content_switches.cc revision 7d4cd473f85ac64c3747c96c277f9e506a0d2246
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 "content/public/common/content_switches.h" 6 7namespace switches { 8 9// By default, file:// URIs cannot read other file:// URIs. This is an 10// override for developers who need the old behavior for testing. 11const char kAllowFileAccessFromFiles[] = "allow-file-access-from-files"; 12 13// Allows debugging of sandboxed processes (see zygote_main_linux.cc). 14const char kAllowSandboxDebugging[] = "allow-sandbox-debugging"; 15 16// Allow compositing on chrome:// pages. 17const char kAllowWebUICompositing[] = "allow-webui-compositing"; 18 19// Enumerates and prints a child process' most dangerous handles when it 20// is terminated. 21const char kAuditHandles[] = "enable-handle-auditing"; 22 23// The same as kAuditHandles except all handles are enumerated. 24const char kAuditAllHandles[] = "enable-handle-auditing-all"; 25 26// Causes the browser process to throw an assertion on startup. 27const char kBrowserAssertTest[] = "assert-test"; 28 29// Causes the browser process to crash on startup. 30const char kBrowserCrashTest[] = "crash-test"; 31 32// Path to the exe to run for the renderer and plugin subprocesses. 33const char kBrowserSubprocessPath[] = "browser-subprocess-path"; 34 35// Disables client-visible 3D APIs, in particular WebGL and Pepper 3D. 36// This is controlled by policy and is kept separate from the other 37// enable/disable switches to avoid accidentally regressing the policy 38// support for controlling access to these APIs. 39const char kDisable3DAPIs[] = "disable-3d-apis"; 40 41// Disable gpu-accelerated 2d canvas. 42const char kDisableAccelerated2dCanvas[] = "disable-accelerated-2d-canvas"; 43 44// Disable antialiasing on 2d canvas. 45const char kDisable2dCanvasAntialiasing[] = "disable-canvas-aa"; 46 47// Enable experimental canvas features, e.g. canvas 2D context attributes 48const char kEnableExperimentalCanvasFeatures[] 49 = "enable-experimental-canvas-features"; 50 51// Disables accelerated compositing. 52const char kDisableAcceleratedCompositing[] = "disable-accelerated-compositing"; 53 54// Disables the hardware acceleration of 3D CSS and animation. 55const char kDisableAcceleratedLayers[] = "disable-accelerated-layers"; 56 57// Disables the hardware acceleration of plugins. 58const char kDisableAcceleratedPlugins[] = "disable-accelerated-plugins"; 59 60// Disables GPU accelerated video display. 61const char kDisableAcceleratedVideo[] = "disable-accelerated-video"; 62 63// Disables the alternate window station for the renderer. 64const char kDisableAltWinstation[] = "disable-winsta"; 65 66// Disable the ApplicationCache. 67const char kDisableApplicationCache[] = "disable-application-cache"; 68// 69// TODO(scherkus): remove --disable-audio when we have a proper fallback 70// mechanism. 71const char kDisableAudio[] = "disable-audio"; 72 73// Disable limits on the number of backing stores. Can prevent blinking for 74// users with many windows/tabs and lots of memory. 75const char kDisableBackingStoreLimit[] = "disable-backing-store-limit"; 76 77// Disables HTML5 DB support. 78const char kDisableDatabases[] = "disable-databases"; 79 80// Disables desktop notifications (default enabled on windows). 81const char kDisableDesktopNotifications[] = "disable-desktop-notifications"; 82 83// Disables device orientation events. 84const char kDisableDeviceOrientation[] = "disable-device-orientation"; 85 86#if defined(OS_ANDROID) 87// WebGL is disabled by default on Android. 88const char kEnableExperimentalWebGL[] = "enable-webgl"; 89#else 90// Disable experimental WebGL support. 91const char kDisableExperimentalWebGL[] = "disable-webgl"; 92#endif 93 94// Blacklist the GPU for accelerated compositing. 95const char kBlacklistAcceleratedCompositing[] = 96 "blacklist-accelerated-compositing"; 97 98// Blacklist the GPU for WebGL. 99const char kBlacklistWebGL[] = "blacklist-webgl"; 100 101// Disable FileSystem API. 102const char kDisableFileSystem[] = "disable-file-system"; 103 104// Disable 3D inside of flapper. 105const char kDisableFlash3d[] = "disable-flash-3d"; 106 107// Disable Stage3D inside of flapper. 108const char kDisableFlashStage3d[] = "disable-flash-stage3d"; 109 110// Suppresses support for the Geolocation javascript API. 111const char kDisableGeolocation[] = "disable-geolocation"; 112 113// Disable GL multisampling. 114const char kDisableGLMultisampling[] = "disable-gl-multisampling"; 115 116// Do not launch the GPU process shortly after browser process launch. Instead 117// launch it when it is first needed. 118const char kDisableGpuProcessPrelaunch[] = "disable-gpu-process-prelaunch"; 119 120// Disable the GPU process sandbox. 121const char kDisableGpuSandbox[] = "disable-gpu-sandbox"; 122 123// Reduces the GPU process sandbox to be less strict. 