chrome/browser/browser_process_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/browser_process_impl.h"
   6
   7 #include <algorithm>
   8 #include <map>
   9 #include <vector>
  10
  11 #include "base/atomic_ref_count.h"
  12 #include "base/bind.h"
  13 #include "base/bind_helpers.h"
  14 #include "base/command_line.h"
  15 #include "base/debug/alias.h"
  16 #include "base/debug/leak_annotations.h"
  17 #include "base/files/file_path.h"
  18 #include "base/metrics/field_trial.h"
  19 #include "base/metrics/histogram_macros.h"
  20 #include "base/path_service.h"
  21 #include "base/prefs/json_pref_store.h"
  22 #include "base/prefs/pref_registry_simple.h"
  23 #include "base/prefs/pref_service.h"
  24 #include "base/synchronization/waitable_event.h"
  25 #include "base/threading/thread.h"
  26 #include "base/threading/thread_restrictions.h"
  27 #include "base/time/default_tick_clock.h"
  28 #include "base/trace_event/trace_event.h"
  29 #include "chrome/browser/chrome_browser_main.h"
  30 #include "chrome/browser/chrome_child_process_watcher.h"
  31 #include "chrome/browser/chrome_content_browser_client.h"
  32 #include "chrome/browser/chrome_notification_types.h"
  33 #include "chrome/browser/component_updater/chrome_component_updater_configurator.h"
  34 #include "chrome/browser/component_updater/supervised_user_whitelist_installer.h"
  35 #include "chrome/browser/defaults.h"
  36 #include "chrome/browser/devtools/remote_debugging_server.h"
  37 #include "chrome/browser/download/download_request_limiter.h"
  38 #include "chrome/browser/download/download_status_updater.h"
  39 #include "chrome/browser/first_run/upgrade_util.h"
  40 #include "chrome/browser/gpu/gl_string_manager.h"
  41 #include "chrome/browser/gpu/gpu_mode_manager.h"
  42 #include "chrome/browser/icon_manager.h"
  43 #include "chrome/browser/intranet_redirect_detector.h"
  44 #include "chrome/browser/io_thread.h"
  45 #include "chrome/browser/lifetime/application_lifetime.h"
  46 #include "chrome/browser/metrics/metrics_services_manager.h"
  47 #include "chrome/browser/metrics/thread_watcher.h"
  48 #include "chrome/browser/net/chrome_net_log.h"
  49 #include "chrome/browser/net/crl_set_fetcher.h"
  50 #include "chrome/browser/notifications/notification_ui_manager.h"
  51 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
  52 #include "chrome/browser/plugins/plugin_finder.h"
  53 #include "chrome/browser/prefs/browser_prefs.h"
  54 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  55 #include "chrome/browser/printing/background_printing_manager.h"
  56 #include "chrome/browser/printing/print_job_manager.h"
  57 #include "chrome/browser/printing/print_preview_dialog_controller.h"
  58 #include "chrome/browser/profiles/profile_manager.h"
  59 #include "chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h"
  60 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
  61 #include "chrome/browser/shell_integration.h"
  62 #include "chrome/browser/status_icons/status_tray.h"
  63 #include "chrome/browser/ui/browser_dialogs.h"
  64 #include "chrome/browser/ui/browser_finder.h"
  65 #include "chrome/browser/ui/user_manager.h"
  66 #include "chrome/browser/update_client/chrome_update_query_params_delegate.h"
  67 #include "chrome/browser/web_resource/promo_resource_service.h"
  68 #include "chrome/common/chrome_constants.h"
  69 #include "chrome/common/chrome_paths.h"
  70 #include "chrome/common/chrome_switches.h"
  71 #include "chrome/common/extensions/chrome_extensions_client.h"
  72 #include "chrome/common/pref_names.h"
  73 #include "chrome/common/switch_utils.h"
  74 #include "chrome/common/url_constants.h"
  75 #include "chrome/installer/util/google_update_constants.h"
  76 #include "chrome/installer/util/google_update_settings.h"
  77 #include "components/component_updater/component_updater_service.h"
  78 #include "components/gcm_driver/gcm_driver.h"
  79 #include "components/metrics/metrics_service.h"
  80 #include "components/network_time/network_time_tracker.h"
  81 #include "components/policy/core/common/policy_service.h"
  82 #include "components/signin/core/common/profile_management_switches.h"
  83 #include "components/translate/core/browser/translate_download_manager.h"
  84 #include "components/update_client/update_query_params.h"
  85 #include "components/web_resource/web_resource_pref_names.h"
  86 #include "content/public/browser/browser_thread.h"
  87 #include "content/public/browser/child_process_security_policy.h"
  88 #include "content/public/browser/notification_details.h"
  89 #include "content/public/browser/plugin_service.h"
  90 #include "content/public/browser/render_process_host.h"
  91 #include "content/public/browser/resource_dispatcher_host.h"
  92 #include "content/public/browser/service_worker_context.h"
  93 #include "content/public/browser/storage_partition.h"
  94 #include "extensions/common/constants.h"
  95 #include "net/socket/client_socket_pool_manager.h"
  96 #include "net/url_request/url_request_context_getter.h"
  97 #include "ui/base/idle/idle.h"
  98 #include "ui/base/l10n/l10n_util.h"
  99 #include "ui/message_center/message_center.h"
 100
 101 #if defined(OS_WIN)
 102 #include "base/win/windows_version.h"
 103 #include "ui/views/focus/view_storage.h"
 104 #elif defined(OS_MACOSX)
 105 #include "chrome/browser/chrome_browser_main_mac.h"
 106 #endif
 107
 108 #if !defined(OS_ANDROID)
 109 #include "chrome/browser/chrome_device_client.h"
 110 #include "chrome/browser/services/gcm/gcm_desktop_utils.h"
 111 #include "components/gcm_driver/gcm_client_factory.h"
 112 #endif
 113
 114 #if defined(USE_AURA)
 115 #include "ui/aura/env.h"
 116 #endif
 117
 118 #if defined(ENABLE_BACKGROUND)
 119 #include "chrome/browser/background/background_mode_manager.h"
 120 #endif
 121
 122 #if defined(ENABLE_CONFIGURATION_POLICY)
 123 #include "components/policy/core/browser/browser_policy_connector.h"
 124 #else
 125 #include "components/policy/core/common/policy_service_stub.h"
 126 #endif  // defined(ENABLE_CONFIGURATION_POLICY)
 127
 128 #if defined(ENABLE_EXTENSIONS)
 129 #include "chrome/browser/extensions/chrome_extensions_browser_client.h"
 130 #include "chrome/browser/extensions/event_router_forwarder.h"
 131 #include "chrome/browser/extensions/extension_renderer_state.h"
 132 #include "chrome/browser/media_galleries/media_file_system_registry.h"
 133 #include "chrome/browser/ui/apps/chrome_app_window_client.h"
 134 #include "components/storage_monitor/storage_monitor.h"
 135 #include "extensions/common/extension_l10n_util.h"
 136 #endif
 137
 138 #if !defined(DISABLE_NACL)
 139 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 140 #endif
 141
 142 #if defined(ENABLE_PLUGIN_INSTALLATION)
 143 #include "chrome/browser/plugins/plugins_resource_service.h"
 144 #endif
 145
 146 #if defined(ENABLE_WEBRTC)
 147 #include "chrome/browser/media/webrtc_log_uploader.h"
 148 #endif
 149
 150 #if defined(OS_CHROMEOS)
 151 #include "chrome/browser/memory/oom_priority_manager.h"
 152 #endif
 153
 154 #if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
 155 // How often to check if the persistent instance of Chrome needs to restart
 156 // to install an update.
