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/content_settings/host_content_settings_map_factory.h"
  19 #include "chrome/browser/dom_distiller/profile_utils.h"
  20 #include "chrome/browser/download/chrome_download_manager_delegate.h"
  21 #include "chrome/browser/download/download_service.h"
  22 #include "chrome/browser/download/download_service_factory.h"
  23 #include "chrome/browser/io_thread.h"
  24 #include "chrome/browser/net/chrome_url_request_context_getter.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 "components/content_settings/core/browser/host_content_settings_map.h"
  42 #include "components/keyed_service/content/browser_context_dependency_manager.h"
  43 #include "components/proxy_config/pref_proxy_config_tracker.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 (pref_proxy_config_tracker_)
 188     pref_proxy_config_tracker_->DetachFromPrefService();
 189
 190   // Clears any data the network stack contains that may be related to the
 191   // OTR session.
 192   g_browser_process->io_thread()->ChangedToOnTheRecord();
 193 }
 194
 195 void OffTheRecordProfileImpl::InitIoData() {
 196   io_data_.reset(new OffTheRecordProfileIOData::Handle(this));
 197 }
 198
 199 void OffTheRecordProfileImpl::TrackZoomLevelsFromParent() {
 200   DCHECK_NE(INCOGNITO_PROFILE, profile_->GetProfileType());
 201
 202   // Here we only want to use zoom levels stored in the main-context's default
 203   // storage partition. We're not interested in zoom levels in special
 204   // partitions, e.g. those used by WebViewGuests.
 205   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 206   HostZoomMap* parent_host_zoom_map =
 207       HostZoomMap::GetDefaultForBrowserContext(profile_);
 208   host_zoom_map->CopyFrom(parent_host_zoom_map);
 209   // Observe parent profile's HostZoomMap changes so they can also be applied
 210   // to this profile's HostZoomMap.
 211   track_zoom_subscription_ = parent_host_zoom_map->AddZoomLevelChangedCallback(
 212       base::Bind(&OffTheRecordProfileImpl::OnParentZoomLevelChanged,
 213                  base::Unretained(this)));
 214   if (!profile_->GetZoomLevelPrefs())
 215     return;
 216
 217   // Also track changes to the parent profile's default zoom level.
 218   parent_default_zoom_level_subscription_ =
 219       profile_->GetZoomLevelPrefs()->RegisterDefaultZoomLevelCallback(
 220           base::Bind(&OffTheRecordProfileImpl::UpdateDefaultZoomLevel,
 221                      base::Unretained(this)));
 222 }
 223
 224 std::string OffTheRecordProfileImpl::GetProfileUserName() const {
 225   // Incognito profile should not return the username.
 226   return std::string();
 227 }
 228
 229 Profile::ProfileType OffTheRecordProfileImpl::GetProfileType() const {
 230 #if !defined(OS_CHROMEOS)
 231   return profile_->IsGuestSession() ? GUEST_PROFILE : INCOGNITO_PROFILE;
 232 #else
 233   return INCOGNITO_PROFILE;
 234 #endif
 235 }
 236
 237 base::FilePath OffTheRecordProfileImpl::GetPath() const {
 238   return profile_->GetPath();
 239 }
 240
 241 scoped_ptr<content::ZoomLevelDelegate>
 242 OffTheRecordProfileImpl::CreateZoomLevelDelegate(
 243     const base::FilePath& partition_path) {
 244   return make_scoped_ptr(new chrome::ChromeZoomLevelOTRDelegate(
 245       ui_zoom::ZoomEventManager::GetForBrowserContext(this)->GetWeakPtr()));
 246 }
 247
 248 scoped_refptr<base::SequencedTaskRunner>
 249 OffTheRecordProfileImpl::GetIOTaskRunner() {
 250   return profile_->GetIOTaskRunner();
 251 }
 252
 253 bool OffTheRecordProfileImpl::IsOffTheRecord() const {
 254   return true;
 255 }
 256
 257 Profile* OffTheRecordProfileImpl::GetOffTheRecordProfile() {
 258   return this;
 259 }
 260
 261 void OffTheRecordProfileImpl::DestroyOffTheRecordProfile() {
 262   // Suicide is bad!
