chrome/browser/chrome_browser_main.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/chrome_browser_main.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/at_exit.h"
  12 #include "base/bind.h"
  13 #include "base/command_line.h"
  14 #include "base/debug/crash_logging.h"
  15 #include "base/debug/debugger.h"
  16 #include "base/debug/trace_event.h"
  17 #include "base/files/file_path.h"
  18 #include "base/files/file_util.h"
  19 #include "base/metrics/field_trial.h"
  20 #include "base/metrics/histogram.h"
  21 #include "base/path_service.h"
  22 #include "base/prefs/json_pref_store.h"
  23 #include "base/prefs/pref_registry_simple.h"
  24 #include "base/prefs/pref_service.h"
  25 #include "base/prefs/pref_value_store.h"
  26 #include "base/prefs/scoped_user_pref_update.h"
  27 #include "base/process/process_info.h"
  28 #include "base/run_loop.h"
  29 #include "base/strings/string_number_conversions.h"
  30 #include "base/strings/string_piece.h"
  31 #include "base/strings/string_split.h"
  32 #include "base/strings/sys_string_conversions.h"
  33 #include "base/strings/utf_string_conversions.h"
  34 #include "base/sys_info.h"
  35 #include "base/threading/platform_thread.h"
  36 #include "base/time/time.h"
  37 #include "base/values.h"
  38 #include "build/build_config.h"
  39 #include "chrome/browser/about_flags.h"
  40 #include "chrome/browser/browser_process.h"
  41 #include "chrome/browser/browser_process_impl.h"
  42 #include "chrome/browser/browser_process_platform_part.h"
  43 #include "chrome/browser/browser_shutdown.h"
  44 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  45 #include "chrome/browser/component_updater/cld_component_installer.h"
  46 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  47 #include "chrome/browser/component_updater/flash_component_installer.h"
  48 #include "chrome/browser/component_updater/recovery_component_installer.h"
  49 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  50 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  51 #include "chrome/browser/defaults.h"
  52 #include "chrome/browser/extensions/extension_service.h"
  53 #include "chrome/browser/extensions/startup_helper.h"
  54 #include "chrome/browser/first_run/first_run.h"
  55 #include "chrome/browser/first_run/upgrade_util.h"
  56 #include "chrome/browser/google/google_search_counter.h"
  57 #include "chrome/browser/gpu/gl_string_manager.h"
  58 #include "chrome/browser/gpu/three_d_api_observer.h"
  59 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  60 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  61 #include "chrome/browser/metrics/thread_watcher.h"
  62 #include "chrome/browser/metrics/tracking_synchronizer.h"
  63 #include "chrome/browser/metrics/variations/variations_service.h"
  64 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  65 #include "chrome/browser/net/chrome_net_log.h"
  66 #include "chrome/browser/net/crl_set_fetcher.h"
  67 #include "chrome/browser/notifications/desktop_notification_service.h"
  68 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  69 #include "chrome/browser/performance_monitor/performance_monitor.h"
  70 #include "chrome/browser/performance_monitor/startup_timer.h"
  71 #include "chrome/browser/plugins/plugin_prefs.h"
  72 #include "chrome/browser/power/process_power_collector.h"
  73 #include "chrome/browser/pref_service_flags_storage.h"
  74 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  75 #include "chrome/browser/prefs/command_line_pref_store.h"
  76 #include "chrome/browser/prefs/pref_metrics_service.h"
  77 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  78 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  79 #include "chrome/browser/process_singleton.h"
  80 #include "chrome/browser/profiles/profile.h"
  81 #include "chrome/browser/profiles/profile_manager.h"
  82 #include "chrome/browser/profiles/profiles_state.h"
  83 #include "chrome/browser/shell_integration.h"
  84 #include "chrome/browser/translate/translate_service.h"
  85 #include "chrome/browser/ui/app_list/app_list_service.h"
  86 #include "chrome/browser/ui/browser.h"
  87 #include "chrome/browser/ui/browser_finder.h"
  88 #include "chrome/browser/ui/host_desktop.h"
  89 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  90 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  91 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  92 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  93 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  94 #include "chrome/common/chrome_constants.h"
  95 #include "chrome/common/chrome_paths.h"
  96 #include "chrome/common/chrome_result_codes.h"
  97 #include "chrome/common/chrome_switches.h"
  98 #include "chrome/common/crash_keys.h"
  99 #include "chrome/common/env_vars.h"
 100 #include "chrome/common/logging_chrome.h"
 101 #include "chrome/common/net/net_resource_provider.h"
 102 #include "chrome/common/pref_names.h"
 103 #include "chrome/common/profiling.h"
 104 #include "chrome/grit/generated_resources.h"
 105 #include "chrome/installer/util/google_update_settings.h"
 106 #include "components/component_updater/component_updater_service.h"
 107 #include "components/google/core/browser/google_util.h"
 108 #include "components/language_usage_metrics/language_usage_metrics.h"
 109 #include "components/metrics/metrics_service.h"
 110 #include "components/nacl/browser/nacl_browser.h"
 111 #include "components/rappor/rappor_service.h"
 112 #include "components/signin/core/common/profile_management_switches.h"
 113 #include "components/startup_metric_utils/startup_metric_utils.h"
 114 #include "components/translate/content/common/cld_data_source.h"
 115 #include "components/translate/core/browser/translate_download_manager.h"
 116 #include "components/variations/variations_http_header_provider.h"
 117 #include "content/public/browser/browser_thread.h"
 118 #include "content/public/browser/notification_observer.h"
 119 #include "content/public/browser/notification_registrar.h"
 120 #include "content/public/browser/notification_service.h"
 121 #include "content/public/browser/notification_types.h"
 122 #include "content/public/browser/site_instance.h"
 123 #include "content/public/common/content_client.h"
 124 #include "content/public/common/content_switches.h"
 125 #include "content/public/common/main_function_params.h"
 126 #include "extensions/browser/extension_protocols.h"
 127 #include "grit/app_locale_settings.h"
 128 #include "grit/browser_resources.h"
 129 #include "grit/platform_locale_settings.h"
 130 #include "net/base/net_module.h"
 131 #include "net/base/sdch_manager.h"
 132 #include "net/cookies/cookie_monster.h"
 133 #include "net/http/http_network_layer.h"
 134 #include "net/http/http_stream_factory.h"
 135 #include "net/url_request/url_request.h"
 136 #include "ui/base/l10n/l10n_util.h"
 137 #include "ui/base/layout.h"
 138 #include "ui/base/resource/resource_bundle.h"
 139
 140 #if defined(OS_ANDROID)
 141 #include "chrome/browser/metrics/thread_watcher_android.h"
 142 #else
 143 #include "chrome/browser/feedback/feedback_profile_observer.h"
 144 #endif
 145
 146 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 147 #include "chrome/browser/first_run/upgrade_util_linux.h"
 148 #include "chrome/browser/sxs_linux.h"
 149 #endif
 150
 151 #if defined(OS_CHROMEOS)
 152 #include "chrome/browser/chromeos/settings/cros_settings.h"
 153 #include "chromeos/chromeos_switches.h"
 154 #include "chromeos/settings/cros_settings_names.h"
 155 #endif
 156
 157 // TODO(port): several win-only methods have been pulled out of this, but
 158 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 159 // other platforms. For now, it's just a stub. This is a serious work in
 160 // progress and should not be taken as an indication of a real refactoring.
 161
 162 #if defined(OS_WIN)
 163 #include "base/environment.h"  // For PreRead experiment.
