chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

   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/browser/ui/webui/chrome_web_ui_controller_factory.h"
   6
   7 #include <vector>
   8
   9 #include "base/bind.h"
  10 #include "base/command_line.h"
  11 #include "base/location.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "chrome/browser/about_flags.h"
  15 #include "chrome/browser/bookmarks/enhanced_bookmarks_features.h"
  16 #include "chrome/browser/dom_distiller/dom_distiller_service_factory.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/profiles/profile_manager.h"
  19 #include "chrome/browser/ui/webui/about_ui.h"
  20 #include "chrome/browser/ui/webui/bookmarks_ui.h"
  21 #include "chrome/browser/ui/webui/components_ui.h"
  22 #include "chrome/browser/ui/webui/constrained_web_dialog_ui.h"
  23 #include "chrome/browser/ui/webui/crashes_ui.h"
  24 #include "chrome/browser/ui/webui/device_log_ui.h"
  25 #include "chrome/browser/ui/webui/domain_reliability_internals_ui.h"
  26 #include "chrome/browser/ui/webui/downloads_ui.h"
  27 #include "chrome/browser/ui/webui/flags_ui.h"
  28 #include "chrome/browser/ui/webui/flash_ui.h"
  29 #include "chrome/browser/ui/webui/gcm_internals_ui.h"
  30 #include "chrome/browser/ui/webui/help/help_ui.h"
  31 #include "chrome/browser/ui/webui/history_ui.h"
  32 #include "chrome/browser/ui/webui/identity_internals_ui.h"
  33 #include "chrome/browser/ui/webui/instant_ui.h"
  34 #include "chrome/browser/ui/webui/interstitials/interstitial_ui.h"
  35 #include "chrome/browser/ui/webui/invalidations_ui.h"
  36 #include "chrome/browser/ui/webui/local_state/local_state_ui.h"
  37 #include "chrome/browser/ui/webui/memory_internals/memory_internals_ui.h"
  38 #include "chrome/browser/ui/webui/net_internals/net_internals_ui.h"
  39 #include "chrome/browser/ui/webui/omnibox/omnibox_ui.h"
  40 #include "chrome/browser/ui/webui/options/options_ui.h"
  41 #include "chrome/browser/ui/webui/password_manager_internals/password_manager_internals_ui.h"
  42 #include "chrome/browser/ui/webui/plugins_ui.h"
  43 #include "chrome/browser/ui/webui/predictors/predictors_ui.h"
  44 #include "chrome/browser/ui/webui/profiler_ui.h"
  45 #include "chrome/browser/ui/webui/settings/md_settings_ui.h"
  46 #include "chrome/browser/ui/webui/signin/inline_login_ui.h"
  47 #include "chrome/browser/ui/webui/signin/profile_signin_confirmation_ui.h"
  48 #include "chrome/browser/ui/webui/signin/user_manager_ui.h"
  49 #include "chrome/browser/ui/webui/signin_internals_ui.h"
  50 #include "chrome/browser/ui/webui/sync_internals_ui.h"
  51 #include "chrome/browser/ui/webui/translate_internals/translate_internals_ui.h"
  52 #include "chrome/browser/ui/webui/user_actions/user_actions_ui.h"
  53 #include "chrome/browser/ui/webui/version_ui.h"
  54 #include "chrome/common/chrome_switches.h"
  55 #include "chrome/common/pref_names.h"
  56 #include "chrome/common/url_constants.h"
  57 #include "components/dom_distiller/core/dom_distiller_constants.h"
  58 #include "components/dom_distiller/core/dom_distiller_service.h"
  59 #include "components/dom_distiller/core/url_constants.h"
  60 #include "components/dom_distiller/webui/dom_distiller_ui.h"
  61 #include "components/favicon/core/favicon_service.h"
  62 #include "components/favicon_base/favicon_util.h"
  63 #include "components/favicon_base/select_favicon_frames.h"
  64 #include "components/history/core/browser/history_types.h"
  65 #include "components/password_manager/core/common/password_manager_switches.h"
  66 #include "components/signin/core/common/profile_management_switches.h"
  67 #include "content/public/browser/web_contents.h"
  68 #include "content/public/browser/web_ui.h"
  69 #include "content/public/common/content_client.h"
  70 #include "content/public/common/url_utils.h"
  71 #include "ui/gfx/favicon_size.h"
  72 #include "ui/oobe/oobe_md_ui.h"
  73 #include "ui/web_dialogs/web_dialog_ui.h"
  74 #include "url/gurl.h"
  75
  76 #if !defined(DISABLE_NACL)
  77 #include "chrome/browser/ui/webui/nacl_ui.h"
  78 #endif
  79
  80 #if defined(ENABLE_CONFIGURATION_POLICY)
  81 #include "chrome/browser/ui/webui/policy_ui.h"
  82 #endif
  83
  84 #if defined(ENABLE_WEBRTC)
  85 #include "chrome/browser/ui/webui/media/webrtc_logs_ui.h"
  86 #endif
  87
  88 #if defined(ENABLE_PRINT_PREVIEW)
  89 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
  90 #endif
  91
