chrome/common/chrome_features.cc

// Copyright 2016 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/common/chrome_features.h"

#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/strings/string_split.h"
#include "base/time/time.h"
#include "build/branding_buildflags.h"
#include "build/build_config.h"
#include "chrome/common/chrome_switches.h"

namespace features {

// All features in alphabetical order.

// Controls if page stability monitoring uses paint stability as a signal.
constexpr base::FeatureParam<ActorPaintStabilityMode>::Option
    kActorPaintStabilityModeOptions[] = {
        {ActorPaintStabilityMode::kDisabled, "disabled"},
        {ActorPaintStabilityMode::kLogOnly, "log-only"},
        {ActorPaintStabilityMode::kEnabled, "enabled"},
};
BASE_FEATURE_ENUM_PARAM(ActorPaintStabilityMode,
                        kActorPaintStabilityMode,
                        &kGlicActor,
                        "actor-paint-stability-mode",
                        ActorPaintStabilityMode::kLogOnly,
                        &kActorPaintStabilityModeOptions);
// Timeout controlling how long the paint stability monitor waits after the
// initial contentful paint before considering the UI to have stabilized.
const base::FeatureParam<base::TimeDelta>
    kActorPaintStabilityIntialPaintTimeout{
        &kGlicActor, "actor-paint-stability-initial-paint-timeout",
        base::Seconds(1)};
// Timeout controlling how long the paint stability monitor waits for subsequent
// contenful paints before considering the UI to have stabilized.
const base::FeatureParam<base::TimeDelta>
    kActorPaintStabilitySubsequentPaintTimeout{
        &kGlicActor, "actor-paint-stability-subsequent-paint-timeout",
        base::Milliseconds(500)};

#if BUILDFLAG(IS_WIN)
// When enabled, notifications from PWA's will use the PWA icon and name,
// as long as the PWA is on the start menu.  b/40285965.
BASE_FEATURE(kAppSpecificNotifications, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kDisableBoostPriority, base::FEATURE_DISABLED_BY_DEFAULT);
static constexpr base::FeatureParam<DisableBoostPriorityMode>::Option
    kDisableBoostPriorityOptions[] = {
        {DisableBoostPriorityMode::kAfterLoading, "AfterLoading"},
        {DisableBoostPriorityMode::kAtStartup, "AtStartup"}};
constinit const base::FeatureParam<DisableBoostPriorityMode>
    kDisableBoostPriorityMode{&kDisableBoostPriority, "mode",
                              DisableBoostPriorityMode::kAtStartup,
                              &kDisableBoostPriorityOptions};
#endif  // BUILDFLAG(IS_WIN)

#if BUILDFLAG(IS_MAC)
// Can be used to disable RemoteCocoa (hosting NSWindows for apps in the app
// process). For debugging purposes only.
BASE_FEATURE(kAppShimRemoteCocoa, base::FEATURE_ENABLED_BY_DEFAULT);

// This is used to control the new app close behavior on macOS wherein closing
// all windows for an app leaves the app running.
// https://crbug.com/1080729
BASE_FEATURE(kAppShimNewCloseBehavior, base::FEATURE_DISABLED_BY_DEFAULT);

// When enabled, app shims try to launch chrome silently if chrome isn't already
// running, rather than have chrome launch visibly with a new tab/profile
// selector.
// https://crbug.com/1205537
BASE_FEATURE(kAppShimLaunchChromeSilently, base::FEATURE_ENABLED_BY_DEFAULT);

// When enabled, notifications coming from PWAs will be displayed via their app
// shim processes, rather than directly by chrome.
// https://crbug.com/938661
BASE_FEATURE(kAppShimNotificationAttribution,
             base::FEATURE_DISABLED_BY_DEFAULT);

// When enabled, app shims used by PWAs will be signed with an ad-hoc signature
// https://crbug.com/40276068
BASE_FEATURE(kUseAdHocSigningForWebAppShims, base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_MAC)

#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || \
    BUILDFLAG(IS_CHROMEOS)
// Enables or disables the Autofill survey triggered by opening a prompt to
// save address info.
BASE_FEATURE(kAutofillAddressSurvey, base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Autofill survey triggered by opening a prompt to
// save credit card info.
BASE_FEATURE(kAutofillCardSurvey, base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Autofill survey triggered by opening a prompt to
// save password info.
BASE_FEATURE(kAutofillPasswordSurvey, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// Enables the Restart background mode optimization. When all Chrome UI is
// closed and it goes in the background, allows to restart the browser to
// discard memory.
BASE_FEATURE(kBackgroundModeAllowRestart, base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)

#if BUILDFLAG(IS_ANDROID)
// Enable boarding pass detector on Chrome Android.
BASE_FEATURE(kBoardingPassDetector, base::FEATURE_DISABLED_BY_DEFAULT);
const char kBoardingPassDetectorUrlParamName[] = "boarding_pass_detector_urls";
const base::FeatureParam<std::string> kBoardingPassDetectorUrlParam(
    &kBoardingPassDetector,
    kBoardingPassDetectorUrlParamName,
    "");
#endif  // BUILDFLAG(IS_ANDROID)

#if BUILDFLAG(IS_CHROMEOS)
// Enable Borealis on Chrome OS.
BASE_FEATURE(kBorealis, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_CHROMEOS)
// Enable project Crostini, Linux VMs on Chrome OS.
BASE_FEATURE(kCrostini, base::FEATURE_DISABLED_BY_DEFAULT);

// Enable advanced access controls for Crostini-related features
// (e.g. restricting VM CLI tools access, restricting Crostini root access).
BASE_FEATURE(kCrostiniAdvancedAccessControls,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables infrastructure for generating Ansible playbooks for the default
// Crostini container from software configurations in JSON schema.
BASE_FEATURE(kCrostiniAnsibleSoftwareManagement,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables support for sideloading android apps into Arc via crostini.
BASE_FEATURE(kCrostiniArcSideload, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// Enables stricter cryptography settings for CNSA2 compliance. This is not
// needed for security, but may be required by some organizations.
BASE_FEATURE(kCryptographyComplianceCnsa, base::FEATURE_DISABLED_BY_DEFAULT);

#if BUILDFLAG(IS_CHROMEOS)
// Enables distributed model for TPM1.2, i.e., using tpm_managerd and
// attestationd.
BASE_FEATURE(kCryptohomeDistributedModel, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables cryptohome UserDataAuth interface, a new dbus interface that is
// fully protobuf and uses libbrillo for dbus instead of the deprecated
// glib-dbus.
BASE_FEATURE(kCryptohomeUserDataAuth, base::FEATURE_DISABLED_BY_DEFAULT);

// Kill switch for cryptohome UserDataAuth interface. UserDataAuth is a new
// dbus interface that is fully protobuf and uses libbrillo for dbus instead
// instead of the deprecated glib-dbus.
BASE_FEATURE(kCryptohomeUserDataAuthKillswitch,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_CHROMEOS)
// Enables starting of Data Leak Prevention Files Daemon by sending the
// DLP policy there. The daemon might restrict access to some protected files.
BASE_FEATURE(kDataLeakPreventionFilesRestriction,
             base::FEATURE_ENABLED_BY_DEFAULT);
#endif

#if !BUILDFLAG(IS_ANDROID)
// Whether to allow installed-by-default web apps to be installed or not.
BASE_FEATURE(kPreinstalledWebAppInstallation,
             "DefaultWebAppInstallation",
             base::FEATURE_ENABLED_BY_DEFAULT);

// Whether to force migrate preinstalled web apps whenever the old Chrome app
// they're replacing is detected, even if the web app is already installed.
BASE_FEATURE(kPreinstalledWebAppAlwaysMigrate,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Whether to force migrate the calculator preinstalled web app whenever the
// old Chrome app is detected, even if the calculator web app is already
// installed.
BASE_FEATURE(kPreinstalledWebAppAlwaysMigrateCalculator,
             base::FEATURE_ENABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_CHROMEOS)
// If enabled, specified extensions cannot be closed via the task manager.
BASE_FEATURE(kDesktopTaskManagerEndProcessDisabledForExtension,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// Controls the enablement of structured metrics on Windows, Linux, and Mac.
BASE_FEATURE(kChromeStructuredMetrics, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables new fallback behaviour for Chrome profile creation controlled by
// a command line flag when Chrome is launched with profile-email switch.
BASE_FEATURE(kCreateProfileIfNoneExists, base::FEATURE_ENABLED_BY_DEFAULT);

// When enabled, allows parsing of `tab_group_color_palette` theme key, else
// ignores it.
BASE_FEATURE(kCustomizeTabGroupColorPalette, base::FEATURE_DISABLED_BY_DEFAULT);

// Moves the Extensions "puzzle piece" icon from the title bar into the app menu
// for web app windows.
BASE_FEATURE(kDesktopPWAsElidedExtensionsMenu,
#if BUILDFLAG(IS_CHROMEOS)
             base::FEATURE_ENABLED_BY_DEFAULT
#else
             base::FEATURE_DISABLED_BY_DEFAULT
#endif
);

// Enables or disables Desktop PWAs to be auto-started on OS login.
BASE_FEATURE(kDesktopPWAsRunOnOsLogin,
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || \
    BUILDFLAG(IS_CHROMEOS)
             base::FEATURE_ENABLED_BY_DEFAULT
#else
             base::FEATURE_DISABLED_BY_DEFAULT
#endif
);

