chrome/browser/profiles/off_the_record_profile_impl.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/profiles/off_the_record_profile_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/files/file_path.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/prefs/json_pref_store.h"
  13 #include "base/strings/string_number_conversions.h"
  14 #include "base/strings/string_util.h"
  15 #include "build/build_config.h"
  16 #include "chrome/browser/background/background_contents_service_factory.h"
  17 #include "chrome/browser/browser_process.h"
  18 #include "chrome/browser/dom_distiller/profile_utils.h"
  19 #include "chrome/browser/download/chrome_download_manager_delegate.h"
  20 #include "chrome/browser/download/download_service.h"
  21 #include "chrome/browser/download/download_service_factory.h"
  22 #include "chrome/browser/io_thread.h"
  23 #include "chrome/browser/net/chrome_url_request_context_getter.h"
  24 #include "chrome/browser/net/pref_proxy_config_tracker.h"
  25 #include "chrome/browser/net/proxy_service_factory.h"
  26 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
  27 #include "chrome/browser/plugins/plugin_prefs.h"
  28 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  29 #include "chrome/browser/prefs/pref_service_syncable.h"
  30 #include "chrome/browser/profiles/profile_manager.h"
  31 #include "chrome/browser/ssl/chrome_ssl_host_state_delegate.h"
  32 #include "chrome/browser/ssl/chrome_ssl_host_state_delegate_factory.h"
  33 #include "chrome/browser/themes/theme_service.h"
  34 #include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
  35 #include "chrome/browser/ui/zoom/chrome_zoom_level_otr_delegate.h"
  36 #include "chrome/common/chrome_constants.h"
  37 #include "chrome/common/chrome_paths.h"
  38 #include "chrome/common/chrome_switches.h"
  39 #include "chrome/common/pref_names.h"
  40 #include "chrome/common/render_messages.h"
  41 #include "components/content_settings/core/browser/host_content_settings_map.h"
  42 #include "components/keyed_service/content/browser_context_dependency_manager.h"
  43 #include "components/ui/zoom/zoom_event_manager.h"
  44 #include "components/user_prefs/user_prefs.h"
  45 #include "content/public/browser/browser_thread.h"
  46 #include "content/public/browser/host_zoom_map.h"
  47 #include "content/public/browser/render_process_host.h"
  48 #include "content/public/browser/storage_partition.h"
  49 #include "content/public/browser/url_data_source.h"
  50 #include "content/public/browser/web_contents.h"
  51 #include "net/http/http_server_properties.h"
  52 #include "net/http/transport_security_state.h"
  53 #include "storage/browser/database/database_tracker.h"
  54
  55 #if defined(OS_ANDROID)
  56 #include "chrome/browser/media/protected_media_identifier_permission_context.h"
  57 #include "chrome/browser/media/protected_media_identifier_permission_context_factory.h"
  58 #endif  // defined(OS_ANDROID)
  59
  60 #if defined(OS_ANDROID) || defined(OS_IOS)
  61 #include "base/prefs/scoped_user_pref_update.h"
  62 #include "chrome/browser/prefs/proxy_prefs.h"
  63 #endif  // defined(OS_ANDROID) || defined(OS_IOS)
  64
  65 #if defined(OS_CHROMEOS)
  66 #include "chrome/browser/chromeos/preferences.h"
  67 #include "chrome/browser/chromeos/profiles/profile_helper.h"
  68 #endif
  69
  70 #if defined(ENABLE_CONFIGURATION_POLICY) && !defined(OS_CHROMEOS)
  71 #include "chrome/browser/policy/cloud/user_cloud_policy_manager_factory.h"
  72 #endif
  73
  74 #if defined(ENABLE_EXTENSIONS)
  75 #include "chrome/browser/extensions/extension_service.h"
  76 #include "chrome/browser/extensions/extension_special_storage_policy.h"
  77 #include "extensions/browser/api/web_request/web_request_api.h"
  78 #include "extensions/browser/extension_system.h"
  79 #include "extensions/browser/guest_view/guest_view_manager.h"
  80 #include "extensions/common/extension.h"
  81 #endif
  82
  83 #if defined(ENABLE_SUPERVISED_USERS)
  84 #include "chrome/browser/content_settings/content_settings_supervised_provider.h"
  85 #include "chrome/browser/supervised_user/supervised_user_settings_service.h"
  86 #include "chrome/browser/supervised_user/supervised_user_settings_service_factory.h"
  87 #endif
  88
  89 using content::BrowserThread;
  90 using content::DownloadManagerDelegate;
  91 using content::HostZoomMap;
  92
  93 #if defined(ENABLE_EXTENSIONS)
  94 namespace {
  95
  96 void NotifyOTRProfileCreatedOnIOThread(void* original_profile,
  97                                        void* otr_profile) {
  98   ExtensionWebRequestEventRouter::GetInstance()->OnOTRBrowserContextCreated(
  99       original_profile, otr_profile);
 100 }
 101
 102 void NotifyOTRProfileDestroyedOnIOThread(void* original_profile,
 103                                          void* otr_profile) {
 104   ExtensionWebRequestEventRouter::GetInstance()->OnOTRBrowserContextDestroyed(
 105       original_profile, otr_profile);
 106 }
 107
 108 }  // namespace
 109 #endif
 110
 111 OffTheRecordProfileImpl::OffTheRecordProfileImpl(Profile* real_profile)
 112     : profile_(real_profile),
 113       prefs_(PrefServiceSyncable::IncognitoFromProfile(real_profile)),
 114       start_time_(Time::Now()) {
 115   // Register on BrowserContext.