 164 #include "base/win/windows_version.h"
 165 #include "chrome/browser/browser_util_win.h"
 166 #include "chrome/browser/chrome_browser_main_win.h"
 167 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 168 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 169 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 170 #include "chrome/browser/first_run/upgrade_util_win.h"
 171 #include "chrome/browser/ui/network_profile_bubble.h"
 172 #include "chrome/installer/util/helper.h"
 173 #include "chrome/installer/util/install_util.h"
 174 #include "chrome/installer/util/shell_util.h"
 175 #include "net/base/net_util.h"
 176 #include "ui/base/l10n/l10n_util_win.h"
 177 #include "ui/gfx/win/dpi.h"
 178 #include "ui/shell_dialogs/select_file_dialog.h"
 179 #endif  // defined(OS_WIN)
 180
 181 #if defined(OS_MACOSX)
 182 #include <Security/Security.h>
 183
 184 #include "base/mac/scoped_nsautorelease_pool.h"
 185 #include "chrome/browser/mac/keystone_glue.h"
 186 #endif
 187
 188 #if !defined(DISABLE_NACL)
 189 #include "chrome/browser/component_updater/pnacl/pnacl_component_installer.h"
 190 #include "components/nacl/browser/nacl_process_host.h"
 191 #endif
 192
 193 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
 194 #include "printing/printed_document.h"
 195 #endif
 196
 197 #if defined(ENABLE_RLZ)
 198 #include "chrome/browser/rlz/rlz.h"
 199 #endif
 200
 201 #if defined(ENABLE_WEBRTC)
 202 #include "chrome/browser/media/webrtc_log_util.h"
 203 #endif
 204
 205 #if defined(USE_AURA)
 206 #include "ui/aura/env.h"
 207 #endif
 208
 209 using content::BrowserThread;
 210
 211 namespace {
 212
 213 // This function provides some ways to test crash and assertion handling
 214 // behavior of the program.
 215 void HandleTestParameters(const CommandLine& command_line) {
 216   // This parameter causes an assertion.
 217   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
 218     DCHECK(false);
 219   }
 220
 221   // This parameter causes a null pointer crash (crash reporter trigger).
 222   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 223     int* bad_pointer = NULL;
 224     *bad_pointer = 0;
 225   }
 226 }
 227
 228 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 229 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 230                         const std::vector<GURL>& new_tabs) {
 231   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 232        it != new_tabs.end(); ++it) {
 233     if (it->is_valid())
 234       browser_creator->AddFirstRunTab(*it);
 235   }
 236 }
 237 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 238
 239 // Returns the new local state object, guaranteed non-NULL.
 240 // |local_state_task_runner| must be a shutdown-blocking task runner.
 241 PrefService* InitializeLocalState(
 242     base::SequencedTaskRunner* local_state_task_runner,
 243     const CommandLine& parsed_command_line) {
 244   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 245   base::FilePath local_state_path;
 246   PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 247   bool local_state_file_exists = base::PathExists(local_state_path);
 248
 249   // Load local state.  This includes the application locale so we know which
 250   // locale dll to load.  This also causes local state prefs to be registered.
 251   PrefService* local_state = g_browser_process->local_state();
 252   DCHECK(local_state);
 253
 254 #if defined(OS_WIN)
 255   if (first_run::IsChromeFirstRun()) {
 256     // During first run we read the google_update registry key to find what
 257     // language the user selected when downloading the installer. This
 258     // becomes our default language in the prefs.
 259     // Other platforms obey the system locale.
 260     base::string16 install_lang;
 261     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 262       local_state->SetString(prefs::kApplicationLocale,
 263                              base::UTF16ToASCII(install_lang));
 264     }
 265   }
 266 #endif  // defined(OS_WIN)
 267
 268   // If the local state file for the current profile doesn't exist and the
 269   // parent profile command line flag is present, then we should inherit some
 270   // local state from the parent profile.
 271   // Checking that the local state file for the current profile doesn't exist
 272   // is the most robust way to determine whether we need to inherit or not
 273   // since the parent profile command line flag can be present even when the
 274   // current profile is not a new one, and in that case we do not want to
 275   // inherit and reset the user's setting.
 276   //
 277   // TODO(mnissler): We should probably just instantiate a
 278   // JSONPrefStore here instead of an entire PrefService. Once this is
 279   // addressed, the call to browser_prefs::RegisterLocalState can move
 280   // to chrome_prefs::CreateLocalState.
 281   if (!local_state_file_exists &&
 282       parsed_command_line.HasSwitch(switches::kParentProfile)) {
 283     base::FilePath parent_profile =
 284         parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 285     scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 286     scoped_ptr<PrefService> parent_local_state(
 287         chrome_prefs::CreateLocalState(
 288             parent_profile,
 289             local_state_task_runner,
 290             g_browser_process->policy_service(),
 291             registry,
 292             false));
 293     registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 294     // Right now, we only inherit the locale setting from the parent profile.
 295     local_state->SetString(
 296         prefs::kApplicationLocale,
 297         parent_local_state->GetString(prefs::kApplicationLocale));
 298   }
 299
 300 #if defined(OS_CHROMEOS)
 301   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 302     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 303     // Ensure that we start with owner's locale.
 304     if (!owner_locale.empty() &&
 305         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 306         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 307       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 308     }
 309   }
 310 #endif
 311
 312   return local_state;
 313 }
 314
 315 // Initializes the primary profile, possibly doing some user prompting to pick
 316 // a fallback profile. Returns the newly created profile, or NULL if startup
 317 // should not continue.
 318 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 319                               const base::FilePath& user_data_dir,
 320                               const CommandLine& parsed_command_line) {
 321   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 322   base::Time start = base::Time::Now();
 323   if (profiles::IsMultipleProfilesEnabled() &&
 324       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 325     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
 326         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 327     // Clear kProfilesLastActive since the user only wants to launch a specific
 328     // profile.
 329     ListPrefUpdate update(g_browser_process->local_state(),
 330                           prefs::kProfilesLastActive);
 331     base::ListValue* profile_list = update.Get();
 332     profile_list->Clear();
 333   }
 334
 335   Profile* profile = NULL;
 336 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 337   // On ChromeOS and Android the ProfileManager will use the same path as the
 338   // one we got passed. GetActiveUserProfile will therefore use the correct path
 339   // automatically.
 340   DCHECK_EQ(user_data_dir.value(),
 341             g_browser_process->profile_manager()->user_data_dir().value());
 342   profile = ProfileManager::GetActiveUserProfile();
 343 #else
 344   base::FilePath profile_path =
 345       GetStartupProfilePath(user_data_dir, parsed_command_line);
 346   profile = g_browser_process->profile_manager()->GetProfile(
 347       profile_path);
 348
 349   // If we're using the --new-profile-management flag and this profile is
 350   // signed out, then we should show the user manager instead. By switching
 351   // the active profile to the guest profile we ensure that no
 352   // browser windows will be opened for the guest profile.
 353   if (switches::IsNewProfileManagement() && !profile->IsGuestSession()) {
 354     ProfileInfoCache& cache =
 355         g_browser_process->profile_manager()->GetProfileInfoCache();
 356     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 357
 358     if (cache.ProfileIsSigninRequiredAtIndex(profile_index))
 359       profile = g_browser_process->profile_manager()->GetProfile(
 360           ProfileManager::GetGuestProfilePath());
 361   }
 362 #endif
 363   if (profile) {
 364     UMA_HISTOGRAM_LONG_TIMES(
 365         "Startup.CreateFirstProfile", base::Time::Now() - start);
 366     return profile;
 367   }
 368
 369 #if !defined(OS_WIN)
 370   // TODO(port): fix this.  See comments near the definition of
 371   // user_data_dir.  It is better to CHECK-fail here than it is to
 372   // silently exit because of missing code in the above test.