 157 static const int kUpdateCheckIntervalHours = 6;
 158 #endif
 159
 160 #if defined(USE_X11) || defined(OS_WIN) || defined(USE_OZONE)
 161 // How long to wait for the File thread to complete during EndSession, on Linux
 162 // and Windows. We have a timeout here because we're unable to run the UI
 163 // messageloop and there's some deadlock risk. Our only option is to exit
 164 // anyway.
 165 static const int kEndSessionTimeoutSeconds = 10;
 166 #endif
 167
 168 using content::BrowserThread;
 169 using content::ChildProcessSecurityPolicy;
 170 using content::PluginService;
 171 using content::ResourceDispatcherHost;
 172
 173 BrowserProcessImpl::BrowserProcessImpl(
 174     base::SequencedTaskRunner* local_state_task_runner,
 175     const base::CommandLine& command_line)
 176     : created_watchdog_thread_(false),
 177       created_browser_policy_connector_(false),
 178       created_profile_manager_(false),
 179       created_local_state_(false),
 180       created_icon_manager_(false),
 181       created_notification_ui_manager_(false),
 182       created_safe_browsing_service_(false),
 183       module_ref_count_(0),
 184       did_start_(false),
 185       download_status_updater_(new DownloadStatusUpdater),
 186       local_state_task_runner_(local_state_task_runner) {
 187   g_browser_process = this;
 188   platform_part_.reset(new BrowserProcessPlatformPart());
 189
 190 #if defined(ENABLE_PRINTING)
 191   // Must be created after the NotificationService.
 192   print_job_manager_.reset(new printing::PrintJobManager);
 193 #endif
 194
 195   net_log_.reset(new ChromeNetLog);
 196
 197   ChildProcessSecurityPolicy::GetInstance()->RegisterWebSafeScheme(
 198       extensions::kExtensionScheme);
 199   ChildProcessSecurityPolicy::GetInstance()->RegisterWebSafeScheme(
 200       extensions::kExtensionResourceScheme);
 201   ChildProcessSecurityPolicy::GetInstance()->RegisterWebSafeScheme(
 202       chrome::kChromeSearchScheme);
 203
 204 #if defined(OS_MACOSX)
 205   ui::InitIdleMonitor();
 206 #endif
 207
 208 #if !defined(OS_ANDROID)
 209   device_client_.reset(new ChromeDeviceClient);
 210 #endif
 211
 212 #if defined(ENABLE_EXTENSIONS)
 213   // Athena sets its own instance during Athena's init process.
 214   extensions::AppWindowClient::Set(ChromeAppWindowClient::GetInstance());
 215
 216   extension_event_router_forwarder_ = new extensions::EventRouterForwarder;
 217   ExtensionRendererState::GetInstance()->Init();
 218
 219   extensions::ExtensionsClient::Set(
 220       extensions::ChromeExtensionsClient::GetInstance());
 221
 222   extensions_browser_client_.reset(
 223       new extensions::ChromeExtensionsBrowserClient);
 224   extensions::ExtensionsBrowserClient::Set(extensions_browser_client_.get());
 225 #endif
 226
 227   message_center::MessageCenter::Initialize();
 228
 229   update_client::UpdateQueryParams::SetDelegate(
 230       ChromeUpdateQueryParamsDelegate::GetInstance());
 231 }
 232
 233 BrowserProcessImpl::~BrowserProcessImpl() {
 234   tracked_objects::ThreadData::EnsureCleanupWasCalled(4);
 235
 236   g_browser_process = NULL;
 237 }
 238
 239 void BrowserProcessImpl::StartTearDown() {
 240     TRACE_EVENT0("shutdown", "BrowserProcessImpl::StartTearDown");
 241   // We need to destroy the MetricsServicesManager, IntranetRedirectDetector,
 242   // PromoResourceService, and SafeBrowsing ClientSideDetectionService (owned by
 243   // the SafeBrowsingService) before the io_thread_ gets destroyed, since their
 244   // destructors can call the URLFetcher destructor, which does a
 245   // PostDelayedTask operation on the IO thread. (The IO thread will handle that
 246   // URLFetcher operation before going away.)
 247   metrics_services_manager_.reset();
 248   intranet_redirect_detector_.reset();
 249 #if defined(SAFE_BROWSING_SERVICE)
 250   if (safe_browsing_service_.get())
 251     safe_browsing_service()->ShutDown();
 252 #endif
 253 #if defined(ENABLE_PLUGIN_INSTALLATION)
 254   plugins_resource_service_.reset();
 255 #endif
 256
 257   // Need to clear the desktop notification balloons before the io_thread_ and
 258   // before the profiles, since if there are any still showing we will access
 259   // those things during teardown.
 260   notification_ui_manager_.reset();
 261
 262   // The SupervisedUserWhitelistInstaller observes the ProfileInfoCache, so it
 263   // needs to be shut down before the ProfileManager.
 264   supervised_user_whitelist_installer_.reset();
 265
 266 #if !defined(OS_ANDROID)
 267   // Debugger must be cleaned up before ProfileManager.
 268   remote_debugging_server_.reset();
 269 #endif
 270
 271   // Need to clear profiles (download managers) before the io_thread_.
 272   {
 273     TRACE_EVENT0("shutdown",
 274                  "BrowserProcessImpl::StartTearDown:ProfileManager");
 275     // The desktop User Manager needs to be closed before the guest profile
 276     // can be destroyed.
 277     if (switches::IsNewAvatarMenu())
 278       UserManager::Hide();
 279     profile_manager_.reset();
 280   }
 281
 282   // PromoResourceService must be destroyed after the keyed services and before
 283   // the IO thread.
 284   promo_resource_service_.reset();
 285
 286   child_process_watcher_.reset();
 287
 288 #if defined(ENABLE_EXTENSIONS)
 289   ExtensionRendererState::GetInstance()->Shutdown();
 290
 291   media_file_system_registry_.reset();
 292   // Remove the global instance of the Storage Monitor now. Otherwise the
 293   // FILE thread would be gone when we try to release it in the dtor and
 294   // Valgrind would report a leak on almost every single browser_test.
