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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #include "chrome/common/chrome_switches.h"
6 
7 #include "base/base_switches.h"
8 #include "base/command_line.h"
9 
10 namespace switches {
11 
12 // -----------------------------------------------------------------------------
13 // Can't find the switch you are looking for? Try looking in:
14 // ash/ash_switches.cc
15 // base/base_switches.cc
16 // chromeos/chromeos_switches.cc
17 // etc.
18 //
19 // When commenting your switch, please use the same voice as surrounding
20 // comments. Imagine "This switch..." at the beginning of the phrase, and it'll
21 // all work out.
22 // -----------------------------------------------------------------------------
23 
24 // Allows third-party content included on a page to prompt for a HTTP basic
25 // auth username/password pair.
26 const char kAllowCrossOriginAuthPrompt[]    = "allow-cross-origin-auth-prompt";
27 
28 // On ChromeOS, file:// access is disabled except for certain whitelisted
29 // directories. This switch re-enables file:// for testing.
30 const char kAllowFileAccess[]               = "allow-file-access";
31 
32 // Allow non-secure origins to use the screen capture API and the desktopCapture
33 // extension API.
34 const char kAllowHttpScreenCapture[] = "allow-http-screen-capture";
35 
36 #if defined(ENABLE_PLUGINS)
37 // Specifies comma-separated list of extension ids or hosts to grant
38 // access to CRX file system APIs.
39 const char kAllowNaClCrxFsAPI[]             = "allow-nacl-crxfs-api";
40 
41 // Specifies comma-separated list of extension ids or hosts to grant
42 // access to file handle APIs.
43 const char kAllowNaClFileHandleAPI[]        = "allow-nacl-file-handle-api";
44 
45 // Specifies comma-separated list of extension ids or hosts to grant
46 // access to TCP/UDP socket APIs.
47 const char kAllowNaClSocketAPI[]            = "allow-nacl-socket-api";
48 #endif
49 
50 // Don't block outdated plugins.
51 const char kAllowOutdatedPlugins[]          = "allow-outdated-plugins";
52 
53 // By default, an https page cannot run JavaScript, CSS or plug-ins from http
54 // URLs. This provides an override to get the old insecure behavior.
55 const char kAllowRunningInsecureContent[]   = "allow-running-insecure-content";
56 
57 // Specifies the threshold to be used when determining of an Alternate-Protocol
58 // advertisement will be honored. If the advertised probability is larger
59 // than the threshold, then it will be honored.
60 const char kAlternateProtocolProbabilityThreshold[] =
61     "alternate-protocol-probability-threshold";
62 
63 // Prevents Chrome from requiring authorization to run certain widely installed
64 // but less commonly used plug-ins.
65 const char kAlwaysAuthorizePlugins[]        = "always-authorize-plugins";
66 
67 // Specifies that the extension-app with the specified id should be launched
68 // according to its configuration.
69 const char kAppId[]                         = "app-id";
70 
71 // Specifies that the associated value should be launched in "application"
72 // mode.
73 const char kApp[]                           = "app";
74 
75 // Specifies an URL to use for app list start page.
76 const char kAppListStartPageURL[]           = "app-list-start-page-url";
77 
78 // Overrides the apps checkout URL, which is used to determine when to expose
79 // some private APIs.
80 const char kAppsCheckoutURL[]               = "apps-checkout-url";
81 
82 // The URL that the webstore APIs download extensions from.
83 // Note: the URL must contain one '%s' for the extension ID.
84 const char kAppsGalleryDownloadURL[]        = "apps-gallery-download-url";
85 
86 // The URL to use for the gallery link in the app launcher.
87 const char kAppsGalleryURL[]                = "apps-gallery-url";
88 
89 // The update url used by gallery/webstore extensions.
90 const char kAppsGalleryUpdateURL[]          = "apps-gallery-update-url";
91 
92 // Value of GAIA auth code for --force-app-mode.
93 const char kAppModeAuthCode[]               = "app-mode-auth-code";
94 
95 // Value of OAuth2 refresh token for --force-app-mode.
96 const char kAppModeOAuth2Token[]            = "app-mode-oauth-token";
97 
98 // Enables overriding the path for the default authentication extension.
99 const char kAuthExtensionPath[]             = "auth-ext-path";
100 
101 // Whitelist of servers that Negotiate will generate delegated Kerberos tickets
102 // for.
103 const char kAuthNegotiateDelegateWhitelist[] =
104     "auth-negotiate-delegate-whitelist";
105 
106 // HTTP authentication schemes to enable. This is a comma-separated list of
107 // authentication schemes (basic, digest, ntlm, and negotiate). By default all
108 // schemes are enabled. The primary use of this command line flag is to help
109 // triage authentication-related issues reported by end-users.
110 const char kAuthSchemes[]                   = "auth-schemes";
111 
112 // Whitelist of servers which NTLM and Negotiate can automatically authenticate
113 // with using the default credentials of the currently logged in user.
114 const char kAuthServerWhitelist[]           = "auth-server-whitelist";
115 
116 // A flag that is used to tell Chrome that it was launched automatically at
117 // computer startup and not by some user action.
118 const char kAutoLaunchAtStartup[]           = "auto-launch-at-startup";
119 
120 // This flag makes Chrome auto-select the provided choice when an extension asks
121 // permission to start desktop capture. Should only be used for tests. For
122 // instance, --auto-select-desktop-capture-source="Entire screen" will
123 // automatically select to share the entire screen in English locales.
124 const char kAutoSelectDesktopCaptureSource[] =
125     "auto-select-desktop-capture-source";
126 
127 // Certificate Transparency: Uses the provided log(s) for checking Signed
128 // Certificate Timestamps provided with certificates.
129 // The switch's value is:
130 //   log_description:log_key,log_description:log_key,...
131 // where
132 //   log_description is a textual description of the log.
133 //   log_key is a Base64'd DER-encoded SubjectPublicKeyInfo of the log's
134 //   public key.
135 // Multiple logs can be specified by repeating description:key pairs,
136 // separated by a comma.
137 const char kCertificateTransparencyLog[] =
138     "certificate-transparency-log";
139 
140 // How often (in seconds) to check for updates. Should only be used for testing
141 // purposes.
142 const char kCheckForUpdateIntervalSec[]     = "check-for-update-interval";
143 
144 // Checks the cloud print connector policy, informing the service process if
145 // the policy is set to disallow the connector, then quits.
146 const char kCheckCloudPrintConnectorPolicy[] =
147     "check-cloud-print-connector-policy";
148 
149 // Comma-separated list of SSL cipher suites to disable.
150 const char kCipherSuiteBlacklist[]          = "cipher-suite-blacklist";
151 
152 // Tells chrome to display the cloud print dialog and upload the specified file
153 // for printing.
154 const char kCloudPrintFile[]                = "cloud-print-file";
155 
156 // Specifies the mime type to be used when uploading data from the file
157 // referenced by cloud-print-file. Defaults to "application/pdf" if
158 // unspecified.
159 const char kCloudPrintFileType[]            = "cloud-print-file-type";
160 
161 // Used with kCloudPrintFile to specify a JSON print ticket for the resulting
162 // print job. Defaults to null if unspecified.
163 const char kCloudPrintPrintTicket[]         = "cloud-print-print-ticket";
164 
165 // Used with kCloudPrintFile to specify a title for the resulting print job.
166 const char kCloudPrintJobTitle[]            = "cloud-print-job-title";
167 
168 // Setup cloud print proxy for provided printers. This does not start
169 // service or register proxy for autostart.
170 const char kCloudPrintSetupProxy[]          = "cloud-print-setup-proxy";
171 
172 // Comma-separated list of BrowserThreads that cause browser process to crash
173 // if the given browser thread is not responsive. UI,IO,DB,FILE,CACHE are the
174 // list of BrowserThreads that are supported.
175 //
176 // For example:
177 //    --crash-on-hang-threads=UI:3:18,IO:3:18 --> Crash the browser if UI or IO
178 //      is not responsive for 18 seconds and the number of browser threads that
179 //      are responding is less than or equal to 3.