124const char kReduceGpuSandbox[] = "reduce-gpu-sandbox"; 125 126// Suppresses hang monitor dialogs in renderer processes. This may allow slow 127// unload handlers on a page to prevent the tab from closing, but the Task 128// Manager can be used to terminate the offending process in this case. 129const char kDisableHangMonitor[] = "disable-hang-monitor"; 130 131// Disables HTML-based desktop notifications. 132const char kDisableHTMLNotifications[] = "disable-html-notifications"; 133 134// Disable the RenderThread's HistogramCustomizer. 135const char kDisableHistogramCustomizer[] = "disable-histogram-customizer"; 136 137// Disable the use of an ImageTransportSurface. This means the GPU process 138// will present the rendered page rather than the browser process. 139const char kDisableImageTransportSurface[] = "disable-image-transport-surface"; 140 141// Use hardware gpu, if available, for tests. 142const char kUseGpuInTests[] = "use-gpu-in-tests"; 143 144// Disables GPU hardware acceleration. If software renderer is not in place, 145// then the GPU process won't launch. 146const char kDisableGpu[] = "disable-gpu"; 147 148// Disable the thread that crashes the GPU process if it stops responding to 149// messages. 150const char kDisableGpuWatchdog[] = "disable-gpu-watchdog"; 151 152// Prevent Java from running. 153const char kDisableJava[] = "disable-java"; 154 155// Don't execute JavaScript (browser JS like the new tab page still runs). 156const char kDisableJavaScript[] = "disable-javascript"; 157 158// Disable JavaScript I18N API. 159const char kDisableJavaScriptI18NAPI[] = "disable-javascript-i18n-api"; 160 161// Disable LocalStorage. 162const char kDisableLocalStorage[] = "disable-local-storage"; 163 164// Force logging to be disabled. Logging is enabled by default in debug 165// builds. 166const char kDisableLogging[] = "disable-logging"; 167 168// Prevent plugins from running. 169const char kDisablePlugins[] = "disable-plugins"; 170 171// Disables remote web font support. SVG font should always work whether this 172// option is specified or not. 173const char kDisableRemoteFonts[] = "disable-remote-fonts"; 174 175// Turns off the accessibility in the renderer. 176const char kDisableRendererAccessibility[] = "disable-renderer-accessibility"; 177 178// Disable False Start in SSL and TLS connections. 179const char kDisableSSLFalseStart[] = "disable-ssl-false-start"; 180 181// Disable smooth scrolling for testing. 182const char kDisableSmoothScrolling[] = "disable-smooth-scrolling"; 183 184// Disable the seccomp filter sandbox (seccomp-bpf) (Linux only). 185const char kDisableSeccompFilterSandbox[] = "disable-seccomp-filter-sandbox"; 186 187// Disable session storage. 188const char kDisableSessionStorage[] = "disable-session-storage"; 189 190// Disable the setuid sandbox (Linux only). 191const char kDisableSetuidSandbox[] = "disable-setuid-sandbox"; 192 193// Enable shared workers. Functionality not yet complete. 194const char kDisableSharedWorkers[] = "disable-shared-workers"; 195 196// Disables site-specific tailoring to compatibility issues in WebKit. 197const char kDisableSiteSpecificQuirks[] = "disable-site-specific-quirks"; 198 199// Disables speech input. 200const char kDisableSpeechInput[] = "disable-speech-input"; 201 202// Specifies the request key for the continuous speech recognition webservice. 203const char kSpeechRecognitionWebserviceKey[] = "speech-service-key"; 204 205// Enables the synthesis part of the Web Speech API. 206const char kEnableSpeechSynthesis[] = "enable-speech-synthesis"; 207 208#if defined(OS_ANDROID) 209// WebRTC is enabled by default on Android. 210const char kDisableWebRTC[] = "disable-webrtc"; 211 212// Enable the recognition part of the Web Speech API. 213const char kEnableSpeechRecognition[] = "enable-speech-recognition"; 214 215#endif 216 217// Disable web audio API. 218const char kDisableWebAudio[] = "disable-webaudio"; 219 220#if defined(ENABLE_WEBRTC) 221// Enables WebRTC AEC recordings. 222const char kEnableWebRtcAecRecordings[] = "enable-webrtc-aec-recordings"; 223 224// Enable WebRTC DataChannels SCTP wire protocol support. 225const char kEnableSCTPDataChannels[] = "enable-sctp-data-channels"; 226#endif 227 228// Enable WebRTC to open TCP server sockets. 229const char kEnableWebRtcTcpServerSocket[] = "enable-webrtc-tcp-server-socket"; 230 231// Enables Web MIDI API. 232const char kEnableWebMIDI[] = "enable-web-midi"; 233 234// Don't enforce the same-origin policy. (Used by people testing their sites.) 235const char kDisableWebSecurity[] = "disable-web-security"; 236 237// Enable an experimental WebSocket implementation. 