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/file_util.h"
  18 #include "base/files/file_path.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/component_updater_service.h"
  47 #include "chrome/browser/component_updater/flash_component_installer.h"
  48 #include "chrome/browser/component_updater/pnacl/pnacl_component_installer.h"
  49 #include "chrome/browser/component_updater/recovery_component_installer.h"
  50 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  51 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  52 #include "chrome/browser/defaults.h"
  53 #include "chrome/browser/extensions/extension_service.h"
  54 #include "chrome/browser/extensions/startup_helper.h"
  55 #include "chrome/browser/feedback/feedback_profile_observer.h"
  56 #include "chrome/browser/first_run/first_run.h"
  57 #include "chrome/browser/first_run/upgrade_util.h"
  58 #include "chrome/browser/google/google_search_counter.h"
  59 #include "chrome/browser/google/google_util.h"
  60 #include "chrome/browser/gpu/gl_string_manager.h"
  61 #include "chrome/browser/jankometer.h"
  62 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  63 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  64 #include "chrome/browser/metrics/metrics_log.h"
  65 #include "chrome/browser/metrics/metrics_service.h"
  66 #include "chrome/browser/metrics/thread_watcher.h"
  67 #include "chrome/browser/metrics/tracking_synchronizer.h"
  68 #include "chrome/browser/metrics/variations/variations_http_header_provider.h"
  69 #include "chrome/browser/metrics/variations/variations_service.h"
  70 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  71 #include "chrome/browser/net/chrome_net_log.h"
  72 #include "chrome/browser/net/crl_set_fetcher.h"
  73 #include "chrome/browser/notifications/desktop_notification_service.h"
  74 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  75 #include "chrome/browser/performance_monitor/performance_monitor.h"
  76 #include "chrome/browser/performance_monitor/startup_timer.h"
  77 #include "chrome/browser/plugins/plugin_prefs.h"
  78 #include "chrome/browser/pref_service_flags_storage.h"
  79 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  80 #include "chrome/browser/prefs/command_line_pref_store.h"
  81 #include "chrome/browser/prefs/pref_metrics_service.h"
  82 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  83 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  84 #include "chrome/browser/process_singleton.h"
  85 #include "chrome/browser/profiles/profile.h"
  86 #include "chrome/browser/profiles/profile_manager.h"
  87 #include "chrome/browser/profiles/profiles_state.h"
  88 #include "chrome/browser/shell_integration.h"
  89 #include "chrome/browser/three_d_api_observer.h"
  90 #include "chrome/browser/translate/translate_service.h"
  91 #include "chrome/browser/ui/app_list/app_list_service.h"
  92 #include "chrome/browser/ui/browser.h"
  93 #include "chrome/browser/ui/browser_finder.h"
  94 #include "chrome/browser/ui/host_desktop.h"
  95 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  96 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  97 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  98 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  99 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 100 #include "chrome/common/chrome_constants.h"
 101 #include "chrome/common/chrome_paths.h"
 102 #include "chrome/common/chrome_result_codes.h"
 103 #include "chrome/common/chrome_switches.h"
 104 #include "chrome/common/crash_keys.h"
 105 #include "chrome/common/env_vars.h"
 106 #include "chrome/common/logging_chrome.h"
 107 #include "chrome/common/net/net_resource_provider.h"
 108 #include "chrome/common/pref_names.h"
 109 #include "chrome/common/profiling.h"
 110 #include "chrome/installer/util/google_update_settings.h"
 111 #include "components/language_usage_metrics/language_usage_metrics.h"
 112 #include "components/nacl/browser/nacl_browser.h"
 113 #include "components/nacl/browser/nacl_process_host.h"
 114 #include "components/rappor/rappor_service.h"
 115 #include "components/signin/core/common/profile_management_switches.h"
 116 #include "components/startup_metric_utils/startup_metric_utils.h"
 117 #include "components/translate/core/browser/translate_download_manager.h"
 118 #include "content/public/browser/browser_thread.h"
 119 #include "content/public/browser/notification_observer.h"
 120 #include "content/public/browser/notification_registrar.h"
 121 #include "content/public/browser/notification_service.h"
 122 #include "content/public/browser/notification_types.h"
 123 #include "content/public/browser/site_instance.h"
 124 #include "content/public/common/content_client.h"
 125 #include "content/public/common/content_switches.h"
 126 #include "content/public/common/main_function_params.h"
 127 #include "extensions/browser/extension_protocols.h"
 128 #include "extensions/browser/extension_system.h"
 129 #include "grit/app_locale_settings.h"
 130 #include "grit/browser_resources.h"
