Turning WebGL and the accelerated compositor on by default (linux and windows only...

[chromium-blink-merge.git] / chrome / common / chrome_switches.cc

// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/common/chrome_switches.h"

#include "base/base_switches.h"
#include "base/command_line.h"

namespace switches {

// -----------------------------------------------------------------------------
// Can't find the switch you are looking for? try looking in
// base/base_switches.cc instead.
// -----------------------------------------------------------------------------

// Activate (make foreground) myself on launch.  Helpful when Chrome
// is launched on the command line (e.g. by Selenium).  Only needed on Mac.
const char kActivateOnLaunch[]              = "activate-on-launch";

// By default, file:// URIs cannot read other file:// URIs. This is an
// override for developers who need the old behavior for testing.
const char kAllowFileAccessFromFiles[]      = "allow-file-access-from-files";

// Disable checking of the renegotiation extension and any future checks over
// and above what a "traditional" SSL stack might do. This has been requested
// in order to support some web development tools that intercept SSL
// connections.
const char kAllowSSLMITMProxies[]           = "allow-ssl-mitm-proxies";

// Allows debugging of sandboxed processes (see zygote_main_linux.cc).
const char kAllowSandboxDebugging[]         = "allow-sandbox-debugging";

// Allows injecting extensions and user scripts on the extensions
// gallery site. Normally prevented for security reasons, but can be
// useful for automation testing of the gallery.
const char kAllowScriptingGallery[]         = "allow-scripting-gallery";

// Enable web inspector for all windows, even if they're part of the browser.
// Allows us to use our dev tools to debug browser windows itself.
const char kAlwaysEnableDevTools[]          = "always-enable-dev-tools";

// Specifies that the associated value should be launched in "application" mode.
const char kApp[]                           = "app";

// Specifies that the extension-app with the specified id should be launched
// according to its configuration.
const char kAppId[]                         = "app-id";

// Lacks meaning with out kApp. Causes the specified app to be launched in an
// panel window.
const char kAppLaunchAsPanel[]              = "app-launch-as-panel";

// Makes the app launcher popup when a new tab is created.
const char kAppsPanel[]                     = "apps-panel";

// The URL to use for the gallery link in the app launcher.
const char kAppsGalleryURL[]                = "apps-gallery-url";

// Disable throbber for extension apps.
const char kAppsNoThrob[]                   = "apps-no-throb";

// Whether to display the "Debug" link for app launch behavior.
const char kAppsDebug[]      = "apps-debug";

// Whitelist of servers that Negotiate will generate delegated Kerberos tickets
// for.
const char kAuthNegotiateDelegateWhitelist[] =
    "auth-negotiate-delegate-whitelist";

// HTTP authentication schemes to enable. This is a comma separated list
// of authentication schemes (basic, digest, ntlm, and negotiate). By default
// all schemes are enabled. The primary use of this command line flag is to help
// triage autentication-related issues reported by end-users.
const char kAuthSchemes[]                   = "auth-schemes";

// Whitelist of servers which NTLM and Negotiate can automatically authenticate
// with using the default credentials of the currently logged in user.
const char kAuthServerWhitelist[] = "auth-server-whitelist";

// The value of this switch tells the app to listen for and broadcast
// automation-related messages on IPC channel with the given ID.
const char kAutomationClientChannelID[]     = "automation-channel";

// Block non-sandboxed plugins.
const char kBlockNonSandboxedPlugins[]      = "block-nonsandboxed-plugins";

// Causes the browser process to throw an assertion on startup.
const char kBrowserAssertTest[]             = "assert-test";

// Causes the browser process to crash on startup.
const char kBrowserCrashTest[]              = "crash-test";

// Path to the exe to run for the renderer and plugin subprocesses.
const char kBrowserSubprocessPath[]         = "browser-subprocess-path";

// Run Chrome in Chrome Frame mode. This means that Chrome expects to be run
// as a dependent process of the Chrome Frame plugin.
const char kChromeFrame[]                   = "chrome-frame";

// The unique id to be used for this cloud print proxy instance.
const char kCloudPrintProxyId[]             = "cloud-print-proxy-id";

// The URL of the cloud print service to use, overrides any value
// stored in preferences, and the default.  Only used if the cloud
// print service has been enabled (see enable-cloud-print).
const char kCloudPrintServiceURL[]          = "cloud-print-service";

// The Country we should use.  This is normally obtained from the operating
// system during first run and cached in the preferences afterwards.  This is a
// string value, the 2 letter code from ISO 3166-1.
const char kCountry[]                       = "country";

// Enables support to debug printing subsystem.
const char kDebugPrint[]                    = "debug-print";

// Triggers a pletora of diagnostic modes.
const char kDiagnostics[]                   = "diagnostics";

// Disables accelerated compositing.
const char kDisableAcceleratedCompositing[]  =
    "disable-accelerated-compositing";

// Disables the alternate window station for the renderer.
const char kDisableAltWinstation[]          = "disable-winsta";

// Disable the ApplicationCache.
const char kDisableApplicationCache[]       = "disable-application-cache";

// Disable extension apps.
const char kDisableApps[]                   = "disable-apps";

// Replaces the audio IPC layer for <audio> and <video> with a mock audio
// device, useful when using remote desktop or machines without sound cards.
// This is temporary until we fix the underlying problem.
//
// TODO(scherkus): remove --disable-audio when we have a proper fallback
// mechanism.
const char kDisableAudio[]                  = "disable-audio";

// Disable CNAME lookup of the host when generating the Kerberos SPN for a
// Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN
// for more background.
const char kDisableAuthNegotiateCnameLookup[] =
    "disable-auth-negotiate-cname-lookup";

// Disable limits on the number of backing stores. Can prevent blinking for
// users with many windows/tabs and lots of memory.
const char kDisableBackingStoreLimit[]      = "disable-backing-store-limit";

// Disable support for cached byte-ranges.
const char kDisableByteRangeSupport[]       = "disable-byte-range-support";

// Disable click-to-play for blocked plug-ins.
const char kDisableClickToPlay[]            = "disable-click-to-play";

// Disables establishing a backup TCP connection if a specified timeout is
// exceeded.
const char kDisableConnectBackupJobs[]      = "disable-connect-backup-jobs";