238const char kEnableExperimentalWebSocket[] = "enable-experimental-websocket"; 239 240// Disables WebKit's XSSAuditor. The XSSAuditor mitigates reflective XSS. 241const char kDisableXSSAuditor[] = "disable-xss-auditor"; 242 243// Specifies if the |DOMAutomationController| needs to be bound in the 244// renderer. This binding happens on per-frame basis and hence can potentially 245// be a performance bottleneck. One should only enable it when automating dom 246// based tests. 247const char kDomAutomationController[] = "dom-automation"; 248 249// Specifies if the |StatsCollectionController| needs to be bound in the 250// renderer. This binding happens on per-frame basis and hence can potentially 251// be a performance bottleneck. One should only enable it when running a test 252// that needs to access the provided statistics. 253const char kStatsCollectionController[] = 254 "enable-stats-collection-bindings"; 255 256// Enable gpu-accelerated SVG/W3C filters. 257const char kEnableAcceleratedFilters[] = "enable-accelerated-filters"; 258 259// Turns on extremely verbose logging of accessibility events. 260const char kEnableAccessibilityLogging[] = "enable-accessibility-logging"; 261 262// Enable notifications of audible/silent audio output from a render view. 263// 264// TODO(miu): Remove --enable-audible-notifications once the feature goes 265// live. http://crbug.com/178934 266const char kEnableAudibleNotifications[] = "enable-audible-notifications"; 267 268// Enables browser plugin compositing experiment. 269const char kDisableBrowserPluginCompositing[] = 270 "disable-browser-plugin-compositing"; 271 272// Enables browser plugin for all types of pages. 273const char kEnableBrowserPluginForAllViewTypes[] = 274 "enable-browser-plugin-for-all-view-types"; 275 276// Enables Drag and Drop into and out of Browser Plugin. 277// kEnableBrowserPluginGuestViews must also be set at this time. 278const char kEnableBrowserPluginDragDrop[] = "enable-browser-plugin-drag-drop"; 279 280// Enable/Disable the creation of compositing layers for fixed position 281// elements. Three options are needed to support four possible scenarios: 282// 1. Default (disabled) 283// 2. Enabled always (to allow dogfooding) 284// 3. Disabled always (to give safety fallback for users) 285// 4. Enabled only if we detect a highDPI display 286// 287// Option #4 may soon be the default, because the feature is needed soon for 288// high DPI, but cannot be used (yet) for low DPI. Options #2 and #3 will 289// override Option #4. 290const char kEnableCompositingForFixedPosition[] = 291 "enable-fixed-position-compositing"; 292const char kDisableCompositingForFixedPosition[] = 293 "disable-fixed-position-compositing"; 294const char kEnableHighDpiCompositingForFixedPosition[] = 295 "enable-high-dpi-fixed-position-compositing"; 296 297// Enable/Disable the creation of compositing layers for RenderLayers with a 298// transition on a property that supports accelerated animation (that is, 299// opacity, -webkit-transform, and -webkit-filter), even when no animation is 300// running. These options allow for three possible scenarios: 301// 1. Default (enabled only if we dectect a highDPI display) 302// 2. Enabled always. 303// 3. Disabled always. 304const char kEnableCompositingForTransition[] = 305 "enable-transition-compositing"; 306const char kDisableCompositingForTransition[] = 307 "disable-transition-compositing"; 308 309// Enables CSS3 custom filters 310const char kEnableCssShaders[] = "enable-css-shaders"; 311 312// Enables delegated renderer. 313const char kEnableDelegatedRenderer[] = "enable-delegated-renderer"; 314 315// Enables device motion events. 316const char kEnableDeviceMotion[] = "enable-device-motion"; 317 318// Enables restarting interrupted downloads. 319const char kEnableDownloadResumption[] = "enable-download-resumption"; 320 321// Enables WebKit features that are in development. 322const char kEnableExperimentalWebKitFeatures[] = 323 "enable-experimental-webkit-features"; 324 325// Enables the CSS multicol implementation that uses the regions implementation. 326const char kEnableRegionBasedColumns[] = 327 "enable-region-based-columns"; 328 329// Disables the threaded HTML parser in WebKit 330const char kDisableThreadedHTMLParser[] = "disable-threaded-html-parser"; 331 332// By default, a page is laid out to fill the entire width of the window. 333// This flag fixes the layout of the page to a default of 980 CSS pixels, 334// or to a specified width and height using --enable-fixed-layout=w,h 335const char kEnableFixedLayout[] = "enable-fixed-layout"; 336 337// Disable the JavaScript Full Screen API. 338const char kDisableFullScreen[] = "disable-fullscreen"; 339 340// Enable Text Service Framework(TSF) for text inputting instead of IMM32. This 341// flag is ignored on Metro environment. 