 131 #include "grit/chromium_strings.h"
 132 #include "grit/generated_resources.h"
 133 #include "grit/platform_locale_settings.h"
 134 #include "net/base/net_module.h"
 135 #include "net/base/sdch_manager.h"
 136 #include "net/cookies/cookie_monster.h"
 137 #include "net/http/http_network_layer.h"
 138 #include "net/http/http_stream_factory.h"
 139 #include "net/url_request/url_request.h"
 140 #include "ui/base/l10n/l10n_util.h"
 141 #include "ui/base/layout.h"
 142 #include "ui/base/resource/resource_bundle.h"
 143
 144 #if defined(OS_ANDROID)
 145 #include "chrome/browser/metrics/thread_watcher_android.h"
 146 #endif
 147
 148 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 149 #include "chrome/browser/first_run/upgrade_util_linux.h"
 150 #include "chrome/browser/sxs_linux.h"
 151 #endif
 152
 153 #if defined(OS_CHROMEOS)
 154 #include "chrome/browser/chromeos/settings/cros_settings.h"
 155 #include "chromeos/chromeos_switches.h"
 156 #include "chromeos/settings/cros_settings_names.h"
 157 #endif
 158
 159 // TODO(port): several win-only methods have been pulled out of this, but
 160 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 161 // other platforms. For now, it's just a stub. This is a serious work in
 162 // progress and should not be taken as an indication of a real refactoring.
 163
 164 #if defined(OS_WIN)
 165 #include "base/environment.h"  // For PreRead experiment.
 166 #include "base/win/windows_version.h"
 167 #include "chrome/browser/browser_util_win.h"
 168 #include "chrome/browser/chrome_browser_main_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/common/net/url_fixer_upper.h"
 173 #include "chrome/installer/util/helper.h"
 174 #include "chrome/installer/util/install_util.h"
 175 #include "chrome/installer/util/shell_util.h"
 176 #include "net/base/net_util.h"
 177 #include "ui/base/l10n/l10n_util_win.h"
 178 #include "ui/gfx/win/dpi.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(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
 189 #include "printing/printed_document.h"
 190 #endif
 191
 192 #if defined(ENABLE_RLZ)
 193 #include "chrome/browser/rlz/rlz.h"
 194 #endif
 195
 196 #if defined(ENABLE_WEBRTC)
 197 #include "chrome/browser/media/webrtc_log_util.h"
 198 #endif
 199
 200 #if defined(USE_AURA)
 201 #include "ui/aura/env.h"
 202 #endif
 203
 204 using content::BrowserThread;
 205
 206 namespace {
 207
 208 // This function provides some ways to test crash and assertion handling
 209 // behavior of the program.
 210 void HandleTestParameters(const CommandLine& command_line) {
 211   // This parameter causes an assertion.
 212   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
 213     DCHECK(false);
 214   }
 215
 216   // This parameter causes a null pointer crash (crash reporter trigger).
 217   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 218     int* bad_pointer = NULL;
 219     *bad_pointer = 0;
 220   }
 221 }
 222
 223 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 224 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 225                         const std::vector<GURL>& new_tabs) {
 226   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 227        it != new_tabs.end(); ++it) {
 228     if (it->is_valid())
 229       browser_creator->AddFirstRunTab(*it);
 230   }
 231 }
 232 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 233
 234 // Returns the new local state object, guaranteed non-NULL.
 235 // |local_state_task_runner| must be a shutdown-blocking task runner.
 236 PrefService* InitializeLocalState(
 237     base::SequencedTaskRunner* local_state_task_runner,
 238     const CommandLine& parsed_command_line) {
 239   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 240   base::FilePath local_state_path;
 241   PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 242   bool local_state_file_exists = base::PathExists(local_state_path);
 243
 244   // Load local state.  This includes the application locale so we know which
 245   // locale dll to load.  This also causes local state prefs to be registered.
 246   PrefService* local_state = g_browser_process->local_state();
 247   DCHECK(local_state);
 248
 249 #if defined(OS_WIN)
 250   if (first_run::IsChromeFirstRun()) {
 251     // During first run we read the google_update registry key to find what
 252     // language the user selected when downloading the installer. This
 253     // becomes our default language in the prefs.
 254     // Other platforms obey the system locale.
 255     base::string16 install_lang;
 256     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 257       local_state->SetString(prefs::kApplicationLocale,
 258                              base::UTF16ToASCII(install_lang));
 259     }
 260   }
 261 #endif  // defined(OS_WIN)
 262
 263   // If the local state file for the current profile doesn't exist and the
 264   // parent profile command line flag is present, then we should inherit some
 265   // local state from the parent profile.