 295   // TODO(gbillock): Make this unnecessary.
 296   storage_monitor::StorageMonitor::Destroy();
 297 #endif
 298
 299   message_center::MessageCenter::Shutdown();
 300
 301 #if defined(ENABLE_CONFIGURATION_POLICY)
 302   // The policy providers managed by |browser_policy_connector_| need to shut
 303   // down while the IO and FILE threads are still alive. The monitoring
 304   // framework owned by |browser_policy_connector_| relies on |gcm_driver_|, so
 305   // this must be shutdown before |gcm_driver_| below.
 306   if (browser_policy_connector_)
 307     browser_policy_connector_->Shutdown();
 308 #endif
 309
 310   // The |gcm_driver_| must shut down while the IO thread is still alive.
 311   if (gcm_driver_)
 312     gcm_driver_->Shutdown();
 313
 314   // Stop the watchdog thread before stopping other threads.
 315   watchdog_thread_.reset();
 316
 317 #if defined(USE_AURA)
 318   // Delete aura after the metrics service has been deleted as it accesses
 319   // monitor information.
 320   aura::Env::DeleteInstance();
 321 #endif
 322
 323   platform_part()->StartTearDown();
 324
 325 #if defined(ENABLE_WEBRTC)
 326   // Cancel any uploads to release the system url request context references.
 327   if (webrtc_log_uploader_)
 328     webrtc_log_uploader_->StartShutdown();
 329 #endif
 330
 331   if (local_state())
 332     local_state()->CommitPendingWrite();
 333 }
 334
 335 void BrowserProcessImpl::PostDestroyThreads() {
 336   // With the file_thread_ flushed, we can release any icon resources.
 337   icon_manager_.reset();
 338
 339 #if defined(ENABLE_WEBRTC)
 340   // Must outlive the file thread.
 341   webrtc_log_uploader_.reset();
 342 #endif
 343
 344   // Reset associated state right after actual thread is stopped,
 345   // as io_thread_.global_ cleanup happens in CleanUp on the IO
 346   // thread, i.e. as the thread exits its message loop.
 347   //
 348   // This is important also because in various places, the
 349   // IOThread object being NULL is considered synonymous with the
 350   // IO thread having stopped.
 351   io_thread_.reset();
 352 }
 353
 354 unsigned int BrowserProcessImpl::AddRefModule() {
 355   DCHECK(CalledOnValidThread());
 356
 357   // CHECK(!IsShuttingDown());
 358   if (IsShuttingDown()) {
 359     // Copy the stacktrace which released the final reference onto our stack so
 360     // it will be available in the crash report for inspection.
 361     base::debug::StackTrace callstack = release_last_reference_callstack_;
 362     base::debug::Alias(&callstack);
 363     CHECK(false);
 364   }
 365
 366   did_start_ = true;
 367   module_ref_count_++;
 368   return module_ref_count_;
 369 }
 370
 371 unsigned int BrowserProcessImpl::ReleaseModule() {
 372   DCHECK(CalledOnValidThread());
 373   DCHECK_NE(0u, module_ref_count_);
 374   module_ref_count_--;
 375   if (0 == module_ref_count_) {
 376     release_last_reference_callstack_ = base::debug::StackTrace();
 377
 378 #if defined(ENABLE_PRINTING)
 379     // Wait for the pending print jobs to finish. Don't do this later, since
 380     // this might cause a nested message loop to run, and we don't want pending
 381     // tasks to run once teardown has started.
 382     print_job_manager_->Shutdown();
 383 #endif
 384
 385 #if defined(LEAK_SANITIZER)
 386     // Check for memory leaks now, before we start shutting down threads. Doing
 387     // this early means we won't report any shutdown-only leaks (as they have
 388     // not yet happened at this point).
 389     // If leaks are found, this will make the process exit immediately.
 390     __lsan_do_leak_check();
 391 #endif
 392
 393     CHECK(base::MessageLoop::current()->is_running());
 394
 395 #if defined(OS_MACOSX)
 396     base::MessageLoop::current()->PostTask(
 397         FROM_HERE,
 398         base::Bind(ChromeBrowserMainPartsMac::DidEndMainMessageLoop));
 399 #endif
 400     base::MessageLoop::current()->Quit();
 401   }
 402   return module_ref_count_;
 403 }
 404
 405 namespace {
 406
 407 // Used at the end of session to block the UI thread for completion of sentinel
 408 // tasks on the set of threads used to persist profile data and local state.
 409 // This is done to ensure that the data has been persisted to disk before
 410 // continuing.
 411 class RundownTaskCounter :
 412     public base::RefCountedThreadSafe<RundownTaskCounter> {
 413  public:
 414   RundownTaskCounter();
 415
 416   // Posts a rundown task to |task_runner|, can be invoked an arbitrary number
 417   // of times before calling TimedWait.
 418   void Post(base::SequencedTaskRunner* task_runner);
 419
 420   // Waits until the count is zero or |max_time| has passed.
 421   // This can only be called once per instance.
 422   bool TimedWait(const base::TimeDelta& max_time);
 423
 424  private:
 425   friend class base::RefCountedThreadSafe<RundownTaskCounter>;
 426   ~RundownTaskCounter() {}
 427
 428   // Decrements the counter and releases the waitable event on transition to
 429   // zero.
 430   void Decrement();
 431
 432   // The count starts at one to defer the possibility of one->zero transitions
 433   // until TimedWait is called.
 434   base::AtomicRefCount count_;
 435   base::WaitableEvent waitable_event_;
 436
 437   DISALLOW_COPY_AND_ASSIGN(RundownTaskCounter);
 438 };
 439
 440 RundownTaskCounter::RundownTaskCounter()
 441     : count_(1), waitable_event_(true, false) {
 442 }
 443
 444 void RundownTaskCounter::Post(base::SequencedTaskRunner* task_runner) {
 445   // As the count starts off at one, it should never get to zero unless
 446   // TimedWait has been called.
 447   DCHECK(!base::AtomicRefCountIsZero(&count_));
 448
 449   base::AtomicRefCountInc(&count_);
 450
 451   // The task must be non-nestable to guarantee that it runs after all tasks
 452   // currently scheduled on |task_runner| have completed.
 453   task_runner->PostNonNestableTask(FROM_HERE,
 454       base::Bind(&RundownTaskCounter::Decrement, this));
 455 }
 456
 457 void RundownTaskCounter::Decrement() {
 458   if (!base::AtomicRefCountDec(&count_))
 459     waitable_event_.Signal();
 460 }
 461
 462 bool RundownTaskCounter::TimedWait(const base::TimeDelta& max_time) {
 463   // Decrement the excess count from the constructor.
 464   Decrement();
 465
 466   return waitable_event_.TimedWait(max_time);
 467 }
 468
 469 }  // namespace
 470
 471 void BrowserProcessImpl::EndSession() {
 472   // Mark all the profiles as clean.