// If enabled, allow-listed PWAs cannot be closed manually by the user.
BASE_FEATURE(kDesktopPWAsPreventClose,
#if BUILDFLAG(IS_CHROMEOS)
             base::FEATURE_ENABLED_BY_DEFAULT
#else
             base::FEATURE_DISABLED_BY_DEFAULT
#endif
);

BASE_FEATURE(kPwaNavigationCapturingWithScopeExtensions,
             "DesktopPWAsLinkCapturingWithScopeExtensions",
             base::FEATURE_DISABLED_BY_DEFAULT);

// Adds a user settings that allows PWAs to be opened with a tab strip.
BASE_FEATURE(kDesktopPWAsTabStripSettings, base::FEATURE_DISABLED_BY_DEFAULT);

// Allows fullscreen to claim whole display area when in windowing mode
#if BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kDisplayEdgeToEdgeFullscreen, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

// Enables Fullscreen to Screen on Android platform
#if BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kEnableFullscreenToAnyScreenAndroid,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
// Controls whether Chrome Apps are supported. See https://crbug.com/1221251.
// If the feature is disabled, Chrome Apps continue to work. If enabled, Chrome
// Apps will not launch and will be marked in the UI as deprecated.
BASE_FEATURE(kChromeAppsDeprecation, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables the new create shortcut flow where fire and forget entities are
// created from three dot menu > Save and Share > Create Shortcut instead of
// PWAs.
BASE_FEATURE(kShortcutsNotApps, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables the opening of the desktop and highlighting of the shortcut created
// as part of the new Create Shortcut flow. Requires kShortcutsNotApps to be
// enabled to work.
BASE_FEATURE(kShortcutsNotAppsRevealDesktop, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)

#if BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kFileTransferEnterpriseConnector,
             base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kFileTransferEnterpriseConnectorUI,
             base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kForcedAppRelaunchOnPlaceholderUpdate,
             base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// Controls whether the GeoLanguage system is enabled. GeoLanguage uses IP-based
// coarse geolocation to provide an estimate (for use by other Chrome features
// such as Translate) of the local/regional language(s) corresponding to the
// device's location. If this feature is disabled, the GeoLanguage provider is
// not initialized at startup, and clients calling it will receive an empty list
// of languages.
BASE_FEATURE(kGeoLanguage, base::FEATURE_DISABLED_BY_DEFAULT);

// Controls whether the actor component of Glic is enabled.
BASE_FEATURE(kGlicActor, base::FEATURE_ENABLED_BY_DEFAULT);

// Controls whether the Actor UI components are enabled.
BASE_FEATURE(kGlicActorUi, base::FEATURE_ENABLED_BY_DEFAULT);

const char kGlicActorUiTaskIconName[] = "glic-actor-ui-task-icon";
const char kGlicActorUiNudgeRedesignName[] = "glic-actor-ui-nudge-redesign";
const char kGlicActorUiOverlayName[] = "glic-actor-ui-overlay";
const char kGlicActorUiOverlayMagicCursorName[] =
    "glic-actor-ui-overlay-magic-cursor";
const char kGlicActorUiToastName[] = "glic-actor-ui-toast";
const char kGlicActorUiHandoffButtonName[] = "glic-actor-ui-handoff-button";
const char kGlicActorUiTabIndicatorName[] = "glic-actor-ui-tab-indicator";
const char kGlicActorUiBorderGlowName[] = "glic-actor-ui-border-glow";
const char kGlicActorUiStandaloneBorderGlowName[] =
    "glic-actor-ui-standalone-border-glow";
const char kGlicActorUiCompletedTaskExpiryDelaySecondsName[] =
    "glic-actor-completed-task-expiry-delay-seconds";

// Controls whether the task icon in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiTaskIcon{
    &kGlicActorUi, kGlicActorUiTaskIconName, true};
// Controls whether the new Nudge UI is enabled. No-op if `kGlicActorUiTaskIcon`
// is false.
const base::FeatureParam<bool> kGlicActorUiNudgeRedesign{
    &kGlicActorUi, kGlicActorUiNudgeRedesignName, false};
// Controls whether the Actor Overlay in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiOverlay{
    &kGlicActorUi, kGlicActorUiOverlayName, true};
// Controls whether the Magic Cursor in the Actor Overlay is enabled.
const base::FeatureParam<bool> kGlicActorUiOverlayMagicCursor{
    &kGlicActorUi, kGlicActorUiOverlayMagicCursorName, false};
// Controls whether the toast in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiToast{&kGlicActorUi,
                                                 kGlicActorUiToastName, true};
// Controls whether the handoff button in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiHandoffButton{
    &kGlicActorUi, kGlicActorUiHandoffButtonName, true};
// Controls whether the tab indicator in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiTabIndicator{
    &kGlicActorUi, kGlicActorUiTabIndicatorName, true};
// Controls whether the actor border glow in the actor ui is enabled.
const base::FeatureParam<bool> kGlicActorUiBorderGlow{
    &kGlicActorUi, kGlicActorUiBorderGlowName, true};
// Controls whether the actor border glow uses a standalone implementation or a
// shared implementation with context sharing glow.
const base::FeatureParam<bool> kGlicActorUiStandaloneBorderGlow{
    &kGlicActorUi, kGlicActorUiStandaloneBorderGlowName, false};
// Controls the expiry delay for completed tasks in the actor ui.
const base::FeatureParam<int> kGlicActorUiCompletedTaskExpiryDelaySeconds{
    &kGlicActorUi, kGlicActorUiCompletedTaskExpiryDelaySecondsName, 10};

// Controls renderer tool observation timeout when waiting on local
// (non-network) work.
const base::FeatureParam<base::TimeDelta> kGlicActorPageStabilityLocalTimeout{
    &kGlicActor, "glic-actor-page-stability-local-timeout", base::Seconds(3)};

// The overall observation timeout when waiting on a renderer tool to complete.
const base::FeatureParam<base::TimeDelta> kGlicActorPageStabilityTimeout{
    &kGlicActor, "glic-actor-page-stability-timeout", base::Seconds(4)};

// An artificial delay before signalling the tools that the page has become
// stable.
const base::FeatureParam<base::TimeDelta>
    kGlicActorPageStabilityInvokeCallbackDelay{
        &kGlicActor, "glic-actor-page-stability-invoke-callback-delay",
        base::Milliseconds(200)};

// The overall observation timeout when waiting for a tool to complete.
// This timeout is long but based on the NavigationToLoadEventFired UMA. This
// should be tuned with real world usage.
const base::FeatureParam<base::TimeDelta> kActorObservationDelayTimeout{
    &kGlicActor, "actor-observation-delay-timeout", base::Seconds(10)};

// Controls whether to enable general wait on renderer-side page stability.
constexpr base::FeatureParam<ActorGeneralPageStabilityMode>::Option
    kActorGeneralPageStabilityModeOptions[] = {
        {ActorGeneralPageStabilityMode::kDisabled, "disabled"},
        {ActorGeneralPageStabilityMode::kNavigateAndHistoryEnabled,
         "navigate-and-history-enabled"},
        {ActorGeneralPageStabilityMode::kAllEnabled, "all-enabled"},
};
BASE_FEATURE_ENUM_PARAM(ActorGeneralPageStabilityMode,
                        kActorGeneralPageStabilityMode,
                        &kGlicActor,
                        "actor-general-page-stability-mode",
                        ActorGeneralPageStabilityMode::kAllEnabled,
                        &kActorGeneralPageStabilityModeOptions);

// Controls whether typing happens incrementally.
BASE_FEATURE(kGlicActorIncrementalTyping, base::FEATURE_ENABLED_BY_DEFAULT);

const base::FeatureParam<base::TimeDelta> kGlicActorKeyDownDuration{
    &kGlicActorIncrementalTyping,
    "glic-actor-incremental-typing-key-down-duration", base::Milliseconds(5)};

const base::FeatureParam<base::TimeDelta> kGlicActorKeyUpDuration{
    &kGlicActorIncrementalTyping,
    "glic-actor-incremental-typing-key-up-duration", base::Milliseconds(5)};

const base::FeatureParam<bool> kGlicActorScrollTargetIntoView{
    &kGlicActor, "scroll-target-into-view", true};

BASE_FEATURE(kGlicActorPermissionsBypass, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicActorToctouValidation, base::FEATURE_ENABLED_BY_DEFAULT);

#if BUILDFLAG(ENABLE_GLIC)
// Controls whether the Glic feature is enabled.
// IMPORTANT: this feature should never be expired! It is used as the main
// kill-switch for Glic and can be used in the future to handle unsupported
// Chrome versions.
BASE_FEATURE(kGlic, base::FEATURE_DISABLED_BY_DEFAULT);

// Controls whether the Glic feature is always detached.
BASE_FEATURE(kGlicDetached, base::FEATURE_ENABLED_BY_DEFAULT);

// Controls whether the Glic feature uses multiple instances or not.
BASE_FEATURE(kGlicMultiInstance, base::FEATURE_DISABLED_BY_DEFAULT);
// Controls desired min width for the side panel. Not guaranteed to be respected
// if user manually resizes.
const base::FeatureParam<int> kGlicSidePanelMinWidth{
    &kGlicMultiInstance, "glic-side-panel-min-width", 384};