 266   // Checking that the local state file for the current profile doesn't exist
 267   // is the most robust way to determine whether we need to inherit or not
 268   // since the parent profile command line flag can be present even when the
 269   // current profile is not a new one, and in that case we do not want to
 270   // inherit and reset the user's setting.
 271   //
 272   // TODO(mnissler): We should probably just instantiate a
 273   // JSONPrefStore here instead of an entire PrefService. Once this is
 274   // addressed, the call to browser_prefs::RegisterLocalState can move
 275   // to chrome_prefs::CreateLocalState.
 276   if (!local_state_file_exists &&
 277       parsed_command_line.HasSwitch(switches::kParentProfile)) {
 278     base::FilePath parent_profile =
 279         parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 280     scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 281     scoped_ptr<PrefService> parent_local_state(
 282         chrome_prefs::CreateLocalState(
 283             parent_profile,
 284             local_state_task_runner,
 285             g_browser_process->policy_service(),
 286             registry,
 287             false));
 288     registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 289     // Right now, we only inherit the locale setting from the parent profile.
 290     local_state->SetString(
 291         prefs::kApplicationLocale,
 292         parent_local_state->GetString(prefs::kApplicationLocale));
 293   }
 294
 295 #if defined(OS_CHROMEOS)
 296   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 297     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 298     // Ensure that we start with owner's locale.
 299     if (!owner_locale.empty() &&
 300         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 301         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 302       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 303     }
 304   }
 305 #endif
 306
 307   return local_state;
 308 }
 309
 310 // Initializes the primary profile, possibly doing some user prompting to pick
 311 // a fallback profile. Returns the newly created profile, or NULL if startup
 312 // should not continue.
 313 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 314                               const base::FilePath& user_data_dir,
 315                               const CommandLine& parsed_command_line) {
 316   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 317   base::Time start = base::Time::Now();
 318   if (profiles::IsMultipleProfilesEnabled() &&
 319       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 320     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
 321         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 322     // Clear kProfilesLastActive since the user only wants to launch a specific
 323     // profile.
 324     ListPrefUpdate update(g_browser_process->local_state(),
 325                           prefs::kProfilesLastActive);
 326     base::ListValue* profile_list = update.Get();
 327     profile_list->Clear();
 328   }
 329
 330   Profile* profile = NULL;
 331 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 332   // On ChromeOS and Android the ProfileManager will use the same path as the
 333   // one we got passed. GetActiveUserProfile will therefore use the correct path
 334   // automatically.
 335   DCHECK_EQ(user_data_dir.value(),
 336             g_browser_process->profile_manager()->user_data_dir().value());
 337   profile = ProfileManager::GetActiveUserProfile();
 338 #else
 339   base::FilePath profile_path =
 340       GetStartupProfilePath(user_data_dir, parsed_command_line);
 341   profile = g_browser_process->profile_manager()->GetProfile(
 342       profile_path);
 343
 344   // If we're using the --new-profile-management flag and this profile is
 345   // signed out, then we should show the user manager instead. By switching
 346   // the active profile to the guest profile we ensure that no
 347   // browser windows will be opened for the guest profile.
 348   if (switches::IsNewProfileManagement() && !profile->IsGuestSession()) {
 349     ProfileInfoCache& cache =
 350         g_browser_process->profile_manager()->GetProfileInfoCache();
 351     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 352
 353     if (cache.ProfileIsSigninRequiredAtIndex(profile_index))
 354       profile = g_browser_process->profile_manager()->GetProfile(
 355           ProfileManager::GetGuestProfilePath());
 356   }
 357 #endif
 358   if (profile) {
 359     UMA_HISTOGRAM_LONG_TIMES(
 360         "Startup.CreateFirstProfile", base::Time::Now() - start);
 361     return profile;
 362   }
 363
 364 #if !defined(OS_WIN)
 365   // TODO(port): fix this.  See comments near the definition of
 366   // user_data_dir.  It is better to CHECK-fail here than it is to
 367   // silently exit because of missing code in the above test.
 368   CHECK(profile) << "Cannot get default profile.";
 369 #endif
 370
 371   return NULL;
 372 }
 373
 374 #if defined(OS_MACOSX)
 375 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 376                           SecKeychainCallbackInfo* info, void* context) {
 377   return noErr;
 378 }
 379 #endif
 380
 381 void RegisterComponentsForUpdate(const CommandLine& command_line) {
 382   component_updater::ComponentUpdateService* cus =
 383       g_browser_process->component_updater();
 384
 385   // Registration can be before or after cus->Start() so it is ok to post
 386   // a task to the UI thread to do registration once you done the necessary
 387   // file IO to know you existing component version.