 473   ProfileManager* pm = profile_manager();
 474   std::vector<Profile*> profiles(pm->GetLoadedProfiles());
 475   scoped_refptr<RundownTaskCounter> rundown_counter(new RundownTaskCounter());
 476   for (size_t i = 0; i < profiles.size(); ++i) {
 477     Profile* profile = profiles[i];
 478     profile->SetExitType(Profile::EXIT_SESSION_ENDED);
 479     if (profile->GetPrefs()) {
 480       profile->GetPrefs()->CommitPendingWrite();
 481       rundown_counter->Post(profile->GetIOTaskRunner().get());
 482     }
 483   }
 484
 485   // Tell the metrics service it was cleanly shutdown.
 486   metrics::MetricsService* metrics = g_browser_process->metrics_service();
 487   if (metrics && local_state()) {
 488     metrics->RecordStartOfSessionEnd();
 489 #if !defined(OS_CHROMEOS)
 490     // MetricsService lazily writes to prefs, force it to write now.
 491     // On ChromeOS, chrome gets killed when hangs, so no need to
 492     // commit metrics::prefs::kStabilitySessionEndCompleted change immediately.
 493     local_state()->CommitPendingWrite();
 494
 495     rundown_counter->Post(local_state_task_runner_.get());
 496 #endif
 497   }
 498
 499   // http://crbug.com/125207
 500   base::ThreadRestrictions::ScopedAllowWait allow_wait;
 501
 502   // We must write that the profile and metrics service shutdown cleanly,
 503   // otherwise on startup we'll think we crashed. So we block until done and
 504   // then proceed with normal shutdown.
 505   //
 506   // If you change the condition here, be sure to also change
 507   // ProfileBrowserTests to match.
 508 #if defined(USE_X11) || defined(OS_WIN) || defined(USE_OZONE)
 509   // Do a best-effort wait on the successful countdown of rundown tasks. Note
 510   // that if we don't complete "quickly enough", Windows will terminate our
 511   // process.
 512   //
 513   // On Windows, we previously posted a message to FILE and then ran a nested
 514   // message loop, waiting for that message to be processed until quitting.
 515   // However, doing so means that other messages will also be processed. In
 516   // particular, if the GPU process host notices that the GPU has been killed
 517   // during shutdown, it races exiting the nested loop with the process host
 518   // blocking the message loop attempting to re-establish a connection to the
 519   // GPU process synchronously. Because the system may not be allowing
 520   // processes to launch, this can result in a hang. See
 521   // http://crbug.com/318527.
 522   rundown_counter->TimedWait(
 523       base::TimeDelta::FromSeconds(kEndSessionTimeoutSeconds));
 524 #else
 525   NOTIMPLEMENTED();
 526 #endif
 527 }
 528
 529 MetricsServicesManager* BrowserProcessImpl::GetMetricsServicesManager() {
 530   DCHECK(CalledOnValidThread());
 531   if (!metrics_services_manager_)
 532     metrics_services_manager_.reset(new MetricsServicesManager(local_state()));
 533   return metrics_services_manager_.get();
 534 }
 535
 536 metrics::MetricsService* BrowserProcessImpl::metrics_service() {
 537   DCHECK(CalledOnValidThread());
 538   return GetMetricsServicesManager()->GetMetricsService();
 539 }
 540
 541 rappor::RapporService* BrowserProcessImpl::rappor_service() {
 542   DCHECK(CalledOnValidThread());
 543   return GetMetricsServicesManager()->GetRapporService();
 544 }
 545
 546 IOThread* BrowserProcessImpl::io_thread() {
 547   DCHECK(CalledOnValidThread());
 548   DCHECK(io_thread_.get());
 549   return io_thread_.get();
 550 }
 551
 552 WatchDogThread* BrowserProcessImpl::watchdog_thread() {
 553   DCHECK(CalledOnValidThread());
 554   if (!created_watchdog_thread_)
 555     CreateWatchdogThread();
 556   DCHECK(watchdog_thread_.get() != NULL);
 557   return watchdog_thread_.get();
 558 }
 559
 560 ProfileManager* BrowserProcessImpl::profile_manager() {
 561   DCHECK(CalledOnValidThread());
 562   if (!created_profile_manager_)
 563     CreateProfileManager();
 564   return profile_manager_.get();
 565 }
 566
 567 PrefService* BrowserProcessImpl::local_state() {
 568   DCHECK(CalledOnValidThread());
 569   if (!created_local_state_)
 570     CreateLocalState();
 571   return local_state_.get();
 572 }
 573
 574 net::URLRequestContextGetter* BrowserProcessImpl::system_request_context() {
 575   DCHECK(CalledOnValidThread());
 576   return io_thread()->system_url_request_context_getter();
 577 }
 578
 579 chrome_variations::VariationsService* BrowserProcessImpl::variations_service() {
 580   DCHECK(CalledOnValidThread());
 581   return GetMetricsServicesManager()->GetVariationsService();
 582 }
 583
 584 PromoResourceService* BrowserProcessImpl::promo_resource_service() {
 585   DCHECK(CalledOnValidThread());
 586   return promo_resource_service_.get();
 587 }
 588
 589 BrowserProcessPlatformPart* BrowserProcessImpl::platform_part() {
 590   return platform_part_.get();
 591 }
 592
 593 extensions::EventRouterForwarder*
 594 BrowserProcessImpl::extension_event_router_forwarder() {
 595 #if defined(ENABLE_EXTENSIONS)
 596   return extension_event_router_forwarder_.get();
 597 #else
 598   return NULL;
 599 #endif
 600 }
 601
 602 NotificationUIManager* BrowserProcessImpl::notification_ui_manager() {
 603   DCHECK(CalledOnValidThread());
 604   if (!created_notification_ui_manager_)
 605     CreateNotificationUIManager();
 606   return notification_ui_manager_.get();
 607 }
 608
 609 message_center::MessageCenter* BrowserProcessImpl::message_center() {
 610   DCHECK(CalledOnValidThread());
 611   return message_center::MessageCenter::Get();
 612 }
 613
 614 policy::BrowserPolicyConnector* BrowserProcessImpl::browser_policy_connector() {
 615   DCHECK(CalledOnValidThread());
 616 #if defined(ENABLE_CONFIGURATION_POLICY)
 617   if (!created_browser_policy_connector_) {
 618     DCHECK(!browser_policy_connector_);
 619     browser_policy_connector_ = platform_part_->CreateBrowserPolicyConnector();
 620     created_browser_policy_connector_ = true;
 621   }
 622   return browser_policy_connector_.get();
 623 #else
 624   return NULL;
 625 #endif
 626 }
 627
 628 policy::PolicyService* BrowserProcessImpl::policy_service() {
 629 #if defined(ENABLE_CONFIGURATION_POLICY)
 630   return browser_policy_connector()->GetPolicyService();
 631 #else
 632   if (!policy_service_.get())
 633     policy_service_.reset(new policy::PolicyServiceStub());
 634   return policy_service_.get();
 635 #endif
 636 }
 637
 638 IconManager* BrowserProcessImpl::icon_manager() {
 639   DCHECK(CalledOnValidThread());
 640   if (!created_icon_manager_)
 641     CreateIconManager();
 642   return icon_manager_.get();
 643 }
 644
 645 GLStringManager* BrowserProcessImpl::gl_string_manager() {
 646   DCHECK(CalledOnValidThread());
 647   if (!gl_string_manager_.get())
 648     gl_string_manager_.reset(new GLStringManager());
 649   return gl_string_manager_.get();
 650 }
 651
 652 GpuModeManager* BrowserProcessImpl::gpu_mode_manager() {
 653   DCHECK(CalledOnValidThread());
 654   if (!gpu_mode_manager_.get())
 655     gpu_mode_manager_.reset(new GpuModeManager());
 656   return gpu_mode_manager_.get();
 657 }
 658
 659 void BrowserProcessImpl::CreateDevToolsHttpProtocolHandler(
 660     chrome::HostDesktopType host_desktop_type,
 661     const std::string& ip,
 662     uint16 port) {
 663   DCHECK(CalledOnValidThread());
 664 #if !defined(OS_ANDROID)
 665   // StartupBrowserCreator::LaunchBrowser can be run multiple times when browser
 666   // is started with several profiles or existing browser process is reused.