180 const char kCrashOnHangThreads[]            = "crash-on-hang-threads";
181 
182 // Some platforms like ChromeOS default to empty desktop.
183 // Browser tests may need to add this switch so that at least one browser
184 // instance is created on startup.
185 // TODO(nkostylev): Investigate if this switch could be removed.
186 // (http://crbug.com/148675)
187 const char kCreateBrowserOnStartupForTests[] =
188     "create-browser-on-startup-for-tests";
189 
190 // Specifies the chrome-extension:// URL for the contents of an additional page
191 // added to the experimental app launcher.
192 const char kCustomLauncherPage[]            = "custom-launcher-page";
193 
194 // Enables a frame context menu item that toggles the frame in and out of glass
195 // mode (Windows Vista and up only).
196 const char kDebugEnableFrameToggle[]        = "debug-enable-frame-toggle";
197 
198 // Adds debugging entries such as Inspect Element to context menus of packed
199 // apps.
200 const char kDebugPackedApps[]               = "debug-packed-apps";
201 
202 // Triggers a plethora of diagnostic modes.
203 const char kDiagnostics[]                   = "diagnostics";
204 
205 // Sets the output format for diagnostic modes enabled by diagnostics flag.
206 const char kDiagnosticsFormat[]             = "diagnostics-format";
207 
208 // Tells the diagnostics mode to do the requested recovery step(s).
209 const char kDiagnosticsRecovery[]           = "diagnostics-recovery";
210 
211 // When kEnableSettingsWindow is used, About is shown as an overlay in Settings
212 // instead of as a separate page, unless this flag is specified.
213 const char kDisableAboutInSettings[]        = "disable-about-in-settings";
214 
215 // Disables the experimental asynchronous DNS client.
216 const char kDisableAsyncDns[]               = "disable-async-dns";
217 
218 // Disables CNAME lookup of the host when generating the Kerberos SPN for a
219 // Negotiate challenge. See HttpAuthHandlerNegotiate::CreateSPN for more
220 // background.
221 const char kDisableAuthNegotiateCnameLookup[] =
222     "disable-auth-negotiate-cname-lookup";
223 
224 // Disable several subsystems which run network requests in the background.
225 // This is for use when doing network performance testing to avoid noise in the
226 // measurements.
227 const char kDisableBackgroundNetworking[]   = "disable-background-networking";
228 
229 // Disables the bundled PPAPI version of Flash.
230 const char kDisableBundledPpapiFlash[]      = "disable-bundled-ppapi-flash";
231 
232 // Disables the client-side phishing detection feature. Note that even if
233 // client-side phishing detection is enabled, it will only be active if the
234 // user has opted in to UMA stats and SafeBrowsing is enabled in the
235 // preferences.
236 const char kDisableClientSidePhishingDetection[] =
237     "disable-client-side-phishing-detection";
238 
239 // Disable default component extensions with background pages - useful for
240 // performance tests where these pages may interfere with perf results.
241 const char kDisableComponentExtensionsWithBackgroundPages[] =
242     "disable-component-extensions-with-background-pages";
243 
244 const char kDisableComponentUpdate[]        = "disable-component-update";
245 
246 // Disables installation of default apps on first run. This is used during
247 // automated testing.
248 const char kDisableDefaultApps[]            = "disable-default-apps";
249 
250 // Disables device discovery notifications.
251 const char kDisableDeviceDiscoveryNotifications[] =
252     "disable-device-discovery-notifications";
253 
254 // Disables Domain Reliability Monitoring.
255 const char kDisableDomainReliability[]      = "disable-domain-reliability";
256 
257 // Disable extensions.
258 const char kDisableExtensions[]             = "disable-extensions";
259 
260 // Disable checking for user opt-in for extensions that want to inject script
261 // into file URLs (ie, always allow it). This is used during automated testing.
262 const char kDisableExtensionsFileAccessCheck[] =
263     "disable-extensions-file-access-check";
264 
265 // Disable the net::URLRequestThrottlerManager functionality for
266 // requests originating from extensions.
267 const char kDisableExtensionsHttpThrottling[] =
268     "disable-extensions-http-throttling";
269 
270 // Don't resolve hostnames to IPv6 addresses. This can be used when debugging
271 // issues relating to IPv6, but shouldn't otherwise be needed. Be sure to file
272 // bugs if something isn't working properly in the presence of IPv6. This flag
273 // can be overidden by the "enable-ipv6" flag.
274 const char kDisableIPv6[]                   = "disable-ipv6";
275 
276 // Disable the behavior that the second click on a launcher item (the click when
277 // the item is already active) minimizes the item.
278 const char kDisableMinimizeOnSecondLauncherItemClick[] =
279     "disable-minimize-on-second-launcher-item-click";
280 
281 // Disables the menu on the NTP for accessing sessions from other devices.
282 const char kDisableNTPOtherSessionsMenu[]   = "disable-ntp-other-sessions-menu";
283 
284 // Disables the Material Design NTP.
285 const char kDisableMaterialDesignNTP[]      = "disable-material-design-ntp";
286 
287 // Disable auto-reload of error pages if offline.
288 const char kDisableOfflineAutoReload[]       = "disable-offline-auto-reload";
289 
290 // Disable only auto-reloading error pages when the tab is visible.
291 const char kDisableOfflineAutoReloadVisibleOnly[] =
292     "disable-offline-auto-reload-visible-only";
293 
294 // Disable the origin chip.
295 const char kDisableOriginChip[]             = "disable-origin-chip";
296 
297 // Disable the setting to prompt the user for their OS account password before
298 // revealing plaintext passwords in the password manager.
299 const char kDisablePasswordManagerReauthentication[] =
300     "disable-password-manager-reauthentication";
301 
302 // Enables searching for people from the apps list search box.
303 const char kDisablePeopleSearch[]           = "disable-people-search";
304 
305 // Don't use bubbles for content permissions requests instead of infobars.
306 const char kDisablePermissionsBubbles[]      = "disable-permissions-bubbles";
307 
308 // Disable pop-up blocking.
309 const char kDisablePopupBlocking[]          = "disable-popup-blocking";
310 
311 // Disable speculative TCP/IP preconnection.
312 const char kDisablePreconnect[]             = "disable-preconnect";
313 
314 // Disable prerendering based on local browsing history.
315 const char kDisablePrerenderLocalPredictor[] =
316     "disable-prerender-local-predictor";
317 
318 // Disables print preview (For testing, and for users who don't like us. :[ )
319 const char kDisablePrintPreview[]           = "disable-print-preview";
320 
321 // Normally when the user attempts to navigate to a page that was the result of
322 // a post we prompt to make sure they want to. This switch may be used to
323 // disable that check. This switch is used during automated testing.
324 const char kDisablePromptOnRepost[]         = "disable-prompt-on-repost";
325 
326 // Disables support for the QUIC protocol.
327 const char kDisableQuic[]                   = "disable-quic";
328 
329 // Disable use of pacing of QUIC packets.
330 // This only has an effect if QUIC protocol is enabled.
331 const char kDisableQuicPacing[]             = "disable-quic-pacing";
332 
333 // Disable use of Chromium's port selection for the ephemeral port via bind().
334 // This only has an effect if QUIC protocol is enabled.
335 const char kDisableQuicPortSelection[]      = "disable-quic-port-selection";
336 
337 // Disable use of time-base loss detection for QUIC connections.
338 // This only has an effect if QUIC protocol is enabled.
339 const char kDisableQuicTimeBasedLossDetection[] =
340     "disable-quic-time-based-loss-detection";
341 
342 // Prevents the save password bubble from being enabled.
343 const char kDisableSavePasswordBubble[] = "disable-save-password-bubble";
344 
345 // Disables the "search button in omnibox" experiment.
346 const char kDisableSearchButtonInOmnibox[]  =
347     "disable-search-button-in-omnibox";
348 
349 // Disables using bubbles for session restore request.
350 const char kDisableSessionCrashedBubble[] = "disable-session-crashed-bubble";
351 
352 // Disable SPDY/3.1. This is a temporary testing flag.
353 const char kDisableSpdy31[]                 = "disable-spdy31";
354 
355 // Disables the suggestions service.