// Disable requests that webkit labels TargetIsPrefetch.  As of
// writing only <link rel=prefetch...> but also eventually
// Link: headers.
const char kDisableContentPrefetch[]        = "disable-content-prefetch";

// Disables the custom JumpList on Windows 7.
const char kDisableCustomJumpList[]         = "disable-custom-jumplist";

// Disables HTML5 DB support.
const char kDisableDatabases[]              = "disable-databases";

// Disables desktop notifications (default enabled on windows).
const char kDisableDesktopNotifications[]   = "disable-desktop-notifications";

// Browser flag to disable the web inspector for all renderers.
const char kDisableDevTools[]               = "disable-dev-tools";

// Disables device orientation events.
const char kDisableDeviceOrientation[]      = "disable-device-orientation";

// Disable experimental WebGL support.
const char kDisableExperimentalWebGL[]       = "disable-webgl";

// Disable extensions.
const char kDisableExtensions[]             = "disable-extensions";

// Disable checking for user opt-in for extensions that want to inject script
// into file URLs (ie, always allow it). This is used during automated testing.
const char kDisableExtensionsFileAccessCheck[] =
    "disable-extensions-file-access-check";

// Suppresses support for the Geolocation javascript API.
const char kDisableGeolocation[]            = "disable-geolocation";

// Disable the GLSL translator.
const char kDisableGLSLTranslator[]         = "disable-glsl-translator";

// Suppresses hang monitor dialogs in renderer processes.
const char kDisableHangMonitor[]            = "disable-hang-monitor";

// Disable the internal Flash Player.
const char kDisableInternalFlash[]          = "disable-internal-flash";

// Don't resolve hostnames to IPv6 addresses. This can be used when debugging
// issues relating to IPv6, but shouldn't otherwise be needed. Be sure to
// file bugs if something isn't working properly in the presence of IPv6.
// This flag can be overidden by the "enable-ipv6" flag.
const char kDisableIPv6[]                   = "disable-ipv6";

// Disable speculative TCP/IP preconnection.
const char kDisablePreconnect[]             = "disable-preconnect";

// Don't execute JavaScript (browser JS like the new tab page still runs).
const char kDisableJavaScript[]             = "disable-javascript";

// Prevent Java from running.
const char kDisableJava[]                   = "disable-java";

// Disable LocalStorage.
const char kDisableLocalStorage[]           = "disable-local-storage";

// Force logging to be disabled.  Logging is enabled by default in debug
// builds.
const char kDisableLogging[]                = "disable-logging";

// Whether we should prevent the new tab page from showing the first run
// notification.
const char kDisableNewTabFirstRun[]         = "disable-new-tab-first-run";

// Prevent outdated plugins from running.
const char kDisableOutdatedPlugins[]        = "disable-outdated-plugins";

// Prevent plugins from running.
const char kDisablePlugins[]                = "disable-plugins";

// Disable pop-up blocking.
const char kDisablePopupBlocking[]          = "disable-popup-blocking";

// Normally when the user attempts to navigate to a page that was the result of
// a post we prompt to make sure they want to. This switch may be used to
// disable that check. This switch is used during automated testing.
const char kDisablePromptOnRepost[]         = "disable-prompt-on-repost";

// Disable remote web font support. SVG font should always work whether
// this option is specified or not.
const char kDisableRemoteFonts[]            = "disable-remote-fonts";

// Turns off the accessibility in the renderer.
const char kDisableRendererAccessibility[]  = "disable-renderer-accessibility";

// Prevents the URLs of BackgroundContents from being remembered and re-launched
// when the browser restarts.
const char kDisableRestoreBackgroundContents[] =
    "disable-restore-background-contents";

// Disable session storage.
const char kDisableSessionStorage[]         = "disable-session-storage";

// Enable shared workers. Functionality not yet complete.
const char kDisableSharedWorkers[]          = "disable-shared-workers";

// Disable site-specific tailoring to compatibility issues in WebKit.
const char kDisableSiteSpecificQuirks[]     = "disable-site-specific-quirks";

// Disables speech input.
const char kDisableSpeechInput[]            = "disable-speech-input";

// Disable False Start in SSL and TLS connections.
const char kDisableSSLFalseStart[]          = "disable-ssl-false-start";

// Disable syncing browser data to a Google Account.
const char kDisableSync[]                   = "disable-sync";

// Disable syncing of apps.
const char kDisableSyncApps[]               = "disable-sync-apps";

// Disable syncing of autofill.
const char kDisableSyncAutofill[]           = "disable-sync-autofill";

// Disable syncing of bookmarks.
const char kDisableSyncBookmarks[]          = "disable-sync-bookmarks";

// Disable syncing of extensions.
const char kDisableSyncExtensions[]         = "disable-sync-extensions";

// Disable syncing of passwords.
const char kDisableSyncPasswords[]          = "disable-sync-passwords";

// Disable syncing of preferences.
const char kDisableSyncPreferences[]        = "disable-sync-preferences";

// Disable syncing of sessions.
const char kDisableSyncSessions[]           = "disable-sync-sessions";

// Disable syncing of themes.
const char kDisableSyncThemes[]             = "disable-sync-themes";

// Disable syncing of typed urls.
const char kDisableSyncTypedUrls[]          = "disable-sync-typed-urls";

// TabCloseableStateWatcher disallows closing of tabs and browsers under certain
// situations on ChromeOS.  Some tests expect tabs or browsers to close, so we
// need a switch to disable the watcher.
const char kDisableTabCloseableStateWatcher[] =
    "disable-tab-closeable-state-watcher";

// Allow disabling of translate from the command line to assist with
// automated browser testing (e.g. Selenium/WebDriver).  Normal
// browser users should disable translate with the preference.
const char kDisableTranslate[] = "disable-translate";

// Enables the backend service for web resources, used in the new tab page for
// loading tips and recommendations from a JSON feed.
const char kDisableWebResources[]           = "disable-web-resources";

// Don't enforce the same-origin policy.  (Used by people testing their sites.)
const char kDisableWebSecurity[]            = "disable-web-security";

// Disable Web Sockets support.
const char kDisableWebSockets[]             = "disable-web-sockets";

// Use a specific disk cache location, rather than one derived from the
// UserDatadir.
const char kDiskCacheDir[]                  = "disk-cache-dir";

