from quick settings |
| // menu. |
| BASE_FEATURE(kQuickSettingsPWANotifications, |
| "QuickSettingsPWA", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #endif |
| |
| #if BUILDFLAG(IS_CHROMEOS) |
| // Enables being able to zoom a web page by double tapping in Chrome OS tablet |
| // mode. |
| BASE_FEATURE(kDoubleTapToZoomInTabletMode, |
| "DoubleTapToZoomInTabletMode", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #endif |
| |
| #if !BUILDFLAG(IS_ANDROID) |
| // Adds an item to the context menu that copies a link to the page with the |
| // selected text highlighted. |
| BASE_FEATURE(kCopyLinkToText, |
| "CopyLinkToText", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Adds a "Snooze" action to mute notifications during screen sharing sessions. |
| BASE_FEATURE(kMuteNotificationSnoozeAction, |
| "MuteNotificationSnoozeAction", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #endif |
| |
| // Gates sandboxed iframe navigation toward external protocol behind any of: |
| // - allow-top-navigation |
| // - allow-top-navigation-to-custom-protocols |
| // - allow-top-navigation-with-user-gesture (+ user gesture) |
| // - allow-popups |
| // |
| // Motivation: |
| // Developers are surprised that a sandboxed iframe can navigate and/or |
| // redirect the user toward an external application. |
| // General iframe navigation in sandboxed iframe are not blocked normally, |
| // because they stay within the iframe. However they can be seen as a popup or |
| // a top-level navigation when it leads to opening an external application. In |
| // this case, it makes sense to extend the scope of sandbox flags, to block |
| // malvertising. |
| // |
| // Implementation bug: https://crbug.com/1253379 |
| // I2S: https://groups.google.com/a/chromium.org/g/blink-dev/c/-t-f7I6VvOI |
| // |
| // Enabled in M103. Flag to be removed in M106 |
| BASE_FEATURE(kSandboxExternalProtocolBlocked, |
| "SandboxExternalProtocolBlocked", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| // Enabled in M100. Flag to be removed in M106 |
| BASE_FEATURE(kSandboxExternalProtocolBlockedWarning, |
| "SandboxExternalProtocolBlockedWarning", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Enables migration of the network context data from `unsandboxed_data_path` to |
| // `data_path`. See the explanation in network_context.mojom. |
| BASE_FEATURE(kTriggerNetworkDataMigration, |
| "TriggerNetworkDataMigration", |
| #if BUILDFLAG(IS_WIN) |
| base::FEATURE_ENABLED_BY_DEFAULT |
| #else |
| base::FEATURE_DISABLED_BY_DEFAULT |
| #endif |
| ); |
| |
| #if BUILDFLAG(IS_CHROMEOS) |
| // If enabled, a blue border is drawn around shared tabs on ChromeOS. |
| // If disabled, the blue border is not used on ChromeOS. |
| // |
| // Motivation: |
| // The blue border behavior used to cause problems on ChromeOS - see |
| // crbug.com/1320262 for Ash (fixed) and crbug.com/1030925 for Lacros |
| // (relatively old bug - we would like to observe whether it's still |
| // there). This flag is introduced as means of disabling this feature in case |
| // of possible future regressions. |
| // |
| // TODO(crbug.com/1251999): Remove this flag once we confirm that blue border |
| // works fine on ChromeOS. |
| BASE_FEATURE(kTabCaptureBlueBorderCrOS, |
| "TabCaptureBlueBorderCrOS", |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| base::FEATURE_ENABLED_BY_DEFAULT |
| #else |
| base::FEATURE_DISABLED_BY_DEFAULT |
| #endif |
| ); |
| #endif |
| |
| // Enables runtime detection of USB devices which provide a WebUSB landing page |
| // descriptor. |
| BASE_FEATURE(kWebUsbDeviceDetection, |
| "WebUsbDeviceDetection", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| #if BUILDFLAG(IS_ANDROID) |
| // Enables Certificate Transparency on Android. |
| BASE_FEATURE(kCertificateTransparencyAndroid, |
| "CertificateTransparencyAndroid", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| #endif |
| |
| BASE_FEATURE(kLargeFaviconFromGoogle, |
| "LargeFaviconFromGoogle", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| const base::FeatureParam<int> kLargeFaviconFromGoogleSizeInDip{ |
| &kLargeFaviconFromGoogle, "favicon_size_in_dip", 128}; |
| |
| // Enables the use of a `ProfileManagerObserver` to trigger the post profile |
| // init step of the browser startup. This affects the initialization order of |
| // some features with the goal to improve startup performance in some cases. |
| // See https://bit.ly/chromium-startup-no-guest-profile. |
| BASE_FEATURE(kObserverBasedPostProfileInit, |
| "ObserverBasedPostProfileInit", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Controls whether the static key pinning list can be updated via component |