356 const char kDisableSuggestionsService[]     = "disable-suggestions-service";
357 
358 // Disables syncing browser data to a Google Account.
359 const char kDisableSync[]                   = "disable-sync";
360 
361 // Disable synced notifications.
362 const char kDisableSyncSyncedNotifications[] =
363     "disable-sync-synced-notifications";
364 
365 // Disables syncing one or more sync data types that are on by default.
366 // See sync/internal_api/public/base/model_type.h for possible types. Types
367 // should be comma separated, and follow the naming convention for string
368 // representation of model types, e.g.:
369 // --disable-synctypes='Typed URLs, Bookmarks, Autofill Profiles'
370 const char kDisableSyncTypes[]              = "disable-sync-types";
371 
372 // Disables the backend service for web resources.
373 const char kDisableWebResources[]           = "disable-web-resources";
374 
375 // Some tests seem to require the application to close when the last
376 // browser window is closed. Thus, we need a switch to force this behavior
377 // for ChromeOS Aura, disable "zero window mode".
378 // TODO(pkotwicz): Investigate if this bug can be removed.
379 // (http://crbug.com/119175)
380 const char kDisableZeroBrowsersOpenForTests[] =
381     "disable-zero-browsers-open-for-tests";
382 
383 // Use a specific disk cache location, rather than one derived from the
384 // UserDatadir.
385 const char kDiskCacheDir[]                  = "disk-cache-dir";
386 
387 // Forces the maximum disk space to be used by the disk cache, in bytes.
388 const char kDiskCacheSize[]                 = "disk-cache-size";
389 
390 const char kDnsLogDetails[]                 = "dns-log-details";
391 
392 // Disables prefetching of DNS information.
393 const char kDnsPrefetchDisable[]            = "dns-prefetch-disable";
394 
395 // Requests that a running browser process dump its collected histograms to a
396 // given file. The file is overwritten if it exists.
397 const char kDumpBrowserHistograms[]         = "dump-browser-histograms";
398 
399 // Overrides the path of Easy Unlock component app.
400 extern const char kEasyUnlockAppPath[]      = "easy-unlock-app-path";
401 
402 // If set, the app list will be enabled as if enabled from CWS.
403 const char kEnableAppList[]                 = "enable-app-list";
404 
405 // Enable OS integration for Chrome app file associations.
406 const char kEnableAppsFileAssociations[]    = "enable-apps-file-associations";
407 
408 // Enables the experimental asynchronous DNS client.
409 const char kEnableAsyncDns[]                = "enable-async-dns";
410 
411 // Enables the inclusion of non-standard ports when generating the Kerberos SPN
412 // in response to a Negotiate challenge. See
413 // HttpAuthHandlerNegotiate::CreateSPN for more background.
414 const char kEnableAuthNegotiatePort[]       = "enable-auth-negotiate-port";
415 
416 // Enables the benchmarking extensions.
417 const char kEnableBenchmarking[]            = "enable-benchmarking";
418 
419 // Enables client hints, which adds hints about browser state to HTTP requests.
420 const char kEnableClientHints[]             = "enable-client-hints";
421 
422 // Enables the multi-level undo system for bookmarks.
423 const char kEnableBookmarkUndo[]            = "enable-bookmark-undo";
424 
425 // This applies only when the process type is "service". Enables the Cloud
426 // Print Proxy component within the service process.
427 const char kEnableCloudPrintProxy[]         = "enable-cloud-print-proxy";
428 
429 // If true devtools experimental settings are enabled.
430 const char kEnableDevToolsExperiments[]     = "enable-devtools-experiments";
431 
432 // Enable device discovery notifications.
433 const char kEnableDeviceDiscoveryNotifications[] =
434     "enable-device-discovery-notifications";
435 
436 // Enables the DOM distiller.
437 const char kEnableDomDistiller[]               = "enable-dom-distiller";
438 
439 // Enables Domain Reliability Monitoring.
440 const char kEnableDomainReliability[]          = "enable-domain-reliability";
441 
442 // Enable Enhanced Bookmarks.
443 const char kEnhancedBookmarksExperiment[] = "enhanced-bookmarks-experiment";
444 
445 // Enables experimentation with ephemeral apps, which are launched without
446 // installing in Chrome.
447 const char kEnableEphemeralApps[]           = "enable-ephemeral-apps";
448 
449 // Enables experimental hotword detection features. These features include
450 // using a new component extension for performing hotword detection, new UI
451 // flows, and always-on detection.
452 const char kEnableExperimentalHotwording[]  = "enable-experimental-hotwording";
453 
454 // Enables logging for extension activity.
455 const char kEnableExtensionActivityLogging[] =
456     "enable-extension-activity-logging";
457 
458 const char kEnableExtensionActivityLogTesting[] =
459     "enable-extension-activity-log-testing";
460 
461 // Enable the fast unload controller, which speeds up tab/window close by
462 // running a tab's onunload js handler independently of the GUI -
463 // crbug.com/142458 .
464 const char kEnableFastUnload[]         = "enable-fast-unload";
465 
466 // Enables IPv6 support, even if probes suggest that it may not be fully
467 // supported. Some probes may require internet connections, and this flag will
468 // allow support independent of application testing. This flag overrides
469 // "disable-ipv6" which appears elswhere in this file.
470 const char kEnableIPv6[]                    = "enable-ipv6";
471 
472 // Enables experimentation with launching ephemeral apps via hyperlinks.
473 const char kEnableLinkableEphemeralApps[]   = "enable-linkable-ephemeral-apps";
474 
475 // Runs the Native Client inside the renderer process and enables GPU plugin
476 // (internally adds lEnableGpuPlugin to the command line).
477 const char kEnableNaCl[]                    = "enable-nacl";
478 
479 // Enables the network-related benchmarking extensions.
480 const char kEnableNetBenchmarking[]         = "enable-net-benchmarking";
481 
482 // Enables the Material Design NTP.
483 const char kEnableMaterialDesignNTP[]       = "enable-material-design-ntp";
484 
485 // Enables NPN with HTTP. It means NPN is enabled but SPDY won't be used.
486 // HTTP is still used for all requests.
487 const char kEnableNpnHttpOnly[]             = "enable-npn-http";
488 
489 // Enable auto-reload of error pages if offline.
490 const char kEnableOfflineAutoReload[]       = "enable-offline-auto-reload";
491 
492 // Only auto-reload error pages when the tab is visible.
493 const char kEnableOfflineAutoReloadVisibleOnly[] =
494     "enable-offline-auto-reload-visible-only";
495 
496 // Enable/Disable offering a "Load stale copy" option to the user if offline.
497 const char kEnableOfflineLoadStaleCache[]   = "enable-offline-load-stale-cache";
498 const char kDisableOfflineLoadStaleCache[]  =
499     "disable-offline-load-stale-cache";
500 
501 // Controls which branch of the origin chip in location bar experiment is
502 // enabled.
503 //
504 // We're using independent flags here (as opposed to a common flag with
505 // different values) to be able to enable/disable the entire experience
506 // associated with this feature server-side from the FieldTrial (the complete
507 // experience includes other flag changes as well). It is not currently possible
508 // to do that with "flag=value" flags.
509 const char kEnableOriginChipAlways[]        = "enable-origin-chip-always";
510 const char kEnableOriginChipOnSrp[]         = "enable-origin-chip-on-srp";
511 
512 // Enables panels (always on-top docked pop-up windows).
513 const char kEnablePanels[]                  = "enable-panels";
514 
515 // Enables presenting plugin placeholder content as shadow DOM.
516 const char kEnablePluginPlaceholderShadowDom[] =
517     "enable-plugin-placeholder-shadow-dom";
518 
519 // Enables showing unregistered printers in print preview
520 const char kEnablePrintPreviewRegisterPromos[] =
521     "enable-print-preview-register-promos";
522 
523 // Enable Privet storage.
524 const char kEnablePrivetStorage[]           = "enable-privet-storage";
525 
526 // Enables tracking of tasks in profiler for viewing via about:profiler.
527 // To predominantly disable tracking (profiling), use the command line switch:
528 // --enable-profiling=0
529 // Some tracking will still take place at startup, but it will be turned off
530 // during chrome_browser_main.
