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// Contains constants for known URLs and portions thereof. 6 7#ifndef CHROME_COMMON_URL_CONSTANTS_H_ 8#define CHROME_COMMON_URL_CONSTANTS_H_ 9 10#include <string> 11#include <vector> 12 13#include "build/build_config.h" 14#include "content/public/common/url_constants.h" 15 16namespace chrome { 17 18// chrome: URLs (including schemes). Should be kept in sync with the 19// components below. 20extern const char kChromeUIAboutURL[]; 21extern const char kChromeUIAppsURL[]; 22extern const char kChromeUIAppListStartPageURL[]; 23extern const char kChromeUIBookmarksURL[]; 24extern const char kChromeUICertificateViewerURL[]; 25extern const char kChromeUICertificateViewerDialogURL[]; 26extern const char kChromeUIChromeSigninURL[]; 27extern const char kChromeUIChromeURLsURL[]; 28extern const char kChromeUICloudPrintResourcesURL[]; 29extern const char kChromeUIComponentsURL[]; 30extern const char kChromeUIConflictsURL[]; 31extern const char kChromeUIConstrainedHTMLTestURL[]; 32extern const char kChromeUICrashesURL[]; 33extern const char kChromeUICreditsURL[]; 34extern const char kChromeUIDevicesURL[]; 35extern const char kChromeUIDevToolsURL[]; 36extern const char kChromeUIDownloadsURL[]; 37extern const char kChromeUIEditSearchEngineDialogURL[]; 38extern const char kChromeUIExtensionIconURL[]; 39extern const char kChromeUIExtensionInfoURL[]; 40extern const char kChromeUIExtensionsFrameURL[]; 41extern const char kChromeUIExtensionsURL[]; 42extern const char kChromeUIFaviconURL[]; 43extern const char kChromeUIFeedbackURL[]; 44extern const char kChromeUIFlagsURL[]; 45extern const char kChromeUIFlashURL[]; 46extern const char kChromeUIGCMInternalsURL[]; 47extern const char kChromeUIHelpFrameURL[]; 48extern const char kChromeUIHistoryURL[]; 49extern const char kChromeUIHistoryFrameURL[]; 50extern const char kChromeUIIdentityInternalsURL[]; 51extern const char kChromeUIInspectURL[]; 52extern const char kChromeUIInstantURL[]; 53extern const char kChromeUIInvalidationsURL[]; 54extern const char kChromeUIIPCURL[]; 55extern const char kChromeUIManagedUserPassphrasePageURL[]; 56extern const char kChromeUIMemoryRedirectURL[]; 57extern const char kChromeUIMemoryURL[]; 58extern const char kChromeUIMetroFlowURL[]; 59extern const char kChromeUINaClURL[]; 60extern const char kChromeUINetInternalsURL[]; 61extern const char kChromeUINewProfile[]; 62extern const char kChromeUINewTabURL[]; 63extern const char kChromeUIOmniboxURL[]; 64extern const char kChromeUIPasswordManagerInternalsHost[]; 65extern const char kChromeUIPerformanceMonitorURL[]; 66extern const char kChromeUIPluginsURL[]; 67extern const char kChromeUIPolicyURL[]; 68extern const char kChromeUIProfileSigninConfirmationURL[]; 69extern const char kChromeUIUserManagerURL[]; 70extern const char kChromeUIPrintURL[]; 71extern const char kChromeUIQuitURL[]; 72extern const char kChromeUIRestartURL[]; 73extern const char kChromeUISessionFaviconURL[]; 74extern const char kChromeUISettingsURL[]; 75extern const char kChromeUISettingsFrameURL[]; 76extern const char kChromeUISuggestions[]; 77extern const char kChromeUISuggestionsInternalsURL[]; 78extern const char kChromeUISSLClientCertificateSelectorURL[]; 79extern const char kChromeUITermsURL[]; 80extern const char kChromeUIThemeURL[]; 81extern const char kChromeUIThumbnailURL[]; 82extern const char kChromeUIThumbnailListURL[]; 83extern const char kChromeUIUberURL[]; 84extern const char kChromeUIUberFrameURL[]; 85extern const char kChromeUIUserActionsURL[]; 86extern const char kChromeUIVersionURL[]; 87 88#if defined(OS_ANDROID) 89extern const char kChromeUINativeNewTabURL[]; 90extern const char kChromeUINativeBookmarksURL[]; 91extern const char kChromeUINativeRecentTabsURL[]; 92extern const char kChromeUIWelcomeURL[]; 