 667   if (!remote_debugging_server_.get()) {
 668     remote_debugging_server_.reset(
 669         new RemoteDebuggingServer(host_desktop_type, ip, port));
 670   }
 671 #endif
 672 }
 673
 674 bool BrowserProcessImpl::IsShuttingDown() {
 675   DCHECK(CalledOnValidThread());
 676   return did_start_ && 0 == module_ref_count_;
 677 }
 678
 679 printing::PrintJobManager* BrowserProcessImpl::print_job_manager() {
 680   DCHECK(CalledOnValidThread());
 681   return print_job_manager_.get();
 682 }
 683
 684 printing::PrintPreviewDialogController*
 685     BrowserProcessImpl::print_preview_dialog_controller() {
 686 #if defined(ENABLE_PRINT_PREVIEW)
 687   DCHECK(CalledOnValidThread());
 688   if (!print_preview_dialog_controller_.get())
 689     CreatePrintPreviewDialogController();
 690   return print_preview_dialog_controller_.get();
 691 #else
 692   NOTIMPLEMENTED();
 693   return NULL;
 694 #endif
 695 }
 696
 697 printing::BackgroundPrintingManager*
 698     BrowserProcessImpl::background_printing_manager() {
 699 #if defined(ENABLE_PRINT_PREVIEW)
 700   DCHECK(CalledOnValidThread());
 701   if (!background_printing_manager_.get())
 702     CreateBackgroundPrintingManager();
 703   return background_printing_manager_.get();
 704 #else
 705   NOTIMPLEMENTED();
 706   return NULL;
 707 #endif
 708 }
 709
 710 IntranetRedirectDetector* BrowserProcessImpl::intranet_redirect_detector() {
 711   DCHECK(CalledOnValidThread());
 712   if (!intranet_redirect_detector_.get())
 713     CreateIntranetRedirectDetector();
 714   return intranet_redirect_detector_.get();
 715 }
 716
 717 const std::string& BrowserProcessImpl::GetApplicationLocale() {
 718   DCHECK(!locale_.empty());
 719   return locale_;
 720 }
 721
 722 void BrowserProcessImpl::SetApplicationLocale(const std::string& locale) {
 723   locale_ = locale;
 724 #if defined(ENABLE_EXTENSIONS)
 725   extension_l10n_util::SetProcessLocale(locale);
 726 #endif
 727   chrome::ChromeContentBrowserClient::SetApplicationLocale(locale);
 728   translate::TranslateDownloadManager::GetInstance()->set_application_locale(
 729       locale);
 730 }
 731
 732 DownloadStatusUpdater* BrowserProcessImpl::download_status_updater() {
 733   return download_status_updater_.get();
 734 }
 735
 736 MediaFileSystemRegistry* BrowserProcessImpl::media_file_system_registry() {
 737 #if defined(ENABLE_EXTENSIONS)
 738   if (!media_file_system_registry_)
 739     media_file_system_registry_.reset(new MediaFileSystemRegistry());
 740   return media_file_system_registry_.get();
 741 #else
 742   return NULL;
 743 #endif
 744 }
 745
 746 bool BrowserProcessImpl::created_local_state() const {
 747   return created_local_state_;
 748 }
 749
 750 #if defined(ENABLE_WEBRTC)
 751 WebRtcLogUploader* BrowserProcessImpl::webrtc_log_uploader() {
 752   if (!webrtc_log_uploader_.get())
 753     webrtc_log_uploader_.reset(new WebRtcLogUploader());
 754   return webrtc_log_uploader_.get();
 755 }
 756 #endif
 757
 758 network_time::NetworkTimeTracker* BrowserProcessImpl::network_time_tracker() {
 759   if (!network_time_tracker_) {
 760     network_time_tracker_.reset(new network_time::NetworkTimeTracker(
 761         scoped_ptr<base::TickClock>(new base::DefaultTickClock()),
 762         local_state()));
 763   }
 764   return network_time_tracker_.get();
 765 }
 766
 767 gcm::GCMDriver* BrowserProcessImpl::gcm_driver() {
 768   DCHECK(CalledOnValidThread());
 769   if (!gcm_driver_)
 770     CreateGCMDriver();
 771   return gcm_driver_.get();
 772 }
 773
 774 memory::OomPriorityManager* BrowserProcessImpl::GetOomPriorityManager() {
 775   DCHECK(CalledOnValidThread());
 776 #if defined(OS_CHROMEOS)
 777   if (!oom_priority_manager_.get())
 778     oom_priority_manager_.reset(new memory::OomPriorityManager());
 779   return oom_priority_manager_.get();
 780 #else
 781   return nullptr;
 782 #endif
 783 }
 784
 785 // static
 786 void BrowserProcessImpl::RegisterPrefs(PrefRegistrySimple* registry) {
 787   registry->RegisterBooleanPref(prefs::kDefaultBrowserSettingEnabled,
 788                                 false);
 789   // This policy needs to be defined before the net subsystem is initialized,
 790   // so we do it here.