  92 #if defined(ENABLE_MEDIA_ROUTER)
  93 #include "chrome/browser/ui/webui/media_router/media_router_ui.h"
  94 #endif
  95
  96 #if !defined(OS_ANDROID)
  97 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
  98 #include "chrome/browser/ui/webui/quota_internals/quota_internals_ui.h"
  99 #include "chrome/browser/ui/webui/sync_file_system_internals/sync_file_system_internals_ui.h"
 100 #include "chrome/browser/ui/webui/system_info_ui.h"
 101 #include "chrome/browser/ui/webui/uber/uber_ui.h"
 102 #endif
 103
 104 #if defined(OS_ANDROID) || defined(OS_IOS)
 105 #include "chrome/browser/ui/webui/net_export_ui.h"
 106 #else
 107 #include "chrome/browser/devtools/device/webrtc/webrtc_device_provider.h"
 108 #include "chrome/browser/signin/easy_unlock_service.h"
 109 #include "chrome/browser/signin/easy_unlock_service_factory.h"
 110 #include "chrome/browser/ui/webui/copresence_ui.h"
 111 #include "chrome/browser/ui/webui/devtools_ui.h"
 112 #include "chrome/browser/ui/webui/inspect_ui.h"
 113 #include "components/proximity_auth/webui/proximity_auth_ui.h"
 114 #include "components/proximity_auth/webui/url_constants.h"
 115 #endif
 116
 117 #if defined(OS_CHROMEOS)
 118 #include "chrome/browser/chromeos/oobe/oobe.h"
 119 #include "chrome/browser/ui/webui/chromeos/bluetooth_pairing_ui.h"
 120 #include "chrome/browser/ui/webui/chromeos/certificate_manager_dialog_ui.h"
 121 #include "chrome/browser/ui/webui/chromeos/choose_mobile_network_ui.h"
 122 #include "chrome/browser/ui/webui/chromeos/cryptohome_ui.h"
 123 #include "chrome/browser/ui/webui/chromeos/drive_internals_ui.h"
 124 #include "chrome/browser/ui/webui/chromeos/first_run/first_run_ui.h"
 125 #include "chrome/browser/ui/webui/chromeos/imageburner/imageburner_ui.h"
 126 #include "chrome/browser/ui/webui/chromeos/keyboard_overlay_ui.h"
 127 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 128 #include "chrome/browser/ui/webui/chromeos/mobile_setup_ui.h"
 129 #include "chrome/browser/ui/webui/chromeos/network_ui.h"
 130 #include "chrome/browser/ui/webui/chromeos/nfc_debug_ui.h"
 131 #include "chrome/browser/ui/webui/chromeos/power_ui.h"
 132 #include "chrome/browser/ui/webui/chromeos/provided_file_systems_ui.h"
 133 #include "chrome/browser/ui/webui/chromeos/proxy_settings_ui.h"
 134 #include "chrome/browser/ui/webui/chromeos/salsa_ui.h"
 135 #include "chrome/browser/ui/webui/chromeos/set_time_ui.h"
 136 #include "chrome/browser/ui/webui/chromeos/sim_unlock_ui.h"
 137 #include "chrome/browser/ui/webui/chromeos/slow_trace_ui.h"
 138 #include "chrome/browser/ui/webui/chromeos/slow_ui.h"
 139 #endif
 140
 141 #if !defined(OS_CHROMEOS)
 142 #include "chrome/browser/ui/webui/app_launcher_page_ui.h"
 143 #endif
 144
 145 #if defined(USE_AURA)
 146 #include "chrome/browser/ui/webui/gesture_config_ui.h"
 147 #endif
 148
 149 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 150 #include "chrome/browser/ui/sync/sync_promo_ui.h"
 151 #endif
 152
 153 #if defined(OS_WIN)
 154 #include "chrome/browser/ui/webui/conflicts_ui.h"
 155 #include "chrome/browser/ui/webui/set_as_default_browser_ui.h"
 156 #endif
 157
 158 #if (defined(USE_NSS_CERTS) || defined(USE_OPENSSL_CERTS)) && defined(USE_AURA)
 159 #include "chrome/browser/ui/webui/certificate_viewer_ui.h"
 160 #endif
 161
 162 #if defined(ENABLE_SERVICE_DISCOVERY)
 163 #include "chrome/browser/ui/webui/local_discovery/local_discovery_ui.h"
 164 #endif
 165
 166 #if defined(ENABLE_APP_LIST)
 167 #include "chrome/browser/ui/webui/app_list/start_page_ui.h"
 168 #endif
 169
 170 #if defined(ENABLE_EXTENSIONS)
 171 #include "chrome/browser/extensions/extension_web_ui.h"
 172 #include "chrome/browser/ui/webui/extensions/extensions_ui.h"
 173 #include "chrome/browser/ui/webui/voice_search_ui.h"
 174 #include "chrome/common/extensions/extension_constants.h"
 175 #include "extensions/browser/extension_registry.h"
 176 #include "extensions/browser/extension_system.h"
 177 #include "extensions/common/constants.h"
 178 #include "extensions/common/extension.h"
 179 #include "extensions/common/feature_switch.h"
 180 #include "extensions/common/manifest.h"
 181 #endif
 182
 183 using content::WebUI;
 184 using content::WebUIController;
 185 using ui::ExternalWebDialogUI;
 186 using ui::WebDialogUI;
 187
 188 namespace {
 189
 190 // A function for creating a new WebUI. The caller owns the return value, which
 191 // may be NULL (for example, if the URL refers to an non-existent extension).