531 const char kEnableProfiling[]               = "enable-profiling";
532 
533 // Enables query in the omnibox.
534 const char kEnableQueryExtraction[]         = "enable-query-extraction";
535 
536 // Enables support for the QUIC protocol.  This is a temporary testing flag.
537 const char kEnableQuic[]                    = "enable-quic";
538 
539 // Disable use of pacing of QUIC packets.
540 // This only has an effect if QUIC protocol is enabled.
541 const char kEnableQuicPacing[]              = "enable-quic-pacing";
542 
543 // Enable use of Chromium's port selection for the ephemeral port via bind().
544 // This only has an effect if QUIC protocol is enabled.
545 const char kEnableQuicPortSelection[]       = "enable-quic-port-selection";
546 
547 // Enables use of time-base loss detection for QUIC connections.
548 // This only has an effect if QUIC protocol is enabled.
549 const char kEnableQuicTimeBasedLossDetection[] =
550     "enable-quic-time-based-loss-detection";
551 
552 // Enables context-sensitive reader mode button in the toolbar.
553 const char kEnableReaderModeToolbarIcon[] =
554     "enable-reader-mode-toolbar-icon";
555 
556 // Enables save password prompt bubble.
557 const char kEnableSavePasswordBubble[]      = "enable-save-password-bubble";
558 
559 // Enables SDCH for https schemes.
560 const char kEnableSdchOverHttps[] = "enable-sdch-over-https";
561 
562 // Controls which branch of the "search button in omnibox" experiment is
563 // enabled.
564 //
565 // We're using independent flags here (as opposed to a common flag with
566 // different values) to be able to enable/disable the entire experience
567 // associated with this feature server-side from the FieldTrial (the complete
568 // experience includes other flag changes as well). It is not currently possible
569 // to do that with "flag=value" flags.
570 const char kEnableSearchButtonInOmniboxAlways[] =
571     "enable-search-button-in-omnibox-always";
572 const char kEnableSearchButtonInOmniboxForStr[] =
573     "enable-search-button-in-omnibox-for-str";
574 const char kEnableSearchButtonInOmniboxForStrOrIip[] =
575     "enable-search-button-in-omnibox-for-str-or-iip";
576 
577 // Enables using bubbles for session restore request instead of infobars.
578 const char kEnableSessionCrashedBubble[] = "enable-session-crashed-bubble";
579 
580 // Enables the deprecated window.showModalDialog API. This is slated for
581 // removal.
582 const char kEnableShowModalDialog[] = "enable-show-modal-dialog";
583 
584 // Enable or disable settings in a separate browser window per profile
585 // (see SettingsWindowEnabled() below).
586 const char kEnableSettingsWindow[]           = "enable-settings-window";
587 const char kDisableSettingsWindow[]          = "disable-settings-window";
588 
589 // Enable SPDY/4, aka HTTP/2. This is a temporary testing flag.
590 const char kEnableSpdy4[]                   = "enable-spdy4";
591 
592 // Enables auto correction for misspelled words.
593 const char kEnableSpellingAutoCorrect[]     = "enable-spelling-auto-correct";
594 
595 // Enables participation in the field trial for user feedback to spelling
596 // service.
597 const char kEnableSpellingFeedbackFieldTrial[] =
598     "enable-spelling-feedback-field-trial";
599 
600 // Enables a feature that holds back some SSLConnectJobs in order to
601 // minimize the number of full SSL handshakes completed.
602 const char kEnableSSLConnectJobWaiting[] = "enable-ssl-connect-job-waiting";
603 
604 // Enables an experimental hosted app experience.
605 const char kEnableStreamlinedHostedApps[]   = "enable-streamlined-hosted-apps";
606 
607 // Enables the suggestions service.
608 const char kEnableSuggestionsService[]      = "enable-suggestions-service";
609 
610 // Enables the supervised user host blacklist.
611 const char kEnableSupervisedUserBlacklist[] =
612     "enable-supervised-user-blacklist";
613 
614 // Enables synced notifications.
615 const char kEnableSyncSyncedNotifications[] =
616     "enable-sync-synced-notifications";
617 
618 // Enables synced articles.
619 const char kEnableSyncArticles[]            = "enable-sync-articles";
620 
621 // Enables user control over muting tab audio from the tab strip.
622 const char kEnableTabAudioMuting[]  = "enable-tab-audio-muting";
623 
624 // Enables fanciful thumbnail processing. Used with NTP for
625 // instant-extended-api, where thumbnails are generally smaller.
626 const char kEnableThumbnailRetargeting[]   = "enable-thumbnail-retargeting";
627 
628 // Enables Translate experimental new UX which replaces the infobar.
629 const char kEnableTranslateNewUX[]         = "enable-translate-new-ux";
630 
631 // Enables Alternate-Protocol when the port is user controlled (> 1024).
632 const char kEnableUserAlternateProtocolPorts[] =
633     "enable-user-controlled-alternate-protocol-ports";
634 
635 // Uses WebSocket over SPDY.
636 const char kEnableWebSocketOverSpdy[]       = "enable-websocket-over-spdy";
637 
638 // Enables the Website Settings page on the Settings page.
639 const char kEnableWebsiteSettingsManager[]  = "enable-website-settings-manager";
640 
641 // Explicitly allows additional ports using a comma-separated list of port
642 // numbers.
643 const char kExplicitlyAllowedPorts[]        = "explicitly-allowed-ports";
644 
645 // Values for the kExtensionContentVerification flag.
646 // See ContentVerifierDelegate::Mode for more explanation.
647 const char kExtensionContentVerificationBootstrap[] = "bootstrap";
648 const char kExtensionContentVerificationEnforceStrict[] = "enforce_strict";
649 const char kExtensionContentVerificationEnforce[] = "enforce";
650 
651 // Name of the command line flag to force content verification to be on in one
652 // of various modes.
653 const char kExtensionContentVerification[] = "extension-content-verification";
654 
655 // Turns on extension install verification if it would not otherwise have been
656 // turned on.
657 const char kExtensionsInstallVerification[] = "extensions-install-verification";
658 
659 // Specifies a comma-separated list of extension ids that should be forced to
660 // be treated as not from the webstore when doing install verification.
661 const char kExtensionsNotWebstore[] = "extensions-not-webstore";
662 
663 // Frequency in seconds for Extensions auto-update.
664 const char kExtensionsUpdateFrequency[]     = "extensions-update-frequency";
665 
666 // Fakes the channel of the browser for purposes of Variations filtering. This
667 // is to be used for testing only. Possible values are "stable", "beta", "dev"
668 // and "canary". Note that this only applies if the browser's reported channel
669 // is UNKNOWN.
670 const char kFakeVariationsChannel[]         = "fake-variations-channel";
671 
672 // If this flag is present then this command line is being delegated to an
673 // already running chrome process via the fast path, ie: before chrome.dll is
674 // loaded. It is useful to tell the difference for tracking purposes.
675 const char kFastStart[]            = "fast-start";
676 
677 // These two flags are added around the switches about:flags adds to the
678 // command line. This is useful to see which switches were added by about:flags
679 // on about:version. They don't have any effect.
680 const char kFlagSwitchesBegin[]             = "flag-switches-begin";
681 const char kFlagSwitchesEnd[]               = "flag-switches-end";
682 
683 // Forces application mode. This hides certain system UI elements and forces
684 // the app to be installed if it hasn't been already.
685 const char kForceAppMode[]                  = "force-app-mode";
686 
687 // Displays the First Run experience when the browser is started, regardless of
688 // whether or not it's actually the First Run (this overrides kNoFirstRun).
689 const char kForceFirstRun[]                 = "force-first-run";
690 
691 // Forces additional Chrome Variation Ids that will be sent in X-Client-Data
692 // header, specified as a 64-bit encoded list of numeric experiment ids. Ids
693 // prefixed with the character "t" will be treated as Trigger Variation Ids.
694 const char kForceVariationIds[]             = "force-variation-ids";
695 
696 // Specifies a custom name for the GSSAPI library to load.