// Controls whether the Glic feature's z order changes based on the webclient
// mode.
BASE_FEATURE(kGlicZOrderChanges, base::FEATURE_DISABLED_BY_DEFAULT);

// Whether to sync @google.com account cookies. This is only for development and
// testing.
BASE_FEATURE(kGlicDevelopmentSyncGoogleCookies,
             "GlicDevelopmentCookies",
             base::FEATURE_DISABLED_BY_DEFAULT);

const base::FeatureParam<bool> kGlicStatusIconOpenMenuWithSecondaryClick{
    &kGlic, "open-status-icon-menu-with-secondary-click", true};

// Controls whether the simplified version of the border should be used.
BASE_FEATURE(kGlicForceSimplifiedBorder, base::FEATURE_DISABLED_BY_DEFAULT);

const base::FeatureParam<int> kGlicPreLoadingTimeMs{
    &kGlic, "glic-pre-loading-time-ms", 200};

const base::FeatureParam<int> kGlicMinLoadingTimeMs{
    &kGlic, "glic-min-loading-time-ms", 1000};

const base::FeatureParam<int> kGlicMaxLoadingTimeMs{
    &kGlic, "glic-max-loading-time-ms", 15000};

const base::FeatureParam<int> kGlicReloadMaxLoadingTimeMs{
    &kGlic, "glic-reload-max-loading-time-ms", 30000};

const base::FeatureParam<int> kGlicInitialWidth{&kGlic, "glic-initial-width",
                                                352};
const base::FeatureParam<int> kGlicInitialHeight{&kGlic, "glic-initial-height",
                                                 86};

const base::FeatureParam<int> kGlicFreInitialWidth{
    &kGlic, "glic-fre-initial-width", 512};
const base::FeatureParam<int> kGlicFreInitialHeight{
    &kGlic, "glic-fre-initial-height", 512};

// Quality value in the range [0, 100]. For use with gfx::JPEGCodec::Encode().
const base::FeatureParam<int> kGlicScreenshotEncodeQuality{
    &kGlic, "glic-screenshot-encode-quality", 100};

const base::FeatureParam<std::string> kGlicDefaultHotkey{
    &kGlic, "glic-default-hotkey", ""};

BASE_FEATURE(kGlicURLConfig, base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<std::string> kGlicGuestURL{
    &kGlicURLConfig, "glic-guest-url", "https://gemini.google.com/glic"};

BASE_FEATURE_PARAM(std::string,
                   kGlicUserStatusUrl,
                   &kGlicUserStatusCheck,
                   "glic-user-status-url",
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
                   "https://geminiweb-pa.googleapis.com/v1/glicStatus"
#else
                   ""
#endif
);

BASE_FEATURE_PARAM(base::TimeDelta,
                   kGlicUserStatusRequestDelay,
                   &kGlicUserStatusCheck,
                   "glic-user-status-request-delay",
                   base::Hours(23));

BASE_FEATURE_PARAM(std::string,
                   kGeminiOAuth2Scope,
                   &kGlicUserStatusCheck,
                   "glic-user-status-oauth2-scope",
                   "https://www.googleapis.com/auth/gemini");

BASE_FEATURE_PARAM(double,
                   kGlicUserStatusRequestDelayJitter,
                   &kGlicUserStatusCheck,
                   "glic-user-status-request-delay-jitter",
                   0.005);

constexpr base::FeatureParam<GlicEnterpriseCheckStrategy>::Option
    kGlicEnterpriseCheckStrategyOptions[] = {
        {GlicEnterpriseCheckStrategy::kPolicy, "policy"},
        {GlicEnterpriseCheckStrategy::kManaged, "managed"},
};
BASE_FEATURE_ENUM_PARAM(GlicEnterpriseCheckStrategy,
                        kGlicUserStatusEnterpriseCheckStrategy,
                        &kGlicUserStatusCheck,
                        "glic-user-status-enterprise-check-strategy",
                        GlicEnterpriseCheckStrategy::kManaged,
                        &kGlicEnterpriseCheckStrategyOptions);

// When true, the Glic API exposes a method to propose refreshing the
// user status.
BASE_FEATURE_PARAM(bool,
                   kGlicUserStatusRefreshApi,
                   &kGlicUserStatusCheck,
                   "glic-user-status-refresh-api",
                   true);

// The minimum time between user status update requests, when triggered by
// the Glic API (or another reason that might occur frequently).
BASE_FEATURE_PARAM(base::TimeDelta,
                   kGlicUserStatusThrottleInterval,
                   &kGlicUserStatusCheck,
                   "glic-user-status-throttle-interval",
                   base::Seconds(5));

BASE_FEATURE(kGlicFreURLConfig, base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE_PARAM(std::string,
                   kGlicFreURL,
                   &kGlicFreURLConfig,
                   "glic-fre-url",
                   "https://gemini.google.com/glic/intro?");

BASE_FEATURE(kGlicLearnMoreURLConfig, base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE_PARAM(std::string,
                   kGlicShortcutsLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-shortcuts-learn-more-url",
                   "");
BASE_FEATURE_PARAM(std::string,
                   kGlicLauncherToggleLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-shortcuts-launcher-toggle-learn-more-url",
                   "");
BASE_FEATURE_PARAM(std::string,
                   kGlicLocationToggleLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-shortcuts-location-toggle-learn-more-url",
                   "");
BASE_FEATURE_PARAM(std::string,
                   kGlicTabAccessToggleLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-shortcuts-tab-access-toggle-learn-more-url",
                   "");
BASE_FEATURE_PARAM(
    std::string,
    kGlicTabAccessToggleLearnMoreURLDataProtected,
    &kGlicLearnMoreURLConfig,
    "glic-shortcuts-tab-access-toggle-learn-more-url-data-protected",
    "");
BASE_FEATURE_PARAM(std::string,
                   kGlicDefaultTabAccessToggleLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-default-tab-access-toggle-learn-more-url",
                   "");
BASE_FEATURE_PARAM(
    std::string,
    kGlicDefaultTabAccessToggleLearnMoreURLDataProtected,
    &kGlicLearnMoreURLConfig,
    "glic-default-tab-access-toggle-learn-more-url-data-protected",
    "");
BASE_FEATURE_PARAM(std::string,
                   kGlicSettingsPageLearnMoreURL,
                   &kGlicLearnMoreURLConfig,
                   "glic-settings-page-learn-more-url",
                   "");
BASE_FEATURE_PARAM(std::string,
                   kGlicExtensionsManagementUrl,
                   &kGlicLearnMoreURLConfig,
                   "glic-extensions-management-url",
#if BUILDFLAG(GOOGLE_CHROME_BRANDING)
                   "https://gemini.google.com/apps"
#else
                   ""
#endif
);

BASE_FEATURE(kGlicCSPConfig, base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<std::string> kGlicAllowedOriginsOverride{
    &kGlicCSPConfig, "glic-allowed-origins-override",
    // Space-delimited set of allowed origins.
    "https://gemini.google.com https://www.google.com"};

// Enable/disable Glic web client responsiveness check feature.
BASE_FEATURE(kGlicClientResponsivenessCheck, base::FEATURE_ENABLED_BY_DEFAULT);
// TODO(crbug.com/402184931): Set appropriate default for the 3 following
// parameters.
// Time interval for periodically sending responsiveness check to the web client
// in milliseconds.
const base::FeatureParam<int> kGlicClientResponsivenessCheckIntervalMs{
    &kGlicClientResponsivenessCheck,
    "glic-client-responsiveness-check-interval-ms", 5000};
// Maximum time to wait for glicWebClientCheckResponsive response during a
// responsiveness check before flagging the web client as unresponsive.
const base::FeatureParam<int> kGlicClientResponsivenessCheckTimeoutMs{
    &kGlicClientResponsivenessCheck,
    "glic-client-responsiveness-check-timeout-ms", 500};
// Maximum time for showing client unresponsive UI before going to the error
// state.
const base::FeatureParam<int> kGlicClientUnresponsiveUiMaxTimeMs{
    &kGlicClientResponsivenessCheck, "glic-client-unresponsive-ui-max-time-ms",
    5000};
// When true, the responsiveness check will be ignored when the debugger is
// attached to the webview.
const base::FeatureParam<bool>
    kGlicClientResponsivenessCheckIgnoreWhenDebuggerAttached{
        &kGlicClientResponsivenessCheck,
        "glic-client-responsiveness-check-ignore-when-debugger-attached", true};

BASE_FEATURE(kGlicUseShaderCache, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicKeyboardShortcutNewBadge, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicAppMenuNewBadge, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicDebugWebview, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicScrollTo, base::FEATURE_DISABLED_BY_DEFAULT);

// Controls whether we enforce that documentId (an optional parameter) is set
// when trying to scroll all documents except PDFs (and fail the request if
// it's not set).
const base::FeatureParam<bool> kGlicScrollToEnforceDocumentId{
    &kGlicScrollTo, "glic-scroll-to-enforce-document-id", true};
// Expand the scrollTo capability to PDF documents.
const base::FeatureParam<bool> kGlicScrollToPDF{&kGlicScrollTo,
                                                "glic-scroll-to-pdf", false};
// Controls whether we enforce that url (an optional parameter) is set when
// trying to scroll a PDF document (and fail the request if it's not set).
const base::FeatureParam<bool> kGlicScrollToEnforceURLForPDF{
    &kGlicScrollTo, "glic-scroll-to-enforce-url-for-pdf", true};