93#endif 94 95#if defined(OS_CHROMEOS) 96extern const char kChromeUIActivationMessage[]; 97extern const char kChromeUIBluetoothPairingURL[]; 98extern const char kChromeUICertificateManagerDialogURL[]; 99extern const char kChromeUIChargerReplacementURL[]; 100extern const char kChromeUIChooseMobileNetworkURL[]; 101extern const char kChromeUIDiagnosticsURL[]; 102extern const char kChromeUIDiscardsURL[]; 103extern const char kChromeUIFirstRunURL[]; 104extern const char kChromeUIIdleLogoutDialogURL[]; 105extern const char kChromeUIImageBurnerURL[]; 106extern const char kChromeUIKeyboardOverlayURL[]; 107extern const char kChromeUILockScreenURL[]; 108extern const char kChromeUIMediaplayerURL[]; 109extern const char kChromeUIMobileSetupURL[]; 110extern const char kChromeUINfcDebugURL[]; 111extern const char kChromeUIOobeURL[]; 112extern const char kChromeUIOSCreditsURL[]; 113extern const char kChromeUIProxySettingsURL[]; 114extern const char kChromeUIScreenlockIconURL[]; 115extern const char kChromeUISetTimeURL[]; 116extern const char kChromeUISimUnlockURL[]; 117extern const char kChromeUISlideshowURL[]; 118extern const char kChromeUISlowURL[]; 119extern const char kChromeUISystemInfoURL[]; 120extern const char kChromeUITermsOemURL[]; 121extern const char kChromeUIUserImageURL[]; 122#endif 123 124#if defined(USE_AURA) 125extern const char kChromeUIGestureConfigURL[]; 126extern const char kChromeUIGestureConfigHost[]; 127extern const char kChromeUISalsaURL[]; 128extern const char kChromeUISalsaHost[]; 129#endif 130 131#if (defined(OS_LINUX) && defined(TOOLKIT_VIEWS)) || defined(USE_AURA) 132extern const char kChromeUITabModalConfirmDialogURL[]; 133#endif 134 135#if defined(ENABLE_WEBRTC) 136extern const char kChromeUIWebRtcLogsURL[]; 137#endif 138 139// chrome components of URLs. Should be kept in sync with the full URLs above. 140extern const char kChromeUIAboutHost[]; 141extern const char kChromeUIAboutPageFrameHost[]; 142extern const char kChromeUIBlankHost[]; 143extern const char kChromeUIAppLauncherPageHost[]; 144extern const char kChromeUIAppListStartPageHost[]; 145extern const char kChromeUIBookmarksHost[]; 146extern const char kChromeUICacheHost[]; 147extern const char kChromeUICertificateViewerHost[]; 148extern const char kChromeUICertificateViewerDialogHost[]; 149extern const char kChromeUIChromeSigninHost[]; 150extern const char kChromeUIChromeURLsHost[]; 151extern const char kChromeUICloudPrintResourcesHost[]; 152extern const char kChromeUICloudPrintSetupHost[]; 153extern const char kChromeUIConflictsHost[]; 154extern const char kChromeUIConstrainedHTMLTestHost[]; 155extern const char kChromeUICrashesHost[]; 156extern const char kChromeUICrashHost[]; 157extern const char kChromeUICreditsHost[]; 158extern const char kChromeUIDefaultHost[]; 159extern const char kChromeUIDevicesHost[]; 160extern const char kChromeUIDevToolsHost[]; 161extern const char kChromeUIDevToolsBundledPath[]; 162extern const char kChromeUIDevToolsRemotePath[]; 163extern const char kChromeUIDNSHost[]; 164extern const char kChromeUIDownloadsHost[]; 165extern const char kChromeUIDriveInternalsHost[]; 166extern const char kChromeUIEditSearchEngineDialogHost[]; 167extern const char kChromeUIExtensionIconHost[]; 168extern const char kChromeUIExtensionInfoHost[]; 169extern const char kChromeUIExtensionsFrameHost[]; 170extern const char kChromeUIExtensionsHost[]; 171extern const char kChromeUIFaviconHost[]; 172extern const char kChromeUIFeedbackHost[]; 173extern const char kChromeUIFlagsHost[]; 174extern const char kChromeUIFlashHost[]; 175extern const char kChromeUIGCMInternalsHost[]; 176extern const char kChromeUIHelpFrameHost[]; 177extern const char kChromeUIHelpHost[]; 178extern const char kChromeUIHangHost[]; 179extern const char kChromeUIHistoryHost[]; 180extern const char