342const char kEnableTextServicesFramework[] = "enable-text-services-framework"; 343 344// Enable Gesture Tap Highlight 345const char kEnableGestureTapHighlight[] = "enable-gesture-tap-highlight"; 346const char kDisableGestureTapHighlight[] = "disable-gesture-tap-highlight"; 347 348// Enables the GPU benchmarking extension 349const char kEnableGpuBenchmarking[] = "enable-gpu-benchmarking"; 350 351// Enables TRACE for GL calls in the renderer. 352const char kEnableGpuClientTracing[] = "enable-gpu-client-tracing"; 353 354// Enables the memory benchmarking extension 355const char kEnableMemoryBenchmarking[] = "enable-memory-benchmarking"; 356 357// Enables the Skia benchmarking extension 358const char kEnableSkiaBenchmarking[] = "enable-skia-benchmarking"; 359 360// Force logging to be enabled. Logging is disabled by default in release 361// builds. 362const char kEnableLogging[] = "enable-logging"; 363 364// Enable for Android (see http://crbug.com/233420) or disable for desktop the 365// prefixed Media Source API (i.e., the WebKitMediaSource object). 366#if defined(ANDROID) && !defined(GOOGLE_TV) 367const char kEnableWebKitMediaSource[] = "enable-webkit-media-source"; 368#else 369const char kDisableWebKitMediaSource[] = "disable-webkit-media-source"; 370#endif 371 372// Enables support for Encrypted Media Extensions (e.g. MediaKeys). 373const char kEnableEncryptedMedia[] = "enable-encrypted-media"; 374 375// Disables prefixed Encrypted Media API (e.g. webkitGenerateKeyRequest()). 376const char kDisableLegacyEncryptedMedia[] = "disable-legacy-encrypted-media"; 377 378// Use fake device for MediaStream to replace actual camera and microphone. 379const char kUseFakeDeviceForMediaStream[] = "use-fake-device-for-media-stream"; 380 381// On Windows, converts the page to the currently-installed monitor profile. 382// This does NOT enable color management for images. The source is still 383// assumed to be sRGB. 384const char kEnableMonitorProfile[] = "enable-monitor-profile"; 385 386// Enables compositor-accelerated touch-screen pinch gestures. 387const char kEnablePinch[] = "enable-pinch"; 388const char kDisablePinch[] = "disable-pinch"; 389 390// Enables use of cache if offline, even if it's stale 391const char kEnableOfflineCacheAccess[] = "enable-offline-cache-access"; 392 393// Enable caching of pre-parsed JS script data. See http://crbug.com/32407. 394const char kEnablePreparsedJsCaching[] = "enable-preparsed-js-caching"; 395 396// Enable privileged WebGL extensions; without this switch such extensions are 397// available only to Chrome extensions. 398const char kEnablePrivilegedWebGLExtensions[] = 399 "enable-privileged-webgl-extensions"; 400 401// Aggressively free GPU command buffers belonging to hidden tabs. 402const char kEnablePruneGpuCommandBuffers[] = 403 "enable-prune-gpu-command-buffers"; 404 405// Enable screen capturing support for MediaStream API. 406const char kEnableUserMediaScreenCapturing[] = 407 "enable-usermedia-screen-capturing"; 408 409// Enables TLS cached info extension. 410const char kEnableSSLCachedInfo[] = "enable-ssl-cached-info"; 411 412// Cause the OS X sandbox write to syslog every time an access to a resource 413// is denied by the sandbox. 414const char kEnableSandboxLogging[] = "enable-sandbox-logging"; 415 416// Enable spatial navigation 417const char kEnableSpatialNavigation[] = "enable-spatial-navigation"; 418 419// On platforms that support it, enables smooth scroll animation. 420const char kEnableSmoothScrolling[] = "enable-smooth-scrolling"; 421 422// Enables StatsTable, logging statistics to a global named shared memory table. 423const char kEnableStatsTable[] = "enable-stats-table"; 424 425// Experimentally ensures that each renderer process: 426// 1) Only handles rendering for pages from a single site, apart from iframes. 427// (Note that a page can reference content from multiple origins due to images, 428// JavaScript files, etc. Cross-site iframes are also loaded in-process.) 429// 2) Only has authority to see or use cookies for the page's top-level origin. 430// (So if a.com iframes b.com, the b.com network request will be sent without 431// cookies.) 432// This is expected to break compatibility with many pages for now. Unlike the 433// --site-per-process flag, this allows cross-site iframes, but it blocks all 434// cookies on cross-site requests. 435const char kEnableStrictSiteIsolation[] = "enable-strict-site-isolation"; 436 437// Enable multithreaded GPU compositing of web content. 438const char kEnableThreadedCompositing[] = "enable-threaded-compositing"; 439 440// Allow GL contexts to be automatically virtualized (shared between command 441// buffer clients) if they are compatible. 442const char kEnableVirtualGLContexts[] = "enable-virtual-gl-contexts"; 443 444// Disable multithreaded GPU compositing of web content. 445const char kDisableThreadedCompositing[] = "disable-threaded-compositing"; 446 447// Enable use of experimental TCP sockets API for sending data in the 448// SYN packet. 