697 const char kGSSAPILibraryName[]             = "gssapi-library-name";
698 
699 // These flags show the man page on Linux. They are equivalent to each
700 // other.
701 const char kHelp[]                          = "help";
702 const char kHelpShort[]                     = "h";
703 
704 // Makes Windows happy by allowing it to show "Enable access to this program"
705 // checkbox in Add/Remove Programs->Set Program Access and Defaults. This only
706 // shows an error box because the only way to hide Chrome is by uninstalling
707 // it.
708 const char kHideIcons[]                     = "hide-icons";
709 
710 // Enables grouping websites by domain and filtering them by period.
711 const char kHistoryEnableGroupByDomain[]    = "enable-grouped-history";
712 
713 // Specifies which page will be displayed in newly-opened tabs. We need this
714 // for testing purposes so that the UI tests don't depend on what comes up for
715 // http://google.com.
716 const char kHomePage[]                      = "homepage";
717 
718 // Comma-separated list of rules that control how hostnames are mapped.
719 //
720 // For example:
721 //    "MAP * 127.0.0.1" --> Forces all hostnames to be mapped to 127.0.0.1
722 //    "MAP *.google.com proxy" --> Forces all google.com subdomains to be
723 //                                 resolved to "proxy".
724 //    "MAP test.com [::1]:77 --> Forces "test.com" to resolve to IPv6 loopback.
725 //                               Will also force the port of the resulting
726 //                               socket address to be 77.
727 //    "MAP * baz, EXCLUDE www.google.com" --> Remaps everything to "baz",
728 //                                            except for "www.google.com".
729 //
730 // These mappings apply to the endpoint host in a net::URLRequest (the TCP
731 // connect and host resolver in a direct connection, and the CONNECT in an http
732 // proxy connection, and the endpoint host in a SOCKS proxy connection).
733 const char kHostRules[]                     = "host-rules";
734 
735 // The maximum number of concurrent host resolve requests (i.e. DNS) to allow
736 // (not counting backup attempts which would also consume threads).
737 // --host-resolver-retry-attempts must be set to zero for this to be exact.
738 const char kHostResolverParallelism[]       = "host-resolver-parallelism";
739 
740 // The maximum number of retry attempts to resolve the host. Set this to zero
741 // to disable host resolver retry attempts.
742 const char kHostResolverRetryAttempts[]     = "host-resolver-retry-attempts";
743 
744 // Causes net::URLFetchers to ignore requests for SSL client certificates,
745 // causing them to attempt an unauthenticated SSL/TLS session. This is intended
746 // for use when testing various service URLs (eg: kPromoServerURL, kSbURLPrefix,
747 // kSyncServiceURL, etc)
748 const char kIgnoreUrlFetcherCertRequests[]  =
749     "ignore-urlfetcher-cert-requests";
750 
751 // Causes the browser to launch directly in incognito mode.
752 const char kIncognito[]                     = "incognito";
753 
754 // Causes Chrome to initiate an installation flow for the given app.
755 const char kInstallChromeApp[]              = "install-chrome-app";
756 
757 // Causes Chrome to attempt to get metadata from the webstore for the
758 // app/extension ID given, and then prompt the user to download and install it.
759 // This is allowed *only* for ephemeral apps. All other ids will be ignored.
760 const char kInstallEphemeralAppFromWebstore[] =
761     "install-ephemeral-app-from-webstore";
762 
763 // Marks a renderer as an Instant process.
764 const char kInstantProcess[]                = "instant-process";
765 
766 // Invalidation service should use GCM network channel even if experiment is not
767 // enabled.
768 const char kInvalidationUseGCMChannel[]     = "invalidation-use-gcm-channel";
769 
770 // Enables experimental Harmony (ECMAScript 6) features.
771 const char kJavaScriptHarmony[]             = "javascript-harmony";
772 
773 // Specifies the testcase used by the IPC fuzzer.
774 const char kIpcFuzzerTestcase[]             = "ipc-fuzzer-testcase";
775 
776 // Used for testing - keeps browser alive after last browser window closes.
777 const char kKeepAliveForTest[]              = "keep-alive-for-test";
778 
779 // Enable Kiosk mode.
780 const char kKioskMode[]                     = "kiosk";
781 
782 // Print automatically in kiosk mode. |kKioskMode| must be set as well.
783 // See http://crbug.com/31395.
784 const char kKioskModePrinting[]             = "kiosk-printing";
785 
786 // Comma-separated list of directories with component extensions to load.
787 const char kLoadComponentExtension[]        = "load-component-extension";
788 
789 // Loads an extension from the specified directory.
790 const char kLoadExtension[]                 = "load-extension";
791 
792 // Makes Chrome default browser
793 const char kMakeDefaultBrowser[]            = "make-default-browser";
794 
795 // Use to opt-in user into Finch experiment groups.
796 const char kManualEnhancedBookmarks[] = "manual-enhanced-bookmarks";
797 const char kManualEnhancedBookmarksOptout[] =
798     "manual-enhanced-bookmarks-optout";
799 
800 // Forces the maximum disk space to be used by the media cache, in bytes.
801 const char kMediaCacheSize[]                = "media-cache-size";
802 
803 // Enables histograming of tasks served by MessageLoop. See
804 // about:histograms/Loop for results, which show frequency of messages on each
805 // thread, including APC count, object signalling count, etc.
806 const char kMessageLoopHistogrammer[]       = "message-loop-histogrammer";
807 
808 // Enables the recording of metrics reports but disables reporting. In contrast
809 // to kDisableMetrics, this executes all the code that a normal client would
810 // use for reporting, except the report is dropped rather than sent to the
811 // server. This is useful for finding issues in the metrics code during UI and
812 // performance tests.
813 const char kMetricsRecordingOnly[]          = "metrics-recording-only";
814 
815 // Sets the base logging level for the net log. Log 0 logs the most data.
816 // Intended primarily for use with --log-net-log.
817 const char kNetLogLevel[]                   = "net-log-level";
818 
819 // Disables the default browser check. Useful for UI/browser tests where we
820 // want to avoid having the default browser info-bar displayed.
821 const char kNoDefaultBrowserCheck[]         = "no-default-browser-check";
822 
823 // By default, an https page can load images, fonts or frames from an http
824 // page. This switch overrides this to block this lesser mixed-content problem.
825 const char kNoDisplayingInsecureContent[]   = "no-displaying-insecure-content";
826 
827 // Don't record/playback events when using record & playback.
828 const char kNoEvents[]                      = "no-events";
829 
830 // Disables all experiments set on about:flags. Does not disable about:flags
831 // itself. Useful if an experiment makes chrome crash at startup: One can start
832 // chrome with --no-experiments, disable the problematic lab at about:flags and
833 // then restart chrome without this switch again.
834 const char kNoExperiments[]                 = "no-experiments";
835 
836 // Skip First Run tasks, whether or not it's actually the First Run. Overridden
837 // by kForceFirstRun. This does not drop the First Run sentinel and thus doesn't
838 // prevent first run from occuring the next time chrome is launched without this
839 // flag.
840 const char kNoFirstRun[]                    = "no-first-run";
841 
842 // Whether or not the browser should warn if the profile is on a network share.
843 // This flag is only relevant for Windows currently.
844 const char kNoNetworkProfileWarning[]       = "no-network-profile-warning";
845 
846 // Don't send hyperlink auditing pings
847 const char kNoPings[]                       = "no-pings";
848 
849 // Don't use a proxy server, always make direct connections. Overrides any
850 // other proxy server flags that are passed.
851 const char kNoProxyServer[]                 = "no-proxy-server";
852 
853 // Disables the service process from adding itself as an autorun process. This
854 // does not delete existing autorun registrations, it just prevents the service
855 // from registering a new one.
856 const char kNoServiceAutorun[]              = "no-service-autorun";
857 
858 // Does not automatically open a browser window on startup (used when
859 // launching Chrome for the purpose of hosting background apps).
860 const char kNoStartupWindow[]               = "no-startup-window";
861 
862 // Disables checking whether we received an acknowledgment when registering
863 // a supervised user. Also disables the timeout during registration that waits
864 // for the ack. Useful when debugging against a server that does not
865 // support notifications.