 192 typedef WebUIController* (*WebUIFactoryFunction)(WebUI* web_ui,
 193                                                  const GURL& url);
 194
 195 // Template for defining WebUIFactoryFunction.
 196 template<class T>
 197 WebUIController* NewWebUI(WebUI* web_ui, const GURL& url) {
 198   return new T(web_ui);
 199 }
 200
 201 #if defined(ENABLE_EXTENSIONS)
 202 // Special cases for extensions.
 203 template<>
 204 WebUIController* NewWebUI<ExtensionWebUI>(WebUI* web_ui,
 205                                           const GURL& url) {
 206   return new ExtensionWebUI(web_ui, url);
 207 }
 208 #endif  // defined(ENABLE_EXTENSIONS)
 209
 210 // Special case for older about: handlers.
 211 template<>
 212 WebUIController* NewWebUI<AboutUI>(WebUI* web_ui, const GURL& url) {
 213   return new AboutUI(web_ui, url.host());
 214 }
 215
 216 #if defined(OS_CHROMEOS)
 217 template<>
 218 WebUIController* NewWebUI<chromeos::OobeUI>(WebUI* web_ui, const GURL& url) {
 219   return new chromeos::OobeUI(web_ui, url);
 220 }
 221
 222 template <>
 223 WebUIController* NewWebUI<OobeMdUI>(WebUI* web_ui, const GURL& url) {
 224   chromeos::Oobe::Register();
 225   return new OobeMdUI(web_ui, url.host());
 226 }
 227 #endif
 228
 229 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 230 // Special case for chrome://proximity_auth.
 231 template <>
 232 WebUIController* NewWebUI<proximity_auth::ProximityAuthUI>(WebUI* web_ui,
 233                                                            const GURL& url) {
 234   content::BrowserContext* browser_context =
 235       web_ui->GetWebContents()->GetBrowserContext();
 236   return new proximity_auth::ProximityAuthUI(
 237       web_ui, EasyUnlockServiceFactory::GetForBrowserContext(browser_context));
 238 }
 239 #endif
 240
 241 // Special cases for DOM distiller.
 242 template<>
 243 WebUIController* NewWebUI<dom_distiller::DomDistillerUi>(WebUI* web_ui,
 244                                                          const GURL& url) {
 245   // The DomDistillerUi can not depend on components/dom_distiller/content,
 246   // so inject the correct DomDistillerService from chrome/.
 247   content::BrowserContext* browser_context =
 248       web_ui->GetWebContents()->GetBrowserContext();
 249   dom_distiller::DomDistillerService* service =
 250       dom_distiller::DomDistillerServiceFactory::GetForBrowserContext(
 251           browser_context);
 252   return new dom_distiller::DomDistillerUi(
 253       web_ui, service, dom_distiller::kDomDistillerScheme);
 254 }
 255
 256 #if defined(ENABLE_EXTENSIONS)
 257 // Only create ExtensionWebUI for URLs that are allowed extension bindings,
 258 // hosted by actual tabs.
 259 bool NeedsExtensionWebUI(Profile* profile, const GURL& url) {
 260   if (!profile)
 261     return false;
 262
 263   const extensions::Extension* extension =
 264       extensions::ExtensionRegistry::Get(profile)->enabled_extensions().
 265           GetExtensionOrAppByURL(url);
 266   // Allow bindings for all packaged extensions and component hosted apps.
 267   return extension &&
 268       (!extension->is_hosted_app() ||
 269        extension->location() == extensions::Manifest::COMPONENT);
 270 }
 271 #endif
 272
 273 bool IsAboutUI(const GURL& url) {
 274   return (url.host() == chrome::kChromeUIChromeURLsHost ||
 275           url.host() == chrome::kChromeUICreditsHost ||
 276           url.host() == chrome::kChromeUIDNSHost ||
 277           url.host() == chrome::kChromeUIMemoryHost ||
 278           url.host() == chrome::kChromeUIMemoryRedirectHost
 279 #if !defined(OS_ANDROID)
 280           || url.host() == chrome::kChromeUITermsHost
 281 #endif
 282 #if defined(OS_LINUX) || defined(OS_OPENBSD)
 283           || url.host() == chrome::kChromeUILinuxProxyConfigHost
 284           || url.host() == chrome::kChromeUISandboxHost
 285 #endif
 286 #if defined(OS_CHROMEOS)
 287           || url.host() == chrome::kChromeUIDiscardsHost
 288           || url.host() == chrome::kChromeUIOSCreditsHost
 289 #endif
 290          );  // NOLINT
 291 }
 292
 293 // Returns a function that can be used to create the right type of WebUI for a
 294 // tab, based on its URL. Returns NULL if the URL doesn't have WebUI associated
 295 // with it.