 791   registry->RegisterIntegerPref(prefs::kMaxConnectionsPerProxy,
 792                                 net::kDefaultMaxSocketsPerProxyServer);
 793
 794   registry->RegisterBooleanPref(prefs::kAllowCrossOriginAuthPrompt, false);
 795
 796 #if defined(OS_CHROMEOS) || defined(OS_ANDROID) || defined(OS_IOS)
 797   registry->RegisterBooleanPref(prefs::kEulaAccepted, false);
 798 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID) || defined(OS_IOS)
 799 #if defined(OS_WIN)
 800   if (base::win::GetVersion() >= base::win::VERSION_WIN7) {
 801     registry->RegisterStringPref(prefs::kRelaunchMode,
 802                                  upgrade_util::kRelaunchModeDefault);
 803   }
 804 #endif
 805
 806   // TODO(brettw,*): this comment about ResourceBundle was here since
 807   // initial commit.  This comment seems unrelated, bit-rotten and
 808   // a candidate for removal.
 809   // Initialize ResourceBundle which handles files loaded from external
 810   // sources. This has to be done before uninstall code path and before prefs
 811   // are registered.
 812   registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 813 #if defined(OS_CHROMEOS)
 814   registry->RegisterStringPref(prefs::kOwnerLocale, std::string());
 815   registry->RegisterStringPref(prefs::kHardwareKeyboardLayout,
 816                                std::string());
 817 #endif  // defined(OS_CHROMEOS)
 818 #if !defined(OS_CHROMEOS)
 819   registry->RegisterBooleanPref(
 820       prefs::kMetricsReportingEnabled,
 821       GoogleUpdateSettings::GetCollectStatsConsent());
 822 #endif  // !defined(OS_CHROMEOS)
 823
 824 #if defined(OS_ANDROID)
 825   registry->RegisterBooleanPref(
 826       prefs::kCrashReportingEnabled, false);
 827 #endif  // defined(OS_ANDROID)
 828 }
 829
 830 DownloadRequestLimiter* BrowserProcessImpl::download_request_limiter() {
 831   DCHECK(CalledOnValidThread());
 832   if (!download_request_limiter_.get())
 833     download_request_limiter_ = new DownloadRequestLimiter();
 834   return download_request_limiter_.get();
 835 }
 836
 837 BackgroundModeManager* BrowserProcessImpl::background_mode_manager() {
 838   DCHECK(CalledOnValidThread());
 839 #if defined(ENABLE_BACKGROUND)
 840   if (!background_mode_manager_.get())
 841     CreateBackgroundModeManager();
 842   return background_mode_manager_.get();
 843 #else
 844   NOTIMPLEMENTED();
 845   return NULL;
 846 #endif
 847 }
 848
 849 void BrowserProcessImpl::set_background_mode_manager_for_test(
 850     scoped_ptr<BackgroundModeManager> manager) {
 851 #if defined(ENABLE_BACKGROUND)
 852   background_mode_manager_ = manager.Pass();
 853 #endif
 854 }
 855
 856 StatusTray* BrowserProcessImpl::status_tray() {
 857   DCHECK(CalledOnValidThread());
 858   if (!status_tray_.get())
 859     CreateStatusTray();
 860   return status_tray_.get();
 861 }
 862
 863
 864 SafeBrowsingService* BrowserProcessImpl::safe_browsing_service() {
 865   DCHECK(CalledOnValidThread());
 866   if (!created_safe_browsing_service_)
 867     CreateSafeBrowsingService();
 868   return safe_browsing_service_.get();
 869 }
 870
 871 safe_browsing::ClientSideDetectionService*
 872     BrowserProcessImpl::safe_browsing_detection_service() {
 873   DCHECK(CalledOnValidThread());
 874   if (safe_browsing_service())
 875     return safe_browsing_service()->safe_browsing_detection_service();
 876   return NULL;
 877 }
 878
 879 #if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
 880 void BrowserProcessImpl::StartAutoupdateTimer() {
 881   autoupdate_timer_.Start(FROM_HERE,
 882       base::TimeDelta::FromHours(kUpdateCheckIntervalHours),
 883       this,
 884       &BrowserProcessImpl::OnAutoupdateTimer);
 885 }
 886 #endif
 887
 888 ChromeNetLog* BrowserProcessImpl::net_log() {
 889   return net_log_.get();
 890 }
 891
 892 component_updater::ComponentUpdateService*
 893 BrowserProcessImpl::component_updater() {
 894   if (!component_updater_.get()) {
 895     if (!BrowserThread::CurrentlyOn(BrowserThread::UI))
 896       return NULL;
 897     scoped_refptr<update_client::Configurator> configurator =
 898         component_updater::MakeChromeComponentUpdaterConfigurator(
 899             base::CommandLine::ForCurrentProcess(),
 900             io_thread()->system_url_request_context_getter());
 901     // Creating the component updater does not do anything, components
 902     // need to be registered and Start() needs to be called.
 903     component_updater_.reset(component_updater::ComponentUpdateServiceFactory(
 904                                  configurator).release());
 905   }
 906   return component_updater_.get();
 907 }
 908
 909 CRLSetFetcher* BrowserProcessImpl::crl_set_fetcher() {
 910   if (!crl_set_fetcher_)
 911     crl_set_fetcher_ = new CRLSetFetcher();
 912   return crl_set_fetcher_.get();
 913 }
 914
 915 component_updater::PnaclComponentInstaller*
 916 BrowserProcessImpl::pnacl_component_installer() {
 917 #if !defined(DISABLE_NACL)
 918   if (!pnacl_component_installer_) {
 919     pnacl_component_installer_ =
 920         new component_updater::PnaclComponentInstaller();
 921   }
 922   return pnacl_component_installer_.get();
 923 #else
 924   return nullptr;
 925 #endif
 926 }
 927
 928 component_updater::SupervisedUserWhitelistInstaller*
 929 BrowserProcessImpl::supervised_user_whitelist_installer() {
 930   if (!supervised_user_whitelist_installer_) {
 931     supervised_user_whitelist_installer_ =
 932         component_updater::SupervisedUserWhitelistInstaller::Create(
 933             component_updater(), &profile_manager()->GetProfileInfoCache(),
 934             local_state());
 935   }
 936   return supervised_user_whitelist_installer_.get();
 937 }
 938
 939 void BrowserProcessImpl::ResourceDispatcherHostCreated() {
 940   resource_dispatcher_host_delegate_.reset(
 941       new ChromeResourceDispatcherHostDelegate);
 942   ResourceDispatcherHost::Get()->SetDelegate(
 943       resource_dispatcher_host_delegate_.get());
 944
 945   pref_change_registrar_.Add(
 946       prefs::kAllowCrossOriginAuthPrompt,
 947       base::Bind(&BrowserProcessImpl::ApplyAllowCrossOriginAuthPromptPolicy,
 948                  base::Unretained(this)));
 949   ApplyAllowCrossOriginAuthPromptPolicy();
 950 }
 951
 952 void BrowserProcessImpl::CreateWatchdogThread() {
 953   DCHECK(!created_watchdog_thread_ && watchdog_thread_.get() == NULL);
 954   created_watchdog_thread_ = true;
 955
 956   scoped_ptr<WatchDogThread> thread(new WatchDogThread());
 957   base::Thread::Options options;
 958   options.timer_slack = base::TIMER_SLACK_MAXIMUM;
 959   if (!thread->StartWithOptions(options))
 960     return;
 961   watchdog_thread_.swap(thread);
 962 }
 963
 964 void BrowserProcessImpl::CreateProfileManager() {
 965   DCHECK(!created_profile_manager_ && profile_manager_.get() == NULL);
 966   created_profile_manager_ = true;
 967
 968   base::FilePath user_data_dir;
 969   PathService::Get(chrome::DIR_USER_DATA, &user_data_dir);
 970   profile_manager_.reset(new ProfileManager(user_data_dir));
 971 }
 972
 973 void BrowserProcessImpl::CreateLocalState() {
 974   DCHECK(!created_local_state_ && local_state_.get() == NULL);
 975   created_local_state_ = true;
 976
 977   base::FilePath local_state_path;
 978   CHECK(PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path));
 979   scoped_refptr<PrefRegistrySimple> pref_registry = new PrefRegistrySimple;
 980
 981   // Register local state preferences.