kChromeUIHistoryFrameHost[]; 181extern const char kChromeUIIdentityInternalsHost[]; 182extern const char kChromeUIInspectHost[]; 183extern const char kChromeUIInstantHost[]; 184extern const char kChromeUIInvalidationsHost[]; 185extern const char kChromeUIIPCHost[]; 186extern const char kChromeUIKillHost[]; 187extern const char kChromeUIManagedUserPassphrasePageHost[]; 188extern const char kChromeUIMemoryHost[]; 189extern const char kChromeUIMemoryInternalsHost[]; 190extern const char kChromeUIMemoryRedirectHost[]; 191extern const char kChromeUIMetroFlowHost[]; 192extern const char kChromeUINaClHost[]; 193extern const char kChromeUINetExportHost[]; 194extern const char kChromeUINetInternalsHost[]; 195extern const char kChromeUINewTabHost[]; 196extern const char kChromeUIOmniboxHost[]; 197extern const char kChromeUIPerformanceMonitorHost[]; 198extern const char kChromeUIPluginsHost[]; 199extern const char kChromeUIComponentsHost[]; 200extern const char kChromeUIPolicyHost[]; 201extern const char kChromeUIProfileSigninConfirmationHost[]; 202extern const char kChromeUIProvidedFileSystemsHost[]; 203extern const char kChromeUIUserManagerHost[]; 204extern const char kChromeUIPredictorsHost[]; 205extern const char kChromeUIPrintHost[]; 206extern const char kChromeUIProfilerHost[]; 207extern const char kChromeUIQuotaInternalsHost[]; 208extern const char kChromeUIQuitHost[]; 209extern const char kChromeUIRestartHost[]; 210extern const char kChromeUISessionFaviconHost[]; 211extern const char kChromeUISettingsHost[]; 212extern const char kChromeUISettingsFrameHost[]; 213extern const char kChromeUIShorthangHost[]; 214extern const char kChromeUISignInInternalsHost[]; 215extern const char kChromeUISuggestionsHost[]; 216extern const char kChromeUISuggestionsInternalsHost[]; 217extern const char kChromeUISSLClientCertificateSelectorHost[]; 218extern const char kChromeUIStatsHost[]; 219extern const char kChromeUISyncHost[]; 220extern const char kChromeUISyncFileSystemInternalsHost[]; 221extern const char kChromeUISyncInternalsHost[]; 222extern const char kChromeUISyncResourcesHost[]; 223extern const char kChromeUISystemInfoHost[]; 224extern const char kChromeUITaskManagerHost[]; 225extern const char kChromeUITermsHost[]; 226extern const char kChromeUIThemeHost[]; 227extern const char kChromeUIThumbnailHost[]; 228extern const char kChromeUIThumbnailHost2[]; 229extern const char kChromeUIThumbnailListHost[]; 230extern const char kChromeUITouchIconHost[]; 231extern const char kChromeUITranslateInternalsHost[]; 232extern const char kChromeUIUberFrameHost[]; 233extern const char kChromeUIUberHost[]; 234extern const char kChromeUIUserActionsHost[]; 235extern const char kChromeUIVersionHost[]; 236extern const char kChromeUIWorkersHost[]; 237 238extern const char kChromeUIScreenshotPath[]; 239extern const char kChromeUIThemePath[]; 240 241#if defined(OS_ANDROID) 242extern const char kChromeUIWelcomeHost[]; 243#endif 244 245#if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID) 246extern const char kChromeUILinuxProxyConfigHost[]; 247extern const char kChromeUISandboxHost[]; 248#endif 249 250#if defined(OS_CHROMEOS) 251extern const char kChromeUIActivationMessageHost[]; 252extern const char kChromeUIAppLaunchHost[]; 253extern const char kChromeUIBluetoothPairingHost[]; 254extern const char kChromeUICertificateManagerHost[]; 255extern const char kChromeUIChargerReplacementHost[]; 256extern const char kChromeUIChooseMobileNetworkHost[]; 257extern const char kChromeUICryptohomeHost[]; 258extern const char kChromeUIDiagnosticsHost[]; 259extern const char kChromeUIDiscardsHost[]; 260extern const char kChromeUIFirstRunHost[]; 261extern const char kChromeUIIdleLogoutDialogHost[]; 262extern const char kChromeUIImageBurnerHost[]; 263extern const char kChromeUIKeyboardOverlayHost[]; 