 296 WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
 297                                              Profile* profile,
 298                                              const GURL& url) {
 299 #if defined(ENABLE_EXTENSIONS)
 300   if (NeedsExtensionWebUI(profile, url))
 301     return &NewWebUI<ExtensionWebUI>;
 302 #endif
 303
 304   // This will get called a lot to check all URLs, so do a quick check of other
 305   // schemes to filter out most URLs.
 306   if (!url.SchemeIs(content::kChromeDevToolsScheme) &&
 307       !url.SchemeIs(content::kChromeUIScheme)) {
 308     return NULL;
 309   }
 310
 311   /****************************************************************************
 312    * Please keep this in alphabetical order. If #ifs or special logics are
 313    * required, add it below in the appropriate section.
 314    ***************************************************************************/
 315   // We must compare hosts only since some of the Web UIs append extra stuff
 316   // after the host name.
 317   // All platform builds of Chrome will need to have a cloud printing
 318   // dialog as backup.  It's just that on Chrome OS, it's the only
 319   // print dialog.
 320   if (url.host() == chrome::kChromeUICloudPrintResourcesHost)
 321     return &NewWebUI<ExternalWebDialogUI>;
 322   if (url.host() == chrome::kChromeUICloudPrintSetupHost)
 323     return &NewWebUI<WebDialogUI>;
 324   if (url.host() == chrome::kChromeUIComponentsHost)
 325     return &NewWebUI<ComponentsUI>;
 326   if (url.spec() == chrome::kChromeUIConstrainedHTMLTestURL)
 327     return &NewWebUI<ConstrainedWebDialogUI>;
 328   if (url.host() == chrome::kChromeUICrashesHost)
 329     return &NewWebUI<CrashesUI>;
 330   if (url.host() == chrome::kChromeUIDeviceLogHost)
 331     return &NewWebUI<chromeos::DeviceLogUI>;
 332   if (url.host() == chrome::kChromeUIDomainReliabilityInternalsHost)
 333     return &NewWebUI<DomainReliabilityInternalsUI>;
 334   if (url.host() == chrome::kChromeUIFlagsHost)
 335     return &NewWebUI<FlagsUI>;
 336   if (url.host() == chrome::kChromeUIHistoryFrameHost)
 337     return &NewWebUI<HistoryUI>;
 338   if (url.host() == chrome::kChromeUIInstantHost)
 339     return &NewWebUI<InstantUI>;
 340   if (url.host() == chrome::kChromeUIInterstitialHost)
 341     return &NewWebUI<InterstitialUI>;
 342   if (url.host() == chrome::kChromeUIInvalidationsHost)
 343     return &NewWebUI<InvalidationsUI>;
 344   if (url.host() == chrome::kChromeUILocalStateHost)
 345     return &NewWebUI<LocalStateUI>;
 346   if (url.host() == chrome::kChromeUIMemoryInternalsHost)
 347     return &NewWebUI<MemoryInternalsUI>;
 348   if (url.host() == chrome::kChromeUINetInternalsHost)
 349     return &NewWebUI<NetInternalsUI>;
 350   if (url.host() == chrome::kChromeUIOmniboxHost)
 351     return &NewWebUI<OmniboxUI>;
 352   if (url.host() == chrome::kChromeUIPasswordManagerInternalsHost)
 353     return &NewWebUI<PasswordManagerInternalsUI>;
 354   if (url.host() == chrome::kChromeUIPredictorsHost)
 355     return &NewWebUI<PredictorsUI>;
 356   if (url.host() == chrome::kChromeUIProfilerHost)
 357     return &NewWebUI<ProfilerUI>;
 358   if (url.host() == chrome::kChromeUISignInInternalsHost)
 359     return &NewWebUI<SignInInternalsUI>;
 360   if (url.host() == chrome::kChromeUISupervisedUserPassphrasePageHost)
 361     return &NewWebUI<ConstrainedWebDialogUI>;
 362   if (url.host() == chrome::kChromeUISyncInternalsHost)
 363     return &NewWebUI<SyncInternalsUI>;
 364   if (url.host() == chrome::kChromeUISyncResourcesHost)
 365     return &NewWebUI<WebDialogUI>;
 366   if (url.host() == chrome::kChromeUITranslateInternalsHost)
 367     return &NewWebUI<TranslateInternalsUI>;
 368   if (url.host() == chrome::kChromeUIUserActionsHost)
 369     return &NewWebUI<UserActionsUI>;
 370   if (url.host() == chrome::kChromeUIVersionHost)
 371     return &NewWebUI<VersionUI>;
 372
 373   /****************************************************************************
 374    * OS Specific #defines
 375    ***************************************************************************/
 376 #if !defined(OS_ANDROID)
 377 #if !defined(OS_CHROMEOS)
 378   // AppLauncherPage is not needed on Android or ChromeOS.
 379   if (url.host() == chrome::kChromeUIAppLauncherPageHost &&
 380       profile && extensions::ExtensionSystem::Get(profile)->
 381           extension_service()) {
 382     return &NewWebUI<AppLauncherPageUI>;
 383   }
 384 #endif
 385
 386   // Bookmarks are part of NTP on Android.
 387   if (url.host() == chrome::kChromeUIBookmarksHost)
 388     return &NewWebUI<BookmarksUI>;
 389   // Downloads list on Android uses the built-in download manager.