 373   CHECK(profile) << "Cannot get default profile.";
 374 #endif
 375
 376   return NULL;
 377 }
 378
 379 #if defined(OS_MACOSX)
 380 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 381                           SecKeychainCallbackInfo* info, void* context) {
 382   return noErr;
 383 }
 384 #endif
 385
 386 void RegisterComponentsForUpdate() {
 387   component_updater::ComponentUpdateService* cus =
 388       g_browser_process->component_updater();
 389
 390   // Registration can be before or after cus->Start() so it is ok to post
 391   // a task to the UI thread to do registration once you done the necessary
 392   // file IO to know you existing component version.
 393 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 394   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 395   RegisterPepperFlashComponent(cus);
 396   RegisterSwiftShaderComponent(cus);
 397   RegisterWidevineCdmComponent(cus);
 398 #if !defined(DISABLE_NACL)
 399   g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 400 #endif
 401 #endif
 402
 403   if (translate::CldDataSource::ShouldRegisterForComponentUpdates()) {
 404     RegisterCldComponent(cus);
 405   }
 406
 407   base::FilePath path;
 408   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 409 #if defined(OS_ANDROID)
 410     // The CRLSet component was enabled for some releases. This code attempts to
 411     // delete it from the local disk of those how may have downloaded it.
 412     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 413 #elif !defined(OS_CHROMEOS)
 414     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 415     // network.
 416     // For Chrome OS this registration is delayed until user login.
 417     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 418 #endif
 419   }
 420
 421 #if !defined(OS_ANDROID)
 422   // Android does not currently have the EV indicator. No need to get the
 423   // EV certs whitelist on Android, then.
 424   RegisterEVWhitelistComponent(cus);
 425 #endif
 426
 427 #if defined(OS_WIN)
 428   ExecutePendingSwReporter(cus, g_browser_process->local_state());
 429 #endif
 430
 431   cus->Start();
 432 }
 433
 434 #if !defined(OS_ANDROID)
 435 bool ProcessSingletonNotificationCallback(
 436     const CommandLine& command_line,
 437     const base::FilePath& current_directory) {
 438   // Drop the request if the browser process is already in shutdown path.
 439   if (!g_browser_process || g_browser_process->IsShuttingDown())
 440     return false;
 441
 442   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 443     std::string start_time_string =
 444         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 445     int64 remote_start_time;
 446     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 447       base::TimeDelta elapsed =
 448           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 449       if (command_line.HasSwitch(switches::kFastStart)) {
 450         UMA_HISTOGRAM_LONG_TIMES(
 451             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 452       } else {
 453         UMA_HISTOGRAM_LONG_TIMES(
 454             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 455       }
 456     }
 457   }
 458
 459   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 460       command_line);
 461
 462   base::FilePath user_data_dir =
 463       g_browser_process->profile_manager()->user_data_dir();
 464   base::FilePath startup_profile_dir =
 465       GetStartupProfilePath(user_data_dir, command_line);
 466
 467   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 468       command_line, current_directory, startup_profile_dir);
 469   return true;
 470 }
 471 #endif  // !defined(OS_ANDROID)
 472
 473 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
 474   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 475     std::string port_str =
 476         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 477     int port;
 478     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 479       g_browser_process->CreateDevToolsHttpProtocolHandler(
 480           chrome::HOST_DESKTOP_TYPE_NATIVE,
 481           "127.0.0.1",
 482           port);
 483     } else {
 484       DLOG(WARNING) << "Invalid http debugger port number " << port;
 485     }
 486   }
 487 }
 488
 489 // Heap allocated class that listens for first page load, kicks off stat
 490 // recording and then deletes itself.
 491 class LoadCompleteListener : public content::NotificationObserver {
 492  public:
 493   LoadCompleteListener() {
 494     registrar_.Add(this,
 495                    content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
 496                    content::NotificationService::AllSources());
 497   }
 498   virtual ~LoadCompleteListener() {}
 499
 500   // content::NotificationObserver implementation.
 501   virtual void Observe(int type,
 502                        const content::NotificationSource& source,
 503                        const content::NotificationDetails& details) OVERRIDE {
 504     DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type);
 505     startup_metric_utils::OnInitialPageLoadComplete();
 506     delete this;
 507   }
 508
 509  private:
 510   content::NotificationRegistrar registrar_;
 511   DISALLOW_COPY_AND_ASSIGN(LoadCompleteListener);
 512 };
 513
 514 }  // namespace
 515
 516 namespace chrome_browser {
 517
 518 // This error message is not localized because we failed to load the
 519 // localization data files.
 520 #if defined(OS_WIN)
 521 const char kMissingLocaleDataTitle[] = "Missing File Error";
 522 #endif
 523
 524 #if defined(OS_WIN)
 525 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 526 const char kMissingLocaleDataMessage[] =
 527     "Unable to find locale data files. Please reinstall.";
 528 #endif
 529
 530 }  // namespace chrome_browser
 531
 532 // BrowserMainParts ------------------------------------------------------------
 533
 534 // static
 535 bool ChromeBrowserMainParts::disable_enforcing_cookie_policies_for_tests_ =
 536     false;
 537
 538 ChromeBrowserMainParts::ChromeBrowserMainParts(
 539     const content::MainFunctionParams& parameters)
 540     : parameters_(parameters),
 541       parsed_command_line_(parameters.command_line),
 542       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 543       startup_watcher_(new StartupTimeBomb()),
 544       shutdown_watcher_(new ShutdownWatcherHelper()),
 545       startup_timer_(new performance_monitor::StartupTimer()),
 546       browser_field_trials_(parameters.command_line),
 547       profile_(NULL),
 548       run_message_loop_(true),
 549       notify_result_(ProcessSingleton::PROCESS_NONE),
 550       local_state_(NULL),
 551       restart_last_session_(false) {
 552   // If we're running tests (ui_task is non-null).
 553   if (parameters.ui_task)
 554     browser_defaults::enable_help_app = false;
 555
 556   // Chrome disallows cookies by default. All code paths that want to use
 557   // cookies need to go through one of Chrome's URLRequestContexts which have
 558   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 559   if (!disable_enforcing_cookie_policies_for_tests_)
 560     net::URLRequest::SetDefaultCookiePolicyToBlock();
 561 }
 562
 563 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 564   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 565     delete chrome_extra_parts_[i];
 566   chrome_extra_parts_.clear();
 567 }
 568
 569 // This will be called after the command-line has been mutated by about:flags
 570 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 571   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 572   // Must initialize metrics after labs have been converted into switches,
 573   // but before field trials are set up (so that client ID is available for
 574   // one-time randomized field trials).
 575
 576   // Initialize FieldTrialList to support FieldTrials that use one-time
 577   // randomization.
 578   metrics::MetricsService* metrics = browser_process_->metrics_service();
 579   field_trial_list_.reset(
 580       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 581
 582   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 583   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 584     base::FieldTrial::EnableBenchmarking();
 585
 586   // Ensure any field trials specified on the command line are initialized.
 587   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 588     std::set<std::string> unforceable_field_trials;
 589 #if defined(OFFICIAL_BUILD)
 590     unforceable_field_trials.insert("SettingsEnforcement");
 591 #endif  // defined(OFFICIAL_BUILD)
 592
 593     // Create field trials without activating them, so that this behaves in a
 594     // consistent manner with field trials created from the server.