866 const char kNoSupervisedUserAcknowledgmentCheck[]  =
867     "no-managed-user-acknowledgment-check";
868 
869 // Specifies the maximum number of threads to use for running the Proxy
870 // Autoconfig (PAC) script.
871 const char kNumPacThreads[]                 = "num-pac-threads";
872 
873 // Launches URL in new browser window.
874 const char kOpenInNewWindow[]               = "new-window";
875 
876 // Force use of QUIC for requests to the specified origin.
877 const char kOriginToForceQuicOn[]           = "origin-to-force-quic-on";
878 
879 // The time that a new chrome process which is delegating to an already running
880 // chrome process started. (See ProcessSingleton for more details.)
881 const char kOriginalProcessStartTime[]      = "original-process-start-time";
882 
883 // Enable the out of process PDF plugin.
884 const char kOutOfProcessPdf[] = "out-of-process-pdf";
885 
886 // Packages an extension to a .crx installable file from a given directory.
887 const char kPackExtension[]                 = "pack-extension";
888 
889 // Optional PEM private key to use in signing packaged .crx.
890 const char kPackExtensionKey[]              = "pack-extension-key";
891 
892 // Specifies the path to the user data folder for the parent profile.
893 const char kParentProfile[]                 = "parent-profile";
894 
895 // Development flag for permission request API. This flag is needed until
896 // the API is finalized.
897 // TODO(bauerb): Remove when this flag is not needed anymore.
898 const char kPermissionRequestApiScope[]     = "permission-request-api-scope";
899 
900 // Development flag for permission request API. This flag is needed until
901 // the API is finalized.
902 // TODO(bauerb): Remove when this flag is not needed anymore.
903 const char kPermissionRequestApiUrl[]       = "permission-request-api-url";
904 
905 // Read previously recorded data from the cache. Only cached data is read.
906 // See kRecordMode.
907 const char kPlaybackMode[]                  = "playback-mode";
908 
909 // Use the PPAPI (Pepper) Flash found at the given path.
910 const char kPpapiFlashPath[]                = "ppapi-flash-path";
911 
912 // Report the given version for the PPAPI (Pepper) Flash. The version should be
913 // numbers separated by '.'s (e.g., "12.3.456.78"). If not specified, it
914 // defaults to "10.2.999.999".
915 const char kPpapiFlashVersion[]             = "ppapi-flash-version";
916 
917 // Triggers prerendering of search base page to prefetch results for the typed
918 // omnibox query. Only has an effect when prerender is enabled.
919 const char kPrefetchSearchResults[]         = "prefetch-search-results";
920 
921 // Triggers prerendering of pages from suggestions in the omnibox. Only has an
922 // effect when Instant is either disabled or restricted to search, and when
923 // prerender is enabled.
924 const char kPrerenderFromOmnibox[]          = "prerender-from-omnibox";
925 // These are the values the kPrerenderFromOmnibox switch may have, as in
926 // "--prerender-from-omnibox=auto". auto: Allow field trial selection.
927 const char kPrerenderFromOmniboxSwitchValueAuto[] = "auto";
928 //   disabled: No prerendering.
929 const char kPrerenderFromOmniboxSwitchValueDisabled[] = "disabled";
930 //   enabled: Guaranteed prerendering.
931 const char kPrerenderFromOmniboxSwitchValueEnabled[] = "enabled";
932 // Controls speculative prerendering of pages, and content prefetching. Both
933 // are dispatched from <link rel=prefetch href=...> elements.
934 const char kPrerenderMode[]                 = "prerender";
935 // These are the values the kPrerenderMode switch may have, as in
936 // "--prerender=auto".
937 //   auto: Allow field trial selection for prerender.
938 const char kPrerenderModeSwitchValueAuto[]  = "auto";
939 //   disabled: No prerendering.
940 const char kPrerenderModeSwitchValueDisabled[] = "disabled";
941 //   enabled: Prerendering.
942 const char kPrerenderModeSwitchValueEnabled[] = "enabled";
943 
944 // Use IPv6 only for privet HTTP.
945 const char kPrivetIPv6Only[]                   = "privet-ipv6-only";
946 
947 // Outputs the product version information and quit. Used as an internal api to
948 // detect the installed version of Chrome on Linux.
949 const char kProductVersion[]                = "product-version";
950 
951 // Selects directory of profile to associate with the first browser launched.
952 const char kProfileDirectory[]              = "profile-directory";
953 
954 // Starts the sampling based profiler for the browser process at startup. This
955 // will only work if chrome has been built with the gyp variable profiling=1.
956 // The output will go to the value of kProfilingFile.
957 const char kProfilingAtStart[]              = "profiling-at-start";
958 
959 // Specifies a location for profiling output. This will only work if chrome has
960 // been built with the gyp variable profiling=1.
961 //
962 //   {pid} if present will be replaced by the pid of the process.
963 //   {count} if present will be incremented each time a profile is generated
964 //           for this process.
965 // The default is chrome-profile-{pid}.
966 const char kProfilingFile[]                 = "profiling-file";
967 
968 // Specifies a path for the output of task-level profiling which can be loaded
969 // and viewed in about:profiler.
970 const char kProfilingOutputFile[]           = "profiling-output-file";
971 
972 // Controls whether profile data is periodically flushed to a file. Normally
973 // the data gets written on exit but cases exist where chrome doesn't exit
974 // cleanly (especially when using single-process). A time in seconds can be
975 // specified.
976 const char kProfilingFlush[]                = "profiling-flush";
977 
978 // Specifies a custom URL for fetching NTP promo data.
979 const char kPromoServerURL[]                = "promo-server-url";
980 
981 // Forces proxy auto-detection.
982 const char kProxyAutoDetect[]               = "proxy-auto-detect";
983 
984 // Specifies a list of hosts for whom we bypass proxy settings and use direct
985 // connections. Ignored if --proxy-auto-detect or --no-proxy-server are also
986 // specified. This is a comma-separated list of bypass rules. See:
987 // "net/proxy/proxy_bypass_rules.h" for the format of these rules.
988 const char kProxyBypassList[]               = "proxy-bypass-list";
989 
990 // Uses the pac script at the given URL
991 const char kProxyPacUrl[]                   = "proxy-pac-url";
992 
993 // Uses a specified proxy server, overrides system settings. This switch only
994 // affects HTTP and HTTPS requests.
995 const char kProxyServer[]                   = "proxy-server";
996 
997 // Specifies a comma separated list of QUIC connection options to send to
998 // the server.
999 const char kQuicConnectionOptions[]         = "quic-connection-options";
1000 
1001 // Specifies the maximum length for a QUIC packet.
1002 const char kQuicMaxPacketLength[]           = "quic-max-packet-length";
1003 
1004 // Specifies the version of QUIC to use.
1005 const char kQuicVersion[]                   = "quic-version";
1006 
1007 // Chrome supports a playback and record mode.  Record mode saves *everything*
1008 // to the cache.  Playback mode reads data exclusively from the cache.  This
1009 // allows us to record a session into the cache and then replay it at will.
1010 // See also kPlaybackMode.
1011 const char kRecordMode[]                    = "record-mode";
1012 
1013 // Remember user proceeds through SSL interstitials for a specified amount of
1014 // time. In particular, remember these decisions through session restart. The
1015 // time delta to remember certificates should be specified in seconds.
1016 const char kRememberCertErrorDecisions[]    = "remember-cert-error-decisions";
1017 
1018 // If set, the app list will forget it has been installed on startup. Note this
1019 // doesn't prevent the app list from running, it just makes Chrome think the app
1020 // list hasn't been enabled (as in kEnableAppList) yet.
1021 const char kResetAppListInstallState[]      = "reset-app-list-install-state";
1022 
1023 // Indicates the last session should be restored on startup. This overrides the
1024 // preferences value and is primarily intended for testing. The value of this
1025 // switch is the number of tabs to wait until loaded before 'load completed' is
1026 // sent to the ui_test.
1027 const char kRestoreLastSession[]            = "restore-last-session";
1028 
1029 // Disable saving pages as HTML-only, disable saving pages as HTML Complete
1030 // (with a directory of sub-resources). Enable only saving pages as MHTML.