 263   NOTREACHED();
 264 }
 265
 266 bool OffTheRecordProfileImpl::HasOffTheRecordProfile() {
 267   return true;
 268 }
 269
 270 Profile* OffTheRecordProfileImpl::GetOriginalProfile() {
 271   return profile_;
 272 }
 273
 274 ExtensionSpecialStoragePolicy*
 275     OffTheRecordProfileImpl::GetExtensionSpecialStoragePolicy() {
 276   return GetOriginalProfile()->GetExtensionSpecialStoragePolicy();
 277 }
 278
 279 bool OffTheRecordProfileImpl::IsSupervised() const {
 280   return profile_->IsSupervised();
 281 }
 282
 283 bool OffTheRecordProfileImpl::IsChild() const {
 284   // TODO(treib): If we ever allow incognito for child accounts, evaluate
 285   // whether we want to just return false here.
 286   return profile_->IsChild();
 287 }
 288
 289 bool OffTheRecordProfileImpl::IsLegacySupervised() const {
 290   return profile_->IsLegacySupervised();
 291 }
 292
 293 PrefService* OffTheRecordProfileImpl::GetPrefs() {
 294   return prefs_;
 295 }
 296
 297 const PrefService* OffTheRecordProfileImpl::GetPrefs() const {
 298   return prefs_;
 299 }
 300
 301 PrefService* OffTheRecordProfileImpl::GetOffTheRecordPrefs() {
 302   return prefs_;
 303 }
 304
 305 DownloadManagerDelegate* OffTheRecordProfileImpl::GetDownloadManagerDelegate() {
 306   return DownloadServiceFactory::GetForBrowserContext(this)->
 307       GetDownloadManagerDelegate();
 308 }
 309
 310 net::URLRequestContextGetter* OffTheRecordProfileImpl::GetRequestContext() {
 311   return GetDefaultStoragePartition(this)->GetURLRequestContext();
 312 }
 313
 314 net::URLRequestContextGetter* OffTheRecordProfileImpl::CreateRequestContext(
 315     content::ProtocolHandlerMap* protocol_handlers,
 316     content::URLRequestInterceptorScopedVector request_interceptors) {
 317   return io_data_->CreateMainRequestContextGetter(
 318       protocol_handlers, request_interceptors.Pass()).get();
 319 }
 320
 321 net::URLRequestContextGetter*
 322     OffTheRecordProfileImpl::GetRequestContextForRenderProcess(
 323         int renderer_child_id) {
 324   content::RenderProcessHost* rph = content::RenderProcessHost::FromID(
 325       renderer_child_id);
 326   return rph->GetStoragePartition()->GetURLRequestContext();
 327 }
 328
 329 net::URLRequestContextGetter*
 330     OffTheRecordProfileImpl::GetMediaRequestContext() {
 331   // In OTR mode, media request context is the same as the original one.
 332   return GetRequestContext();
 333 }
 334
 335 net::URLRequestContextGetter*
 336     OffTheRecordProfileImpl::GetMediaRequestContextForRenderProcess(
 337         int renderer_child_id) {
 338   // In OTR mode, media request context is the same as the original one.
 339   return GetRequestContextForRenderProcess(renderer_child_id);
 340 }
 341
 342 net::URLRequestContextGetter*
 343 OffTheRecordProfileImpl::GetMediaRequestContextForStoragePartition(
 344     const base::FilePath& partition_path,
 345     bool in_memory) {
 346   return io_data_->GetIsolatedAppRequestContextGetter(partition_path, in_memory)
 347       .get();
 348 }
 349
 350 net::URLRequestContextGetter*
 351     OffTheRecordProfileImpl::GetRequestContextForExtensions() {
 352   return io_data_->GetExtensionsRequestContextGetter().get();
 353 }
 354
 355 net::URLRequestContextGetter*
 356 OffTheRecordProfileImpl::CreateRequestContextForStoragePartition(
 357     const base::FilePath& partition_path,
 358     bool in_memory,
 359     content::ProtocolHandlerMap* protocol_handlers,
 360     content::URLRequestInterceptorScopedVector request_interceptors) {
 361   return io_data_->CreateIsolatedAppRequestContextGetter(
 362       partition_path,
 363       in_memory,
 364       protocol_handlers,
 365       request_interceptors.Pass()).get();
 366 }
 367
 368 content::ResourceContext* OffTheRecordProfileImpl::GetResourceContext() {
 369   return io_data_->GetResourceContext();
 370 }
 371
 372 net::SSLConfigService* OffTheRecordProfileImpl::GetSSLConfigService() {
 373   return profile_->GetSSLConfigService();
 374 }
 375
 376 HostContentSettingsMap* OffTheRecordProfileImpl::GetHostContentSettingsMap() {
 377   // TODO(peconn): Once HostContentSettingsMapFactory works for TestingProfiles
 378   // remove Profile::GetHostContentSettingsMap and replace all references to it.