 116   user_prefs::UserPrefs::Set(this, prefs_);
 117 }
 118
 119 void OffTheRecordProfileImpl::Init() {
 120   // The construction of OffTheRecordProfileIOData::Handle needs the profile
 121   // type returned by this->GetProfileType().  Since GetProfileType() is a
 122   // virtual member function, we cannot call the function defined in the most
 123   // derived class (e.g. GuestSessionProfile) until a ctor finishes.  Thus,
 124   // we have to instantiate OffTheRecordProfileIOData::Handle here after a ctor.
 125   InitIoData();
 126
 127 #if defined(ENABLE_CONFIGURATION_POLICY) && !defined(OS_CHROMEOS)
 128   // Because UserCloudPolicyManager is in a component, it cannot access
 129   // GetOriginalProfile. Instead, we have to inject this relation here.
 130   policy::UserCloudPolicyManagerFactory::RegisterForOffTheRecordBrowserContext(
 131       this->GetOriginalProfile(), this);
 132 #endif
 133
 134   BrowserContextDependencyManager::GetInstance()->CreateBrowserContextServices(
 135       this);
 136
 137   set_is_guest_profile(
 138       profile_->GetPath() == ProfileManager::GetGuestProfilePath());
 139
 140   // Guest profiles may always be OTR. Check IncognitoModePrefs otherwise.
 141   DCHECK(profile_->IsGuestSession() ||
 142          IncognitoModePrefs::GetAvailability(profile_->GetPrefs()) !=
 143              IncognitoModePrefs::DISABLED);
 144
 145   // TODO(oshima): Remove the need to eagerly initialize the request context
 146   // getter. chromeos::OnlineAttempt is illegally trying to access this
 147   // Profile member from a thread other than the UI thread, so we need to
 148   // prevent a race.
 149 #if defined(OS_CHROMEOS)
 150   GetRequestContext();
 151 #endif  // defined(OS_CHROMEOS)
 152
 153   TrackZoomLevelsFromParent();
 154
 155 #if defined(ENABLE_PLUGINS)
 156   ChromePluginServiceFilter::GetInstance()->RegisterResourceContext(
 157       PluginPrefs::GetForProfile(this).get(),
 158       io_data_->GetResourceContextNoInit());
 159 #endif
 160
 161 #if defined(ENABLE_EXTENSIONS)
 162   // Make the chrome//extension-icon/ resource available.
 163   extensions::ExtensionIconSource* icon_source =
 164       new extensions::ExtensionIconSource(profile_);
 165   content::URLDataSource::Add(this, icon_source);
 166
 167   BrowserThread::PostTask(
 168       BrowserThread::IO, FROM_HERE,
 169       base::Bind(&NotifyOTRProfileCreatedOnIOThread, profile_, this));
 170 #endif
 171
 172   // The DomDistillerViewerSource is not a normal WebUI so it must be registered
 173   // as a URLDataSource early.