 388 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 389   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 390   RegisterPepperFlashComponent(cus);
 391   RegisterSwiftShaderComponent(cus);
 392 #endif
 393
 394 #if !defined(OS_ANDROID)
 395   g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(
 396       cus, command_line);
 397 #endif
 398
 399 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 400   RegisterWidevineCdmComponent(cus);
 401 #endif
 402
 403 #if !defined(OS_CHROMEOS)
 404   // CRLSetFetcher attempts to load a CRL set from either the local disk or
 405   // network.
 406   if (!command_line.HasSwitch(switches::kDisableCRLSets))
 407     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus);
 408 #endif
 409
 410 #if defined(CLD2_DYNAMIC_MODE) && defined(CLD2_IS_COMPONENT)
 411   RegisterCldComponent(cus);
 412 #endif
 413
 414   cus->Start();
 415 }
 416
 417 #if !defined(OS_ANDROID)
 418 bool ProcessSingletonNotificationCallback(
 419     const CommandLine& command_line,
 420     const base::FilePath& current_directory) {
 421   // Drop the request if the browser process is already in shutdown path.
 422   if (!g_browser_process || g_browser_process->IsShuttingDown())
 423     return false;
 424
 425   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 426     std::string start_time_string =
 427         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 428     int64 remote_start_time;
 429     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 430       base::TimeDelta elapsed =
 431           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 432       if (command_line.HasSwitch(switches::kFastStart)) {
 433         UMA_HISTOGRAM_LONG_TIMES(
 434             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 435       } else {
 436         UMA_HISTOGRAM_LONG_TIMES(
 437             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 438       }
 439     }
 440   }
 441
 442   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 443       command_line);
 444
 445   base::FilePath user_data_dir =
 446       g_browser_process->profile_manager()->user_data_dir();
 447   base::FilePath startup_profile_dir =
 448       GetStartupProfilePath(user_data_dir, command_line);
 449
 450   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 451       command_line, current_directory, startup_profile_dir);
 452   return true;
 453 }
 454 #endif  // !defined(OS_ANDROID)
 455
 456 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
 457   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 458     std::string port_str =
 459         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 460     int port;
 461     if (base::StringToInt(port_str, &port) && port > 0 && port < 65535) {
 462       g_browser_process->CreateDevToolsHttpProtocolHandler(
 463           chrome::HOST_DESKTOP_TYPE_NATIVE,
 464           "127.0.0.1",
 465           port);
 466     } else {
 467       DLOG(WARNING) << "Invalid http debugger port number " << port;
 468     }
 469   }
 470 }
 471
 472 // Heap allocated class that listens for first page load, kicks off stat
 473 // recording and then deletes itself.
 474 class LoadCompleteListener : public content::NotificationObserver {
 475  public:
 476   LoadCompleteListener() {
 477     registrar_.Add(this,
 478                    content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
 479                    content::NotificationService::AllSources());
 480   }
 481   virtual ~LoadCompleteListener() {}
 482
 483   // content::NotificationObserver implementation.
 484   virtual void Observe(int type,
 485                        const content::NotificationSource& source,
 486                        const content::NotificationDetails& details) OVERRIDE {
 487     DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type);
 488     startup_metric_utils::OnInitialPageLoadComplete();
 489     delete this;
 490   }
 491
 492  private:
 493   content::NotificationRegistrar registrar_;
 494   DISALLOW_COPY_AND_ASSIGN(LoadCompleteListener);
 495 };
 496
 497 }  // namespace
 498
 499 namespace chrome_browser {
 500
 501 // This error message is not localized because we failed to load the
 502 // localization data files.
 503 #if defined(OS_WIN)
 504 const char kMissingLocaleDataTitle[] = "Missing File Error";
 505 #endif
 506
 507 #if defined(OS_WIN)
 508 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 509 const char kMissingLocaleDataMessage[] =
 510     "Unable to find locale data files. Please reinstall.";
 511 #endif
 512
 513 }  // namespace chrome_browser
 514
 515 // BrowserMainParts ------------------------------------------------------------
 516
 517 // static
 518 bool ChromeBrowserMainParts::disable_enforcing_cookie_policies_for_tests_ =
 519     false;
 520
 521 ChromeBrowserMainParts::ChromeBrowserMainParts(
 522     const content::MainFunctionParams& parameters)
 523     : parameters_(parameters),
 524       parsed_command_line_(parameters.command_line),
 525       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 526       startup_watcher_(new StartupTimeBomb()),
 527       shutdown_watcher_(new ShutdownWatcherHelper()),
 528       startup_timer_(new performance_monitor::StartupTimer()),
 529       browser_field_trials_(parameters.command_line),
 530       profile_(NULL),
 531       run_message_loop_(true),
 532       notify_result_(ProcessSingleton::PROCESS_NONE),
 533       local_state_(NULL),
 534       restart_last_session_(false) {
 535   // If we're running tests (ui_task is non-null).