449const char kEnableTcpFastOpen[] = "enable-tcp-fastopen"; 450 451// Disables hardware acceleration of video decode, where available. 452const char kDisableAcceleratedVideoDecode[] = 453 "disable-accelerated-video-decode"; 454 455// Enables the use of the viewport meta tag, which allows 456// pages to control aspects of their own layout. This also turns on touch-screen 457// pinch gestures. 458const char kEnableViewport[] = "enable-viewport"; 459 460// Enables experimental features for the geolocation API. 461// Current features: 462// - CoreLocation support for Mac OS X 10.6 463// - Gateway location for Linux and Windows 464// - Location platform support for Windows 7 465const char kExperimentalLocationFeatures[] = "experimental-location-features"; 466 467// If accelerated compositing is supported, always enter compositing mode for 468// the base layer even when compositing is not strictly required. 469const char kForceCompositingMode[] = "force-compositing-mode"; 470 471// This flag disables force compositing mode and prevents it from being enabled 472// via field trials. 473const char kDisableForceCompositingMode[] = "disable-force-compositing-mode"; 474 475// Some field trials may be randomized in the browser, and the randomly selected 476// outcome needs to be propagated to the renderer. For instance, this is used 477// to modify histograms recorded in the renderer, or to get the renderer to 478// also set of its state (initialize, or not initialize components) to match the 479// experiment(s). The option is also useful for forcing field trials when 480// testing changes locally. The argument is a list of name and value pairs, 481// separated by slashes. See FieldTrialList::CreateTrialsFromString() in 482// field_trial.h for details. 483const char kForceFieldTrials[] = "force-fieldtrials"; 484 485// Force renderer accessibility to be on instead of enabling it on demand when 486// a screen reader is detected. The disable-renderer-accessibility switch 487// overrides this if present. 488const char kForceRendererAccessibility[] = "force-renderer-accessibility"; 489 490// Force the compositor to use its software implementation instead of GL. 491const char kEnableSoftwareCompositingGLAdapter[] = 492 "enable-software-compositing-gl-adapter"; 493 494// Passes gpu device_id from browser process to GPU process. 495const char kGpuDeviceID[] = "gpu-device-id"; 496 497// Passes gpu driver_vendor from browser process to GPU process. 498const char kGpuDriverVendor[] = "gpu-driver-vendor"; 499 500// Passes gpu driver_version from browser process to GPU process. 501const char kGpuDriverVersion[] = "gpu-driver-version"; 502 503// Extra command line options for launching the GPU process (normally used 504// for debugging). Use like renderer-cmd-prefix. 505const char kGpuLauncher[] = "gpu-launcher"; 506 507// Makes this process a GPU sub-process. 508const char kGpuProcess[] = "gpu-process"; 509 510// Causes the GPU process to display a dialog on launch. 511const char kGpuStartupDialog[] = "gpu-startup-dialog"; 512 513// Passes gpu vendor_id from browser process to GPU process. 514const char kGpuVendorID[] = "gpu-vendor-id"; 515 516// These mappings only apply to the host resolver. 517const char kHostResolverRules[] = "host-resolver-rules"; 518 519// Ignores certificate-related errors. 520const char kIgnoreCertificateErrors[] = "ignore-certificate-errors"; 521 522// Ignores GPU blacklist. 523const char kIgnoreGpuBlacklist[] = "ignore-gpu-blacklist"; 524 525// Run the GPU process as a thread in the browser process. 526const char kInProcessGPU[] = "in-process-gpu"; 527 528// Runs plugins inside the renderer process 529const char kInProcessPlugins[] = "in-process-plugins"; 530 531// Specifies the flags passed to JS engine 532const char kJavaScriptFlags[] = "js-flags"; 533 534// Load NPAPI plugins from the specified directory. 535const char kExtraPluginDir[] = "extra-plugin-dir"; 536 537// Load an NPAPI plugin from the specified path. 538const char kLoadPlugin[] = "load-plugin"; 539 540// Disable discovering third-party plug-ins. Effectively loading only 541// ones shipped with the browser plus third-party ones as specified by 542// --extra-plugin-dir and --load-plugin switches. 543const char kDisablePluginsDiscovery[] = "disable-plugins-discovery"; 544 545// Sets the minimum log level. Valid values are from 0 to 3: 546// INFO = 0, WARNING = 1, LOG_ERROR = 2, LOG_FATAL = 3. 547const char kLoggingLevel[] = "log-level"; 548 549// Make plugin processes log their sent and received messages to VLOG(1). 550const char kLogPluginMessages[] = "log-plugin-messages"; 551 552// Sample memory usage with high frequency and store the results to the 553// Renderer.Memory histogram. Used in memory tests. 554const char kMemoryMetrics[] = "memory-metrics"; 555 556// Don't send HTTP-Referer headers. 