 174   RegisterDomDistillerViewerSource(this);
 175 }
 176
 177 OffTheRecordProfileImpl::~OffTheRecordProfileImpl() {
 178   MaybeSendDestroyedNotification();
 179
 180 #if defined(ENABLE_PLUGINS)
 181   ChromePluginServiceFilter::GetInstance()->UnregisterResourceContext(
 182       io_data_->GetResourceContextNoInit());
 183 #endif
 184
 185   BrowserContextDependencyManager::GetInstance()->DestroyBrowserContextServices(
 186       this);
 187
 188 #if defined(ENABLE_EXTENSIONS)
 189   BrowserThread::PostTask(
 190       BrowserThread::IO, FROM_HERE,
 191       base::Bind(&NotifyOTRProfileDestroyedOnIOThread, profile_, this));
 192 #endif
 193
 194   if (host_content_settings_map_.get())
 195     host_content_settings_map_->ShutdownOnUIThread();
 196
 197   if (pref_proxy_config_tracker_)
 198     pref_proxy_config_tracker_->DetachFromPrefService();
 199
 200   // Clears any data the network stack contains that may be related to the
 201   // OTR session.
 202   g_browser_process->io_thread()->ChangedToOnTheRecord();
 203 }
 204
 205 void OffTheRecordProfileImpl::InitIoData() {
 206   io_data_.reset(new OffTheRecordProfileIOData::Handle(this));
 207 }
 208
 209 void OffTheRecordProfileImpl::TrackZoomLevelsFromParent() {
 210   DCHECK_NE(INCOGNITO_PROFILE, profile_->GetProfileType());
 211
 212   // Here we only want to use zoom levels stored in the main-context's default
 213   // storage partition. We're not interested in zoom levels in special
 214   // partitions, e.g. those used by WebViewGuests.
 215   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 216   HostZoomMap* parent_host_zoom_map =
 217       HostZoomMap::GetDefaultForBrowserContext(profile_);
 218   host_zoom_map->CopyFrom(parent_host_zoom_map);
 219   // Observe parent profile's HostZoomMap changes so they can also be applied
 220   // to this profile's HostZoomMap.
 221   track_zoom_subscription_ = parent_host_zoom_map->AddZoomLevelChangedCallback(
 222       base::Bind(&OffTheRecordProfileImpl::OnParentZoomLevelChanged,
 223                  base::Unretained(this)));
 224   if (!profile_->GetZoomLevelPrefs())
 225     return;
 226
 227   // Also track changes to the parent profile's default zoom level.
 228   parent_default_zoom_level_subscription_ =
 229       profile_->GetZoomLevelPrefs()->RegisterDefaultZoomLevelCallback(
 230           base::Bind(&OffTheRecordProfileImpl::UpdateDefaultZoomLevel,
 231                      base::Unretained(this)));
 232 }
 233
 234 std::string OffTheRecordProfileImpl::GetProfileUserName() const {
 235   // Incognito profile should not return the username.
 236   return std::string();
 237 }
 238
 239 Profile::ProfileType OffTheRecordProfileImpl::GetProfileType() const {
 240 #if !defined(OS_CHROMEOS)
 241   return profile_->IsGuestSession() ? GUEST_PROFILE : INCOGNITO_PROFILE;
 242 #else
 243   return INCOGNITO_PROFILE;
 244 #endif
 245 }
 246
 247 base::FilePath OffTheRecordProfileImpl::GetPath() const {
 248   return profile_->GetPath();
 249 }
 250
 251 scoped_ptr<content::ZoomLevelDelegate>
 252 OffTheRecordProfileImpl::CreateZoomLevelDelegate(
 253     const base::FilePath& partition_path) {
 254   return make_scoped_ptr(new chrome::ChromeZoomLevelOTRDelegate(
 255       ui_zoom::ZoomEventManager::GetForBrowserContext(this)->GetWeakPtr()));
 256 }
 257
 258 scoped_refptr<base::SequencedTaskRunner>
 259 OffTheRecordProfileImpl::GetIOTaskRunner() {
 260   return profile_->GetIOTaskRunner();
 261 }
 262
 263 bool OffTheRecordProfileImpl::IsOffTheRecord() const {
 264   return true;
 265 }
 266
 267 Profile* OffTheRecordProfileImpl::GetOffTheRecordProfile() {
 268   return this;
 269 }
 270
 271 void OffTheRecordProfileImpl::DestroyOffTheRecordProfile() {
 272   // Suicide is bad!