 595     bool result = base::FieldTrialList::CreateTrialsFromString(
 596         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 597         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 598         unforceable_field_trials);
 599     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 600                   << " list specified.";
 601   }
 602   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 603     // Create default variation ids which will always be included in the
 604     // X-Client-Data request header.
 605     variations::VariationsHttpHeaderProvider* provider =
 606         variations::VariationsHttpHeaderProvider::GetInstance();
 607     bool result = provider->SetDefaultVariationIds(
 608         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 609     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 610                   << " list specified.";
 611   }
 612   chrome_variations::VariationsService* variations_service =
 613       browser_process_->variations_service();
 614   if (variations_service)
 615     variations_service->CreateTrialsFromSeed();
 616
 617   // This must be called after |local_state_| is initialized.
 618   browser_field_trials_.SetupFieldTrials(
 619       base::Time::FromTimeT(metrics->GetInstallDate()), local_state_);
 620
 621   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 622   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 623   // Even though base::Bind does AddRef and Release, the object will not be
 624   // deleted after the Task is executed.
 625   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 626
 627   // Now that field trials have been created, initializes metrics recording.
 628   metrics->InitializeMetricsRecordingState();
 629 }
 630
 631 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 632
 633 void ChromeBrowserMainParts::StartMetricsRecording() {
 634   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 635   metrics::MetricsService* metrics = g_browser_process->metrics_service();
 636
 637   const bool only_do_metrics_recording =
 638       parsed_command_line_.HasSwitch(switches::kMetricsRecordingOnly) ||
 639       parsed_command_line_.HasSwitch(switches::kEnableBenchmarking);
 640   if (only_do_metrics_recording) {
 641     // If we're testing then we don't care what the user preference is, we turn
 642     // on recording, but not reporting, otherwise tests fail.
 643     metrics->StartRecordingForTests();
 644     return;
 645   }
 646
 647   metrics->CheckForClonedInstall(
 648       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 649   const bool metrics_enabled = metrics->StartIfMetricsReportingEnabled();
 650   // TODO(asvitkine): Since this function is not run on Android, RAPPOR is
 651   // currently disabled there. http://crbug.com/370041
 652   browser_process_->rappor_service()->Start(
 653       browser_process_->local_state(),
 654       browser_process_->system_request_context(),
 655       metrics_enabled);
 656 }
 657
 658 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 659   // Don't record any metrics if UI was displayed before this point e.g.
 660   // warning dialogs.
 661   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 662     return;
 663
 664 #if defined(OS_ANDROID)
 665   // On Android the first run is handled in Java code, and the C++ side of
 666   // Chrome doesn't know if this is the first run. This will cause some
 667   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 668   // rare).
 669   bool is_first_run = false;
 670 #else
 671   bool is_first_run = first_run::IsChromeFirstRun();
 672 #endif
 673
 674 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 675 // platforms.
 676 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 677   const base::Time process_creation_time =
 678       base::CurrentProcessInfo::CreationTime();
 679
 680   if (!is_first_run && !process_creation_time.is_null()) {
 681     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 682     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 683   }
 684 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 685
 686   // Record collected startup metrics.
 687   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 688
 689   // Deletes self.
 690   new LoadCompleteListener();
 691 }
 692
 693 // -----------------------------------------------------------------------------
 694 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 695
 696 #if defined(OS_WIN)
 697 #define DLLEXPORT __declspec(dllexport)
 698
 699 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 700 extern "C" {
 701 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 702 }
 703
 704 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 705   // Need an instance of AtExitManager to handle singleton creations and
 706   // deletions.  We need this new instance because, the old instance created
 707   // in ChromeMain() got destructed when the function returned.
 708   base::AtExitManager exit_manager;
 709   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 710 }
 711 #endif
 712
 713 // content::BrowserMainParts implementation ------------------------------------
 714
 715 void ChromeBrowserMainParts::PreEarlyInitialization() {
 716   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 717   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 718     chrome_extra_parts_[i]->PreEarlyInitialization();
 719 }
 720
 721 void ChromeBrowserMainParts::PostEarlyInitialization() {
 722   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 723   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 724     chrome_extra_parts_[i]->PostEarlyInitialization();
 725 }
 726
 727 void ChromeBrowserMainParts::ToolkitInitialized() {
 728   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 729   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 730     chrome_extra_parts_[i]->ToolkitInitialized();
 731 }
 732
 733 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 734   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 735   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 736     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 737 }
 738
 739 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 740   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 741   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 742     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 743 }
 744
 745 int ChromeBrowserMainParts::PreCreateThreads() {
 746   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 747   result_code_ = PreCreateThreadsImpl();
 748
 749   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 750 #if !defined(OS_ANDROID)
 751     // These members must be initialized before exiting this function normally.
 752     DCHECK(master_prefs_.get());
 753     DCHECK(browser_creator_.get());
 754 #endif
 755     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 756       chrome_extra_parts_[i]->PreCreateThreads();
 757   }
 758
 759   return result_code_;
 760 }
 761
 762 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 763   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 764   run_message_loop_ = false;
 765 #if !defined(OS_ANDROID)
 766   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 767 #endif
 768   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 769     return chrome::RESULT_CODE_MISSING_DATA;
 770
 771   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 772   MediaCaptureDevicesDispatcher::GetInstance();
 773
 774   // Android's first run is done in Java instead of native.
 775 #if !defined(OS_ANDROID)
 776   process_singleton_.reset(new ChromeProcessSingleton(
 777       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 778
 779   // Cache first run state early.
 780   first_run::IsChromeFirstRun();
 781 #endif
 782
 783   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 784       JsonPrefStore::GetTaskRunnerForFile(
 785           base::FilePath(chrome::kLocalStorePoolName),
 786           BrowserThread::GetBlockingPool());
 787
 788   {
 789     TRACE_EVENT0("startup",
 790       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 791     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 792                                                   parsed_command_line()));
 793   }
 794
 795   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 796     TRACE_EVENT0("startup",
 797         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 798     // User wants to override default tracking status.
 799     std::string flag =
 800       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 801     // Default to basic profiling (no parent child support).
 802     tracked_objects::ThreadData::Status status =
 803           tracked_objects::ThreadData::PROFILING_ACTIVE;
 804     if (flag.compare("0") != 0)
 805       status = tracked_objects::ThreadData::DEACTIVATED;
 806     else if (flag.compare("child") != 0)
 807       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 808     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 809   }
 810
 811   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 812     tracking_objects_.set_output_file_path(
 813         parsed_command_line().GetSwitchValuePath(
 814             switches::kProfilingOutputFile));
 815   }
 816
 817   local_state_ = InitializeLocalState(
 818       local_state_task_runner.get(), parsed_command_line());
 819
 820 #if !defined(OS_ANDROID)
 821   // These members must be initialized before returning from this function.
 822   master_prefs_.reset(new first_run::MasterPrefs);
 823   // Android doesn't use StartupBrowserCreator.
 824   browser_creator_.reset(new StartupBrowserCreator);
 825   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 826   chrome::UMABrowsingActivityObserver::Init();
 827 #endif
 828
 829 #if !defined(OS_CHROMEOS)
 830   // Convert active labs into switches. This needs to be done before
 831   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 832   // affected by experiment flags (--touch-optimized-ui in particular).
 833   // On ChromeOS system level flags are applied from the device settings from
 834   // the session manager.