| // updater. |
| BASE_FEATURE(kKeyPinningComponentUpdater, |
| "KeyPinningComponentUpdater", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // When this feature is enabled, the network service will restart unsandboxed if |
| // a previous attempt to launch it sandboxed failed. |
| BASE_FEATURE(kRestartNetworkServiceUnsandboxedForFailedLaunch, |
| "RestartNetworkServiceUnsandboxedForFailedLaunch", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| #if BUILDFLAG(IS_WIN) |
| // When this feature is enabled, metrics are gathered regarding the performance |
| // and reliability of app-bound encryption primitives on a background thread. |
| BASE_FEATURE(kAppBoundEncryptionMetrics, |
| "AppBoundEncryptionMetrics", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Enables locking the cookie database for profiles. |
| // TODO(crbug.com/1430226): Remove after fully launched. |
| BASE_FEATURE(kLockProfileCookieDatabase, |
| "LockProfileCookieDatabase", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #endif |
| |
| // Enables showing the email of the flex org admin that setup CBCM in the |
| // management disclosures. |
| #if BUILDFLAG(IS_CHROMEOS) |
| BASE_FEATURE(kFlexOrgManagementDisclosure, |
| "FlexOrgManagementDisclosure", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| #else |
| BASE_FEATURE(kFlexOrgManagementDisclosure, |
| "FlexOrgManagementDisclosure", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| #endif // BUILDFLAG(IS_CHROMEOS) |
| |
| // Enables usage of the FedCM API without third party cookies at the same time. |
| BASE_FEATURE(kFedCmWithoutThirdPartyCookies, |
| "FedCmWithoutThirdPartyCookies", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Enables the Incoming Call Notifications scenario. When created by an |
| // installed origin, an incoming call notification should have increased |
| // priority, colored buttons, a ringtone, and a default "close" button. |
| // Otherwise, if the origin is not installed, it should behave like the default |
| // notifications, but with the added "Close" button. See |
| // https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/Notifications/notifications_actions_customization.md |
| BASE_FEATURE(kIncomingCallNotifications, |
| "IncomingCallNotifications", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Enables omnibox trigger prerendering. |
| BASE_FEATURE(kOmniboxTriggerForPrerender2, |
| "OmniboxTriggerForPrerender2", |
| base::FEATURE_ENABLED_BY_DEFAULT); |
| |
| // Enables bookmark trigger prerendering. |
| BASE_FEATURE(kBookmarkTriggerForPrerender2, |
| "BookmarkTriggerForPrerender2", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| BASE_FEATURE(kSupportSearchSuggestionForPrerender2, |
| "SupportSearchSuggestionForPrerender2", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| const base::FeatureParam<SearchSuggestionPrerenderImplementationType>::Option |
| search_suggestion_implementation_types[] = { |
| {SearchSuggestionPrerenderImplementationType::kUsePrefetch, |
| "use_prefetch"}, |
| {SearchSuggestionPrerenderImplementationType::kIgnorePrefetch, |
| "ignore_prefetch"}}; |
| const base::FeatureParam<SearchSuggestionPrerenderImplementationType> |
| kSearchSuggestionPrerenderImplementationTypeParam{ |
| &kSupportSearchSuggestionForPrerender2, "implementation_type", |
| SearchSuggestionPrerenderImplementationType::kIgnorePrefetch, |
| &search_suggestion_implementation_types}; |
| |
| const base::FeatureParam<SearchPreloadShareableCacheType>::Option |
| search_preload_shareable_cache_types[] = { |
| {SearchPreloadShareableCacheType::kEnabled, "enabled"}, |
| {SearchPreloadShareableCacheType::kDisabled, "disabled"}}; |
| const base::FeatureParam<SearchPreloadShareableCacheType> |
| kSearchPreloadShareableCacheTypeParam{ |
| &kSupportSearchSuggestionForPrerender2, "shareable_cache", |
| SearchPreloadShareableCacheType::kEnabled, |
| &search_preload_shareable_cache_types}; |
| |
| BASE_FEATURE(kAutocompleteActionPredictorConfidenceCutoff, |
| "AutocompleteActionPredictorConfidenceCutoff", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| // Enables omnibox trigger no state prefetch. Only one of |
| // kOmniboxTriggerForPrerender2 or kOmniboxTriggerForNoStatePrefetch can be |
| // enabled in the experiment. If both are enabled, only |
| // kOmniboxTriggerForPrerender2 takes effect. |
| // TODO(crbug.com/1267731): Remove this flag once the experiments are completed. |
| BASE_FEATURE(kOmniboxTriggerForNoStatePrefetch, |
| "OmniboxTriggerForNoStatePrefetch", |
| base::FEATURE_DISABLED_BY_DEFAULT); |
| |
| } // namespace features |