 273   NOTREACHED();
 274 }
 275
 276 bool OffTheRecordProfileImpl::HasOffTheRecordProfile() {
 277   return true;
 278 }
 279
 280 Profile* OffTheRecordProfileImpl::GetOriginalProfile() {
 281   return profile_;
 282 }
 283
 284 ExtensionSpecialStoragePolicy*
 285     OffTheRecordProfileImpl::GetExtensionSpecialStoragePolicy() {
 286   return GetOriginalProfile()->GetExtensionSpecialStoragePolicy();
 287 }
 288
 289 bool OffTheRecordProfileImpl::IsSupervised() {
 290   return GetOriginalProfile()->IsSupervised();
 291 }
 292
 293 bool OffTheRecordProfileImpl::IsChild() {
 294   // TODO(treib): If we ever allow incognito for child accounts, evaluate
 295   // whether we want to just return false here.
 296   return GetOriginalProfile()->IsChild();
 297 }
 298
 299 bool OffTheRecordProfileImpl::IsLegacySupervised() {
 300   return GetOriginalProfile()->IsLegacySupervised();
 301 }
 302
 303 PrefService* OffTheRecordProfileImpl::GetPrefs() {
 304   return prefs_;
 305 }
 306
 307 const PrefService* OffTheRecordProfileImpl::GetPrefs() const {
 308   return prefs_;
 309 }
 310
 311 PrefService* OffTheRecordProfileImpl::GetOffTheRecordPrefs() {
 312   return prefs_;
 313 }
 314
 315 DownloadManagerDelegate* OffTheRecordProfileImpl::GetDownloadManagerDelegate() {
 316   return DownloadServiceFactory::GetForBrowserContext(this)->
 317       GetDownloadManagerDelegate();
 318 }
 319
 320 net::URLRequestContextGetter* OffTheRecordProfileImpl::GetRequestContext() {
 321   return GetDefaultStoragePartition(this)->GetURLRequestContext();
 322 }
 323
 324 net::URLRequestContextGetter* OffTheRecordProfileImpl::CreateRequestContext(
 325     content::ProtocolHandlerMap* protocol_handlers,
 326     content::URLRequestInterceptorScopedVector request_interceptors) {
 327   return io_data_->CreateMainRequestContextGetter(
 328       protocol_handlers, request_interceptors.Pass()).get();
 329 }
 330
 331 net::URLRequestContextGetter*
 332     OffTheRecordProfileImpl::GetRequestContextForRenderProcess(
 333         int renderer_child_id) {
 334   content::RenderProcessHost* rph = content::RenderProcessHost::FromID(
 335       renderer_child_id);
 336   return rph->GetStoragePartition()->GetURLRequestContext();
 337 }
 338
 339 net::URLRequestContextGetter*
 340     OffTheRecordProfileImpl::GetMediaRequestContext() {
 341   // In OTR mode, media request context is the same as the original one.
 342   return GetRequestContext();
 343 }
 344
 345 net::URLRequestContextGetter*
 346     OffTheRecordProfileImpl::GetMediaRequestContextForRenderProcess(
 347         int renderer_child_id) {
 348   // In OTR mode, media request context is the same as the original one.
 349   return GetRequestContextForRenderProcess(renderer_child_id);
 350 }
 351
 352 net::URLRequestContextGetter*
 353 OffTheRecordProfileImpl::GetMediaRequestContextForStoragePartition(
 354     const base::FilePath& partition_path,
 355     bool in_memory) {
 356   return io_data_->GetIsolatedAppRequestContextGetter(partition_path, in_memory)
 357       .get();
 358 }
 359
 360 net::URLRequestContextGetter*
 361     OffTheRecordProfileImpl::GetRequestContextForExtensions() {
 362   return io_data_->GetExtensionsRequestContextGetter().get();
 363 }
 364
 365 net::URLRequestContextGetter*
 366 OffTheRecordProfileImpl::CreateRequestContextForStoragePartition(
 367     const base::FilePath& partition_path,
 368     bool in_memory,
 369     content::ProtocolHandlerMap* protocol_handlers,
 370     content::URLRequestInterceptorScopedVector request_interceptors) {
 371   return io_data_->CreateIsolatedAppRequestContextGetter(
 372       partition_path,
 373       in_memory,
 374       protocol_handlers,
 375       request_interceptors.Pass()).get();
 376 }
 377
 378 content::ResourceContext* OffTheRecordProfileImpl::GetResourceContext() {
 379   return io_data_->GetResourceContext();
 380 }
 381
 382 net::SSLConfigService* OffTheRecordProfileImpl::GetSSLConfigService() {
 383   return profile_->GetSSLConfigService();
 384 }
 385
 386 HostContentSettingsMap* OffTheRecordProfileImpl::GetHostContentSettingsMap() {
 387   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 388   // Retrieve the host content settings map of the parent profile in order to
 389   // ensure the preferences have been migrated.