 835   {
 836     TRACE_EVENT0("startup",
 837         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 838     about_flags::PrefServiceFlagsStorage flags_storage_(
 839         g_browser_process->local_state());
 840     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 841                                         CommandLine::ForCurrentProcess(),
 842                                         about_flags::kAddSentinels);
 843   }
 844 #endif
 845
 846   local_state_->UpdateCommandLinePrefStore(
 847       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 848
 849   // Reset the command line in the crash report details, since we may have
 850   // just changed it to include experiments.
 851   crash_keys::SetSwitchesFromCommandLine(CommandLine::ForCurrentProcess());
 852
 853   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 854   // needed when loading the MainMenu.nib and the language doesn't depend on
 855   // anything since it comes from Cocoa.
 856 #if defined(OS_MACOSX)
 857   std::string locale =
 858       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 859   browser_process_->SetApplicationLocale(locale);
 860 #else
 861   const std::string locale =
 862       local_state_->GetString(prefs::kApplicationLocale);
 863
 864   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 865   // method InitSharedInstance is ignored.
 866
 867   TRACE_EVENT_BEGIN0("startup",
 868       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 869   const std::string loaded_locale =
 870       ui::ResourceBundle::InitSharedInstanceWithLocale(
 871           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 872   TRACE_EVENT_END0("startup",
 873       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 874
 875   if (loaded_locale.empty() &&
 876       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 877     ShowMissingLocaleMessageBox();
 878     return chrome::RESULT_CODE_MISSING_DATA;
 879   }
 880   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 881   browser_process_->SetApplicationLocale(loaded_locale);
 882
 883   base::FilePath resources_pack_path;
 884   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 885   {
 886     TRACE_EVENT0("startup",
 887         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 888     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 889         resources_pack_path, ui::SCALE_FACTOR_NONE);
 890   }
 891 #endif  // defined(OS_MACOSX)
 892
 893   // Android does first run in Java instead of native.
 894   // Chrome OS has its own out-of-box-experience code.
 895 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 896   // On first run, we need to process the predictor preferences before the
 897   // browser's profile_manager object is created, but after ResourceBundle
 898   // is initialized.
 899   if (first_run::IsChromeFirstRun()) {
 900     first_run::ProcessMasterPreferencesResult pmp_result =
 901         first_run::ProcessMasterPreferences(user_data_dir_,
 902                                             master_prefs_.get());
 903     if (pmp_result == first_run::EULA_EXIT_NOW)
 904       return chrome::RESULT_CODE_EULA_REFUSED;
 905
 906     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 907         !parsed_command_line().HasSwitch(switches::kAppId) &&
 908         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 909       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 910     }
 911
 912     // TODO(macourteau): refactor preferences that are copied from
 913     // master_preferences into local_state, as a "local_state" section in
 914     // master preferences. If possible, a generic solution would be preferred
 915     // over a copy one-by-one of specific preferences. Also see related TODO
 916     // in first_run.h.
 917
 918     // Store the initial VariationsService seed in local state, if it exists
 919     // in master prefs.
 920     if (!master_prefs_->variations_seed.empty()) {
 921       local_state_->SetString(prefs::kVariationsSeed,
 922                               master_prefs_->variations_seed);
 923       if (!master_prefs_->variations_seed_signature.empty()) {
 924         local_state_->SetString(prefs::kVariationsSeedSignature,
 925                                 master_prefs_->variations_seed_signature);
 926       }
 927       // Set the variation seed date to the current system time. If the user's
 928       // clock is incorrect, this may cause some field trial expiry checks to
 929       // not do the right thing until the next seed update from the server,
 930       // when this value will be updated.
 931       local_state_->SetInt64(prefs::kVariationsSeedDate,
 932                              base::Time::Now().ToInternalValue());
 933     }
 934
 935     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 936       local_state_->SetString(
 937           prefs::kBrowserSuppressDefaultBrowserPrompt,
 938           master_prefs_->suppress_default_browser_prompt_for_version);
 939     }
 940
 941     AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->HandleFirstRun();
 942   }
 943 #endif
 944
 945 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 946   // Set the product channel for crash reports.
 947   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 948       chrome::VersionInfo::GetVersionStringModifier());
 949 #endif
 950
 951   // Initialize tracking synchronizer system.
 952   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 953
 954 #if defined(OS_MACOSX)
 955   // Get the Keychain API to register for distributed notifications on the main
 956   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 957   // which doesn't. This ensures those notifications will get delivered
 958   // properly. See issue 37766.
 959   // (Note that the callback mask here is empty. I don't want to register for
 960   // any callbacks, I just want to initialize the mechanism.)
 961   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 962 #endif
 963
 964 #if defined(OS_CHROMEOS)
 965   // Must be done after g_browser_process is constructed, before
 966   // SetupMetricsAndFieldTrials().
 967   chromeos::CrosSettings::Initialize();
 968 #endif
 969
 970   // Now the command line has been mutated based on about:flags, we can setup
 971   // metrics and initialize field trials. The field trials are needed by
 972   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
 973   SetupMetricsAndFieldTrials();
 974
 975   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
 976   browser_process_->PreCreateThreads();
 977
 978   return content::RESULT_CODE_NORMAL_EXIT;
 979 }
 980
 981 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
 982   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
 983   result_code_ = PreMainMessageLoopRunImpl();
 984
 985   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 986     chrome_extra_parts_[i]->PreMainMessageLoopRun();
 987 }
 988
 989 // PreMainMessageLoopRun calls these extra stages in the following order:
 990 //  PreMainMessageLoopRunImpl()
 991 //   ... initial setup, including browser_process_ setup.
 992 //   PreProfileInit()
 993 //   ... additional setup, including CreateProfile()
 994 //   PostProfileInit()
 995 //   ... additional setup
 996 //   PreBrowserStart()
 997 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
 998 //   PostBrowserStart()
 999
1000 void ChromeBrowserMainParts::PreProfileInit() {
1001   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1002
1003   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1004     chrome_extra_parts_[i]->PreProfileInit();
1005
1006 #if !defined(OS_ANDROID)
1007   // Initialize the feedback uploader so it can setup notifications for profile
1008   // creation.
1009   feedback::FeedbackProfileObserver::Initialize();
1010
1011   ProfileManager* profile_manager = g_browser_process->profile_manager();
1012
1013   // First check if any ephemeral profiles are left behind because of browser
1014   // crash and schedule them for deletion and then proceed with getting the set
1015   // of profiles to open.
1016   ProfileInfoCache& profile_cache = profile_manager->GetProfileInfoCache();
1017   size_t profiles_count = profile_cache.GetNumberOfProfiles();
1018   std::vector<base::FilePath> profiles_to_delete;
1019   for (size_t i = 0; i < profiles_count; ++i) {
1020     if (profile_cache.ProfileIsEphemeralAtIndex(i))
1021       profiles_to_delete.push_back(profile_cache.GetPathOfProfileAtIndex(i));
1022   }
1023
1024   if (profiles_to_delete.size()) {
1025     for (size_t i = 0; i < profiles_to_delete.size(); ++i) {
1026       profile_manager->ScheduleProfileForDeletion(
1027           profiles_to_delete[i], ProfileManager::CreateCallback());
1028     }
1029     // Clean up stale profiles immediately after browser start.