// Forces the maximum disk space to be used by the disk cache, in bytes.
const char kDiskCacheSize[]                 = "disk-cache-size";

const char kDnsLogDetails[]                 = "dns-log-details";

// Disables prefetching of DNS information.
const char kDnsPrefetchDisable[]            = "dns-prefetch-disable";

// Specifies if the dom_automation_controller_ needs to be bound in the
// renderer. This binding happens on per-frame basis and hence can potentially
// be a performance bottleneck. One should only enable it when automating
// dom based tests.
const char kDomAutomationController[]       = "dom-automation";

// Dump any accumualted histograms to the log when browser terminates (requires
// logging to be enabled to really do anything).  Used by developers and test
// scripts.
const char kDumpHistogramsOnExit[]          = "dump-histograms-on-exit";

// Enable displaying net log events on the command line.
extern const char kLogNetLog[]              = "log-net-log";

// Enable gpu-accelerated compositing.
// TODO(vangelis): Remove the flag once accelerated compositing is enabled by
// default on all platforms.
const char kEnableAcceleratedCompositing[]  = "enable-accelerated-compositing";

// Enable gpu-accelerated 2d canvas.
const char kEnableAccelerated2dCanvas[]     = "enable-accelerated-2d-canvas";

// Enables AeroPeek for each tab. (This switch only works on Windows 7).
const char kEnableAeroPeekTabs[]            = "enable-aero-peek-tabs";

// Enable the inclusion of non-standard ports when generating the Kerberos SPN
// in response to a Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN
// for more background.
const char kEnableAuthNegotiatePort[]       = "enable-auth-negotiate-port";

// Enable background mode (background apps will keep chrome running in the
// background and allow chrome to launch on startup).
const char kEnableBackgroundMode[] = "enable-background-mode";

// Enables the benchmarking extensions.
const char kEnableBenchmarking[]            = "enable-benchmarking";

// This applies only when the process type is "service". Enables the
// Chromoting Host Process within the service process.
const char kEnableRemoting[]                = "enable-remoting";

// This applies only when the process type is "service". Enables the
// Cloud Print Proxy component within the service process.
const char kEnableCloudPrintProxy[]         = "enable-cloud-print-proxy";

// Enables the Cloud Print dialog hosting code.
const char kEnableCloudPrint[]              = "enable-cloud-print";

// Enables establishing a backup TCP connection if a specified timeout is
// exceeded.
const char kEnableConnectBackupJobs[]       = "enable-connect-backup-jobs";

// Enable requests that webkit labels TargetIsPrefetch.  As of
// writing only <link rel=prefetch...> but also eventually
// Link: headers.
const char kEnableContentPrefetch[]         = "enable-content-prefetch";

// Enables the cookie prompt.
const char kEnableCookiePrompt[]            = "enable-cookie-prompt";

// Enables device motion events.
const char kEnableDeviceMotion[]            = "enable-device-motion";

const char kEnableDNSSECCerts[]             = "enable-dnssec-certs";

// Enables extension APIs that are in development.
const char kEnableExperimentalExtensionApis[] =
    "enable-experimental-extension-apis";

// Enable experimental timeline API.
const char kEnableExtensionTimelineApi[]    = "enable-extension-timeline-api";

// Enable the fastback page cache.
const char kEnableFastback[]                = "enable-fastback";

// By default, cookies are not allowed on file://. They are needed for
// testing, for example page cycler and layout tests.  See bug 1157243.
const char kEnableFileCookies[]             = "enable-file-cookies";

// Enable the FileSystem API.
const char kEnableFileSystem[]              = "enable-file-system";

// Enable the Indexed Database API.
const char kEnableIndexedDatabase[]         = "enable-indexed-database";

// Use the InMemoryURLIndex to back the HistoryURLProvider for autocomplete
// results.  If not set, defaults to using the InMemoryDatabase.
const char kEnableInMemoryURLIndex[]        = "enable-in-memory-url-index";

// Enable IPv6 support, even if probes suggest that it may not be fully
// supported.  Some probes may require internet connections, and this flag will
// allow support independent of application testing.
// This flag overrides "disable-ipv6" which appears elswhere in this file.
const char kEnableIPv6[]                    = "enable-ipv6";

// Enable the GPU plugin and Pepper 3D rendering.
const char kEnableGPUPlugin[]               = "enable-gpu-plugin";

// Enable experimental GPU rendering for backing store and video.
const char kEnableGPURendering[]            = "enable-gpu-rendering";

// Force logging to be enabled.  Logging is disabled by default in release
// builds.
const char kEnableLogging[]                 = "enable-logging";

// Is match preview enabled?
const char kEnableMatchPreview[]            = "enable-match-preview";

// Allows reporting memory info (JS heap size) to page.
const char kEnableMemoryInfo[]              = "enable-memory-info";

// On Windows, converts the page to the currently-installed monitor profile.
// This does NOT enable color management for images. The source is still
// assumed to be sRGB.
const char kEnableMonitorProfile[]          = "enable-monitor-profile";

// Runs the Native Client inside the renderer process and enables GPU plugin
// (internally adds kInternalNaCl and lEnableGpuPlugin to the command line).
const char kEnableNaCl[]                    = "enable-nacl";

// Enables debugging via RSP over a socket.
const char kEnableNaClDebug[]               = "enable-nacl-debug";

// Enable Native Web Worker support.
const char kEnableNativeWebWorkers[]        = "enable-native-web-workers";

// Enables the Page Info SSL dialog as a bubble, rather than a separate window.
const char kEnableNewPageInfoBubble[]       = "enable-new-page-info-bubble";

// Enable content settings based on host *and* plug-in.
const char kEnableResourceContentSettings[] =
    "enable-resource-content-settings";

// Enable speculative TCP/IP preconnection.
const char kEnablePreconnect[]              = "enable-preconnect";

// Enable caching of pre-parsed JS script data.  See http://crbug.com/32407.
const char kEnablePreparsedJsCaching[]      = "enable-preparsed-js-caching";

// Enable print preview (work in progress).
const char kEnablePrintPreview[]            = "enable-print-preview";

// Enable the IsSearchProviderInstalled and InstallSearchProvider with an extra
// parameter to indicate if the provider should be the default.
const char kEnableSearchProviderApiV2[]     = "enable-search-provider-api-v2";