BASE_FEATURE(kGlicWarming, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicDisableWarming, base::FEATURE_ENABLED_BY_DEFAULT);

// Killswitch that controls whether the guest WebContents visibility state is
// set to hidden when the Glic panel is warming.
BASE_FEATURE(kGlicGuestContentsVisibilityState,
#if BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
             base::FEATURE_ENABLED_BY_DEFAULT);
#else
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_MAC) ||  BUILDFLAG(IS_LINUX)

// Controls the amount of time from the GlicButtonController scheduling
// preload to the start of preloading (if preloading is possible).
const base::FeatureParam<int> kGlicWarmingDelayMs{
    &kGlicWarming, "glic-warming-delay-ms", 20 * 1000};

// Adds noise to the warming delay. The effective delay is increased by a
// random positive number of milliseconds between 0 and kGlicWarmingJitterMs.
const base::FeatureParam<int> kGlicWarmingJitterMs{
    &kGlicWarming, "glic-warming-jitter-ms", 10 * 1000};

BASE_FEATURE(kGlicFreWarming, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicWarmMultiple, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicTieredRollout, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicRollout, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicUserStatusCheck, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicClosedCaptioning, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicDefaultTabContextSetting, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicUnloadOnClose, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicApiActivationGating, base::FEATURE_ENABLED_BY_DEFAULT);

// When enabled, don't try to update the views background color based on the
// glic client background color.
BASE_FEATURE(kGlicExplicitBackgroundColor, base::FEATURE_ENABLED_BY_DEFAULT);

// Features to experiment with resetting the panel default location.
BASE_FEATURE(kGlicPanelResetTopChromeButton, base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<int> kGlicPanelResetTopChromeButtonDelayMs{
    &kGlicPanelResetTopChromeButton, "glic-panel-reset-delay-ms", 2500};
BASE_FEATURE(kGlicPanelResetOnStart, base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kGlicPanelSetPositionOnDrag, base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kGlicPanelResetOnSessionTimeout, base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<double> kGlicPanelResetOnSessionTimeoutDelayH{
    &kGlicPanelResetOnSessionTimeout,
    "glic-panel-reset-session-timeout-delay-h", 1};
BASE_FEATURE(kGlicPanelResetSizeAndLocationOnOpen,
             base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicPersonalContext, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicRecordActorJournal, base::FEATURE_ENABLED_BY_DEFAULT);
extern const base::FeatureParam<int> kGlicRecordActorJournalFeedbackProductId{
    &kGlicRecordActorJournal, "glic-record-actor-journal-feedback-product-id",
    5320395};
extern const base::FeatureParam<std::string>
    kGlicRecordActorJournalFeedbackCategoryTag{
        &kGlicRecordActorJournal,
        "glic-record-actor-journal-feedback-category-tag",
        "gemini_in_chrome_actor_tt_df"};

BASE_FEATURE(kGlicWebClientUnresponsiveMetrics,
             base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicParameterizedShader, base::FEATURE_ENABLED_BY_DEFAULT);
extern const base::FeatureParam<std::string> kGlicParameterizedShaderColors{
    &kGlicParameterizedShader, "glic-parameterized-shader-colors",
    "#3186FF#346BF1#4FA0FF#FF4641#FFCC00#0EBC5F"};
extern const base::FeatureParam<std::string> kGlicParameterizedShaderFloats{
    &kGlicParameterizedShader, "glic-parameterized-shader-floats",
    "5#0.1#0.3#0.7#1.0#0.5#0.5#0.3"};

BASE_FEATURE(kGlicTabFocusDataDedupDebounce, base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<int> kGlicTabFocusDataDebounceDelayMs{
    &kGlicTabFocusDataDedupDebounce, "glic-tab-focus-data-debounce-delay-ms",
    5};
const base::FeatureParam<int> kGlicTabFocusDataMaxDebounces{
    &kGlicTabFocusDataDedupDebounce, "glic-tab-focus-data-max-debounces", 5};

BASE_FEATURE(kGlicAssetsV2, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kGlicFaviconDataUrls, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicExtensions, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicMultitabUnderlines, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kGlicWindowDragRegions, base::FEATURE_DISABLED_BY_DEFAULT);

// When enabled, the X-Glic headers will be attached to requests as specified by
// the kGlicHeaderRequestTypes param.
BASE_FEATURE(kGlicHeader, base::FEATURE_ENABLED_BY_DEFAULT);

// Comma-separated list of request types to attach the X-Glic headers to.
// These must be valid values for the webRequest extensions API.
// Previously only "main_frame" was used.
const base::FeatureParam<std::string> kGlicHeaderRequestTypes{
    &kGlicHeader, "glic-header-request-types",
    "main_frame,xmlhttprequest,websocket"};

BASE_FEATURE(kGlicCaaGuestError, base::FEATURE_ENABLED_BY_DEFAULT);
extern const base::FeatureParam<std::string> kGlicCaaLinkUrl{
    &kGlicCaaGuestError, "glic-caa-link-url", "https://gemini.google.com/"};
extern const base::FeatureParam<std::string> kGlicCaaLinkText{
    &kGlicCaaGuestError, "glic-caa-link-text", "gemini.google.com"};
extern const base::FeatureParam<std::string> kGlicCaaGuestRedirectPatterns{
    &kGlicCaaGuestError, "glic-caa-redirect-patterns",
    "https://access.workspace.google.com https://admin.google.com "
    "https://accounts.google.com/info/servicerestricted"};

BASE_FEATURE(kGlicEntrypointVariations, base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<bool> kGlicEntrypointVariationsShowLabel{
    &kGlicEntrypointVariations, "glic-entrypoint-variations-show-label", false};
const base::FeatureParam<bool> kGlicEntrypointVariationsAltIcon{
    &kGlicEntrypointVariations, "glic-entrypoint-variations-alt-icon", false};
const base::FeatureParam<bool> kGlicEntrypointVariationsHighlightNudge{
    &kGlicEntrypointVariations, "glic-entrypoint-variations-highlight-nudge",
    false};

#endif  // BUILDFLAG(ENABLE_GLIC)

// Force Privacy Guide to be available even if it would be unavailable
// otherwise. This is meant for development and test purposes only.
BASE_FEATURE(kPrivacyGuideForceAvailable, base::FEATURE_DISABLED_BY_DEFAULT);

// Defines if the linked services setting is eligible to be shown in Chrome
// settings.
BASE_FEATURE(kLinkedServicesSetting, base::FEATURE_ENABLED_BY_DEFAULT);

#if !BUILDFLAG(IS_ANDROID)
// Enables or disables the Happiness Tracking System demo mode for Desktop
// Chrome.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopDemo,
             base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kHappinessTrackingSurveysConfiguration,
             base::FEATURE_ENABLED_BY_DEFAULT);

const base::FeatureParam<std::string> kHappinessTrackingSurveysHostedUrl{
    &kHappinessTrackingSurveysConfiguration, "custom-url",
    "https://www.google.com/chrome/hats/index_m129.html"};

// Enables or disables the Happiness Tracking System for COEP issues in Chrome
// DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesCOEP, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for Mixed Content issues in
// Chrome DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesMixedContent,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for same-site cookies
// issues in Chrome DevTools on Desktop.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopDevToolsIssuesCookiesSameSite,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for Heavy Ad issues in
// Chrome DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesHeavyAd,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for CSP issues in Chrome
// DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesCSP, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for Desktop Privacy Guide.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopPrivacyGuide,
             base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForDesktopPrivacyGuideTime{
        &kHappinessTrackingSurveysForDesktopPrivacyGuide, "settings-time",
        base::Seconds(20)};

// Enables or disables the Happiness Tracking System for Desktop Chrome
// Settings.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopSettings,
             base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForDesktopSettingsTime{
        &kHappinessTrackingSurveysForDesktopSettings, "settings-time",
        base::Seconds(20)};

// Enables or disables the Happiness Tracking System for Desktop Chrome
// Privacy Settings.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopSettingsPrivacy,
             base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<bool>
    kHappinessTrackingSurveysForDesktopSettingsPrivacyNoGuide{
        &kHappinessTrackingSurveysForDesktopSettingsPrivacy, "no-guide", false};
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForDesktopSettingsPrivacyTime{
        &kHappinessTrackingSurveysForDesktopSettingsPrivacy, "settings-time",
        base::Seconds(20)};

// Enables or disables the Happiness Tracking System for Desktop Chrome
// NTP Modules.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopNtpModules,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for History Embeddings.
BASE_FEATURE(kHappinessTrackingSurveysForHistoryEmbeddings,
             base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForHistoryEmbeddingsDelayTime(
        &kHappinessTrackingSurveysForHistoryEmbeddings,
        "HappinessTrackingSurveysForHistoryEmbeddingsDelayTime",
        base::Seconds(20));

BASE_FEATURE(kHappinessTrackingSurveysForNtpPhotosOptOut,
             "HappinessTrackingSurveysForrNtpPhotosOptOut",
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for Wallpaper Search.
BASE_FEATURE(kHappinessTrackingSurveysForWallpaperSearch,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the Happiness Tracking System for Chrome What's New.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopWhatsNew,
             base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForDesktopWhatsNewTime{
        &kHappinessTrackingSurveysForDesktopWhatsNew, "whats-new-time",
        base::Seconds(20)};