1031 // See http://crbug.com/120416 for how to remove this switch.
1032 const char kSavePageAsMHTML[]               = "save-page-as-mhtml";
1033 
1034 // If present, safebrowsing only performs update when
1035 // SafeBrowsingProtocolManager::ForceScheduleNextUpdate() is explicitly called.
1036 // This is used for testing only.
1037 const char kSbDisableAutoUpdate[] = "safebrowsing-disable-auto-update";
1038 
1039 // TODO(lzheng): Remove this flag once the feature works fine
1040 // (http://crbug.com/74848).
1041 //
1042 // Disables safebrowsing feature that checks download url and downloads
1043 // content's hash to make sure the content are not malicious.
1044 const char kSbDisableDownloadProtection[] =
1045     "safebrowsing-disable-download-protection";
1046 
1047 // Disables safebrowsing feature that checks for blacklisted extensions.
1048 const char kSbDisableExtensionBlacklist[] =
1049     "safebrowsing-disable-extension-blacklist";
1050 
1051 // Disables safebrowsing feature that provides a side-effect free whitelist.
1052 const char kSbDisableSideEffectFreeWhitelist[] =
1053     "safebrowsing-disable-side-effect-free-whitelist";
1054 
1055 // Causes the process to run as a service process.
1056 const char kServiceProcess[]                = "service";
1057 
1058 // Sets a token in the token service, for testing.
1059 const char kSetToken[]                      = "set-token";
1060 
1061 // If true the app list will be shown.
1062 const char kShowAppList[]                   = "show-app-list";
1063 
1064 // See kHideIcons.
1065 const char kShowIcons[]                     = "show-icons";
1066 
1067 // Marks a renderer as the signin process.
1068 const char kSigninProcess[]                 = "signin-process";
1069 
1070 // Does not show an infobar when an extension attaches to a page using
1071 // chrome.debugger page. Required to attach to extension background pages.
1072 const char kSilentDebuggerExtensionAPI[]    = "silent-debugger-extension-api";
1073 
1074 // Causes Chrome to launch without opening any windows by default. Useful if
1075 // one wishes to use Chrome as an ash server.
1076 const char kSilentLaunch[]                  = "silent-launch";
1077 
1078 // Simulates an update being available.
1079 const char kSimulateUpgrade[]               = "simulate-upgrade";
1080 
1081 // Simulates a critical update being available.
1082 const char kSimulateCriticalUpdate[]        = "simulate-critical-update";
1083 
1084 // Simulates that current version is outdated.
1085 const char kSimulateOutdated[]               = "simulate-outdated";
1086 
1087 // Simulates that current version is outdated and auto-update is off.
1088 const char kSimulateOutdatedNoAU[]           = "simulate-outdated-no-au";
1089 
1090 // Speculative resource prefetching.
1091 const char kSpeculativeResourcePrefetching[] =
1092     "speculative-resource-prefetching";
1093 
1094 // Speculative resource prefetching is disabled.
1095 const char kSpeculativeResourcePrefetchingDisabled[] = "disabled";
1096 
1097 // Speculative resource prefetching will only learn about resources that need to
1098 // be prefetched but will not prefetch them.
1099 const char kSpeculativeResourcePrefetchingLearning[] = "learning";
1100 
1101 // Speculative resource prefetching is enabled.
1102 const char kSpeculativeResourcePrefetchingEnabled[] = "enabled";
1103 
1104 // Specifies the URL where spelling service feedback data will be sent instead
1105 // of the default URL. This switch is for temporary testing only.
1106 // TODO(rouslan): Remove this flag when feedback testing is complete. Revisit by
1107 // August 2013.
1108 const char kSpellingServiceFeedbackUrl[] = "spelling-service-feedback-url";
1109 
1110 // Specifies the number of seconds between sending batches of feedback to
1111 // spelling service. The default is 30 minutes. The minimum is 5 seconds. This
1112 // switch is for temporary testing only.
1113 // TODO(rouslan): Remove this flag when feedback testing is complete. Revisit by
1114 // August 2013.
1115 const char kSpellingServiceFeedbackIntervalSeconds[] =
1116     "spelling-service-feedback-interval-seconds";
1117 
1118 // Specifies the maximum SSL/TLS version ("ssl3", "tls1", "tls1.1", or
1119 // "tls1.2").
1120 const char kSSLVersionMax[]                 = "ssl-version-max";
1121 
1122 // Specifies the minimum SSL/TLS version ("ssl3", "tls1", "tls1.1", or
1123 // "tls1.2").
1124 const char kSSLVersionMin[]                 = "ssl-version-min";
1125 
1126 // Specifies the minimum SSL/TLS version ("ssl3", "tls1", "tls1.1", or
1127 // "tls1.2") that TLS fallback will accept.
1128 const char kSSLVersionFallbackMin[]         = "ssl-version-fallback-min";
1129 
1130 // Starts the browser maximized, regardless of any previous settings.
1131 const char kStartMaximized[]                = "start-maximized";
1132 
1133 // Sets the supervised user ID for any loaded or newly created profile to the
1134 // given value. Pass an empty string to mark the profile as non-supervised.
1135 // Used for testing.
1136 const char kSupervisedUserId[]              = "managed-user-id";
1137 
1138 // Used to authenticate requests to the Sync service for supervised users.
1139 // Setting this switch also causes Sync to be set up for a supervised user.
1140 const char kSupervisedUserSyncToken[]       = "managed-user-sync-token";
1141 
1142 // This flag causes sync to retry very quickly (see polling_constants.h) the
1143 // when it encounters an error, as the first step towards exponential backoff.
1144 const char kSyncShortInitialRetryOverride[] =
1145     "sync-short-initial-retry-override";
1146 
1147 // Overrides the default server used for profile sync.
1148 const char kSyncServiceURL[]                = "sync-url";
1149 
1150 // Enables deferring sync backend initialization until user initiated changes
1151 // occur.
1152 const char kSyncDisableDeferredStartup[]     = "sync-disable-deferred-startup";
1153 
1154 // Allows overriding the deferred init fallback timeout.
1155 const char kSyncDeferredStartupTimeoutSeconds[] =
1156     "sync-deferred-startup-timeout-seconds";
1157 
1158 // Enables feature to avoid unnecessary GetUpdate requests.
1159 const char kSyncEnableGetUpdateAvoidance[]   =
1160     "sync-enable-get-update-avoidance";
1161 
1162 // Disable data backup when user's not signed in.
1163 const char kSyncDisableBackup[] = "disable-sync-backup";
1164 
1165 // Disable sync rollback.
1166 const char kSyncDisableRollback[] = "disable-sync-rollback";
1167 
1168 // Passes the name of the current running automated test to Chrome.
1169 const char kTestName[]                      = "test-name";
1170 
1171 // Disables same-origin check on HTTP resources pushed via a SPDY proxy.
1172 // The value is the host:port of the trusted proxy.
1173 const char kTrustedSpdyProxy[]              = "trusted-spdy-proxy";
1174 
1175 // Experimental. Shows a dialog asking the user to try chrome. This flag is to
1176 // be used only by the upgrade process.
1177 const char kTryChromeAgain[]                = "try-chrome-again";
1178 
1179 // Runs un-installation steps that were done by chrome first-run.
1180 const char kUninstall[]                     = "uninstall";
1181 
1182 // Overrides per-origin quota settings to unlimited storage for any
1183 // apps/origins.  This should be used only for testing purpose.
1184 const char kUnlimitedStorage[]              = "unlimited-storage";
1185 
1186 // Uses Spdy for the transport protocol instead of HTTP. This is a temporary
1187 // testing flag.
1188 const char kUseSpdy[]                       = "use-spdy";
1189 
1190 // A string used to override the default user agent with a custom one.
1191 const char kUserAgent[]                     = "user-agent";
1192 
1193 // Specifies the user data directory, which is where the browser will look for
1194 // all of its state.
1195 const char kUserDataDir[]                   = "user-data-dir";
1196 
1197 // Examines a .crx for validity and prints the result.
1198 const char kValidateCrx[]                   = "validate-crx";
1199 
1200 // Uses experimental simple cache backend if possible.