// Enables speech input.
const char kEnableSpeechInput[]             = "enable-speech-input";

// Enables StatsTable, logging statistics to a global named shared memory table.
const char kEnableStatsTable[]              = "enable-stats-table";

// Enable syncing browser data to a Google Account.
const char kEnableSync[]                    = "enable-sync";

// Enable syncing browser apps.
const char kEnableSyncApps[]                = "enable-sync-apps";

// Enable syncing browser autofill.
const char kEnableSyncAutofill[]            = "enable-sync-autofill";

// Enable syncing browser bookmarks.
const char kEnableSyncBookmarks[]           = "enable-sync-bookmarks";

// Enable syncing browser extensions.
const char kEnableSyncExtensions[]          = "enable-sync-extensions";

// Enable syncing browser passwords.
const char kEnableSyncPasswords[]           = "enable-sync-passwords";

// Enable syncing browser preferences.
const char kEnableSyncPreferences[]         = "enable-sync-preferences";

// Enable syncing browser sessions.
const char kEnableSyncSessions[]            = "enable-sync-sessions";

// Enable syncing browser themes.
const char kEnableSyncThemes[]              = "enable-sync-themes";

// Enable syncing browser typed urls.
const char kEnableSyncTypedUrls[]           = "enable-sync-typed-urls";

// Enable tabbed options, ie: dom-ui version of options window.
const char kEnableTabbedOptions[]           = "enable-tabbed-options";

// Whether or not the touch events API is exposed.
const char kEnableTouch[]                   = "enable-touch";

// Enables the option to show tabs as a vertical stack down the side of the
// browser window.
const char kEnableVerticalTabs[]            = "enable-vertical-tabs";

// Enables support for fullscreen video. Current implementation is
// incomplete and this flag is used for development and testing.
const char kEnableVideoFullscreen[]         = "enable-video-fullscreen";

// Enables video layering where video is rendered as a separate layer outside
// of the backing store.
const char kEnableVideoLayering[]           = "enable-video-layering";

// Enables video logging where video elements log playback performance data to
// the debug log.
const char kEnableVideoLogging[]            = "enable-video-logging";

// Spawn threads to watch for excessive delays in specified message loops.
// User should set breakpoints on Alarm() to examine problematic thread.
// Usage:   -enable-watchdog=[ui][io]
// Order of the listed sub-arguments does not matter.
const char kEnableWatchdog[]                = "enable-watchdog";

// Enables Windows 7 Location Platform provider for geolocation API.
const char kEnableWin7Location[]            = "enable-win7-location";

// Disable WebKit's XSSAuditor.  The XSSAuditor mitigates reflective XSS.
const char kEnableXSSAuditor[]              = "enable-xss-auditor";

// Enables experimental features for Spellchecker. Right now, the first
// experimental feature is auto spell correct, which corrects words which are
// misppelled by typing the word with two consecutive letters swapped. The
// features that will be added next are:
// 1 - Allow multiple spellcheckers to work simultaneously.
// 2 - Allow automatic detection of spell check language.
// TODO(sidchat): Implement the above fetaures to work under this flag.
const char kExperimentalSpellcheckerFeatures[] =
    "experimental-spellchecker-features";

// Explicitly allow additional ports using a comma separated list of port
// numbers.
const char kExplicitlyAllowedPorts[]        = "explicitly-allowed-ports";

// Causes the process to run as an extension subprocess.
const char kExtensionProcess[]              = "extension";

// Frequency in seconds for Extensions auto-update.
const char kExtensionsUpdateFrequency[]     = "extensions-update-frequency";

// Alternative feedback server to use when submitting user feedback
const char kFeedbackServer[]                = "feedback-server";

// The file descriptor limit is set to the value of this switch, subject to the
// OS hard limits. Useful for testing that file descriptor exhaustion is handled
// gracefully.
const char kFileDescriptorLimit[]           = "file-descriptor-limit";

// Display the First Run experience when the browser is started, regardless of
// whether or not it's actually the first run.
const char kFirstRun[]                      = "first-run";

// Some field tests may rendomized in the browser, and the randomly selected
// outcome needs to be propogated to the renderer.  For instance, this is used
// to modify histograms recorded in the renderer, or to get the renderer to
// also set of its state (initialize, or not initialize components) to match the
// experiment(s).
// The argument is a string-ized list of experiment names, and the associated
// value that was randomly selected.  In the recent implementetaion, the
// persistent representation generated by field_trial.cc and later decoded, is a
// list of name and value pairs, separated by slashes. See field trial.cc for
// current details.
const char kForceFieldTestNameAndValue[]    = "force-fieldtest";

// Extra command line options for launching the GPU process (normally used
// for debugging). Use like renderer-cmd-prefix.
const char kGpuLauncher[]                   = "gpu-launcher";

// Makes this process a GPU sub-process.
const char kGpuProcess[]                    = "gpu-process";

// Causes the GPU process to display a dialog on launch.
const char kGpuStartupDialog[]              = "gpu-startup-dialog";

// These flags show the man page on Linux. They are equivalent to each
// other.
const char kHelp[]                          = "help";
const char kHelpShort[]                     = "h";

// Make Windows happy by allowing it to show "Enable access to this program"
// checkbox in Add/Remove Programs->Set Program Access and Defaults. This
// only shows an error box because the only way to hide Chrome is by
// uninstalling it.
const char kHideIcons[]                     = "hide-icons";

// The value of this switch specifies which page will be displayed
// in newly-opened tabs.  We need this for testing purposes so
// that the UI tests don't depend on what comes up for http://google.com.
const char kHomePage[]                      = "homepage";

// Comma separated list of rules that control how hostnames are mapped.
//
// For example:
//    "MAP * 127.0.0.1" --> Forces all hostnames to be mapped to 127.0.0.1
//    "MAP *.google.com proxy" --> Forces all google.com subdomains to be
//                                 resolved to "proxy".
//    "MAP test.com [::1]:77 --> Forces "test.com" to resolve to IPv6 loopback.
//                               Will also force the port of the resulting
//                               socket address to be 77.
//    "MAP * baz, EXCLUDE www.google.com" --> Remaps everything to "baz",
//                                            except for "www.google.com".
//
// These mappings apply to the endpoint host in a URLRequest (the TCP connect
// and host resolver in a direct connection, and the CONNECT in an http proxy
// connection, and the endpoint host in a SOCKS proxy connection).
const char kHostRules[]                     = "host-rules";