// Enables or disables the Happiness Tracking System for Chrome security page.
BASE_FEATURE(kHappinessTrackingSurveysForSecurityPage,
             base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
    kHappinessTrackingSurveysForSecurityPageTime{
        &kHappinessTrackingSurveysForSecurityPage, "security-page-time",
        base::Seconds(15)};
const base::FeatureParam<std::string>
    kHappinessTrackingSurveysForSecurityPageTriggerId{
        &kHappinessTrackingSurveysForSecurityPage, "security-page-trigger-id",
        ""};
const base::FeatureParam<bool>
    kHappinessTrackingSurveysForSecurityPageRequireInteraction{
        &kHappinessTrackingSurveysForSecurityPage,
        "security-page-require-interaction", false};
#endif  // !BUILDFLAG(IS_ANDROID)

#if BUILDFLAG(IS_CHROMEOS)
// Enables or disables the Happiness Tracking System for the General survey.
BASE_FEATURE(kHappinessTrackingSystem, base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Bluetooth revamp
// survey.
BASE_FEATURE(kHappinessTrackingSystemBluetoothRevamp,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Battery life
// survey.
BASE_FEATURE(kHappinessTrackingSystemBatteryLife,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Peripherals
// survey.
BASE_FEATURE(kHappinessTrackingSystemPeripherals,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Ent survey.
BASE_FEATURE(kHappinessTrackingSystemEnt, base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Stability survey.
BASE_FEATURE(kHappinessTrackingSystemStability,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Performance survey.
BASE_FEATURE(kHappinessTrackingSystemPerformance,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Onboarding Experience.
BASE_FEATURE(kHappinessTrackingSystemOnboarding,
             "HappinessTrackingOnboardingExperience",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for ARC Games survey.
BASE_FEATURE(kHappinessTrackingSystemArcGames,
             "HappinessTrackingArcGames",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Audio survey.
BASE_FEATURE(kHappinessTrackingSystemAudio,
             "HappinessTrackingAudio",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Audio Output
// Processing.
BASE_FEATURE(kHappinessTrackingSystemAudioOutputProc,
             "HappinessTrackingAudioOutputProc",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Bluetooth Audio survey.
BASE_FEATURE(kHappinessTrackingSystemBluetoothAudio,
             "HappinessTrackingBluetoothAudio",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Avatar survey.
BASE_FEATURE(kHappinessTrackingPersonalizationAvatar,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Screensaver survey.
BASE_FEATURE(kHappinessTrackingPersonalizationScreensaver,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Wallpaper survey.
BASE_FEATURE(kHappinessTrackingPersonalizationWallpaper,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Media App PDF survey.
BASE_FEATURE(kHappinessTrackingMediaAppPdf, base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Camera App survey.
BASE_FEATURE(kHappinessTrackingSystemCameraApp,
             "HappinessTrackingCameraApp",
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Photos Experience survey.
BASE_FEATURE(kHappinessTrackingPhotosExperience,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for General Camera survey.
BASE_FEATURE(kHappinessTrackingGeneralCamera,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Prioritized General Camera survey.
BASE_FEATURE(kHappinessTrackingGeneralCameraPrioritized,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for OS Settings Search survey.
BASE_FEATURE(kHappinessTrackingOsSettingsSearch,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Borealis games survey.
BASE_FEATURE(kHappinessTrackingBorealisGames,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for ChromeOS Launcher survey. This
// survey is enabled to 25% of users.
BASE_FEATURE(kHappinessTrackingLauncherAppsFinding,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for ChromeOS Launcher survey. This
// survey is enabled to 75% of users.
BASE_FEATURE(kHappinessTrackingLauncherAppsNeeding,
             base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for the Office integration.
BASE_FEATURE(kHappinessTrackingOffice, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

// Enables HTTPS-First Mode in a balanced configuration that doesn't warn on
// HTTP when HTTPS can't be reasonably expected.
BASE_FEATURE(kHttpsFirstBalancedMode, base::FEATURE_ENABLED_BY_DEFAULT);

// Automatically enables HTTPS-First Mode in a balanced configuration when
// possible.
BASE_FEATURE(kHttpsFirstBalancedModeAutoEnable,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Kill switch for crbug.com/1414633.
BASE_FEATURE(kHttpsFirstModeForAdvancedProtectionUsers,
             "HttpsOnlyModeForAdvancedProtectionUsers",
             base::FEATURE_ENABLED_BY_DEFAULT);

// Enables HTTPS-First Mode for engaged sites. No-op if HttpsFirstModeV2 or
// HTTPS-Upgrades is disabled.
BASE_FEATURE(kHttpsFirstModeV2ForEngagedSites,
             base::FEATURE_ENABLED_BY_DEFAULT);

// Enables HTTPS-First Mode for typically secure users. No-op if
// HttpsFirstModeV2 or HTTPS-Upgrades is disabled.
BASE_FEATURE(kHttpsFirstModeV2ForTypicallySecureUsers,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables automatically upgrading main frame navigations to HTTPS.
BASE_FEATURE(kHttpsUpgrades, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables HTTPS-First Mode by default in Incognito Mode. (The related feature
// kHttpsFirstModeIncognitoNewSettings controls whether new settings controls
// are available for opting out of this default behavior.)
BASE_FEATURE(kHttpsFirstModeIncognito, base::FEATURE_ENABLED_BY_DEFAULT);

// Changes the binary opt-in to HTTPS-First Mode with a tri-state setting (HFM
// everywhere, HFM in Incognito, or no HFM) with HFM-in-Incognito the new
// default setting. This feature is dependent on kHttpsFirstModeIncognito.
BASE_FEATURE(kHttpsFirstModeIncognitoNewSettings,
             base::FEATURE_DISABLED_BY_DEFAULT);

#if BUILDFLAG(IS_MAC)
// Enables immersive fullscreen. The tab strip and toolbar are placed underneath
// the titlebar. The tab strip and toolbar can auto hide and reveal.
BASE_FEATURE(kImmersiveFullscreen, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables immersive fullscreen mode for PWA windows. PWA windows will use
// immersive fullscreen mode if and only if both this and kImmersiveFullscreen
// are enabled. PWA windows currently do not use ImmersiveFullscreenTabs even if
// the feature is enabled.
BASE_FEATURE(kImmersiveFullscreenPWAs, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_MAC)

// If enabled, enables API-specific interventions for web content rendered in
// Incognito profiles.
BASE_FEATURE(kIncognitoFingerprintingInterventions,
             base::FEATURE_DISABLED_BY_DEFAULT);

#if !BUILDFLAG(IS_ANDROID)
// A feature that controls whether Instant uses a spare renderer.
BASE_FEATURE(kInstantUsesSpareRenderer, base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // !BUILDFLAG(IS_ANDROID)

// Enables Isolated Web App Developer Mode, which allows developers to
// install untrusted Isolated Web Apps.
BASE_FEATURE(kIsolatedWebAppDevMode, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables users on unmanaged devices to install Isolated Web Apps.
BASE_FEATURE(kIsolatedWebAppUnmanagedInstall,
             base::FEATURE_DISABLED_BY_DEFAULT);

#if BUILDFLAG(IS_CHROMEOS)
// Enables users to install isolated web apps in managed guest sessions.
BASE_FEATURE(kIsolatedWebAppManagedGuestSessionInstall,
             base::FEATURE_ENABLED_BY_DEFAULT);

// Enables bundle cache for isolated web apps in kiosk and managed guest
// session.
BASE_FEATURE(kIsolatedWebAppBundleCache, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// When enabled, allows other features to use the k-Anonymity Service.
BASE_FEATURE(kKAnonymityService, base::FEATURE_ENABLED_BY_DEFAULT);

// Origin to use for requests to the k-Anonymity Auth server to get trust
// tokens.
constexpr base::FeatureParam<std::string> kKAnonymityServiceAuthServer{
    &kKAnonymityService, "KAnonymityServiceAuthServer",
    "https://chromekanonymityauth-pa.googleapis.com/"};

// Origin to use as a relay for OHTTP requests to the k-Anonymity Join server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceJoinRelayServer{
    &kKAnonymityService, "KAnonymityServiceJoinRelayServer",
    "https://google-ohttp-relay-join.fastly-edge.com/"};

// Origin to use to notify the k-Anonymity Join server of group membership.
constexpr base::FeatureParam<std::string> kKAnonymityServiceJoinServer{
    &kKAnonymityService, "KAnonymityServiceJoinServer",
    "https://chromekanonymity-pa.googleapis.com/"};

// Minimum amount of time allowed between notifying the Join server of
// membership in a distinct group.
constexpr base::FeatureParam<base::TimeDelta> kKAnonymityServiceJoinInterval{
    &kKAnonymityService, "KAnonymityServiceJoinInterval", base::Days(1)};

// Origin to use as a relay for OHTTP requests to the k-Anonymity Query server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceQueryRelayServer{
    &kKAnonymityService, "KAnonymityServiceQueryRelayServer",
    "https://google-ohttp-relay-query.fastly-edge.com/"};

// Origin to use to request k-anonymity status from the k-Anonymity Query
// server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceQueryServer{
    &kKAnonymityService, "KAnonymityServiceQueryServer",
    "https://chromekanonymityquery-pa.googleapis.com/"};

// Minimum amount of time allowed between requesting k-anonymity status from the
// Query server for a distinct group.
constexpr base::FeatureParam<base::TimeDelta> kKAnonymityServiceQueryInterval{
    &kKAnonymityService, "KAnonymityServiceQueryInterval", base::Days(1)};