264extern const char kChromeUILockScreenHost[]; 265extern const char kChromeUILoginContainerHost[]; 266extern const char kChromeUILoginHost[]; 267extern const char kChromeUIMediaplayerHost[]; 268extern const char kChromeUIMobileSetupHost[]; 269extern const char kChromeUINetworkHost[]; 270extern const char kChromeUINfcDebugHost[]; 271extern const char kChromeUIOobeHost[]; 272extern const char kChromeUIOSCreditsHost[]; 273extern const char kChromeUIPowerHost[]; 274extern const char kChromeUIProxySettingsHost[]; 275extern const char kChromeUIRotateHost[]; 276extern const char kChromeUIScreenlockIconHost[]; 277extern const char kChromeUISetTimeHost[]; 278extern const char kChromeUISimUnlockHost[]; 279extern const char kChromeUISlideshowHost[]; 280extern const char kChromeUISlowHost[]; 281extern const char kChromeUISlowTraceHost[]; 282extern const char kChromeUIUserImageHost[]; 283 284extern const char kChromeUIMenu[]; 285extern const char kChromeUINetworkMenu[]; 286extern const char kChromeUIWrenchMenu[]; 287 288extern const char kEULAPathFormat[]; 289extern const char kOemEulaURLPath[]; 290extern const char kOnlineEulaURLPath[]; 291#endif 292 293#if (defined(OS_LINUX) && defined(TOOLKIT_VIEWS)) || defined(USE_AURA) 294extern const char kChromeUITabModalConfirmDialogHost[]; 295#endif 296 297#if defined(ENABLE_WEBRTC) 298extern const char kChromeUIWebRtcLogsHost[]; 299#endif 300 301// Options sub-pages. 302extern const char kAutofillSubPage[]; 303extern const char kClearBrowserDataSubPage[]; 304extern const char kContentSettingsExceptionsSubPage[]; 305extern const char kContentSettingsSubPage[]; 306extern const char kCreateProfileSubPage[]; 307extern const char kExtensionsSubPage[]; 308extern const char kHandlerSettingsSubPage[]; 309extern const char kImportDataSubPage[]; 310extern const char kLanguageOptionsSubPage[]; 311extern const char kSupervisedUserSettingsSubPage[]; 312extern const char kManageProfileSubPage[]; 313extern const char kPasswordManagerSubPage[]; 314extern const char kResetProfileSettingsSubPage[]; 315extern const char kSearchEnginesSubPage[]; 316extern const char kSearchSubPage[]; 317extern const char kSearchUsersSubPage[]; 318extern const char kSyncSetupSubPage[]; 319#if defined(OS_CHROMEOS) 320extern const char kInternetOptionsSubPage[]; 321extern const char kBluetoothAddDeviceSubPage[]; 322extern const char kChangeProfilePictureSubPage[]; 323#endif 324 325// Extensions sub pages. 326extern const char kExtensionConfigureCommandsSubPage[]; 327 328// URLs used to indicate that an extension resource load request 329// was invalid. 330extern const char kExtensionInvalidRequestURL[]; 331extern const char kExtensionResourceInvalidRequestURL[]; 332 333extern const char kSyncGoogleDashboardURL[]; 334 335// "Learn more" URL for the auto password generation. 336extern const char kAutoPasswordGenerationLearnMoreURL[]; 337 338extern const char kPasswordManagerLearnMoreURL[]; 339 340// "Learn more" URL for the Settings API, NTP bubble and other settings bubbles 341// showing which extension is controlling them. 342extern const char kExtensionControlledSettingLearnMoreURL[]; 343 344// General help links for Chrome, opened using various actions. 345extern const char kChromeHelpViaKeyboardURL[]; 346extern const char kChromeHelpViaMenuURL[]; 347extern const char kChromeHelpViaWebUIURL[]; 348 349#if defined(OS_CHROMEOS) 350// Accessibility help link for Chrome. 351extern const char kChromeAccessibilityHelpURL[]; 352// Accessibility settings link for Chrome. 353extern const char kChromeAccessibilitySettingsURL[]; 354#endif 355 356#if defined (ENABLE_ONE_CLICK_SIGNIN) 357// "Learn more" URL for the one click signin infobar. 358extern const char kChromeSyncLearnMoreURL[]; 359 360// "Learn more" URL for the "Sign in with a different account" confirmation 361// dialog. 