// The maximum number of concurrent host resolve requests (i.e. DNS) to allow.
const char kHostResolverParallelism[]       = "host-resolver-parallelism";

// These mappings only apply to the host resolver.
const char kHostResolverRules[]             = "host-resolver-rules";

// Perform importing from another browser. The value associated with this
// setting encodes the target browser and what items to import.
const char kImport[]                        = "import";

// Perform bookmark importing from an HTML file. The value associated with this
// setting encodes the file path. It may be used jointly with kImport.
const char kImportFromFile[]                = "import-from-file";

// Runs plugins inside the renderer process
const char kInProcessPlugins[]              = "in-process-plugins";

// Runs WebGL inside the renderer process.
const char kInProcessWebGL[]                = "in-process-webgl";

// Causes the browser to launch directly in incognito mode.
const char kIncognito[]                     = "incognito";

// Back up the profile.
const char kInstallerTestBackup[]           = "backup";

// Control the build under test.
const char kInstallerTestBuild[]            = "build";

// Uninstall before running the tests.
const char kInstallerTestClean[]            = "clean";

// Force the installer tests to run, regardless of the current platform.
const char kInstallerTestForce[]            = "force";

// Runs the Native Client inside the renderer process.
const char kInternalNaCl[]                  = "internal-nacl";

// Runs a trusted Pepper plugin inside the renderer process.
const char kInternalPepper[]                = "internal-pepper";

// The following flag allows users who can reproduce crbug/35198
// to enable extra logging.  It will be removed once the issue is fixed.
const char kIssue35198ExtraLogging[]        = "issue35198-logging";

// Specifies the flags passed to JS engine
const char kJavaScriptFlags[]               = "js-flags";

// Used for testing - keeps browser alive after last browser window closes.
const char kKeepAliveForTest[]              = "keep-alive-for-test";

// Load an extension from the specified directory.
const char kLoadExtension[]                 = "load-extension";

// Load an NPAPI plugin from the specified path.
const char kLoadPlugin[]                    = "load-plugin";

// Load NPAPI plugins from the specified directory.
const char kExtraPluginDir[]                = "extra-plugin-dir";

// Will filter log messages to show only the messages that are prefixed
// with the specified value. See also kEnableLogging and kLoggingLevel.
const char kLogFilterPrefix[]               = "log-filter-prefix";

// Make plugin processes log their sent and received messages to LOG(INFO).
const char kLogPluginMessages[]             = "log-plugin-messages";

// Sets the minimum log level. Valid values are from 0 to 3:
// INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3.
const char kLoggingLevel[]                  = "log-level";

// Make Chrome default browser
const char kMakeDefaultBrowser[]            = "make-default-browser";

// Forces the maximum disk space to be used by the media cache, in bytes.
const char kMediaCacheSize[]                = "media-cache-size";

// Enable dynamic loading of the Memory Profiler DLL, which will trace
// all memory allocations during the run.
const char kMemoryProfiling[]               = "memory-profile";

// Enable histograming of tasks served by MessageLoop. See about:histograms/Loop
// for results, which show frequency of messages on each thread, including APC
// count, object signalling count, etc.
const char kMessageLoopHistogrammer[]       = "message-loop-histogrammer";

// Enables the recording of metrics reports but disables reporting.  In
// contrast to kDisableMetrics, this executes all the code that a normal client
// would use for reporting, except the report is dropped rather than sent to
// the server. This is useful for finding issues in the metrics code during UI
// and performance tests.
const char kMetricsRecordingOnly[]          = "metrics-recording-only";

// Sets the default IP address (interface) for the stub (normally 127.0.0.1).
const char kNaClDebugIP[]                   = "nacl-debug-ip";

// Sets the default port range for debugging.
const char kNaClDebugPorts[]                = "nacl-debug-ports";

// Causes the process to run as a NativeClient broker
// (used for launching NaCl loader processes on 64-bit Windows).
const char kNaClBrokerProcess[]             = "nacl-broker";

// Causes the process to run as a NativeClient loader.
const char kNaClLoaderProcess[]             = "nacl-loader";

// Causes the Native Client process to display a dialog on launch.
const char kNaClStartupDialog[]             = "nacl-startup-dialog";

// Disables the default browser check. Useful for UI/browser tests where we
// want to avoid having the default browser info-bar displayed.
const char kNoDefaultBrowserCheck[]         = "no-default-browser-check";

// Don't record/playback events when using record & playback.
const char kNoEvents[]                      = "no-events";

// Bypass the First Run experience when the browser is started, regardless of
// whether or not it's actually the first run. Overrides kFirstRun in case
// you're for some reason tempted to pass them both.
const char kNoFirstRun[]                    = "no-first-run";

// Support a separate switch that enables the v8 playback extension.
// The extension causes javascript calls to Date.now() and Math.random()
// to return consistent values, such that subsequent loads of the same
// page will result in consistent js-generated data and XHR requests.
// Pages may still be able to generate inconsistent data from plugins.
const char kNoJsRandomness[]                = "no-js-randomness";

// Don't send HTTP-Referer headers.
const char kNoReferrers[]                   = "no-referrers";

// Don't use a proxy server, always make direct connections. Overrides any
// other proxy server flags that are passed.
const char kNoProxyServer[]                 = "no-proxy-server";

// Runs the renderer outside the sandbox.
const char kNoSandbox[]                     = "no-sandbox";

// Does not automatically open a browser window on startup (used when launching
// Chrome for the purpose of hosting background apps).
const char kNoStartupWindow[]               = "no-startup-window";

// Don't use TopSites; use old ThumbnailDatabase code instead.
const char kNoTopSites[]                    = "no-top-sites";

// Specifies the maximum number of threads to use for running the Proxy
// Autoconfig (PAC) script.
const char kNumPacThreads[]                 = "num-pac-threads";

// Launch URL in new browser window.
const char kOpenInNewWindow[]               = "new-window";

// Simulate an organic Chrome install.
const char kOrganicInstall[]                = "organic";

// Package an extension to a .crx installable file from a given directory.
const char kPackExtension[]                 = "pack-extension";