// When enabled, the k-Anonymity Service will send requests to the Join and
// Query k-anonymity servers.
BASE_FEATURE(kKAnonymityServiceOHTTPRequests, base::FEATURE_ENABLED_BY_DEFAULT);

// When enabled, the k-Anonymity Service can use a persistent storage to cache
// public keys.
BASE_FEATURE(kKAnonymityServiceStorage, base::FEATURE_ENABLED_BY_DEFAULT);

#if BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kLinuxLowMemoryMonitor, base::FEATURE_DISABLED_BY_DEFAULT);
// Values taken from the low-memory-monitor documentation and also apply to the
// portal API:
// https://hadess.pages.freedesktop.org/low-memory-monitor/gdbus-org.freedesktop.LowMemoryMonitor.html
constexpr base::FeatureParam<int> kLinuxLowMemoryMonitorModerateLevel{
    &kLinuxLowMemoryMonitor, "moderate_level", 50};
constexpr base::FeatureParam<int> kLinuxLowMemoryMonitorCriticalLevel{
    &kLinuxLowMemoryMonitor, "critical_level", 255};
#endif  // BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN)
BASE_FEATURE(kListWebAppsSwitch, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_CHROMEOS)
// Whether to show the Hidden toggle in Settings, allowing users to toggle
// whether to treat a WiFi network as having a hidden ssid.
BASE_FEATURE(kShowHiddenNetworkToggle, base::FEATURE_ENABLED_BY_DEFAULT);
#endif

// Enables the use of system notification centers instead of using the Message
// Center for displaying the toasts. The feature is hardcoded to enabled for
// Chrome OS.
BASE_FEATURE(kNativeNotifications, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kSystemNotifications, base::FEATURE_ENABLED_BY_DEFAULT);

#if BUILDFLAG(IS_MAC)
// Enables the usage of Apple's new Notification API.
BASE_FEATURE(kNewMacNotificationAPI, base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_MAC)

#if BUILDFLAG(IS_CHROMEOS)
// Enables new UX for files policy restrictions on ChromeOS.
BASE_FEATURE(kNewFilesPolicyUX, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// When kNoReferrers is enabled, most HTTP requests will provide empty
// referrers instead of their ordinary behavior.
BASE_FEATURE(kNoReferrers, base::FEATURE_DISABLED_BY_DEFAULT);

#if BUILDFLAG(IS_WIN)
// Changes behavior of requireInteraction for notifications. Instead of staying
// on-screen until dismissed, they are instead shown for a very long time.
BASE_FEATURE(kNotificationDurationLongForRequireInteraction,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_WIN)

#if BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kOfflineAutoFetch, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_ANDROID)

#if BUILDFLAG(ENABLE_EXTENSIONS_CORE)
BASE_FEATURE(kOnConnectNative, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_ANDROID)
// Enables or disables the OOM intervention.
BASE_FEATURE(kOomIntervention, base::FEATURE_ENABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_WIN)
// Changes behavior of App Launch Prefetch to ignore chrome browser launches
// after acquiry of the singleton.
BASE_FEATURE(kOverridePrefetchOnSingleton, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_CHROMEOS)
// Enable support for "Plugin VMs" on Chrome OS.
BASE_FEATURE(kPluginVm, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

// Allows Chrome to do preconnect when prerender fails.
BASE_FEATURE(kPrerenderFallbackToPreconnect, base::FEATURE_ENABLED_BY_DEFAULT);

#if BUILDFLAG(IS_CHROMEOS)
// Enable the ChromeOS print preview to be opened instead of the browser print
// preview.
BASE_FEATURE(kPrintPreviewCrosPrimary, base::FEATURE_DISABLED_BY_DEFAULT);

// If enabled, use managed per-printer print job options set via
// DevicePrinters/PrinterBulkConfiguration policy in print preview.
BASE_FEATURE(kUseManagedPrintJobOptionsInPrintPreview,
             base::FEATURE_ENABLED_BY_DEFAULT);
#endif

// Enables or disables push subscriptions keeping Chrome running in the
// background when closed.
BASE_FEATURE(kPushMessagingBackgroundMode, base::FEATURE_DISABLED_BY_DEFAULT);

// Shows a confirmation dialog when updates to a PWAs icon has been detected.
BASE_FEATURE(kPwaUpdateDialogForIcon, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables using quiet prompts for notification permission requests.
BASE_FEATURE(kQuietNotificationPrompts, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables recording additional web app related debugging data to be displayed
// in: chrome://web-app-internals
BASE_FEATURE(kRecordWebAppDebugInfo, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables notification permission revocation for abusive origins.
BASE_FEATURE(kAbusiveNotificationPermissionRevocation,
             "AbusiveOriginNotificationPermissionRevocation",
             base::FEATURE_ENABLED_BY_DEFAULT);

#if BUILDFLAG(IS_CHROMEOS)
// Enables permanent removal of Legacy Supervised Users on startup.
BASE_FEATURE(kRemoveSupervisedUsersOnStartup,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(ENABLE_EXTENSIONS_CORE)
BASE_FEATURE(kSafetyHubExtensionsUwSTrigger, base::FEATURE_ENABLED_BY_DEFAULT);
// Enables extensions that do not display proper privacy practices in the
// Safety Hub Extension Reivew Panel.
BASE_FEATURE(kSafetyHubExtensionsNoPrivacyPracticesTrigger,
             base::FEATURE_ENABLED_BY_DEFAULT);
// Enables offstore extensions to be shown in the Safety Hub Extension
// review panel.
BASE_FEATURE(kSafetyHubExtensionsOffStoreTrigger,
             base::FEATURE_ENABLED_BY_DEFAULT);
#endif

BASE_FEATURE(kSafetyHubThreeDotDetails, base::FEATURE_ENABLED_BY_DEFAULT);

BASE_FEATURE(kSafetyHubDisruptiveNotificationRevocation,
             base::FEATURE_DISABLED_BY_DEFAULT);

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationExperimentVersion{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"experiment_version", /*default_value=*/0};

constexpr base::FeatureParam<bool>
    kSafetyHubDisruptiveNotificationRevocationShadowRun{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"shadow_run", /*default_value=*/true};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationMinNotificationCount{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"min_notification_count", /*default_value=*/3};

constexpr base::FeatureParam<double>
    kSafetyHubDisruptiveNotificationRevocationMaxEngagementScore{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"max_engagement_score", /*default_value=*/0.0};

constexpr base::FeatureParam<base::TimeDelta>
    kSafetyHubDisruptiveNotificationRevocationWaitingTimeAsProposed{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"waiting_time_as_proposed", /*default_value=*/base::Days(0)};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationNotificationTimeoutSeconds{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"notification_timeout_seconds",
        /*default_value=*/7 * 24 * 3600};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationMinFalsePositiveCooldown{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"min_false_positive_cooldown", /*default_value=*/0};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationMaxFalsePositivePeriod{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"max_false_positive_period", /*default_value=*/14};

// TODO(crbug.com/406472515): Site engagement score increase on navigation
// happens at the same time as us detecting the navigation. If the score delta
// is 0, the initial navigation won't trigger marking the site as false
// positive.
constexpr base::FeatureParam<double>
    kSafetyHubDisruptiveNotificationRevocationMinSiteEngagementScoreDelta{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"min_engagement_score_delta", /*default_value=*/0.0};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationUserRegrantWaitingPeriod{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"user_regrant_waiting_period", /*default_value=*/7};

constexpr base::FeatureParam<int>
    kSafetyHubDisruptiveNotificationRevocationWaitingForMetricsDays{
        &kSafetyHubDisruptiveNotificationRevocation,
        /*name=*/"waiting_for_metrics_days", /*default_value=*/7};

#if BUILDFLAG(IS_ANDROID)
// Enables Safety Hub card in magic stack.
BASE_FEATURE(kSafetyHubMagicStack, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables Safety Hub followup work.
BASE_FEATURE(kSafetyHubFollowup, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables Safety Hub organic HaTS survey on Android.
BASE_FEATURE(kSafetyHubAndroidOrganicSurvey, base::FEATURE_DISABLED_BY_DEFAULT);

constexpr base::FeatureParam<std::string> kSafetyHubAndroidOrganicTriggerId(
    &kSafetyHubAndroidOrganicSurvey,
    "trigger_id",
    /*default_value=*/
    "");

// Enables Safety Hub HaTS survey on Android.
BASE_FEATURE(kSafetyHubAndroidSurvey, base::FEATURE_DISABLED_BY_DEFAULT);

constexpr base::FeatureParam<std::string> kSafetyHubAndroidTriggerId(
    &kSafetyHubAndroidSurvey,
    "trigger_id",
    /*default_value=*/"");

// Enables new triggers for the Safety Hub HaTS survey on Android.
BASE_FEATURE(kSafetyHubAndroidSurveyV2, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables Weak and Reused passwords in Safety Hub.
BASE_FEATURE(kSafetyHubWeakAndReusedPasswords,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables the local passwords module in Safety Hub.
BASE_FEATURE(kSafetyHubLocalPasswordsModule, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables the unified passwords module in Safety Hub.
BASE_FEATURE(kSafetyHubUnifiedPasswordsModule,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_ANDROID)