557const char kNoReferrers[] = "no-referrers"; 558 559// Disables the sandbox for all process types that are normally sandboxed. 560const char kNoSandbox[] = "no-sandbox"; 561 562// Enables the sandboxed processes to run without a job object assigned to them. 563// This flag is required to allow Chrome to run in RemoteApps or Citrix. This 564// flag can reduce the security of the sandboxed processes and allow them to do 565// certain API calls like shut down Windows or access the clipboard. Also we 566// lose the chance to kill some processes until the outer job that owns them 567// finishes. 568const char kAllowNoSandboxJob[] = "allow-no-sandbox-job"; 569 570// Specifies a command that should be used to launch the plugin process. Useful 571// for running the plugin process through purify or quantify. Ex: 572// --plugin-launcher="path\to\purify /Run=yes" 573const char kPluginLauncher[] = "plugin-launcher"; 574 575// Tells the plugin process the path of the plugin to load 576const char kPluginPath[] = "plugin-path"; 577 578// Causes the process to run as a plugin subprocess. 579const char kPluginProcess[] = "plugin"; 580 581// Causes the plugin process to display a dialog on launch. 582const char kPluginStartupDialog[] = "plugin-startup-dialog"; 583 584// Argument to the process type that indicates a PPAPI broker process type. 585const char kPpapiBrokerProcess[] = "ppapi-broker"; 586 587// Runs PPAPI (Pepper) plugins in-process. 588const char kPpapiInProcess[] = "ppapi-in-process"; 589 590// Like kPluginLauncher for PPAPI plugins. 591const char kPpapiPluginLauncher[] = "ppapi-plugin-launcher"; 592 593// Argument to the process type that indicates a PPAPI plugin process type. 594const char kPpapiPluginProcess[] = "ppapi"; 595 596// Causes the PPAPI sub process to display a dialog on launch. Be sure to use 597// --no-sandbox as well or the sandbox won't allow the dialog to display. 598const char kPpapiStartupDialog[] = "ppapi-startup-dialog"; 599 600// Runs a single process for each site (i.e., group of pages from the same 601// registered domain) the user visits. We default to using a renderer process 602// for each site instance (i.e., group of pages from the same registered 603// domain with script connections to each other). 604const char kProcessPerSite[] = "process-per-site"; 605 606// Runs each set of script-connected tabs (i.e., a BrowsingInstance) in its own 607// renderer process. We default to using a renderer process for each 608// site instance (i.e., group of pages from the same registered domain with 609// script connections to each other). 610const char kProcessPerTab[] = "process-per-tab"; 611 612// The value of this switch determines whether the process is started as a 613// renderer or plugin host. If it's empty, it's the browser. 614const char kProcessType[] = "type"; 615 616// Register Pepper plugins (see pepper_plugin_registry.cc for its format). 617const char kRegisterPepperPlugins[] = "register-pepper-plugins"; 618 619// Enables remote debug over HTTP on the specified port. 620const char kRemoteDebuggingPort[] = "remote-debugging-port"; 621 622#if defined(OS_ANDROID) 623// Enables remote debug over HTTP on the specified socket name. 624const char kRemoteDebuggingSocketName[] = "remote-debugging-socket-name"; 625#endif 626 627// Causes the renderer process to throw an assertion on launch. 628const char kRendererAssertTest[] = "renderer-assert-test"; 629 630// On POSIX only: the contents of this flag are prepended to the renderer 631// command line. Useful values might be "valgrind" or "xterm -e gdb --args". 632const char kRendererCmdPrefix[] = "renderer-cmd-prefix"; 633 634// Causes the process to run as renderer instead of as browser. 635const char kRendererProcess[] = "renderer"; 636 637// Enable the Vtune profiler support. 638const char kEnableVtune[] = "enable-vtune-support"; 639 640// Overrides the default/calculated limit to the number of renderer processes. 641// Very high values for this setting can lead to high memory/resource usage 642// or instability. 643const char kRendererProcessLimit[] = "renderer-process-limit"; 644 645// Causes the renderer process to display a dialog on launch. 646const char kRendererStartupDialog[] = "renderer-startup-dialog"; 647 648// Enables accelerated compositing for overflow scroll. Promotes eligible 649// overflow:scroll elements to layers to enable accelerated scrolling for them. 650const char kEnableAcceleratedOverflowScroll[] = 651 "enable-accelerated-overflow-scroll"; 652 653// Disables accelerated compositing for overflow scroll. 654extern const char kDisableAcceleratedOverflowScroll[] = 655 "disable-accelerated-overflow-scroll"; 656 657// Enables accelerated compositing for scrollable frames for accelerated 658// scrolling for them. Requires kForceCompositingMode. 