// Optional PEM private key is to use in signing packaged .crx.
const char kPackExtensionKey[]              = "pack-extension-key";

// Specifies the path to the user data folder for the parent profile.
const char kParentProfile[]                 = "parent-profile";

// Read previously recorded data from the cache. Only cached data is read.
// See kRecordMode.
const char kPlaybackMode[]                  = "playback-mode";

// Specifies the plugin data directory, which is where plugins (Gears
// specifically) will store its state.
const char kPluginDataDir[]                 = "plugin-data-dir";

// Specifies a command that should be used to launch the plugin process.  Useful
// for running the plugin process through purify or quantify.  Ex:
//   --plugin-launcher="path\to\purify /Run=yes"
const char kPluginLauncher[]                = "plugin-launcher";

// Tells the plugin process the path of the plugin to load
const char kPluginPath[]                    = "plugin-path";

// Causes the process to run as a plugin subprocess.
const char kPluginProcess[]                 = "plugin";

// Causes the plugin process to display a dialog on launch.
const char kPluginStartupDialog[]           = "plugin-startup-dialog";

// Establishes a channel to the GPU process asynchronously and (re)launches it
// if necessary when a renderer process starts.
const char kPrelaunchGpuProcess[]           = "prelaunch-gpu-process";

// Prints the pages on the screen.
const char kPrint[]                         = "print";

// Runs a single process for each site (i.e., group of pages from the same
// registered domain) the user visits.  We default to using a renderer process
// for each site instance (i.e., group of pages from the same registered
// domain with script connections to each other).
const char kProcessPerSite[]                = "process-per-site";

// Runs each set of script-connected tabs (i.e., a BrowsingInstance) in its own
// renderer process.  We default to using a renderer process for each
// site instance (i.e., group of pages from the same registered domain with
// script connections to each other).
const char kProcessPerTab[]                 = "process-per-tab";

// The value of this switch determines whether the process is started as a
// renderer or plugin host.  If it's empty, it's the browser.
const char kProcessType[]                   = "type";

// Output the product version information and quit. Used as an internal api to
// detect the installed version of Chrome on Linux.
const char kProductVersion[]                = "product-version";

// Causes the process to run as a profile import subprocess.
const char kProfileImportProcess[]          = "profile-import";

// Force proxy auto-detection.
const char kProxyAutoDetect[]               = "proxy-auto-detect";

// Specify a list of hosts for whom we bypass proxy settings and use direct
// connections. Ignored if --proxy-auto-detect or --no-proxy-server are
// also specified.
// This is a comma separated list of bypass rules. See:
// "net/proxy/proxy_bypass_rules.h" for the format of these rules.
const char kProxyBypassList[]               = "proxy-bypass-list";

// Use the pac script at the given URL
const char kProxyPacUrl[]                   = "proxy-pac-url";

// Use a specified proxy server, overrides system settings. This switch only
// affects HTTP and HTTPS requests.
const char kProxyServer[]                   = "proxy-server";

// Adds a "Purge memory" button to the Task Manager, which tries to dump as
// much memory as possible.  This is mostly useful for testing how well the
// MemoryPurger functionality works.
//
// NOTE: This is only implemented for Views.
const char kPurgeMemoryButton[]             = "purge-memory-button";

// Chrome supports a playback and record mode.  Record mode saves *everything*
// to the cache.  Playback mode reads data exclusively from the cache.  This
// allows us to record a session into the cache and then replay it at will.
// See also kPlaybackMode.
const char kRecordMode[]                    = "record-mode";

// Register pepper plugins that should be loaded into the renderer.
const char kRegisterPepperPlugins[]         = "register-pepper-plugins";

// Enable remote debug over HTTP on the specified port.
const char kRemoteDebuggingPort[]           = "remote-debugging-port";

// Enable remote debug / automation shell on the specified port.
const char kRemoteShellPort[]               = "remote-shell-port";

// Causes the renderer process to throw an assertion on launch.
const char kRendererAssertTest[]            = "renderer-assert-test";

#if !defined(OFFICIAL_BUILD)
// Causes the renderer process to throw an assertion on launch.
const char kRendererCheckFalseTest[]        = "renderer-check-false-test";
#endif

// On POSIX only: the contents of this flag are prepended to the renderer
// command line. Useful values might be "valgrind" or "xterm -e gdb --args".
const char kRendererCmdPrefix[]             = "renderer-cmd-prefix";

// Causes the renderer process to crash on launch.
const char kRendererCrashTest[]             = "renderer-crash-test";

// Causes the process to run as renderer instead of as browser.
const char kRendererProcess[]               = "renderer";

// Causes the renderer process to display a dialog on launch.
const char kRendererStartupDialog[]         = "renderer-startup-dialog";

// Indicates the last session should be restored on startup. This overrides
// the preferences value and is primarily intended for testing. The value of
// this switch is the number of tabs to wait until loaded before
// 'load completed' is sent to the ui_test.
const char kRestoreLastSession[]            = "restore-last-session";

// Runs the plugin processes inside the sandbox.
const char kSafePlugins[]                   = "safe-plugins";

// Select the safe-browsing database storage.  "old" for the original
// SQLite-based SafeBrowsingDatabaseBloom, "newsqlite" for the new
// SQLite-based SafeBrowsingDatabase+SafeBrowsingStoreSQLite, and
// "newfile" for SafeBrowsingDatabase+SafeBrowsingStoreFile.
const char kSafeBrowsingDatabaseStore[]     = "safe-browsing-database-store";

// URL prefix used by safebrowsing to fetch hash, download data and
// report malware.
const char kSbInfoURLPrefix[] = "safebrowsing-info-url-prefix";

// URL prefix used by safebrowsing to get MAC key.
const char kSbMacKeyURLPrefix[] = "safebrowsing-mackey-url-prefix";

// If present, safebrowsing only performs update when
// SafeBrowsingProtocolManager::ForceScheduleNextUpdate() is explicitly called.
// This is used for testing only.
const char kSbDisableAutoUpdate[] = "safebrowsing-disable-auto-update";

// Enable support for SDCH filtering (dictionary based expansion of content).
// Optional argument is *the* only domain name that will have SDCH suppport.
// Default is  "-enable-sdch" to advertise SDCH on all domains.
// Sample usage with argument: "-enable-sdch=.google.com"
// SDCH is currently only supported server-side for searches on google.com.
const char kSdchFilter[]                    = "enable-sdch";