 982   chrome::RegisterLocalState(pref_registry.get());
 983
 984   local_state_ =
 985       chrome_prefs::CreateLocalState(local_state_path,
 986                                      local_state_task_runner_.get(),
 987                                      policy_service(),
 988                                      pref_registry,
 989                                      false).Pass();
 990
 991   pref_change_registrar_.Init(local_state_.get());
 992
 993   // Initialize the notification for the default browser setting policy.
 994   pref_change_registrar_.Add(
 995       prefs::kDefaultBrowserSettingEnabled,
 996       base::Bind(&BrowserProcessImpl::ApplyDefaultBrowserPolicy,
 997                  base::Unretained(this)));
 998
 999   // This preference must be kept in sync with external values; update them
1000   // whenever the preference or its controlling policy changes.
1001 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
1002   pref_change_registrar_.Add(
1003       prefs::kMetricsReportingEnabled,
1004       base::Bind(&BrowserProcessImpl::ApplyMetricsReportingPolicy,
1005                  base::Unretained(this)));
1006 #endif
1007
1008   int max_per_proxy = local_state_->GetInteger(prefs::kMaxConnectionsPerProxy);
1009   net::ClientSocketPoolManager::set_max_sockets_per_proxy_server(
1010       net::HttpNetworkSession::NORMAL_SOCKET_POOL,
1011       std::max(std::min(max_per_proxy, 99),
1012                net::ClientSocketPoolManager::max_sockets_per_group(
1013                    net::HttpNetworkSession::NORMAL_SOCKET_POOL)));
1014 }
1015
1016 void BrowserProcessImpl::PreCreateThreads() {
1017   io_thread_.reset(
1018       new IOThread(local_state(), policy_service(), net_log_.get(),
1019                    extension_event_router_forwarder()));
1020 }
1021
1022 void BrowserProcessImpl::PreMainMessageLoopRun() {
1023   TRACE_EVENT0("startup", "BrowserProcessImpl::PreMainMessageLoopRun");
1024   SCOPED_UMA_HISTOGRAM_TIMER(
1025       "Startup.BrowserProcessImpl_PreMainMessageLoopRunTime");
1026
1027 #if defined(ENABLE_CONFIGURATION_POLICY)
1028   // browser_policy_connector() is created very early because local_state()
1029   // needs policy to be initialized with the managed preference values.
1030   // However, policy fetches from the network and loading of disk caches
1031   // requires that threads are running; this Init() call lets the connector
1032   // resume its initialization now that the loops are spinning and the
1033   // system request context is available for the fetchers.
1034   browser_policy_connector()->Init(local_state(), system_request_context());
1035 #endif
1036
1037   if (local_state_->IsManagedPreference(prefs::kDefaultBrowserSettingEnabled))
1038     ApplyDefaultBrowserPolicy();
1039
1040 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
1041   ApplyMetricsReportingPolicy();
1042 #endif
1043
1044 #if defined(ENABLE_PLUGINS)
1045   PluginService* plugin_service = PluginService::GetInstance();
1046   plugin_service->SetFilter(ChromePluginServiceFilter::GetInstance());
1047   plugin_service->StartWatchingPlugins();
1048
1049 #if defined(OS_POSIX)
1050   // Also find plugins in a user-specific plugins dir,
1051   // e.g. ~/.config/chromium/Plugins.
1052   const base::CommandLine& cmd_line = *base::CommandLine::ForCurrentProcess();
1053   if (!cmd_line.HasSwitch(switches::kDisablePluginsDiscovery)) {
1054     base::FilePath user_data_dir;
1055     if (PathService::Get(chrome::DIR_USER_DATA, &user_data_dir))
1056       plugin_service->AddExtraPluginDir(user_data_dir.Append("Plugins"));
1057   }
1058 #endif
1059
1060   // Triggers initialization of the singleton instance on UI thread.
1061   PluginFinder::GetInstance()->Init();
1062
1063 #if defined(ENABLE_PLUGIN_INSTALLATION)
1064   DCHECK(!plugins_resource_service_.get());
1065   plugins_resource_service_.reset(new PluginsResourceService(local_state()));
1066   plugins_resource_service_->Init();
1067 #endif
1068 #endif  // defined(ENABLE_PLUGINS)
1069
1070   const base::CommandLine& command_line =
1071       *base::CommandLine::ForCurrentProcess();
1072   if (!command_line.HasSwitch(switches::kDisableWebResources)) {
1073     DCHECK(!promo_resource_service_.get());
1074     promo_resource_service_.reset(new PromoResourceService);
1075     promo_resource_service_->StartAfterDelay();
1076   }
1077
1078 #if !defined(OS_ANDROID) && !defined(OS_IOS)
1079   storage_monitor::StorageMonitor::Create();
1080 #endif
1081
1082   child_process_watcher_.reset(new ChromeChildProcessWatcher());
1083
1084   platform_part_->PreMainMessageLoopRun();
1085 }
1086
1087 void BrowserProcessImpl::CreateIconManager() {
1088   DCHECK(!created_icon_manager_ && icon_manager_.get() == NULL);
1089   created_icon_manager_ = true;
1090   icon_manager_.reset(new IconManager);
1091 }
1092
1093 void BrowserProcessImpl::CreateIntranetRedirectDetector() {
1094   DCHECK(intranet_redirect_detector_.get() == NULL);
1095   scoped_ptr<IntranetRedirectDetector> intranet_redirect_detector(
1096       new IntranetRedirectDetector);
1097   intranet_redirect_detector_.swap(intranet_redirect_detector);
1098 }
1099
1100 void BrowserProcessImpl::CreateNotificationUIManager() {
1101 #if defined(ENABLE_NOTIFICATIONS)
1102   DCHECK(notification_ui_manager_.get() == NULL);
1103   notification_ui_manager_.reset(NotificationUIManager::Create(local_state()));
1104   created_notification_ui_manager_ = true;
1105 #endif
1106 }
1107
1108 void BrowserProcessImpl::CreateBackgroundModeManager() {
1109 #if defined(ENABLE_BACKGROUND)
1110   DCHECK(background_mode_manager_.get() == NULL);
1111   background_mode_manager_.reset(
1112       new BackgroundModeManager(*base::CommandLine::ForCurrentProcess(),
1113                                 &profile_manager()->GetProfileInfoCache()));
1114 #endif
1115 }
1116
1117 void BrowserProcessImpl::CreateStatusTray() {
1118   DCHECK(status_tray_.get() == NULL);
1119   status_tray_.reset(StatusTray::Create());
1120 }
1121
1122 void BrowserProcessImpl::CreatePrintPreviewDialogController() {
1123 #if defined(ENABLE_PRINT_PREVIEW)
1124   DCHECK(print_preview_dialog_controller_.get() == NULL);
1125   print_preview_dialog_controller_ =
1126       new printing::PrintPreviewDialogController();
1127 #else
1128   NOTIMPLEMENTED();
1129 #endif
1130 }
1131
1132 void BrowserProcessImpl::CreateBackgroundPrintingManager() {
1133 #if defined(ENABLE_PRINT_PREVIEW)
1134   DCHECK(background_printing_manager_.get() == NULL);
1135   background_printing_manager_.reset(new printing::BackgroundPrintingManager());
1136 #else
1137   NOTIMPLEMENTED();
1138 #endif
1139 }
1140
1141 void BrowserProcessImpl::CreateSafeBrowsingService() {
1142   DCHECK(safe_browsing_service_.get() == NULL);
1143   // Set this flag to true so that we don't retry indefinitely to
1144   // create the service class if there was an error.