659const char kEnableAcceleratedScrollableFrames[] = 660 "enable-accelerated-scrollable-frames"; 661 662// Enables accelerated scrolling by the compositor for frames. Requires 663// kForceCompositingMode and kEnableAcceleratedScrollableFrames. 664const char kEnableCompositedScrollingForFrames[] = 665 "enable-composited-scrolling-for-frames"; 666 667// Visibly render a border around paint rects in the web page to help debug 668// and study painting behavior. 669const char kShowPaintRects[] = "show-paint-rects"; 670 671// Map mouse input events into touch gesture events. Useful for debugging touch 672// gestures without needing a touchscreen. 673const char kSimulateTouchScreenWithMouse[] = 674 "simulate-touch-screen-with-mouse"; 675 676// Runs the renderer and plugins in the same process as the browser 677const char kSingleProcess[] = "single-process"; 678 679// Experimentally enforces a one-site-per-process security policy. 680// All cross-site navigations force process swaps, and we can restrict a 681// renderer process's access rights based on its site. For details, see: 682// http://www.chromium.org/developers/design-documents/site-isolation 683// 684// Unlike --enable-strict-site-isolation (which allows cross-site iframes), 685// this flag blocks cross-site documents even in iframes, until out-of-process 686// iframe support is available. Cross-site network requests do attach the 687// normal set of cookies, but a renderer process is only allowed to view or 688// modify cookies for its own site (via JavaScript). 689// TODO(irobert): Implement the cross-site document blocking in 690// http://crbug.com/159215. 691const char kSitePerProcess[] = "site-per-process"; 692 693// Skip gpu info collection, blacklist loading, and blacklist auto-update 694// scheduling at browser startup time. 695// Therefore, all GPU features are available, and about:gpu page shows empty 696// content. The switch is intended only for tests. 697const char kSkipGpuDataLoading[] = "skip-gpu-data-loading"; 698 699// Scaling quality for capturing tab. Should be one of "fast", "good" or "best". 700// One flag for upscaling, one for downscaling. 701// Upscale defaults to "best". 702const char kTabCaptureUpscaleQuality[] = "tab-capture-upscale-quality"; 703// Upscale defaults to "good". 704const char kTabCaptureDownscaleQuality[] = "tab-capture-downscale-quality"; 705 706// GestureTapDown events are deferred by this many miillseconds before 707// sending them to the renderer. 708const char kTapDownDeferralTimeMs[] = "tap-down-deferral-time"; 709 710// Runs the security test for the renderer sandbox. 711const char kTestSandbox[] = "test-sandbox"; 712 713// Allows for forcing socket connections to http/https to use fixed ports. 714const char kTestingFixedHttpPort[] = "testing-fixed-http-port"; 715const char kTestingFixedHttpsPort[] = "testing-fixed-https-port"; 716 717// Causes TRACE_EVENT flags to be recorded from startup. Optionally, can 718// specify the specific trace categories to include (e.g. 719// --trace-startup=base,net) otherwise, all events are recorded. Setting this 720// flag results in the first call to BeginTracing() to receive all trace events 721// since startup. In Chrome, you may find --trace-startup-file and 722// --trace-startup-duration to control the auto-saving of the trace (not 723// supported in the base-only TraceLog component). 724const char kTraceStartup[] = "trace-startup"; 725 726// If supplied, sets the file which startup tracing will be stored into, if 727// omitted the default will be used "chrometrace.log" in the current directory. 728// Has no effect unless --trace-startup is also supplied. 729// Example: --trace-startup --trace-startup-file=/tmp/trace_event.log 730// As a special case, can be set to 'none' - this disables automatically saving 731// the result to a file and the first manually recorded trace will then receive 732// all events since startup. 733const char kTraceStartupFile[] = "trace-startup-file"; 734 735// Sets the time in seconds until startup tracing ends. If omitted a default of 736// 5 seconds is used. Has no effect without --trace-startup, or if 737// --startup-trace-file=none was supplied. 738const char kTraceStartupDuration[] = "trace-startup-duration"; 739 740// Prioritizes the UI's command stream in the GPU process 741extern const char kUIPrioritizeInGpuProcess[] = 742 "ui-prioritize-in-gpu-process"; 743 744// A string used to override the default user agent with a custom one. 745const char kUserAgent[] = "user-agent"; 746 747// On POSIX only: the contents of this flag are prepended to the utility 748// process command line. Useful values might be "valgrind" or "xterm -e gdb 749// --args". 750const char kUtilityCmdPrefix[] = "utility-cmd-prefix"; 751 752// Causes the process to run as a utility subprocess. 