#if !BUILDFLAG(IS_ANDROID)
// Enables Safety Hub services on start up feature.
BASE_FEATURE(kSafetyHubServicesOnStartUp, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables or disables the Trust Safety Sentiment Survey for Safety Hub.
BASE_FEATURE(kSafetyHubTrustSafetySentimentSurvey,
             "TrustSafetySentimentSurveyForSafetyHub",
             base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables the A/B Experiment Survey for Safety Hub.
BASE_FEATURE(kSafetyHubHaTSOneOffSurvey, base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<std::string>
    kHatsSurveyTriggerSafetyHubOneOffExperimentControlTriggerId{
        &kSafetyHubHaTSOneOffSurvey, "safety-hub-ab-control-trigger-id", ""};
const base::FeatureParam<std::string>
    kHatsSurveyTriggerSafetyHubOneOffExperimentNotificationTriggerId{
        &kSafetyHubHaTSOneOffSurvey, "safety-hub-ab-notification-trigger-id",
        ""};
const base::FeatureParam<std::string>
    kHatsSurveyTriggerSafetyHubOneOffExperimentInteractionTriggerId{
        &kSafetyHubHaTSOneOffSurvey, "safety-hub-ab-interaction-trigger-id",
        ""};
#endif  // !BUILDFLAG(IS_ANDROID)

// Controls whether SCT audit reports are queued and the rate at which they
// should be sampled. Default sampling rate is 1/10,000 certificates.
#if BUILDFLAG(GOOGLE_CHROME_BRANDING) && !BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kSCTAuditing, base::FEATURE_ENABLED_BY_DEFAULT);
#else
// This requires backend infrastructure and a data collection policy.
// Non-Chrome builds should not use Chrome's infrastructure.
BASE_FEATURE(kSCTAuditing, base::FEATURE_DISABLED_BY_DEFAULT);
#endif
constexpr base::FeatureParam<double> kSCTAuditingSamplingRate{
    &kSCTAuditing, "sampling_rate", 0.0001};

// SCT auditing hashdance allows Chrome clients who are not opted-in to Enhanced
// Safe Browsing Reporting to perform a k-anonymous query to see if Google knows
// about an SCT seen in the wild. If it hasn't been seen, then it is considered
// a security incident and uploaded to Google.
BASE_FEATURE(kSCTAuditingHashdance, base::FEATURE_ENABLED_BY_DEFAULT);

// An estimated high bound for the time it takes Google to ingest updates to an
// SCT log. Chrome will wait for at least this time plus the Log's Maximum Merge
// Delay after an SCT's timestamp before performing a hashdance lookup query.
const base::FeatureParam<base::TimeDelta> kSCTLogExpectedIngestionDelay{
    &kSCTAuditingHashdance,
    "sct_log_expected_ingestion_delay",
    base::Hours(1),
};

// A random delay will be added to the expected log ingestion delay between zero
// and this maximum. This prevents a burst of queries once a new SCT is issued.
const base::FeatureParam<base::TimeDelta> kSCTLogMaxIngestionRandomDelay{
    &kSCTAuditingHashdance,
    "sct_log_max_ingestion_random_delay",
    base::Hours(1),
};

// Alternative to switches::kSitePerProcess, for turning on full site isolation.
// Launch bug: https://crbug.com/810843.  This is a //chrome-layer feature to
// avoid turning on site-per-process by default for *all* //content embedders
// (e.g. this approach lets ChromeCast avoid site-per-process mode).
//
// TODO(alexmos): Move this and the other site isolation features below to
// browser_features, as they are only used on the browser side.
BASE_FEATURE(kSitePerProcess,
#if BUILDFLAG(IS_ANDROID) && !BUILDFLAG(ENABLE_ANDROID_SITE_ISOLATION)
             base::FEATURE_DISABLED_BY_DEFAULT
#else
             base::FEATURE_ENABLED_BY_DEFAULT
#endif
);

// The default behavior to opt devtools users out of
// kProcessPerSiteUpToMainFrameThreshold.
BASE_FEATURE(kProcessPerSiteSkipDevtoolsUsers,
             base::FEATURE_ENABLED_BY_DEFAULT);

// The default behavior to opt enterprise users out of
// kProcessPerSiteUpToMainFrameThreshold.
BASE_FEATURE(kProcessPerSiteSkipEnterpriseUsers,
             base::FEATURE_ENABLED_BY_DEFAULT);

// Restricts "ProcessPerSiteUpToMainFrameThreshold" to the default search
// engine. Has no effect if "ProcessPerSiteUpToMainFrameThreshold" is disabled.
// Note: The "ProcessPerSiteUpToMainFrameThreshold" feature is defined in
// //content.
BASE_FEATURE(kProcessPerSiteForDSE, base::FEATURE_DISABLED_BY_DEFAULT);

// Consider the default search engine (DSE) warmup page as a search results page
// (SRP), for the purpose of applying the "process per site for DSE SRP" policy
// (`kProcessPerSiteForDSE`).
BASE_FEATURE(kConsiderDSEWarmUpPageAsSRP, base::FEATURE_DISABLED_BY_DEFAULT);

#if BUILDFLAG(IS_CHROMEOS)
// Enables the SkyVault (cloud-first) changes, some of which are also controlled
// by policies: removing local storage, saving downloads and screen captures to
// the cloud, and related UX changes, primarily in the Files App.
BASE_FEATURE(kSkyVault, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables the SkyVault V2 changes, which are also controlled by policies:
// LocalUserFilesAllowed, DownloadDirectory and ScreenCaptureLocation.
BASE_FEATURE(kSkyVaultV2, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables the SkyVault V3 changes, which improve the resilience of file uploads
// and error handling.
BASE_FEATURE(kSkyVaultV3, base::FEATURE_ENABLED_BY_DEFAULT);

// Enables or disables SmartDim on Chrome OS.
BASE_FEATURE(kSmartDim, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables chrome://sys-internals.
BASE_FEATURE(kSysInternals, base::FEATURE_DISABLED_BY_DEFAULT);

// Enables or disables TPM firmware update capability on Chrome OS.
BASE_FEATURE(kTPMFirmwareUpdate, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

#if !BUILDFLAG(IS_ANDROID)
// Enables the Support Tool to include a screenshot in the exported support tool
// packet.
BASE_FEATURE(kSupportToolScreenshot, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

// Disable downloads of unsafe file types over insecure transports if initiated
// from a secure page. As of M89, mixed downloads are blocked on all platforms.
BASE_FEATURE(kTreatUnsafeDownloadsAsActive, base::FEATURE_ENABLED_BY_DEFAULT);

// TrustSafetySentimentSurvey
#if !BUILDFLAG(IS_ANDROID)
// Enables surveying of users of Trust & Safety features with HaTS.
BASE_FEATURE(kTrustSafetySentimentSurvey, base::FEATURE_DISABLED_BY_DEFAULT);
// The minimum and maximum time after a user has interacted with a Trust and
// Safety they are eligible to be surveyed.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyMinTimeToPrompt{
        &kTrustSafetySentimentSurvey, "min-time-to-prompt", base::Minutes(2)};
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyMaxTimeToPrompt{
        &kTrustSafetySentimentSurvey, "max-time-to-prompt", base::Minutes(60)};
// The maximum and minimum range for the random number of NTPs that the user
// must at least visit after interacting with a Trust and Safety feature to be
// eligible for a survey.
const base::FeatureParam<int> kTrustSafetySentimentSurveyNtpVisitsMinRange{
    &kTrustSafetySentimentSurvey, "ntp-visits-min-range", 2};
const base::FeatureParam<int> kTrustSafetySentimentSurveyNtpVisitsMaxRange{
    &kTrustSafetySentimentSurvey, "ntp-visits-max-range", 4};
// The feature area probabilities for each feature area considered as part of
// the Trust & Safety sentiment survey.
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyPrivacySettingsProbability{
        &kTrustSafetySentimentSurvey, "privacy-settings-probability", 0.6};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyTrustedSurfaceProbability{
        &kTrustSafetySentimentSurvey, "trusted-surface-probability", 0.4};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyTransactionsProbability{
        &kTrustSafetySentimentSurvey, "transactions-probability", 0.05};
// The HaTS trigger IDs, which determine which survey is delivered from the HaTS
// backend.
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyPrivacySettingsTriggerId{
        &kTrustSafetySentimentSurvey, "privacy-settings-trigger-id", ""};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyTrustedSurfaceTriggerId{
        &kTrustSafetySentimentSurvey, "trusted-surface-trigger-id", ""};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyTransactionsTriggerId{
        &kTrustSafetySentimentSurvey, "transactions-trigger-id", ""};
// The time the user must remain on settings after interacting with a privacy
// setting to be considered.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyPrivacySettingsTime{&kTrustSafetySentimentSurvey,
                                                   "privacy-settings-time",
                                                   base::Seconds(20)};
// The time the user must have the Trusted Surface bubble open to be considered.
// Alternatively the user can interact with the bubble, in which case this time
// is irrelevant.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyTrustedSurfaceTime{
        &kTrustSafetySentimentSurvey, "trusted-surface-time", base::Seconds(5)};
// The time the user must remain on settings after visiting the password
// manager page.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyTransactionsPasswordManagerTime{
        &kTrustSafetySentimentSurvey, "transactions-password-manager-time",
        base::Seconds(20)};