1030     BrowserThread::PostTask(
1031         BrowserThread::FILE, FROM_HERE,
1032         base::Bind(&ProfileManager::CleanUpStaleProfiles, profiles_to_delete));
1033   }
1034 #endif  // OS_ANDROID
1035 }
1036
1037 void ChromeBrowserMainParts::PostProfileInit() {
1038   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1039   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1040   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1041     chrome_extra_parts_[i]->PostProfileInit();
1042 }
1043
1044 void ChromeBrowserMainParts::PreBrowserStart() {
1045   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1046   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1047     chrome_extra_parts_[i]->PreBrowserStart();
1048
1049   three_d_observer_.reset(new ThreeDAPIObserver());
1050 }
1051
1052 void ChromeBrowserMainParts::PostBrowserStart() {
1053   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1054   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1055     chrome_extra_parts_[i]->PostBrowserStart();
1056 #if !defined(OS_ANDROID)
1057   // Allow ProcessSingleton to process messages.
1058   process_singleton_->Unlock();
1059 #endif
1060 #if defined(ENABLE_WEBRTC)
1061   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1062   // to reduce the impact on startup time.
1063   BrowserThread::PostDelayedTask(
1064       BrowserThread::UI,
1065       FROM_HERE,
1066       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1067       base::TimeDelta::FromMinutes(1));
1068 #endif
1069 }
1070
1071 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1072   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1073   // Android updates the metrics service dynamically depending on whether the
1074   // application is in the foreground or not. Do not start here.
1075 #if !defined(OS_ANDROID)
1076   // Now that the file thread has been started, start recording.
1077   StartMetricsRecording();
1078 #endif
1079
1080   // Create watchdog thread after creating all other threads because it will
1081   // watch the other threads and they must be running.
1082   browser_process_->watchdog_thread();
1083
1084   // Do any initializating in the browser process that requires all threads
1085   // running.
1086   browser_process_->PreMainMessageLoopRun();
1087
1088   // Record last shutdown time into a histogram.
1089   browser_shutdown::ReadLastShutdownInfo();
1090
1091 #if defined(OS_WIN)
1092   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1093   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1094   // upgrade/uninstall happen separately.
1095   bool already_running = browser_util::IsBrowserAlreadyRunning();
1096
1097   // If the command line specifies 'uninstall' then we need to work here
1098   // unless we detect another chrome browser running.
1099   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1100     return DoUninstallTasks(already_running);
1101   }
1102
1103   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1104       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1105     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1106         parsed_command_line_);
1107   }
1108
1109   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1110       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1111 #endif
1112
1113   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1114     return ShellIntegration::SetAsDefaultBrowser() ?
1115         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1116         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1117   }
1118
1119 #if defined(USE_AURA)
1120   // Make sure aura::Env has been initialized.
1121   CHECK(aura::Env::GetInstance());
1122 #endif
1123
1124   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1125 #if !defined(OS_ANDROID)
1126   // If the command line specifies --pack-extension, attempt the pack extension
1127   // startup action and exit.
1128   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1129     extensions::StartupHelper extension_startup_helper;
1130     if (extension_startup_helper.PackExtension(parsed_command_line()))
1131       return content::RESULT_CODE_NORMAL_EXIT;
1132     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1133   }
1134
1135   // If we're being launched just to check the connector policy, we are
1136   // short-lived and don't want to be passing that switch off.
1137   bool pass_command_line = !parsed_command_line().HasSwitch(
1138       switches::kCheckCloudPrintConnectorPolicy);
1139
1140   if (pass_command_line) {
1141     // When another process is running, use that process instead of starting a
1142     // new one. NotifyOtherProcess will currently give the other process up to
1143     // 20 seconds to respond. Note that this needs to be done before we attempt
1144     // to read the profile.
1145     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1146     switch (notify_result_) {
1147       case ProcessSingleton::PROCESS_NONE:
1148         // No process already running, fall through to starting a new one.
1149         break;
1150
1151       case ProcessSingleton::PROCESS_NOTIFIED:
1152 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1153         printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1154             l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1155 #endif
1156         // Having a differentiated return type for testing allows for tests to
1157         // verify proper handling of some switches. When not testing, stick to
1158         // the standard Unix convention of returning zero when things went as
1159         // expected.
1160         if (parsed_command_line().HasSwitch(switches::kTestType))
1161           return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1162         return content::RESULT_CODE_NORMAL_EXIT;
1163
1164       case ProcessSingleton::PROFILE_IN_USE:
1165         return chrome::RESULT_CODE_PROFILE_IN_USE;
1166
1167       case ProcessSingleton::LOCK_ERROR:
1168         LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1169                       "directory. This means that running multiple instances "
1170                       "would start multiple browser processes rather than "
1171                       "opening a new window in the existing process. Aborting "
1172                       "now to avoid profile corruption.";
1173         return chrome::RESULT_CODE_PROFILE_IN_USE;
1174
1175       default:
1176         NOTREACHED();
1177     }
1178   }
1179 #endif  // !defined(OS_ANDROID)
1180
1181   // Handle special early return paths (which couldn't be processed even earlier
1182   // as they require the process singleton to be held) first.
1183
1184   std::string try_chrome =
1185       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1186   if (!try_chrome.empty()) {
1187 #if defined(OS_WIN)
1188     // Setup.exe has determined that we need to run a retention experiment
1189     // and has lauched chrome to show the experiment UI. It is guaranteed that
1190     // no other Chrome is currently running as the process singleton was
1191     // sucessfully grabbed above.
1192     int try_chrome_int;
1193     base::StringToInt(try_chrome, &try_chrome_int);
1194     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1195         try_chrome_int,
1196         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1197                    base::Unretained(process_singleton_.get())));
1198     if (answer == TryChromeDialogView::NOT_NOW)
1199       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1200     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1201       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1202     // At this point the user is willing to try chrome again.
1203     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1204       // Only set in the unattended case, the interactive case is Windows 8.
1205       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1206           ShellIntegration::SET_DEFAULT_UNATTENDED)
1207         ShellIntegration::SetAsDefaultBrowser();
1208     }
1209 #else
1210     // We don't support retention experiments on Mac or Linux.
1211     return content::RESULT_CODE_NORMAL_EXIT;
1212 #endif  // defined(OS_WIN)
1213   }
1214
1215 #if defined(OS_WIN)
1216   // Do the tasks if chrome has been upgraded while it was last running.
1217   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1218     return content::RESULT_CODE_NORMAL_EXIT;
1219
1220   // Check if there is any machine level Chrome installed on the current
1221   // machine. If yes and the current Chrome process is user level, we do not
1222   // allow the user level Chrome to run. So we notify the user and uninstall
1223   // user level Chrome.
1224   // Note this check needs to happen here (after the process singleton was
1225   // obtained but before potentially creating the first run sentinel).
1226   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1227     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1228 #endif  // defined(OS_WIN)
1229
1230 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1231   if (sxs_linux::ShouldMigrateUserDataDir())
1232     return sxs_linux::MigrateUserDataDir();
1233 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1234
1235   // Desktop construction occurs here, (required before profile creation).
1236   PreProfileInit();
1237
1238   // Profile creation ----------------------------------------------------------
1239
1240   metrics::MetricsService::SetExecutionPhase(
1241       metrics::MetricsService::CREATE_PROFILE,
1242       g_browser_process->local_state());
1243   profile_ = CreatePrimaryProfile(parameters(),
1244                                   user_data_dir_,
1245                                   parsed_command_line());
1246   if (!profile_)
1247     return content::RESULT_CODE_NORMAL_EXIT;
1248
1249 #if !defined(OS_ANDROID)
1250   // The first run sentinel must be created after the process singleton was
1251   // grabbed and no early return paths were otherwise hit above.
1252   first_run::CreateSentinelIfNeeded();
1253 #endif  // !defined(OS_ANDROID)
1254
1255 #if defined(ENABLE_BACKGROUND)
1256   // Autoload any profiles which are running background apps.