 390   profile_->GetHostContentSettingsMap();
 391   if (!host_content_settings_map_.get()) {
 392     host_content_settings_map_ = new HostContentSettingsMap(GetPrefs(), true);
 393 #if defined(ENABLE_EXTENSIONS)
 394     ExtensionService* extension_service =
 395         extensions::ExtensionSystem::Get(this)->extension_service();
 396     if (extension_service) {
 397       extension_service->RegisterContentSettings(
 398           host_content_settings_map_.get());
 399     }
 400 #endif
 401 #if defined(ENABLE_SUPERVISED_USERS)
 402     SupervisedUserSettingsService* supervised_service =
 403         SupervisedUserSettingsServiceFactory::GetForProfile(this);
 404     scoped_ptr<content_settings::SupervisedProvider> supervised_provider(
 405         new content_settings::SupervisedProvider(supervised_service));
 406     host_content_settings_map_->RegisterProvider(
 407         HostContentSettingsMap::SUPERVISED_PROVIDER,
 408         supervised_provider.Pass());
 409 #endif
 410   }
 411   return host_content_settings_map_.get();
 412 }
 413
 414 content::BrowserPluginGuestManager* OffTheRecordProfileImpl::GetGuestManager() {
 415 #if defined(ENABLE_EXTENSIONS)
 416   return extensions::GuestViewManager::FromBrowserContext(this);
 417 #else
 418   return NULL;
 419 #endif
 420 }
 421
 422 storage::SpecialStoragePolicy*
 423 OffTheRecordProfileImpl::GetSpecialStoragePolicy() {
 424 #if defined(ENABLE_EXTENSIONS)
 425   return GetExtensionSpecialStoragePolicy();
 426 #else
 427   return NULL;
 428 #endif
 429 }
 430
 431 content::PushMessagingService*
 432 OffTheRecordProfileImpl::GetPushMessagingService() {
 433   // TODO(johnme): Support push messaging in incognito if possible.
 434   return NULL;
 435 }
 436
 437 content::SSLHostStateDelegate*
 438 OffTheRecordProfileImpl::GetSSLHostStateDelegate() {
 439   return ChromeSSLHostStateDelegateFactory::GetForProfile(this);
 440 }
 441
 442 bool OffTheRecordProfileImpl::IsSameProfile(Profile* profile) {
 443   return (profile == this) || (profile == profile_);
 444 }
 445
 446 Time OffTheRecordProfileImpl::GetStartTime() const {
 447   return start_time_;
 448 }
 449
 450 void OffTheRecordProfileImpl::SetExitType(ExitType exit_type) {
 451 }
 452
 453 base::FilePath OffTheRecordProfileImpl::last_selected_directory() {
 454   const base::FilePath& directory = last_selected_directory_;
 455   if (directory.empty()) {
 456     return profile_->last_selected_directory();
 457   }
 458   return directory;
 459 }
 460
 461 void OffTheRecordProfileImpl::set_last_selected_directory(
 462     const base::FilePath& path) {
 463   last_selected_directory_ = path;
 464 }
 465
 466 bool OffTheRecordProfileImpl::WasCreatedByVersionOrLater(
 467     const std::string& version) {
 468   return profile_->WasCreatedByVersionOrLater(version);
 469 }
 470
 471 Profile::ExitType OffTheRecordProfileImpl::GetLastSessionExitType() {
 472   return profile_->GetLastSessionExitType();
 473 }
 474
 475 #if defined(OS_CHROMEOS)
 476 void OffTheRecordProfileImpl::ChangeAppLocale(const std::string& locale,
 477                                               AppLocaleChangedVia) {
 478 }
 479
 480 void OffTheRecordProfileImpl::OnLogin() {
 481 }
 482
 483 void OffTheRecordProfileImpl::InitChromeOSPreferences() {
 484   // The incognito profile shouldn't have Chrome OS's preferences.
 485   // The preferences are associated with the regular user profile.