 390   if (url.host() == chrome::kChromeUIDownloadsHost)
 391     return &NewWebUI<DownloadsUI>;
 392   // Flash is not available on android.
 393   if (url.host() == chrome::kChromeUIFlashHost)
 394     return &NewWebUI<FlashUI>;
 395   if (url.host() == chrome::kChromeUIGCMInternalsHost)
 396     return &NewWebUI<GCMInternalsUI>;
 397   // Help is implemented with native UI elements on Android.
 398   if (url.host() == chrome::kChromeUIHelpFrameHost)
 399     return &NewWebUI<HelpUI>;
 400   // Identity API is not available on Android.
 401   if (url.host() == chrome::kChromeUIIdentityInternalsHost)
 402     return &NewWebUI<IdentityInternalsUI>;
 403   if (url.host() == chrome::kChromeUINewTabHost)
 404     return &NewWebUI<NewTabUI>;
 405   if (url.host() == chrome::kChromeUIMdSettingsHost &&
 406       ::switches::MdSettingsEnabled()) {
 407     return &NewWebUI<settings::MdSettingsUI>;
 408   }
 409   // Android does not support plugins for now.
 410   if (url.host() == chrome::kChromeUIPluginsHost)
 411     return &NewWebUI<PluginsUI>;
 412   if (url.host() == chrome::kChromeUIQuotaInternalsHost)
 413     return &NewWebUI<QuotaInternalsUI>;
 414   // Settings are implemented with native UI elements on Android.
 415   // Handle chrome://settings if settings in a window and about in settings
 416   // are enabled.
 417   if (url.host() == chrome::kChromeUISettingsFrameHost ||
 418       (url.host() == chrome::kChromeUISettingsHost &&
 419        ::switches::AboutInSettingsEnabled())) {
 420     return &NewWebUI<options::OptionsUI>;
 421   }
 422   if (url.host() == chrome::kChromeUISyncFileSystemInternalsHost)
 423     return &NewWebUI<SyncFileSystemInternalsUI>;
 424   if (url.host() == chrome::kChromeUISystemInfoHost)
 425     return &NewWebUI<SystemInfoUI>;
 426   // Uber frame is not used on Android.
 427   if (url.host() == chrome::kChromeUIUberFrameHost)
 428     return &NewWebUI<UberFrameUI>;
 429   // Uber page is not used on Android.
 430   if (url.host() == chrome::kChromeUIUberHost)
 431     return &NewWebUI<UberUI>;
 432 #endif  // !defined(OS_ANDROID)
 433 #if defined(OS_WIN)
 434   if (url.host() == chrome::kChromeUIConflictsHost)
 435     return &NewWebUI<ConflictsUI>;
 436   if (url.host() == chrome::kChromeUIMetroFlowHost)
 437     return &NewWebUI<SetAsDefaultBrowserUI>;
 438 #endif
 439 #if defined(OS_CHROMEOS)
 440   if (url.host() == chrome::kChromeUIBluetoothPairingHost)
 441     return &NewWebUI<chromeos::BluetoothPairingUI>;
 442   if (url.host() == chrome::kChromeUICertificateManagerHost)
 443     return &NewWebUI<chromeos::CertificateManagerDialogUI>;
 444   if (url.host() == chrome::kChromeUIChooseMobileNetworkHost)
 445     return &NewWebUI<chromeos::ChooseMobileNetworkUI>;
 446   if (url.host() == chrome::kChromeUICryptohomeHost)
 447     return &NewWebUI<chromeos::CryptohomeUI>;
 448   if (url.host() == chrome::kChromeUIDriveInternalsHost)
 449     return &NewWebUI<chromeos::DriveInternalsUI>;
 450   if (url.host() == chrome::kChromeUIImageBurnerHost)
 451     return &NewWebUI<ImageBurnUI>;
 452   if (url.host() == chrome::kChromeUIFirstRunHost)
 453     return &NewWebUI<chromeos::FirstRunUI>;
 454   if (url.host() == chrome::kChromeUIKeyboardOverlayHost)
 455     return &NewWebUI<KeyboardOverlayUI>;
 456   if (url.host() == chrome::kChromeUIMobileSetupHost)
 457     return &NewWebUI<MobileSetupUI>;
 458   if (url.host() == chrome::kChromeUINetworkHost)
 459     return &NewWebUI<chromeos::NetworkUI>;
 460   if (url.host() == chrome::kChromeUINfcDebugHost)
 461     return &NewWebUI<chromeos::NfcDebugUI>;
 462   if (url.host() == chrome::kChromeUIOobeHost)
 463     return &NewWebUI<chromeos::OobeUI>;
 464   if (url.host() == chrome::kChromeUIOobeMdHost)
 465     return &NewWebUI<OobeMdUI>;
 466   if (url.host() == chrome::kChromeUIPowerHost)
 467     return &NewWebUI<chromeos::PowerUI>;
 468   if (url.host() == chrome::kChromeUIProvidedFileSystemsHost)
 469     return &NewWebUI<chromeos::ProvidedFileSystemsUI>;
 470   if (url.host() == chrome::kChromeUIProxySettingsHost)
 471     return &NewWebUI<chromeos::ProxySettingsUI>;
 472   if (url.host() == chrome::kChromeUISalsaHost)
 473     return &NewWebUI<SalsaUI>;