1257   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1258   browser_process_->profile_manager()->AutoloadProfiles();
1259 #endif
1260   // Post-profile init ---------------------------------------------------------
1261
1262   TranslateService::Initialize();
1263
1264   // Needs to be done before PostProfileInit, since login manager on CrOS is
1265   // called inside PostProfileInit.
1266   content::WebUIControllerFactory::RegisterFactory(
1267       ChromeWebUIControllerFactory::GetInstance());
1268
1269   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1270   // So make sure to create it before that.
1271 #if !defined(DISABLE_NACL)
1272   NaClBrowserDelegateImpl* delegate =
1273       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1274   nacl::NaClBrowser::SetDelegate(delegate);
1275 #endif
1276
1277   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1278   // (requires supporting early exit).
1279   PostProfileInit();
1280
1281   // Retrieve cached GL strings from local state and use them for GPU
1282   // blacklist decisions.
1283   if (g_browser_process->gl_string_manager())
1284     g_browser_process->gl_string_manager()->Initialize();
1285
1286   // Create an instance of GpuModeManager to watch gpu mode pref change.
1287   g_browser_process->gpu_mode_manager();
1288
1289 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1290   // Show the First Run UI if this is the first time Chrome has been run on
1291   // this computer, or we're being compelled to do so by a command line flag.
1292   // Note that this be done _after_ the PrefService is initialized and all
1293   // preferences are registered, since some of the code that the importer
1294   // touches reads preferences.
1295   if (first_run::IsChromeFirstRun()) {
1296     first_run::AutoImport(profile_,
1297                           master_prefs_->homepage_defined,
1298                           master_prefs_->do_import_items,
1299                           master_prefs_->dont_import_items,
1300                           master_prefs_->import_bookmarks_path);
1301
1302     // Note: this can pop the first run consent dialog on linux.
1303     first_run::DoPostImportTasks(profile_,
1304                                  master_prefs_->make_chrome_default_for_user);
1305
1306     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1307       browser_creator_->set_show_main_browser_window(
1308           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1309     } else {
1310       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1311     }
1312   }
1313 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1314
1315 #if defined(OS_WIN)
1316   // Sets things up so that if we crash from this point on, a dialog will
1317   // popup asking the user to restart chrome. It is done this late to avoid
1318   // testing against a bunch of special cases that are taken care early on.
1319   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1320       parsed_command_line());
1321
1322   // Registers Chrome with the Windows Restart Manager, which will restore the
1323   // Chrome session when the computer is restarted after a system update.
1324   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1325   // but should run on startup if extended to handle crashes/hangs/patches.
1326   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1327   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1328     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1329         parsed_command_line());
1330   }
1331
1332   // Verify that the profile is not on a network share and if so prepare to show
1333   // notification to the user.
1334   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1335     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1336         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1337                    profile_->GetPath()));
1338   }
1339 #endif  // OS_WIN
1340
1341 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1342   // Init the RLZ library. This just binds the dll and schedules a task on the
1343   // file thread to be run sometime later. If this is the first run we record
1344   // the installation event.
1345   PrefService* pref_service = profile_->GetPrefs();
1346   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1347       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1348   // Negative ping delay means to send ping immediately after a first search is
1349   // recorded.
1350   RLZTracker::InitRlzFromProfileDelayed(
1351       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1352       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1353 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1354
1355   // Configure modules that need access to resources.
1356   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1357
1358   // In unittest mode, this will do nothing.  In normal mode, this will create
1359   // the global IntranetRedirectDetector instance, which will promptly go to
1360   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1361   // to see if it should do anything else.
1362   //
1363   // A simpler way of doing all this would be to have some function which could
1364   // give the time elapsed since startup, and simply have this object check that
1365   // when asked to initialize itself, but this doesn't seem to exist.
1366   //
1367   // This can't be created in the BrowserProcessImpl constructor because it
1368   // needs to read prefs that get set after that runs.
1369   browser_process_->intranet_redirect_detector();
1370   GoogleSearchCounter::RegisterForNotifications();
1371
1372   if (parsed_command_line().HasSwitch(switches::kEnableSdchOverHttps)) {
1373     net::SdchManager::EnableSecureSchemeSupport(true);
1374   } else {
1375     // Check SDCH field trial.
1376     const char kSdchFieldTrialName[] = "SDCH";
1377     const char kEnabledAllGroupName[] = "EnabledAll";
1378     const char kEnabledHttpOnlyGroupName[] = "EnabledHttpOnly";
1379     const char kDisabledAllGroupName[] = "DisabledAll";
1380
1381     base::StringPiece sdch_trial_group =
1382         base::FieldTrialList::FindFullName(kSdchFieldTrialName);
1383     if (sdch_trial_group.starts_with(kEnabledAllGroupName)) {
1384       net::SdchManager::EnableSecureSchemeSupport(true);
1385       net::SdchManager::EnableSdchSupport(true);
1386     } else if (sdch_trial_group.starts_with(kEnabledHttpOnlyGroupName)) {
1387       net::SdchManager::EnableSdchSupport(true);
1388     } else if (sdch_trial_group.starts_with(kDisabledAllGroupName)) {
1389       net::SdchManager::EnableSdchSupport(false);
1390     }
1391   }
1392
1393 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
1394   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1395     base::FilePath path =
1396         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1397     printing::PrintedDocument::set_debug_dump_path(path);
1398   }
1399 #endif
1400
1401   HandleTestParameters(parsed_command_line());
1402   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1403       base::debug::BeingDebugged());
1404
1405   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1406       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1407   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1408       browser_process_->GetApplicationLocale());
1409
1410   // Start watching for hangs during startup. We disarm this hang detector when
1411   // ThreadWatcher takes over or when browser is shutdown or when
1412   // startup_watcher_ is deleted.
1413   metrics::MetricsService::SetExecutionPhase(
1414       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1415       g_browser_process->local_state());
1416   startup_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1417
1418   // On mobile, need for clean shutdown arises only when the application comes
1419   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1420   // http://crbug.com/179143
1421 #if !defined(OS_ANDROID)
1422   // Start watching for a hang.
1423   metrics::MetricsService::LogNeedForCleanShutdown(
1424       g_browser_process->local_state());
1425 #endif
1426
1427 #if defined(ENABLE_FULL_PRINTING)
1428   // Create the instance of the cloud print proxy service so that it can launch
1429   // the service process if needed. This is needed because the service process
1430   // might have shutdown because an update was available.
1431   // TODO(torne): this should maybe be done with
1432   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1433   // instead?
1434   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1435 #endif
1436
1437   // Start watching all browser threads for responsiveness.
1438   metrics::MetricsService::SetExecutionPhase(
1439       metrics::MetricsService::THREAD_WATCHER_START,
1440       g_browser_process->local_state());
1441   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1442
1443 #if defined(OS_ANDROID)
1444   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1445 #endif
1446
1447 #if !defined(DISABLE_NACL)
1448   BrowserThread::PostTask(
1449       BrowserThread::IO,
1450       FROM_HERE,
1451       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1452 #endif
1453
1454   // Make sure initial prefs are recorded
1455   PrefMetricsService::Factory::GetForProfile(profile_);
1456
1457   PreBrowserStart();
1458
1459   // Instantiate the notification UI manager, as this triggers a perf timer
1460   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1461   // triggering the timer and call that explicitly in the approprate place.
1462   // http://crbug.com/105065.