362extern const char kChromeSyncMergeTroubleshootingURL[]; 363#endif 364 365// "Learn more" URL for the enterprise sign-in confirmation dialog. 366extern const char kChromeEnterpriseSignInLearnMoreURL[]; 367 368// "Learn more" URL for resetting profile preferences. 369extern const char kResetProfileSettingsLearnMoreURL[]; 370 371// "Learn more" URL for when profile settings are automatically reset. 372extern const char kAutomaticSettingsResetLearnMoreURL[]; 373 374// Management URL for the supervised users. 375extern const char kSupervisedUserManagementURL[]; 376 377// Management URL for the supervised users - version without scheme, used 378// for display. 379extern const char kSupervisedUserManagementDisplayURL[]; 380 381// Help URL for the settings page's search feature. 382extern const char kSettingsSearchHelpURL[]; 383 384// Help URL for the Omnibox setting. 385extern const char kOmniboxLearnMoreURL[]; 386 387// "What do these mean?" URL for the Page Info bubble. 388extern const char kPageInfoHelpCenterURL[]; 389 390// "Learn more" URL for "Aw snap" page. 391extern const char kCrashReasonURL[]; 392 393// "Learn more" URL for killed tab page. 394extern const char kKillReasonURL[]; 395 396// "Learn more" URL for the Privacy section under Options. 397extern const char kPrivacyLearnMoreURL[]; 398 399// "Learn more" URL for the "Do not track" setting in the privacy section. 400extern const char kDoNotTrackLearnMoreURL[]; 401 402#if defined(OS_CHROMEOS) 403// These URLs are currently ChromeOS only. 404 405// "Learn more" URL for the attestation of content protection setting. 406extern const char kAttestationForContentProtectionLearnMoreURL[]; 407 408// "Learn more" URL for the enhanced playback notification dialog. 409extern const char kEnhancedPlaybackNotificationLearnMoreURL[]; 410#endif 411 412// The URL for the Chromium project used in the About dialog. 413extern const char kChromiumProjectURL[]; 414 415// The URL for the "Learn more" page for the usage/crash reporting option in the 416// first run dialog. 417extern const char kLearnMoreReportingURL[]; 418 419// The URL for the "Learn more" page for the outdated plugin infobar. 420extern const char kOutdatedPluginLearnMoreURL[]; 421 422// The URL for the "Learn more" page for the blocked plugin infobar. 423extern const char kBlockedPluginLearnMoreURL[]; 424 425// The URL for the "Learn more" page for hotword search voice trigger. 426extern const char kHotwordLearnMoreURL[]; 427 428// The URL for the "Learn more" page for register protocol handler infobars. 429extern const char kLearnMoreRegisterProtocolHandlerURL[]; 430 431// The URL for the "Learn more" page for sync setup on the personal stuff page. 432extern const char kSyncLearnMoreURL[]; 433 434// The URL for the "Learn more" page for download scanning. 435extern const char kDownloadScanningLearnMoreURL[]; 436 437// The URL for the "Learn more" page for interrupted downloads. 438extern const char kDownloadInterruptedLearnMoreURL[]; 439 440// The URL for the "Learn more" page on the sync setup dialog, when syncing 441// everything. 442extern const char kSyncEverythingLearnMoreURL[]; 443 444// The URL for information on how to use the app launcher. 445extern const char kAppLauncherHelpURL[]; 446 447// The URL for the "Learn more" page on sync encryption. 448extern const char kSyncEncryptionHelpURL[]; 449 450// The URL for the "Learn more" link when there is a sync error. 451extern const char kSyncErrorsHelpURL[]; 452 453#if defined(OS_CHROMEOS) 454// The URL for the "Learn more" link for natural scrolling on ChromeOS. 455extern const char kNaturalScrollHelpURL[]; 456 457// The URL for the Learn More page about enterprise enrolled devices. 