 474   if (url.host() == chrome::kChromeUISetTimeHost)
 475     return &NewWebUI<chromeos::SetTimeUI>;
 476   if (url.host() == chrome::kChromeUISimUnlockHost)
 477     return &NewWebUI<chromeos::SimUnlockUI>;
 478   if (url.host() == chrome::kChromeUISlowHost)
 479     return &NewWebUI<chromeos::SlowUI>;
 480   if (url.host() == chrome::kChromeUISlowTraceHost)
 481     return &NewWebUI<chromeos::SlowTraceController>;
 482 #endif  // defined(OS_CHROMEOS)
 483 #if defined(OS_ANDROID) || defined(OS_IOS)
 484   if (url.host() == chrome::kChromeUINetExportHost)
 485     return &NewWebUI<NetExportUI>;
 486 #else
 487   if (url.host() == chrome::kChromeUICopresenceHost)
 488     return &NewWebUI<CopresenceUI>;
 489   if (url.host() == chrome::kChromeUIChromeSigninHost)
 490     return &NewWebUI<InlineLoginUI>;
 491   if (url.SchemeIs(content::kChromeDevToolsScheme))
 492     return &NewWebUI<DevToolsUI>;
 493   if (url.host() == proximity_auth::kChromeUIProximityAuthHost)
 494     return &NewWebUI<proximity_auth::ProximityAuthUI>;
 495   if (url.host() == chrome::kChromeUIWebRTCDeviceProviderHost)
 496     return &NewWebUI<WebRTCDeviceProvider::WebUI>;
 497
 498   // chrome://inspect isn't supported on Android nor iOS. Page debugging is
 499   // handled by a remote devtools on the host machine, and other elements, i.e.
 500   // extensions aren't supported.
 501   if (url.host() == chrome::kChromeUIInspectHost)
 502     return &NewWebUI<InspectUI>;
 503 #endif
 504 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
 505   if (url.host() == chrome::kChromeUIUserManagerHost &&
 506       switches::IsNewAvatarMenu()) {
 507     return &NewWebUI<UserManagerUI>;
 508   }
 509 #endif
 510
 511   /****************************************************************************
 512    * Other #defines and special logics.
 513    ***************************************************************************/
 514 #if !defined(DISABLE_NACL)
 515   if (url.host() == chrome::kChromeUINaClHost)
 516     return &NewWebUI<NaClUI>;
 517 #endif
 518 #if (defined(OS_LINUX) && defined(TOOLKIT_VIEWS)) || defined(USE_AURA)
 519   if (url.host() == chrome::kChromeUITabModalConfirmDialogHost) {
 520     return &NewWebUI<ConstrainedWebDialogUI>;
 521   }
 522 #endif
 523 #if defined(USE_AURA)
 524   if (url.host() == chrome::kChromeUIGestureConfigHost)
 525     return &NewWebUI<GestureConfigUI>;
 526 #endif
 527 #if (defined(USE_NSS_CERTS) || defined(USE_OPENSSL_CERTS)) && defined(USE_AURA)
 528   if (url.host() == chrome::kChromeUICertificateViewerHost)
 529     return &NewWebUI<CertificateViewerUI>;
 530 #if defined(OS_CHROMEOS)
 531   if (url.host() == chrome::kChromeUICertificateViewerDialogHost)
 532     return &NewWebUI<CertificateViewerModalDialogUI>;
 533 #endif
 534 #endif  // (USE_NSS_CERTS || USE_OPENSSL_CERTS) && USE_AURA
 535
 536 #if defined(ENABLE_CONFIGURATION_POLICY)
 537   if (url.host() == chrome::kChromeUIPolicyHost)
 538     return &NewWebUI<PolicyUI>;
 539 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 540   if (url.host() == chrome::kChromeUIProfileSigninConfirmationHost)
 541     return &NewWebUI<ProfileSigninConfirmationUI>;
 542 #endif
 543 #endif  // defined(ENABLE_CONFIGURATION_POLICY)
 544
 545 #if defined(ENABLE_APP_LIST)
 546   if (url.host() == chrome::kChromeUIAppListStartPageHost)
 547     return &NewWebUI<app_list::StartPageUI>;
 548 #endif
 549 #if defined(ENABLE_EXTENSIONS)
 550   if (url.host() == chrome::kChromeUIExtensionsFrameHost)
 551     return &NewWebUI<extensions::ExtensionsUI>;
 552   if (url.host() == chrome::kChromeUIVoiceSearchHost)
 553     return &NewWebUI<VoiceSearchUI>;
 554 #endif
 555 #if defined(ENABLE_PRINT_PREVIEW)
 556   if (url.host() == chrome::kChromeUIPrintHost &&
 557       !profile->GetPrefs()->GetBoolean(prefs::kPrintPreviewDisabled)) {
 558     return &NewWebUI<PrintPreviewUI>;
 559   }
 560 #endif
 561 #if defined(ENABLE_SERVICE_DISCOVERY)
 562   if (url.host() == chrome::kChromeUIDevicesHost) {
 563     return &NewWebUI<LocalDiscoveryUI>;
 564   }
 565 #endif
 566 #if defined(ENABLE_WEBRTC)
 567   if (url.host() == chrome::kChromeUIWebRtcLogsHost)
 568     return &NewWebUI<WebRtcLogsUI>;