1463   browser_process_->notification_ui_manager();
1464
1465   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1466     RegisterComponentsForUpdate();
1467
1468 #if defined(OS_ANDROID)
1469   chrome_variations::VariationsService* variations_service =
1470       browser_process_->variations_service();
1471   if (variations_service) {
1472     variations_service->set_policy_pref_service(profile_->GetPrefs());
1473     variations_service->StartRepeatedVariationsSeedFetch();
1474   }
1475   translate::TranslateDownloadManager::RequestLanguageList(
1476       profile_->GetPrefs());
1477
1478 #else
1479   // Most general initialization is behind us, but opening a
1480   // tab and/or session restore and such is still to be done.
1481   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1482
1483   // We are in regular browser boot sequence. Open initial tabs and enter the
1484   // main message loop.
1485   int result_code;
1486 #if defined(OS_CHROMEOS)
1487   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1488   // them this early as the cryptohome hasn't yet been mounted (which happens
1489   // only once we log in.
1490   std::vector<Profile*> last_opened_profiles;
1491 #else
1492   std::vector<Profile*> last_opened_profiles =
1493       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1494 #endif
1495
1496   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1497                               profile_, last_opened_profiles, &result_code)) {
1498 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1499     // Initialize autoupdate timer. Timer callback costs basically nothing
1500     // when browser is not in persistent mode, so it's OK to let it ride on
1501     // the main thread. This needs to be done here because we don't want
1502     // to start the timer when Chrome is run inside a test harness.
1503     browser_process_->StartAutoupdateTimer();
1504 #endif
1505
1506 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1507     // On Linux, the running exe will be updated if an upgrade becomes
1508     // available while the browser is running.  We need to save the last
1509     // modified time of the exe, so we can compare to determine if there is
1510     // an upgrade while the browser is kept alive by a persistent extension.
1511     upgrade_util::SaveLastModifiedTimeOfExe();
1512 #endif
1513
1514     // Record now as the last successful chrome start.
1515     GoogleUpdateSettings::SetLastRunTime();
1516
1517 #if defined(OS_MACOSX)
1518     // Call Recycle() here as late as possible, before going into the loop
1519     // because Start() will add things to it while creating the main window.
1520     if (parameters().autorelease_pool)
1521       parameters().autorelease_pool->Recycle();
1522 #endif
1523
1524     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1525     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1526
1527     // If we're running tests (ui_task is non-null), then we don't want to
1528     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1529     // RequestLanguageList
1530     if (parameters().ui_task == NULL) {
1531       // Request new variations seed information from server.
1532       chrome_variations::VariationsService* variations_service =
1533           browser_process_->variations_service();
1534       if (variations_service) {
1535         variations_service->StartRepeatedVariationsSeedFetch();
1536
1537 #if defined(OS_WIN)
1538         variations_service->StartGoogleUpdateRegistrySync();
1539 #endif
1540       }
1541
1542       translate::TranslateDownloadManager::RequestLanguageList(
1543           profile_->GetPrefs());
1544     }
1545
1546     run_message_loop_ = true;
1547   } else {
1548     run_message_loop_ = false;
1549   }
1550   browser_creator_.reset();
1551 #endif  // !defined(OS_ANDROID)
1552
1553   performance_monitor::PerformanceMonitor::GetInstance()->Initialize();
1554
1555 #if !defined(OS_ANDROID)
1556   process_power_collector_.reset(new ProcessPowerCollector);
1557   process_power_collector_->Initialize();
1558 #endif
1559
1560   PostBrowserStart();
1561
1562   if (parameters().ui_task) {
1563     // We end the startup timer here if we have parameters to run, because we
1564     // never start to run the main loop (where we normally stop the timer).
1565     startup_timer_->SignalStartupComplete(
1566         performance_monitor::StartupTimer::STARTUP_TEST);
1567     parameters().ui_task->Run();
1568     delete parameters().ui_task;
1569     run_message_loop_ = false;
1570   }
1571 #if defined(OS_ANDROID)
1572   // We never run the C++ main loop on Android, since the UI thread message
1573   // loop is controlled by the OS, so this is as close as we can get to
1574   // the start of the main loop
1575   if (result_code_ <= 0) {
1576     RecordBrowserStartupTime();
1577   }
1578 #endif
1579   return result_code_;
1580 }
1581
1582 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1583   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1584 #if defined(OS_ANDROID)
1585   // Chrome on Android does not use default MessageLoop. It has its own
1586   // Android specific MessageLoop
1587   NOTREACHED();
1588   return true;
1589 #else
1590   // Set the result code set in PreMainMessageLoopRun or set above.
1591   *result_code = result_code_;
1592   if (!run_message_loop_)
1593     return true;  // Don't run the default message loop.
1594
1595   // These should be invoked as close to the start of the browser's
1596   // UI thread message loop as possible to get a stable measurement
1597   // across versions.
1598   RecordBrowserStartupTime();
1599   startup_timer_->SignalStartupComplete(
1600       performance_monitor::StartupTimer::STARTUP_NORMAL);
1601
1602   DCHECK(base::MessageLoopForUI::IsCurrent());
1603   base::RunLoop run_loop;
1604
1605   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1606
1607   metrics::MetricsService::SetExecutionPhase(
1608       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1609       g_browser_process->local_state());
1610   run_loop.Run();
1611
1612   return true;
1613 #endif
1614 }
1615
1616 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1617   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1618 #if defined(OS_ANDROID)
1619   // Chrome on Android does not use default MessageLoop. It has its own
1620   // Android specific MessageLoop
1621   NOTREACHED();
1622 #else
1623
1624   // Start watching for jank during shutdown. It gets disarmed when
1625   // |shutdown_watcher_| object is destructed.
1626   metrics::MetricsService::SetExecutionPhase(
1627       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1628       g_browser_process->local_state());
1629   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1630
1631   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1632   startup_watcher_->Disarm();
1633
1634   // Remove observers attached to D-Bus clients before DbusThreadManager is
1635   // shut down.
1636   process_power_collector_.reset();
1637
1638   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1639     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1640
1641   // Some tests don't set parameters.ui_task, so they started translate
1642   // language fetch that was never completed so we need to cleanup here
1643   // otherwise it will be done by the destructor in a wrong thread.
1644   TranslateService::Shutdown(parameters().ui_task == NULL);
1645
1646   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1647     process_singleton_->Cleanup();
1648
1649   // Stop all tasks that might run on WatchDogThread.
1650   ThreadWatcherList::StopWatchingAll();
1651
1652   browser_process_->metrics_service()->Stop();
1653
1654   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1655   browser_process_->StartTearDown();
1656 #endif
1657 }
1658
1659 void ChromeBrowserMainParts::PostDestroyThreads() {
1660 #if defined(OS_ANDROID)
1661   // On Android, there is no quit/exit. So the browser's main message loop will
1662   // not finish.
1663   NOTREACHED();
1664 #else
1665   browser_process_->PostDestroyThreads();
1666   // browser_shutdown takes care of deleting browser_process, so we need to
1667   // release it.
1668   ignore_result(browser_process_.release());
1669   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1670   master_prefs_.reset();
1671   process_singleton_.reset();
1672
1673   // We need to do this check as late as possible, but due to modularity, this
1674   // may be the last point in Chrome.  This would be more effective if done at
1675   // a higher level on the stack, so that it is impossible for an early return
1676   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1677   // paths from content/browser/browser_main.
1678   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1679
1680 #if defined(OS_CHROMEOS)
1681   chromeos::CrosSettings::Shutdown();
1682 #endif
1683 #endif
1684 }
1685
1686 // Public members:
1687
1688 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1689   chrome_extra_parts_.push_back(parts);
1690 }