458extern const char kLearnMoreEnterpriseURL[]; 459#endif 460 461// The URL for the Learn More link of the non-CWS bubble. 462extern const char kRemoveNonCWSExtensionURL[]; 463 464// The URL for the Learn More link for the corrupt extension message. 465extern const char kCorruptExtensionURL[]; 466 467extern const char kNotificationsHelpURL[]; 468 469// The Welcome Notification More Info URL. 470extern const char kNotificationWelcomeLearnMoreURL[]; 471 472// Gets the hosts/domains that are shown in chrome://chrome-urls. 473extern const char* const kChromeHostURLs[]; 474extern const size_t kNumberOfChromeHostURLs; 475 476// "Debug" pages which are dangerous and not for general consumption. 477extern const char* const kChromeDebugURLs[]; 478extern const int kNumberOfChromeDebugURLs; 479 480// The chrome-native: scheme is used show pages rendered with platform specific 481// widgets instead of using HTML. 482extern const char kChromeNativeScheme[]; 483 484// The chrome-search: scheme is served by the same backend as chrome:. However, 485// only specific URLDataSources are enabled to serve requests via the 486// chrome-search: scheme. See |InstantIOContext::ShouldServiceRequest| and its 487// callers for details. Note that WebUIBindings should never be granted to 488// chrome-search: pages. chrome-search: pages are displayable but not readable 489// by external search providers (that are rendered by Instant renderer 490// processes), and neither displayable nor readable by normal (non-Instant) web 491// pages. To summarize, a non-Instant process, when trying to access 492// 'chrome-search://something', will bump up against the following: 493// 494// 1. Renderer: The display-isolated check in WebKit will deny the request, 495// 2. Browser: Assuming they got by #1, the scheme checks in 496// URLDataSource::ShouldServiceRequest will deny the request, 497// 3. Browser: for specific sub-classes of URLDataSource, like ThemeSource 498// there are additional Instant-PID checks that make sure the request is 499// coming from a blessed Instant process, and deny the request. 500extern const char kChromeSearchScheme[]; 501 502// Pages under chrome-search. 503extern const char kChromeSearchLocalNtpHost[]; 504extern const char kChromeSearchLocalNtpUrl[]; 505extern const char kChromeSearchRemoteNtpHost[]; 506 507// Host and URL for most visited iframes used on the Instant Extended NTP. 508extern const char kChromeSearchMostVisitedHost[]; 509extern const char kChromeSearchMostVisitedUrl[]; 510 511#if defined(OS_CHROMEOS) 512extern const char kCrosScheme[]; 513extern const char kDriveScheme[]; 514#endif 515 516// Scheme for the DOM Distiller component. 517extern const char kDomDistillerScheme[]; 518 519// "Learn more" URL for the Cloud Print section under Options. 520extern const char kCloudPrintLearnMoreURL[]; 521 522// "Learn more" URL for the Cloud Print Preview No Destinations Promotion. 523extern const char kCloudPrintNoDestinationsLearnMoreURL[]; 524 525// Parameters that get appended to force SafeSearch. 526extern const char kSafeSearchSafeParameter[]; 527extern const char kSafeSearchSsuiParameter[]; 528 529// The URL for the "Learn more" link in the media access infobar. 530extern const char kMediaAccessLearnMoreUrl[]; 531 532// The URL for the "Learn more" link in the language settings. 533extern const char kLanguageSettingsLearnMoreUrl[]; 534 535#if defined(OS_MACOSX) 536// The URL for the 32-bit Mac deprecation help center article 537extern const char kMac32BitDeprecationURL[]; 538#endif 539 540// The URL for the "Learn more" link the the Easy Unlock settings. 541extern const char kEasyUnlockLearnMoreUrl[]; 542 543// The URL to the device management page in the Easy Unlock settings. 544extern const char kEasyUnlockManagementUrl[]; 545 546} // namespace chrome 547 548#endif // CHROME_COMMON_URL_CONSTANTS_H_ 549