1201 const char kUseSimpleCacheBackend[]         = "use-simple-cache-backend";
1202 
1203 // Specifies a custom URL for the server which reports variation data to the
1204 // client. Specifying this switch enables the Variations service on
1205 // unofficial builds. See variations_service.cc.
1206 const char kVariationsServerURL[]           = "variations-server-url";
1207 
1208 // Prints version information and quits.
1209 const char kVersion[]                       = "version";
1210 
1211 // Specify the initial window position: --window-position=x,y
1212 const char kWindowPosition[]                = "window-position";
1213 
1214 // Specify the initial window size: --window-size=w,h
1215 const char kWindowSize[]                    = "window-size";
1216 
1217 // Uses WinHTTP to fetch and evaluate PAC scripts. Otherwise the default is to
1218 // use Chromium's network stack to fetch, and V8 to evaluate.
1219 const char kWinHttpProxyResolver[]          = "winhttp-proxy-resolver";
1220 
1221 #if defined(ENABLE_PLUGIN_INSTALLATION)
1222 // Specifies a custom URL for fetching plug-ins metadata. Used for testing.
1223 const char kPluginsMetadataServerURL[]      = "plugins-metadata-server-url";
1224 #endif
1225 
1226 #if defined(OS_ANDROID)
1227 // Disables support for playing videos on Chromecast devices.
1228 const char kDisableCast[]                    = "disable-cast";
1229 
1230 // Disables Contextual Search.
1231 const char kDisableContextualSearch[]        = "disable-contextual-search";
1232 
1233 // Disables zero suggest experiment on Dev channel.
1234 const char kDisableZeroSuggest[] = "disable-zero-suggest";
1235 
1236 // Enable the accessibility tab switcher.
1237 const char kEnableAccessibilityTabSwitcher[] =
1238     "enable-accessibility-tab-switcher";
1239 
1240 // Enables app install alerts.
1241 const char kEnableAppInstallAlerts[]        = "enable-app-install-alerts";
1242 
1243 // Enables Contextual Search.
1244 const char kEnableContextualSearch[]        = "enable-contextual-search";
1245 
1246 // Enables zero suggest functionality on Dev channel, showing contextual
1247 // suggestions (EtherSuggest) for http pages and google.com search queries.
1248 const char kEnableZeroSuggestEtherSerp[] =
1249     "enable-zero-suggest-ether-serp";
1250 
1251 // Enables zero suggest functionality on Dev channel, showing contextual
1252 // suggestions (EtherSuggest) for http pages.
1253 const char kEnableZeroSuggestEtherNoSerp[] =
1254     "enable-zero-suggest-ether-noserp";
1255 
1256 // Enables zero suggest functionality on Dev channel, showing most visited
1257 // sites as default suggestions.
1258 const char kEnableZeroSuggestMostVisited[] =
1259     "enable-zero-suggest-most-visited";
1260 
1261 // Enables zero suggest functionality on Dev channel, showing recently typed
1262 // queries as default suggestions.
1263 const char kEnableZeroSuggestPersonalized[] =
1264     "enable-zero-suggest-personalized";
1265 
1266 // Enables instant search clicks feature.
1267 const char kEnableInstantSearchClicks[] = "enable-instant-search-clicks";
1268 
1269 #endif
1270 
1271 #if defined(USE_ASH)
1272 const char kOpenAsh[]                       = "open-ash";
1273 #endif
1274 
1275 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_CHROMEOS)
1276 // Specifies which password store to use (detect, default, gnome, kwallet).
1277 const char kPasswordStore[]                 = "password-store";
1278 #endif
1279 
1280 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1281 // Triggers migration of user data directory to another directory
1282 // specified as a parameter. The migration is done under singleton lock,
1283 // and sanity checks are made to avoid corrupting the profile.
1284 // The browser exits after migration is complete.
1285 const char kMigrateDataDirForSxS[]          = "migrate-data-dir-for-sxs";
1286 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1287 
1288 #if defined(OS_MACOSX)
1289 // Prevents Chrome from quitting when Chrome Apps are open.
1290 const char kAppsKeepChromeAliveInTests[]    = "apps-keep-chrome-alive-in-tests";
1291 
1292 // Forcibly disables Lion-style on newer OSes, to allow developers to test the
1293 // older, SnowLeopard-style fullscreen.
1294 const char kDisableSystemFullscreenForTesting[] =
1295     "disable-system-fullscreen-for-testing";
1296 
1297 // Makes the browser window's contentView take up the full size of the
1298 // window in OSX Yosemite.
1299 const char kEnableFullSizeContentView[]     = "enable-full-size-content-view";
1300 
1301 // A process type (switches::kProcessType) that relaunches the browser. See
1302 // chrome/browser/mac/relauncher.h.
1303 const char kRelauncherProcess[]             = "relauncher";
1304 
1305 #endif
1306 
1307 // Use bubbles for content permissions requests instead of infobars.
1308 const char kEnablePermissionsBubbles[]      = "enable-permissions-bubbles";
1309 
1310 #if defined(OS_WIN)
1311 // Fallback to XPS. By default connector uses CDD.
1312 const char kEnableCloudPrintXps[]           = "enable-cloud-print-xps";
1313 
1314 // Force-enables the profile shortcut manager. This is needed for tests since
1315 // they use a custom-user-data-dir which disables this.
1316 const char kEnableProfileShortcutManager[]  = "enable-profile-shortcut-manager";
1317 
1318 // For the DelegateExecute verb handler to launch Chrome in metro mode on
1319 // Windows 8 and higher.  Used when relaunching metro Chrome.
1320 const char kForceImmersive[]                = "force-immersive";
1321 
1322 // For the DelegateExecute verb handler to launch Chrome in desktop mode on
1323 // Windows 8 and higher.  Used when relaunching metro Chrome.
1324 const char kForceDesktop[]                  = "force-desktop";
1325 
1326 // Relaunches metro Chrome on Windows 8 and higher using a given shortcut.
1327 const char kRelaunchShortcut[]              = "relaunch-shortcut";
1328 
1329 // Requests that Chrome launch the Metro viewer process via the given appid
1330 // (which is assumed to be registered as default browser) and synchronously
1331 // connect to it.
1332 const char kViewerLaunchViaAppId[]          = "viewer-launch-via-appid";
1333 
1334 // Waits for the given handle to be signaled before relaunching metro Chrome on
1335 // Windows 8 and higher.
1336 const char kWaitForMutex[]                  = "wait-for-mutex";
1337 
1338 // Indicates that chrome was launched to service a search request in Windows 8.
1339 const char kWindows8Search[]                = "windows8-search";
1340 #endif
1341 
1342 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
1343 // Enables support to debug printing subsystem.
1344 const char kDebugPrint[] = "debug-print";
1345 #endif
1346 
1347 #ifndef NDEBUG
1348 // Enables overriding the path of file manager extension.
1349 const char kFileManagerExtensionPath[]      = "filemgr-ext-path";
1350 #endif
1351 
AboutInSettingsEnabled()1352 bool AboutInSettingsEnabled() {
1353   return SettingsWindowEnabled() &&
1354       !CommandLine::ForCurrentProcess()->HasSwitch(
1355           ::switches::kDisableAboutInSettings);
1356 }
1357 
SettingsWindowEnabled()1358 bool SettingsWindowEnabled() {
1359 #if defined(OS_CHROMEOS)
1360   return !CommandLine::ForCurrentProcess()->HasSwitch(
1361       ::switches::kDisableSettingsWindow);
1362 #else
1363   return CommandLine::ForCurrentProcess()->HasSwitch(
1364       ::switches::kEnableSettingsWindow);
1365 #endif
1366 }
1367 
1368 // -----------------------------------------------------------------------------
1369 // DO NOT ADD YOUR CRAP TO THE BOTTOM OF THIS FILE.
1370 //
1371 // You were going to just dump your switches here, weren't you? Instead, please
1372 // put them in alphabetical order above, or in order inside the appropriate
1373 // ifdef at the bottom. The order should match the header.
1374 // -----------------------------------------------------------------------------
1375 
1376 }  // namespace switches
1377