 379   // Don't forget to remove the #include "host_content_settings_map_factory"!
 380   return HostContentSettingsMapFactory::GetForProfile(this);
 381 }
 382
 383 content::BrowserPluginGuestManager* OffTheRecordProfileImpl::GetGuestManager() {
 384 #if defined(ENABLE_EXTENSIONS)
 385   return guest_view::GuestViewManager::FromBrowserContext(this);
 386 #else
 387   return NULL;
 388 #endif
 389 }
 390
 391 storage::SpecialStoragePolicy*
 392 OffTheRecordProfileImpl::GetSpecialStoragePolicy() {
 393 #if defined(ENABLE_EXTENSIONS)
 394   return GetExtensionSpecialStoragePolicy();
 395 #else
 396   return NULL;
 397 #endif
 398 }
 399
 400 content::PushMessagingService*
 401 OffTheRecordProfileImpl::GetPushMessagingService() {
 402   // TODO(johnme): Support push messaging in incognito if possible.
 403   return NULL;
 404 }
 405
 406 content::SSLHostStateDelegate*
 407 OffTheRecordProfileImpl::GetSSLHostStateDelegate() {
 408   return ChromeSSLHostStateDelegateFactory::GetForProfile(this);
 409 }
 410
 411 // TODO(mlamouri): we should all these BrowserContext implementation to Profile
 412 // instead of repeating them inside all Profile implementations.
 413 content::PermissionManager* OffTheRecordProfileImpl::GetPermissionManager() {
 414   return PermissionManagerFactory::GetForProfile(this);
 415 }
 416
 417 bool OffTheRecordProfileImpl::IsSameProfile(Profile* profile) {
 418   return (profile == this) || (profile == profile_);
 419 }
 420
 421 Time OffTheRecordProfileImpl::GetStartTime() const {
 422   return start_time_;
 423 }
 424
 425 void OffTheRecordProfileImpl::SetExitType(ExitType exit_type) {
 426 }
 427
 428 base::FilePath OffTheRecordProfileImpl::last_selected_directory() {
 429   const base::FilePath& directory = last_selected_directory_;
 430   if (directory.empty()) {
 431     return profile_->last_selected_directory();
 432   }
 433   return directory;
 434 }
 435
 436 void OffTheRecordProfileImpl::set_last_selected_directory(
 437     const base::FilePath& path) {
 438   last_selected_directory_ = path;
 439 }
 440
 441 bool OffTheRecordProfileImpl::WasCreatedByVersionOrLater(
 442     const std::string& version) {
 443   return profile_->WasCreatedByVersionOrLater(version);
 444 }
 445
 446 Profile::ExitType OffTheRecordProfileImpl::GetLastSessionExitType() {
 447   return profile_->GetLastSessionExitType();
 448 }
 449
 450 #if defined(OS_CHROMEOS)
 451 void OffTheRecordProfileImpl::ChangeAppLocale(const std::string& locale,
 452                                               AppLocaleChangedVia) {
 453 }
 454
 455 void OffTheRecordProfileImpl::OnLogin() {
 456 }
 457
 458 void OffTheRecordProfileImpl::InitChromeOSPreferences() {
 459   // The incognito profile shouldn't have Chrome OS's preferences.
 460   // The preferences are associated with the regular user profile.
 461 }
 462 #endif  // defined(OS_CHROMEOS)
 463
 464 PrefProxyConfigTracker* OffTheRecordProfileImpl::GetProxyConfigTracker() {
 465   if (!pref_proxy_config_tracker_)
 466     pref_proxy_config_tracker_.reset(CreateProxyConfigTracker());
 467   return pref_proxy_config_tracker_.get();
 468 }
 469
 470 chrome_browser_net::Predictor* OffTheRecordProfileImpl::GetNetworkPredictor() {
 471   // We do not store information about websites visited in OTR profiles which
 472   // is necessary for a Predictor, so we do not have a Predictor at all.
