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