 486 }
 487 #endif  // defined(OS_CHROMEOS)
 488
 489 PrefProxyConfigTracker* OffTheRecordProfileImpl::GetProxyConfigTracker() {
 490   if (!pref_proxy_config_tracker_)
 491     pref_proxy_config_tracker_.reset(CreateProxyConfigTracker());
 492   return pref_proxy_config_tracker_.get();
 493 }
 494
 495 chrome_browser_net::Predictor* OffTheRecordProfileImpl::GetNetworkPredictor() {
 496   // We do not store information about websites visited in OTR profiles which
 497   // is necessary for a Predictor, so we do not have a Predictor at all.
 498   return NULL;
 499 }
 500
 501 DevToolsNetworkController*
 502 OffTheRecordProfileImpl::GetDevToolsNetworkController() {
 503   return io_data_->GetDevToolsNetworkController();
 504 }
 505
 506 void OffTheRecordProfileImpl::ClearNetworkingHistorySince(
 507     base::Time time,
 508     const base::Closure& completion) {
 509   // Nothing to do here, our transport security state is read-only.
 510   // Still, fire the callback to indicate we have finished, otherwise the
 511   // BrowsingDataRemover will never be destroyed and the dialog will never be
 512   // closed. We must do this asynchronously in order to avoid reentrancy issues.
 513   if (!completion.is_null()) {
 514     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, completion);
 515   }
 516 }
 517
 518 GURL OffTheRecordProfileImpl::GetHomePage() {
 519   return profile_->GetHomePage();
 520 }
 521
 522 #if defined(OS_CHROMEOS)
 523 // Special case of the OffTheRecordProfileImpl which is used while Guest
 524 // session in CrOS.
 525 class GuestSessionProfile : public OffTheRecordProfileImpl {
 526  public:
 527   explicit GuestSessionProfile(Profile* real_profile)
 528       : OffTheRecordProfileImpl(real_profile) {
 529     set_is_guest_profile(true);
 530   }
 531
 532   ProfileType GetProfileType() const override { return GUEST_PROFILE; }
 533
 534   void InitChromeOSPreferences() override {
 535     chromeos_preferences_.reset(new chromeos::Preferences());
 536     chromeos_preferences_->Init(
 537         this, user_manager::UserManager::Get()->GetActiveUser());
 538   }
 539
 540  private:
 541   // The guest user should be able to customize Chrome OS preferences.
 542   scoped_ptr<chromeos::Preferences> chromeos_preferences_;
 543 };
 544 #endif
 545
 546 Profile* Profile::CreateOffTheRecordProfile() {
 547   OffTheRecordProfileImpl* profile = NULL;
 548 #if defined(OS_CHROMEOS)
 549   if (IsGuestSession())
 550     profile = new GuestSessionProfile(this);
 551 #endif
 552   if (!profile)
 553     profile = new OffTheRecordProfileImpl(this);
 554   profile->Init();
 555   return profile;
 556 }
 557
 558 void OffTheRecordProfileImpl::OnParentZoomLevelChanged(
 559     const HostZoomMap::ZoomLevelChange& change) {
 560   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 561   switch (change.mode) {
 562     case HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM:
 563       return;
 564     case HostZoomMap::ZOOM_CHANGED_FOR_HOST:
 565       host_zoom_map->SetZoomLevelForHost(change.host, change.zoom_level);
 566       return;
 567     case HostZoomMap::ZOOM_CHANGED_FOR_SCHEME_AND_HOST:
 568       host_zoom_map->SetZoomLevelForHostAndScheme(change.scheme,
 569           change.host,
 570           change.zoom_level);
 571       return;
 572     case HostZoomMap::PAGE_SCALE_IS_ONE_CHANGED:
 573       return;
 574   }
 575 }
 576
 577 void OffTheRecordProfileImpl::UpdateDefaultZoomLevel() {
 578   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 579   double default_zoom_level =
 580       profile_->GetZoomLevelPrefs()->GetDefaultZoomLevelPref();
 581   host_zoom_map->SetDefaultZoomLevel(default_zoom_level);
 582 }
 583
 584 PrefProxyConfigTracker* OffTheRecordProfileImpl::CreateProxyConfigTracker() {
 585 #if defined(OS_CHROMEOS)
 586   if (chromeos::ProfileHelper::IsSigninProfile(this)) {
 587     return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
 588         g_browser_process->local_state());
 589   }
 590 #endif  // defined(OS_CHROMEOS)
 591   return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
 592       GetPrefs(), g_browser_process->local_state());
 593 }