// Enables the showing of an info-bar instructing user they can search directly
// from the omnibox.
const char kSearchInOmniboxHint[]           = "search-in-omnibox-hint";

// Causes the process to run as a service process.
const char kServiceProcess[]                = "service";

// The LSID of the account to use for the service process.
const char kServiceAccountLsid[]            = "service-account-lsid";

// See kHideIcons.
const char kShowIcons[]                     = "show-icons";

// Renders a border around composited Render Layers to help debug and study
// layer compositing.
const char kShowCompositedLayerBorders[]    = "show-composited-layer-borders";

// Visibly render a border around paint rects in the web page to help debug
// and study painting behavior.
const char kShowPaintRects[]                = "show-paint-rects";

// Whether to show the link to the Google Privacy Dashboard on the Sync options
// panel.
const char kShowPrivacyDashboardLink[]      = "show-privacy-dashboard-link";

// Change the DCHECKS to dump memory and continue instead of displaying error
// dialog. This is valid only in Release mode when --enable-dcheck is
// specified.
const char kSilentDumpOnDCHECK[]            = "silent-dump-on-dcheck";

// Replaces the buffered data source for <audio> and <video> with a simplified
// resource loader that downloads the entire resource into memory.
//
// TODO(scherkus): remove --simple-data-source when our media resource loading
// is cleaned up and playback testing completed.
const char kSimpleDataSource[]              = "simple-data-source";

// Runs the renderer and plugins in the same process as the browser
const char kSingleProcess[]                 = "single-process";

// Start the browser maximized, regardless of any previous settings.
const char kStartMaximized[]                = "start-maximized";

// Control Sync XMPP client settings.
const char kSyncAllowPlain[]                = "allow-plain";

// Disable the Chrome-socket-based buzz::AsyncSocket implementation
// for sync notifications, instead using libjingle sockets.
const char kSyncDisableChromeAsyncSocket[]  =
    "sync-disable-chrome-async-socket";

// Control Sync XMPP client settings.
const char kSyncDisableTls[]                = "disable-tls";

// Email used for sync.
const char kSyncEmail[]                     = "email";

// Use the SyncerThread implementation that matches up with the old pthread
// impl semantics, but using Chrome synchronization primitives.  The only
// difference between this and the default is that we now have no timeout on
// Stop().  Should only use if you experience problems with the default.
const char kSyncerThreadTimedStop[]         = "syncer-thread-timed-stop";

// Override the default notification method for sync.
const char kSyncNotificationMethod[]        = "sync-notification-method";

// Password used for sync.
const char kSyncPassword[]                  = "password";

// Port used for sync.
const char kSyncPort[]                      = "port";

// Server used for sync.
const char kSyncServer[]                    = "server";

// Override the default server used for profile sync.
const char kSyncServiceURL[]                = "sync-url";

// Control Sync XMPP client settings.
const char kSyncUseSslTcp[]                 = "use-ssl-tcp";

// Control Sync XMPP client settings.
const char kSyncUseCacheInvalidation[]      = "use-cache-invalidation";

// Pass the name of the current running automated test to Chrome.
const char kTestName[]                      = "test-name";

// Runs the security test for the renderer sandbox.
const char kTestSandbox[]                   = "test-sandbox";

// Runs the security test for the NaCl loader sandbox.
const char kTestNaClSandbox[]               = "test-nacl-sandbox";

// Pass the type of the current test harness ("browser" or "ui")
const char kTestType[]                      = "test-type";

// The value of this switch tells the app to listen for and broadcast
// testing-related messages on IPC channel with the given ID.
const char kTestingChannelID[]              = "testing-channel";

// Excludes these plugins from the plugin sandbox.
// This is a comma-separated list of plugin library names.
const char kTrustedPlugins[]                = "trusted-plugins";

// Experimental. Shows a dialog asking the user to try chrome. This flag
// is to be used only by the upgrade process.
const char kTryChromeAgain[]                = "try-chrome-again";

// Runs un-installation steps that were done by chrome first-run.
const char kUninstall[]                     = "uninstall";

// Use Spdy for the transport protocol instead of HTTP.
// This is a temporary testing flag.
const char kUseSpdy[]                       = "use-spdy";

// Ignore certificate related errors.
const char kIgnoreCertificateErrors[]       = "ignore-certificate-errors";

// Set the maximum SPDY sessions per domain.
const char kMaxSpdySessionsPerDomain[]      = "max-spdy-sessions-per-domain";

// Use the low fragmentation heap for the CRT.
const char kUseLowFragHeapCrt[]             = "use-lf-heap";

// A string used to override the default user agent with a custom one.
const char kUserAgent[]                     = "user-agent";

// Specifies the user data directory, which is where the browser will look
// for all of its state.
const char kUserDataDir[]                   = "user-data-dir";

// directory to locate user scripts in as an over-ride of the default
const char kUserScriptsDir[]                = "user-scripts-dir";

// On POSIX only: the contents of this flag are prepended to the utility
// process command line. Useful values might be "valgrind" or "xterm -e gdb
// --args".
const char kUtilityCmdPrefix[]              = "utility-cmd-prefix";

// Causes the process to run as a utility subprocess.
const char kUtilityProcess[]                = "utility";

// The utility process is sandboxed, with access to one directory. This flag
// specifies the directory that can be accessed.
const char kUtilityProcessAllowedDir[]      = "utility-allowed-dir";

// Print version information and quit.
const char kVersion[]                       = "version";

// Will add kWaitForDebugger to every child processes. If a value is passed, it
// will be used as a filter to determine if the child process should have the
// kWaitForDebugger flag passed on or not.
const char kWaitForDebuggerChildren[]       = "wait-for-debugger-children";

// Causes the worker process allocation to use as many processes as cores.
const char kWebWorkerProcessPerCore[]       = "web-worker-process-per-core";

// Causes workers to run together in one process, depending on their domains.
// Note this is duplicated in webworkerclient_impl.cc
const char kWebWorkerShareProcesses[]       = "web-worker-share-processes";

// Use WinHTTP to fetch and evaluate PAC scripts. Otherwise the default is
// to use Chromium's network stack to fetch, and V8 to evaluate.
const char kWinHttpProxyResolver[]          = "winhttp-proxy-resolver";