#endif

// TrustSafetySentimentSurveyV2
#if !BUILDFLAG(IS_ANDROID)
// Enables the second version of the sentiment survey for users of Trust &
// Safety features, using HaTS.
BASE_FEATURE(kTrustSafetySentimentSurveyV2, base::FEATURE_ENABLED_BY_DEFAULT);
// The minimum and maximum time after a user has interacted with a Trust and
// Safety feature that they are eligible to be surveyed.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyV2MinTimeToPrompt{
        &kTrustSafetySentimentSurveyV2, "min-time-to-prompt", base::Minutes(2)};
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyV2MaxTimeToPrompt{&kTrustSafetySentimentSurveyV2,
                                                 "max-time-to-prompt",
                                                 base::Minutes(60)};
// The maximum and minimum range for the random number of NTPs that the user
// must at least visit after interacting with a Trust and Safety feature to be
// eligible for a survey.
const base::FeatureParam<int> kTrustSafetySentimentSurveyV2NtpVisitsMinRange{
    &kTrustSafetySentimentSurveyV2, "ntp-visits-min-range", 2};
const base::FeatureParam<int> kTrustSafetySentimentSurveyV2NtpVisitsMaxRange{
    &kTrustSafetySentimentSurveyV2, "ntp-visits-max-range", 4};
// The minimum time that has to pass in the current session before a user can be
// eligible to be considered for the baseline control group.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyV2MinSessionTime{
        &kTrustSafetySentimentSurveyV2, "min-session-time", base::Seconds(30)};
// The feature area probabilities for each feature area considered as part of
// the Trust & Safety sentiment survey.
// TODO(crbug.com/40245476): Calculate initial probabilities and remove 0.0
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2BrowsingDataProbability{
        &kTrustSafetySentimentSurveyV2, "browsing-data-probability", 0.006};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2ControlGroupProbability{
        &kTrustSafetySentimentSurveyV2, "control-group-probability", 0.000025};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2DownloadWarningUIProbability{
        &kTrustSafetySentimentSurveyV2, "download-warning-ui-probability",
        0.05213384};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2PasswordCheckProbability{
        &kTrustSafetySentimentSurveyV2, "password-check-probability", 0.195};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2PasswordProtectionUIProbability{
        &kTrustSafetySentimentSurveyV2, "password-protection-ui-probability",
        0.5};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2SafetyCheckProbability{
        &kTrustSafetySentimentSurveyV2, "safety-check-probability", 0.12121};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2SafetyHubNotificationProbability{
        &kTrustSafetySentimentSurveyV2, "safety-hub-notification-probability",
        0.0};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2SafetyHubInteractionProbability{
        &kTrustSafetySentimentSurveyV2, "safety-hub-interaction-probability",
        0.0};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2TrustedSurfaceProbability{
        &kTrustSafetySentimentSurveyV2, "trusted-surface-probability",
        0.012685};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2PrivacyGuideProbability{
        &kTrustSafetySentimentSurveyV2, "privacy-guide-probability", 0.5};
const base::FeatureParam<double>
    kTrustSafetySentimentSurveyV2SafeBrowsingInterstitialProbability{
        &kTrustSafetySentimentSurveyV2,
        "safe-browsing-interstitial-probability", 0.18932671};
// The HaTS trigger IDs, which determine which survey is delivered from the HaTS
// backend.
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2BrowsingDataTriggerId{
        &kTrustSafetySentimentSurveyV2, "browsing-data-trigger-id",
        "1iSgej9Tq0ugnJ3q1cK0QwXZ12oo"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2ControlGroupTriggerId{
        &kTrustSafetySentimentSurveyV2, "control-group-trigger-id",
        "CXMbsBddw0ugnJ3q1cK0QJM1Hu8m"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2DownloadWarningUITriggerId{
        &kTrustSafetySentimentSurveyV2, "download-warning-ui-trigger-id",
        "7SS4sg4oR0ugnJ3q1cK0TNvCvd8U"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2PasswordCheckTriggerId{
        &kTrustSafetySentimentSurveyV2, "password-check-trigger-id",
        "Xd54YDVNJ0ugnJ3q1cK0UYBRruNH"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2PasswordProtectionUITriggerId{
        &kTrustSafetySentimentSurveyV2, "password-protection-ui-trigger-id",
        "bQBRghu5w0ugnJ3q1cK0RrqdqVRP"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2SafetyCheckTriggerId{
        &kTrustSafetySentimentSurveyV2, "safety-check-trigger-id",
        "YSDfPVMnX0ugnJ3q1cK0RxEhwkay"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2SafetyHubInteractionTriggerId{
        &kTrustSafetySentimentSurveyV2, "safety-hub-interaction-trigger-id",
        ""};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2SafetyHubNotificationTriggerId{
        &kTrustSafetySentimentSurveyV2, "safety-hub-notification-trigger-id",
        ""};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2TrustedSurfaceTriggerId{
        &kTrustSafetySentimentSurveyV2, "trusted-surface-trigger-id",
        "CMniDmzgE0ugnJ3q1cK0U6PaEn1f"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2PrivacyGuideTriggerId{
        &kTrustSafetySentimentSurveyV2, "privacy-guide-trigger-id",
        "tqR1rjeDu0ugnJ3q1cK0P9yJEq7Z"};
const base::FeatureParam<std::string>
    kTrustSafetySentimentSurveyV2SafeBrowsingInterstitialTriggerId{
        &kTrustSafetySentimentSurveyV2, "safe-browsing-interstitial-trigger-id",
        "Z9pSWP53n0ugnJ3q1cK0Y6YkGRpU"};
// The time the user must have the Trusted Surface bubble open to be considered.
// Alternatively the user can interact with the bubble, in which case this time
// is irrelevant.
const base::FeatureParam<base::TimeDelta>
    kTrustSafetySentimentSurveyV2TrustedSurfaceTime{
        &kTrustSafetySentimentSurveyV2, "trusted-surface-time",
        base::Seconds(5)};
#endif

#if !BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kWebAppManifestIconUpdating, base::FEATURE_DISABLED_BY_DEFAULT);

BASE_FEATURE(kWebAppUsePrimaryIcon, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // !BUILDFLAG(IS_ANDROID)

BASE_FEATURE(kWebAppManifestPolicyAppIdentityUpdate,
             base::FEATURE_ENABLED_BY_DEFAULT);

#if !BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kWebium, base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // !BUILDFLAG(IS_ANDROID)

// Enables the User-Agent override fix for SearchPrefetch. This will work only
// if enabled together with `kPreloadingRespectUserAgentOverride`.
BASE_FEATURE(kRespectUserAgentOverrideInSearchPrefetch,
             base::FEATURE_DISABLED_BY_DEFAULT);

// Restricts the WebUI scripts able to use the generated code cache according to
// embedder-specified heuristics.
BASE_FEATURE(kRestrictedWebUICodeCache, base::FEATURE_DISABLED_BY_DEFAULT);

// Defines a comma-separated list of resource names able to use the generated
// code cache when RestrictedWebUICodeCache is enabled.
const base::FeatureParam<std::string> kRestrictedWebUICodeCacheResources{
    &kRestrictedWebUICodeCache, "RestrictedWebUICodeCacheResources", ""};

#if BUILDFLAG(IS_CHROMEOS)
// Populates storage dimensions in UMA log if enabled. Requires diagnostics
// package in the image.
BASE_FEATURE(kUmaStorageDimensions, base::FEATURE_DISABLED_BY_DEFAULT);
#endif

#if BUILDFLAG(IS_WIN)
// Kill switch for pinning PWA Shortcut to the Windows taskbar with the Taskbar
// pinning Limited Access Feature.
BASE_FEATURE(kWinPinPWAShortcutWithLAF, base::FEATURE_ENABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_WIN)

#if BUILDFLAG(IS_CHROMEOS)
// A feature to indicate whether setting wake time >24hours away is supported by
// the platform's RTC.
// TODO(b/187516317): Remove when the issue is resolved in FW.
BASE_FEATURE(kSupportsRtcWakeOver24Hours, base::FEATURE_ENABLED_BY_DEFAULT);

// A feature to enable event based log uploads. See
// go/cros-eventbasedlogcollection-dd.
BASE_FEATURE(kEventBasedLogUpload, base::FEATURE_ENABLED_BY_DEFAULT);

// A feature to enable periodic log upload migration. This includes using new
// mechanism for collecting, exporting and uploading logs. See
// go/legacy-log-upload-migration.
BASE_FEATURE(kPeriodicLogUploadMigration, base::FEATURE_DISABLED_BY_DEFAULT);

// A feature to enable periodic log class management enabled policy.
BASE_FEATURE(kClassManagementEnabledMetricsProvider,
             base::FEATURE_ENABLED_BY_DEFAULT);

// Enables reporting Chrome app activity for supervised users.
BASE_FEATURE(kUnicornChromeActivityReporting,
             base::FEATURE_DISABLED_BY_DEFAULT);
#endif  // BUILDFLAG(IS_CHROMEOS)

// A feature to disable shortcut creation from the Chrome UI, and instead use
// that to create DIY apps.
BASE_FEATURE(kDisableShortcutsEnableDiy, base::FEATURE_ENABLED_BY_DEFAULT);

// A feature to enabled updating policy and default management installed PWAs to
// happen silently without prompting an updating dialog.
BASE_FEATURE(kSilentPolicyAndDefaultAppUpdating,
             base::FEATURE_DISABLED_BY_DEFAULT);

}  // namespace features