753const char kUtilityProcess[] = "utility"; 754 755// The utility process is sandboxed, with access to one directory. This flag 756// specifies the directory that can be accessed. 757const char kUtilityProcessAllowedDir[] = "utility-allowed-dir"; 758 759// Will add kWaitForDebugger to every child processes. If a value is passed, it 760// will be used as a filter to determine if the child process should have the 761// kWaitForDebugger flag passed on or not. 762const char kWaitForDebuggerChildren[] = "wait-for-debugger-children"; 763 764// Choose which logging channels in WebCore to activate. See 765// Logging.cpp in WebKit's WebCore for a list of available channels. 766const char kWebCoreLogChannels[] = "webcore-log-channels"; 767 768// Causes the process to run as a worker subprocess. 769const char kWorkerProcess[] = "worker"; 770 771// The prefix used when starting the zygote process. (i.e. 'gdb --args') 772const char kZygoteCmdPrefix[] = "zygote-cmd-prefix"; 773 774// Causes the process to run as a renderer zygote. 775const char kZygoteProcess[] = "zygote"; 776 777// Enables moving cursor by word in visual order. 778const char kEnableVisualWordMovement[] = "enable-visual-word-movement"; 779 780// Set when Chromium should use a mobile user agent. 781const char kUseMobileUserAgent[] = "use-mobile-user-agent"; 782 783#if defined(OS_ANDROID) 784// Disable history logging for media elements. 785const char kDisableMediaHistoryLogging[] = "disable-media-history"; 786 787// Disable user gesture requirement for media playback. 788const char kDisableGestureRequirementForMediaPlayback[] = 789 "disable-gesture-requirement-for-media-playback"; 790 791// The telephony region (ISO country code) to use in phone number detection. 792const char kNetworkCountryIso[] = "network-country-iso"; 793 794// Disable overscroll edge effects like those found in Android views. 795const char kDisableOverscrollEdgeEffect[] = "disable-overscroll-edge-effect"; 796#endif 797 798#if defined(OS_CHROMEOS) 799// Disables panel fitting (used for mirror mode). 800const char kDisablePanelFitting[] = "disable-panel-fitting"; 801#endif 802 803#if defined(OS_POSIX) 804// Causes the child processes to cleanly exit via calling exit(). 805const char kChildCleanExit[] = "child-clean-exit"; 806#endif 807 808#if defined(OS_MACOSX) && !defined(OS_IOS) 809const char kDisableCarbonInterposing[] = "disable-carbon-interposing"; 810 811// Use core animation to draw the RenderWidgetHostView on Mac. 812const char kUseCoreAnimation[] = "use-core-animation"; 813#endif 814 815// Disables the use of a 3D software rasterizer. 816const char kDisableSoftwareRasterizer[] = "disable-software-rasterizer"; 817 818#if defined(USE_AURA) 819// Forces usage of the test compositor. Needed to run ui tests on bots. 820extern const char kTestCompositor[] = "test-compositor"; 821#endif 822 823// Sets the tile size used by composited layers. 824const char kDefaultTileWidth[] = "default-tile-width"; 825const char kDefaultTileHeight[] = "default-tile-height"; 826 827// Sets the width and height above which a composited layer will get tiled. 828const char kMaxUntiledLayerWidth[] = "max-untiled-layer-width"; 829const char kMaxUntiledLayerHeight[] = "max-untiled-layer-height"; 830 831// Use ExynosVideoDecodeAccelerator for video decode (instead of SECOMX) 832const char kUseExynosVda[] = "use-exynos-vda"; 833 834const char kEnableFixedPositionCreatesStackingContext[] 835 = "enable-fixed-position-creates-stacking-context"; 836const char kDisableFixedPositionCreatesStackingContext[] 837 = "disable-fixed-position-creates-stacking-context"; 838 839// Defer image decoding in WebKit until painting. 840const char kEnableDeferredImageDecoding[] = "enable-deferred-image-decoding"; 841 842// Use a begin frame signal from browser to renderer to schedule rendering. 843const char kEnableBeginFrameScheduling[] = "enable-begin-frame-scheduling"; 844 845// Synchronize delivery and response of input events to and from the renderer. 846const char kEnableBrowserInputController[] = "enable-browser-input-controller"; 847 848// Enables or disables history navigation in response to horizontal overscroll. 849// Set the value to '1' to enable the feature, and set to '0' to disable. 850// Defaults to enabled. 851const char kOverscrollHistoryNavigation[] = 852 "overscroll-history-navigation"; 853 854// Forward overscroll event data from the renderer to the browser. 855const char kEnableOverscrollNotifications[] = "enable-overscroll-notifications"; 856 857// Enables 'image/webp' accept header for image requests. 858const char kEnableWebPInAcceptHeader[] = "enable-webp-in-accept-header"; 859 860// Enables WebGL extensions not yet approved by the community. 861const char kEnableWebGLDraftExtensions[] = "enable-webgl-draft-extensions"; 862 863} // namespace switches 864