 569 #endif
 570 #if defined(ENABLE_MEDIA_ROUTER)
 571   if (url.host() == chrome::kChromeUIMediaRouterHost &&
 572       switches::MediaRouterEnabled()) {
 573     return &NewWebUI<media_router::MediaRouterUI>;
 574   }
 575 #endif
 576   if (IsAboutUI(url))
 577     return &NewWebUI<AboutUI>;
 578
 579   if (IsEnableDomDistillerSet() &&
 580       url.host() == dom_distiller::kChromeUIDomDistillerHost) {
 581     return &NewWebUI<dom_distiller::DomDistillerUi>;
 582   }
 583
 584   return NULL;
 585 }
 586
 587 void RunFaviconCallbackAsync(
 588     const favicon_base::FaviconResultsCallback& callback,
 589     const std::vector<favicon_base::FaviconRawBitmapResult>* results) {
 590   base::ThreadTaskRunnerHandle::Get()->PostTask(
 591       FROM_HERE,
 592       base::Bind(&favicon::FaviconService::FaviconResultsCallbackRunner,
 593                  callback, base::Owned(results)));
 594 }
 595
 596 }  // namespace
 597
 598 WebUI::TypeID ChromeWebUIControllerFactory::GetWebUIType(
 599       content::BrowserContext* browser_context, const GURL& url) const {
 600   Profile* profile = Profile::FromBrowserContext(browser_context);
 601   WebUIFactoryFunction function = GetWebUIFactoryFunction(NULL, profile, url);
 602   return function ? reinterpret_cast<WebUI::TypeID>(function) : WebUI::kNoWebUI;
 603 }
 604
 605 bool ChromeWebUIControllerFactory::UseWebUIForURL(
 606     content::BrowserContext* browser_context, const GURL& url) const {
 607   return GetWebUIType(browser_context, url) != WebUI::kNoWebUI;
 608 }
 609
 610 bool ChromeWebUIControllerFactory::UseWebUIBindingsForURL(
 611     content::BrowserContext* browser_context, const GURL& url) const {
 612   bool needs_extensions_web_ui = false;
 613 #if defined(ENABLE_EXTENSIONS)
 614   // Extensions are rendered via WebUI in tabs, but don't actually need WebUI
 615   // bindings (see the ExtensionWebUI constructor).
 616   needs_extensions_web_ui =
 617       NeedsExtensionWebUI(Profile::FromBrowserContext(browser_context), url);
 618 #endif
 619   return !needs_extensions_web_ui && UseWebUIForURL(browser_context, url);
 620 }
 621
 622 WebUIController* ChromeWebUIControllerFactory::CreateWebUIControllerForURL(
 623     WebUI* web_ui,
 624     const GURL& url) const {
 625   Profile* profile = Profile::FromWebUI(web_ui);
 626   WebUIFactoryFunction function = GetWebUIFactoryFunction(web_ui, profile, url);
 627   if (!function)
 628     return NULL;
 629
 630   return (*function)(web_ui, url);
 631 }
 632
 633 void ChromeWebUIControllerFactory::GetFaviconForURL(
 634     Profile* profile,
 635     const GURL& page_url,
 636     const std::vector<int>& desired_sizes_in_pixel,
 637     const favicon_base::FaviconResultsCallback& callback) const {
 638   // Before determining whether page_url is an extension url, we must handle
 639   // overrides. This changes urls in |kChromeUIScheme| to extension urls, and
 640   // allows to use ExtensionWebUI::GetFaviconForURL.
 641   GURL url(page_url);
 642 #if defined(ENABLE_EXTENSIONS)
 643   ExtensionWebUI::HandleChromeURLOverride(&url, profile);
 644
 645   // All extensions but the bookmark manager get their favicon from the icons
 646   // part of the manifest.
 647   if (url.SchemeIs(extensions::kExtensionScheme) &&
 648       url.host() != extension_misc::kBookmarkManagerId) {
 649     ExtensionWebUI::GetFaviconForURL(profile, url, callback);
 650     return;
 651   }
 652 #endif
 653
 654   std::vector<favicon_base::FaviconRawBitmapResult>* favicon_bitmap_results =
 655       new std::vector<favicon_base::FaviconRawBitmapResult>();
 656
 657   // Use ui::GetSupportedScaleFactors instead of
 658   // favicon_base::GetFaviconScales() because chrome favicons comes from
 659   // resources.
 660   std::vector<ui::ScaleFactor> resource_scale_factors =
 661       ui::GetSupportedScaleFactors();
 662
 663   std::vector<gfx::Size> candidate_sizes;
 664   for (size_t i = 0; i < resource_scale_factors.size(); ++i) {
 665     float scale = ui::GetScaleForScaleFactor(resource_scale_factors[i]);
 666     // Assume that GetFaviconResourceBytes() returns favicons which are
 667     // |gfx::kFaviconSize| x |gfx::kFaviconSize| DIP.