// Causes the process to run as a worker subprocess.
const char kWorkerProcess[]                 = "worker";

// The prefix used when starting the zygote process. (i.e. 'gdb --args')
const char kZygoteCmdPrefix[]               = "zygote-cmd-prefix";

// Causes the process to run as a renderer zygote.
const char kZygoteProcess[]                 = "zygote";

#if defined(OS_CHROMEOS)
// Enable the redirection of viewable document requests to the Google
// Document Viewer.
const char kEnableGView[]                   = "enable-gview";

// Should we show the image based login?
const char kEnableLoginImages[]             = "enable-login-images";

// Enable Chrome-as-a-login-manager behavior.
const char kLoginManager[]                  = "login-manager";

// Allows to override the first login screen. The value should be the name
// of the first login screen to show (see
// chrome/browser/chromeos/login/login_wizard_view.cc for actual names).
// Ignored if kLoginManager is not specified.
// TODO(avayvod): Remove when the switch is no longer needed for testing.
const char kLoginScreen[]                   = "login-screen";

// Allows control over the initial login screen size. Pass width,height.
const char kLoginScreenSize[]               = "login-screen-size";

// Attempts to load libcros and validate it, then exits. A nonzero return code
// means the library could not be loaded correctly.
const char kTestLoadLibcros[]               = "test-load-libcros";

// Specifies the profile to use once a chromeos user is logged in.
const char kLoginProfile[]                  = "login-profile";

// Specifies the user which is already logged in.
const char kLoginUser[]                     = "login-user";
// Specifies a password to be used to login (along with login-user).
const char kLoginPassword[]                 = "login-password";

// Use the frame layout used in chromeos.
const char kChromeosFrame[]                 = "chromeos-frame";

// Set logging output to the given file.
const char kChromeosLogToFile[]             = "logtofile";

// Indicates that the browser is in "browse without sign-in" mode.
// Should completely disable extensions, sync and bookmarks.
const char kBWSI[]                          = "bwsi";

// Indicates that stub implementations of the libcros library should be used.
// This is typically used to test the chromeos build of chrome on the desktop.
const char kStubCros[]                      = "stub-cros";

// URL of the html page for Screen Saver.
const char kScreenSaverUrl[]                = "screen-saver-url";
#endif

#if defined(OS_LINUX)
// Specify the amount the trackpad should scroll by.
const char kScrollPixels[]                  = "scroll-pixels";
#endif

#if defined(OS_MACOSX) || defined(OS_WIN)
// Use the system SSL library (Secure Transport on Mac, SChannel on Windows)
// instead of NSS for SSL.
const char kUseSystemSSL[]                  = "use-system-ssl";
#endif

#if defined(OS_POSIX)
// A flag, generated internally by Chrome for renderer and other helper process
// command lines on Linux and Mac.  It tells the helper process to enable crash
// dumping and reporting, because helpers cannot access the profile or other
// files needed to make this decision.
// If passed to the browser, it'll be passed on to all the helper processes
// as well, thereby force-enabling the crash reporter.
const char kEnableCrashReporter[]           = "enable-crash-reporter";

// Bypass the error dialog when the profile lock couldn't be attained.
// This switch is used during automated testing.
const char kNoProcessSingletonDialog[]      = "no-process-singleton-dialog";

#if !defined(OS_MACOSX)
// Specifies which password store to use (detect, default, gnome, kwallet).
const char kPasswordStore[]                 = "password-store";
#endif
#endif

#if defined(OS_MACOSX)
// Temporary flag to prevent Flash from negotiating the Core Animation drawing
// model. This will be removed once the last issues have been resolved.
const char kDisableFlashCoreAnimation[]     = "disable-flash-core-animation";

// Temporary flag to disable hole punching for accelerated surfaces. This is
// here to aid debugging eventual problems, it can be removed once hole punching
// has been out there for a few dev channel releases without problems.
const char kDisableHolePunching[]           = "disable-hole-punching";

// Enables the tabs expose feature ( http://crbug.com/50307 ).
const char kEnableExposeForTabs[] = "enable-expose-for-tabs";

// Cause the OS X sandbox write to syslog every time an access to a resource
// is denied by the sandbox.
const char kEnableSandboxLogging[]          = "enable-sandbox-logging";
#else
// Enable Kiosk mode.
const char kKioskMode[]                     = "kiosk";
#endif

#ifndef NDEBUG
// Debug only switch to specify which gears plugin dll to load.
const char kGearsPluginPathOverride[]       = "gears-plugin-path";

// Makes sure any sync login attempt will fail with an error.  (Only
// used for testing.)
const char kInvalidateSyncLogin[]           = "invalidate-sync-login";

// Makes sure any sync xmpp login attempt will fail with an error.  (Only
// used for testing.)
const char kInvalidateSyncXmppLogin[]       = "invalidate-sync-xmpp-login";

// Debug only switch to specify which websocket live experiment host to be used.
// If host is specified, it also makes initial delay shorter (5 min to 5 sec)
// to make it faster to test websocket live experiment code.
const char kWebSocketLiveExperimentHost[]   = "websocket-live-experiment-host";
#endif

// USE_SECCOMP_SANDBOX controls whether the seccomp sandbox is opt-in or -out.
// TODO(evan): unify all of these once we turn the seccomp sandbox always
// on.  Also remove the #include of command_line.h above.
#if defined(USE_SECCOMP_SANDBOX)
// Disable the seccomp sandbox (Linux only)
const char kDisableSeccompSandbox[]         = "disable-seccomp-sandbox";
#else
// Enable the seccomp sandbox (Linux only)
const char kEnableSeccompSandbox[]          = "enable-seccomp-sandbox";
#endif

bool SeccompSandboxEnabled() {
#if defined(USE_SECCOMP_SANDBOX)
  return !CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kDisableSeccompSandbox);
#else
  return CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kEnableSeccompSandbox);
#endif
}

// -----------------------------------------------------------------------------
// DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
//
// You were going to just dump your switches here, weren't you? Instead,
// please put them in alphabetical order above, or in order inside the
// appropriate ifdef at the bottom. The order should match the header.
// -----------------------------------------------------------------------------

}  // namespace switches