1145   created_safe_browsing_service_ = true;
1146 #if defined(SAFE_BROWSING_SERVICE)
1147   safe_browsing_service_ = SafeBrowsingService::CreateSafeBrowsingService();
1148   safe_browsing_service_->Initialize();
1149 #endif
1150 }
1151
1152 void BrowserProcessImpl::CreateGCMDriver() {
1153   DCHECK(!gcm_driver_);
1154
1155 #if defined(OS_ANDROID)
1156   // Android's GCMDriver currently makes the assumption that it's a singleton.
1157   // Until this gets fixed, instantiating multiple Java GCMDrivers will throw
1158   // an exception, but because they're only initialized on demand these crashes
1159   // would be very difficult to triage. See http://crbug.com/437827.
1160   NOTREACHED();
1161 #else
1162   base::FilePath store_path;
1163   CHECK(PathService::Get(chrome::DIR_GLOBAL_GCM_STORE, &store_path));
1164   gcm_driver_ = gcm::CreateGCMDriverDesktop(
1165       make_scoped_ptr(new gcm::GCMClientFactory),
1166       local_state(),
1167       store_path,
1168       system_request_context());
1169 #endif  // defined(OS_ANDROID)
1170 }
1171
1172 void BrowserProcessImpl::ApplyDefaultBrowserPolicy() {
1173   if (local_state()->GetBoolean(prefs::kDefaultBrowserSettingEnabled)) {
1174     scoped_refptr<ShellIntegration::DefaultWebClientWorker>
1175         set_browser_worker = new ShellIntegration::DefaultBrowserWorker(NULL);
1176     set_browser_worker->StartSetAsDefault();
1177   }
1178 }
1179
1180 void BrowserProcessImpl::ApplyAllowCrossOriginAuthPromptPolicy() {
1181   bool value = local_state()->GetBoolean(prefs::kAllowCrossOriginAuthPrompt);
1182   ResourceDispatcherHost::Get()->SetAllowCrossOriginAuthPrompt(value);
1183 }
1184
1185 void BrowserProcessImpl::ApplyMetricsReportingPolicy() {
1186 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID) && !defined(OS_IOS)
1187   CHECK(BrowserThread::PostTask(
1188       BrowserThread::FILE, FROM_HERE,
1189       base::Bind(
1190           base::IgnoreResult(&GoogleUpdateSettings::SetCollectStatsConsent),
1191           local_state()->GetBoolean(prefs::kMetricsReportingEnabled))));
1192 #endif
1193 }
1194
1195 // Mac is currently not supported.
1196 #if (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)
1197
1198 bool BrowserProcessImpl::CanAutorestartForUpdate() const {
1199   // Check if browser is in the background and if it needs to be restarted to
1200   // apply a pending update.
1201   return chrome::GetTotalBrowserCount() == 0 && chrome::WillKeepAlive() &&
1202          upgrade_util::IsUpdatePendingRestart();
1203 }
1204
1205 // Switches to add when auto-restarting Chrome.
1206 const char* const kSwitchesToAddOnAutorestart[] = {
1207   switches::kNoStartupWindow
1208 };
1209
1210 void BrowserProcessImpl::RestartBackgroundInstance() {
1211   base::CommandLine* old_cl = base::CommandLine::ForCurrentProcess();
1212   scoped_ptr<base::CommandLine> new_cl(
1213       new base::CommandLine(old_cl->GetProgram()));
1214
1215   std::map<std::string, base::CommandLine::StringType> switches =
1216       old_cl->GetSwitches();
1217
1218   switches::RemoveSwitchesForAutostart(&switches);
1219
1220   // Append the rest of the switches (along with their values, if any)
1221   // to the new command line
1222   for (std::map<std::string, base::CommandLine::StringType>::const_iterator i =
1223            switches.begin();
1224        i != switches.end(); ++i) {
1225     base::CommandLine::StringType switch_value = i->second;
1226       if (switch_value.length() > 0) {
1227         new_cl->AppendSwitchNative(i->first, i->second);
1228       } else {
1229         new_cl->AppendSwitch(i->first);
1230       }
1231   }
1232
1233   // Ensure that our desired switches are set on the new process.
1234   for (size_t i = 0; i < arraysize(kSwitchesToAddOnAutorestart); ++i) {
1235     if (!new_cl->HasSwitch(kSwitchesToAddOnAutorestart[i]))
1236       new_cl->AppendSwitch(kSwitchesToAddOnAutorestart[i]);
1237   }
1238
1239   DLOG(WARNING) << "Shutting down current instance of the browser.";
1240   chrome::AttemptExit();
1241
1242   // Transfer ownership to Upgrade.
1243   upgrade_util::SetNewCommandLine(new_cl.release());
1244 }
1245
1246 void BrowserProcessImpl::OnAutoupdateTimer() {
1247   if (CanAutorestartForUpdate()) {
1248     DLOG(WARNING) << "Detected update.  Restarting browser.";
1249     RestartBackgroundInstance();
1250   }
1251 }
1252
1253 #endif  // (defined(OS_WIN) || defined(OS_LINUX)) && !defined(OS_CHROMEOS)