 668     int candidate_edge_size =
 669         static_cast<int>(gfx::kFaviconSize * scale + 0.5f);
 670     candidate_sizes.push_back(
 671         gfx::Size(candidate_edge_size, candidate_edge_size));
 672   }
 673   std::vector<size_t> selected_indices;
 674   SelectFaviconFrameIndices(
 675       candidate_sizes, desired_sizes_in_pixel, &selected_indices, NULL);
 676   for (size_t i = 0; i < selected_indices.size(); ++i) {
 677     size_t selected_index = selected_indices[i];
 678     ui::ScaleFactor selected_resource_scale =
 679         resource_scale_factors[selected_index];
 680
 681     scoped_refptr<base::RefCountedMemory> bitmap(
 682         GetFaviconResourceBytes(url, selected_resource_scale));
 683     if (bitmap.get() && bitmap->size()) {
 684       favicon_base::FaviconRawBitmapResult bitmap_result;
 685       bitmap_result.bitmap_data = bitmap;
 686       // Leave |bitmap_result|'s icon URL as the default of GURL().
 687       bitmap_result.icon_type = favicon_base::FAVICON;
 688       favicon_bitmap_results->push_back(bitmap_result);
 689
 690       bitmap_result.pixel_size = candidate_sizes[selected_index];
 691     }
 692   }
 693
 694   RunFaviconCallbackAsync(callback, favicon_bitmap_results);
 695 }
 696
 697 // static
 698 ChromeWebUIControllerFactory* ChromeWebUIControllerFactory::GetInstance() {
 699   return Singleton<ChromeWebUIControllerFactory>::get();
 700 }
 701
 702 ChromeWebUIControllerFactory::ChromeWebUIControllerFactory() {
 703 }
 704
 705 ChromeWebUIControllerFactory::~ChromeWebUIControllerFactory() {
 706 }
 707
 708 base::RefCountedMemory* ChromeWebUIControllerFactory::GetFaviconResourceBytes(
 709     const GURL& page_url, ui::ScaleFactor scale_factor) const {
 710 #if !defined(OS_ANDROID)  // Bookmarks are part of NTP on Android.
 711   // The bookmark manager is a chrome extension, so we have to check for it
 712   // before we check for extension scheme.
 713   if (page_url.host() == extension_misc::kBookmarkManagerId)
 714     return BookmarksUI::GetFaviconResourceBytes(scale_factor);
 715
 716   // The extension scheme is handled in GetFaviconForURL.
 717   if (page_url.SchemeIs(extensions::kExtensionScheme)) {
 718     NOTREACHED();
 719     return NULL;
 720   }
 721 #endif
 722
 723   if (!content::HasWebUIScheme(page_url))
 724     return NULL;
 725
 726   if (page_url.host() == chrome::kChromeUIComponentsHost)
 727     return ComponentsUI::GetFaviconResourceBytes(scale_factor);
 728
 729 #if defined(OS_WIN)
 730   if (page_url.host() == chrome::kChromeUIConflictsHost)
 731     return ConflictsUI::GetFaviconResourceBytes(scale_factor);
 732 #endif
 733
 734   if (page_url.host() == chrome::kChromeUICrashesHost)
 735     return CrashesUI::GetFaviconResourceBytes(scale_factor);
 736
 737   if (page_url.host() == chrome::kChromeUIFlagsHost)
 738     return FlagsUI::GetFaviconResourceBytes(scale_factor);
 739
 740   if (page_url.host() == chrome::kChromeUIHistoryHost)
 741     return HistoryUI::GetFaviconResourceBytes(scale_factor);
 742
 743 #if !defined(OS_ANDROID)
 744 #if !defined(OS_CHROMEOS)
 745   // The Apps launcher page is not available on android or ChromeOS.
 746   if (page_url.host() == chrome::kChromeUIAppLauncherPageHost)
 747     return AppLauncherPageUI::GetFaviconResourceBytes(scale_factor);
 748 #endif
 749
 750   // Flash is not available on android.
 751   if (page_url.host() == chrome::kChromeUIFlashHost)
 752     return FlashUI::GetFaviconResourceBytes(scale_factor);
 753
 754   // Android uses the native download manager.
 755   if (page_url.host() == chrome::kChromeUIDownloadsHost)
 756     return DownloadsUI::GetFaviconResourceBytes(scale_factor);
 757
 758   // Android doesn't use the Options pages.
 759   if (page_url.host() == chrome::kChromeUISettingsHost ||
 760       page_url.host() == chrome::kChromeUISettingsFrameHost)
 761     return options::OptionsUI::GetFaviconResourceBytes(scale_factor);
 762
 763 #if defined(ENABLE_EXTENSIONS)
 764   if (page_url.host() == chrome::kChromeUIExtensionsHost ||
 765       page_url.host() == chrome::kChromeUIExtensionsFrameHost)
 766     return extensions::ExtensionsUI::GetFaviconResourceBytes(scale_factor);
 767 #endif
 768
 769   // Android doesn't use the plugins pages.
 770   if (page_url.host() == chrome::kChromeUIPluginsHost)
 771     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 772
 773 #endif
 774
 775   return NULL;
 776 }