 473   return NULL;
 474 }
 475
 476 DevToolsNetworkControllerHandle*
 477 OffTheRecordProfileImpl::GetDevToolsNetworkControllerHandle() {
 478   return io_data_->GetDevToolsNetworkControllerHandle();
 479 }
 480
 481 void OffTheRecordProfileImpl::ClearNetworkingHistorySince(
 482     base::Time time,
 483     const base::Closure& completion) {
 484   // Nothing to do here, our transport security state is read-only.
 485   // Still, fire the callback to indicate we have finished, otherwise the
 486   // BrowsingDataRemover will never be destroyed and the dialog will never be
 487   // closed. We must do this asynchronously in order to avoid reentrancy issues.
 488   if (!completion.is_null()) {
 489     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, completion);
 490   }
 491 }
 492
 493 GURL OffTheRecordProfileImpl::GetHomePage() {
 494   return profile_->GetHomePage();
 495 }
 496
 497 #if defined(OS_CHROMEOS)
 498 // Special case of the OffTheRecordProfileImpl which is used while Guest
 499 // session in CrOS.
 500 class GuestSessionProfile : public OffTheRecordProfileImpl {
 501  public:
 502   explicit GuestSessionProfile(Profile* real_profile)
 503       : OffTheRecordProfileImpl(real_profile) {
 504     set_is_guest_profile(true);
 505   }
 506
 507   ProfileType GetProfileType() const override { return GUEST_PROFILE; }
 508
 509   void InitChromeOSPreferences() override {
 510     chromeos_preferences_.reset(new chromeos::Preferences());
 511     chromeos_preferences_->Init(
 512         this, user_manager::UserManager::Get()->GetActiveUser());
 513   }
 514
 515  private:
 516   // The guest user should be able to customize Chrome OS preferences.
 517   scoped_ptr<chromeos::Preferences> chromeos_preferences_;
 518 };
 519 #endif
 520
 521 Profile* Profile::CreateOffTheRecordProfile() {
 522   OffTheRecordProfileImpl* profile = NULL;
 523 #if defined(OS_CHROMEOS)
 524   if (IsGuestSession())
 525     profile = new GuestSessionProfile(this);
 526 #endif
 527   if (!profile)
 528     profile = new OffTheRecordProfileImpl(this);
 529   profile->Init();
 530   return profile;
 531 }
 532
 533 void OffTheRecordProfileImpl::OnParentZoomLevelChanged(
 534     const HostZoomMap::ZoomLevelChange& change) {
 535   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 536   switch (change.mode) {
 537     case HostZoomMap::ZOOM_CHANGED_TEMPORARY_ZOOM:
 538       return;
 539     case HostZoomMap::ZOOM_CHANGED_FOR_HOST:
 540       host_zoom_map->SetZoomLevelForHost(change.host, change.zoom_level);
 541       return;
 542     case HostZoomMap::ZOOM_CHANGED_FOR_SCHEME_AND_HOST:
 543       host_zoom_map->SetZoomLevelForHostAndScheme(change.scheme,
 544           change.host,
 545           change.zoom_level);
 546       return;
 547     case HostZoomMap::PAGE_SCALE_IS_ONE_CHANGED:
 548       return;
 549   }
 550 }
 551
 552 void OffTheRecordProfileImpl::UpdateDefaultZoomLevel() {
 553   HostZoomMap* host_zoom_map = HostZoomMap::GetDefaultForBrowserContext(this);
 554   double default_zoom_level =
 555       profile_->GetZoomLevelPrefs()->GetDefaultZoomLevelPref();
 556   host_zoom_map->SetDefaultZoomLevel(default_zoom_level);
 557 }
 558
 559 PrefProxyConfigTracker* OffTheRecordProfileImpl::CreateProxyConfigTracker() {
 560 #if defined(OS_CHROMEOS)
 561   if (chromeos::ProfileHelper::IsSigninProfile(this)) {
 562     return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
 563         g_browser_process->local_state());
 564   }
 565 #endif  // defined(OS_CHROMEOS)
 566   return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
 567       GetPrefs(), g_browser_process->local_state());
 568 }