 536   if (parameters.ui_task)
 537     browser_defaults::enable_help_app = false;
 538
 539   // Chrome disallows cookies by default. All code paths that want to use
 540   // cookies need to go through one of Chrome's URLRequestContexts which have
 541   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 542   if (!disable_enforcing_cookie_policies_for_tests_)
 543     net::URLRequest::SetDefaultCookiePolicyToBlock();
 544 }
 545
 546 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 547   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 548     delete chrome_extra_parts_[i];
 549   chrome_extra_parts_.clear();
 550 }
 551
 552 // This will be called after the command-line has been mutated by about:flags
 553 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 554   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 555   // Must initialize metrics after labs have been converted into switches,
 556   // but before field trials are set up (so that client ID is available for
 557   // one-time randomized field trials).
 558 #if defined(ARCH_CPU_64_BITS)
 559   MetricsLog::set_version_extension("-64");
 560 #endif  // defined(ARCH_CPU_64_BITS)
 561
 562   // Initialize FieldTrialList to support FieldTrials that use one-time
 563   // randomization.
 564   MetricsService* metrics = browser_process_->metrics_service();
 565   field_trial_list_.reset(
 566       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 567
 568   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 569   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 570     base::FieldTrial::EnableBenchmarking();
 571
 572   // Ensure any field trials specified on the command line are initialized.
 573   // Also stop the metrics service so that we don't pollute UMA.
 574   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 575     std::set<std::string> unforceable_field_trials;
 576 #if defined(OFFICIAL_BUILD)
 577     unforceable_field_trials.insert("SettingsEnforcement");
 578 #endif  // defined(OFFICIAL_BUILD)
 579
 580     // Create field trials without activating them, so that this behaves in a
 581     // consistent manner with field trials created from the server.
 582     bool result = base::FieldTrialList::CreateTrialsFromString(
 583         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 584         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 585         unforceable_field_trials);
 586     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 587                   << " list specified.";
 588   }
 589   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 590     // Create default variation ids which will always be included in the
 591     // X-Client-Data request header.
 592     chrome_variations::VariationsHttpHeaderProvider* provider =
 593         chrome_variations::VariationsHttpHeaderProvider::GetInstance();
 594     bool result = provider->SetDefaultVariationIds(
 595         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 596     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 597                   << " list specified.";
 598   }
 599   chrome_variations::VariationsService* variations_service =
 600       browser_process_->variations_service();
 601   if (variations_service)
 602     variations_service->CreateTrialsFromSeed();
 603
 604   // This must be called after the local state is initialized.
 605   browser_field_trials_.SetupFieldTrials(local_state_);
 606
 607   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 608   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 609   // Even though base::Bind does AddRef and Release, the object will not be
 610   // deleted after the Task is executed.
 611   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 612
 613   // Now that field trials have been created, initializes metrics recording.
 614   metrics->InitializeMetricsRecordingState();
 615 }
 616
 617 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 618
 619 void ChromeBrowserMainParts::StartMetricsRecording() {
 620   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 621   MetricsService* metrics = g_browser_process->metrics_service();
 622
 623   const bool only_do_metrics_recording =
 624       parsed_command_line_.HasSwitch(switches::kMetricsRecordingOnly) ||
 625       parsed_command_line_.HasSwitch(switches::kEnableBenchmarking);
 626   if (only_do_metrics_recording) {
 627     // If we're testing then we don't care what the user preference is, we turn
 628     // on recording, but not reporting, otherwise tests fail.
 629     metrics->StartRecordingForTests();
 630     return;
 631   }
 632
 633   metrics->CheckForClonedInstall();
 634   const bool metrics_enabled = metrics->StartIfMetricsReportingEnabled();
 635   if (metrics_enabled) {
 636     // TODO(asvitkine): Since this function is not run on Android, RAPPOR is
 637     // currently disabled there. http://crbug.com/370041
 638     browser_process_->rappor_service()->Start(
 639         browser_process_->local_state(),
 640         browser_process_->system_request_context());
 641   }
 642 }
 643
 644 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 645   // Don't record any metrics if UI was displayed before this point e.g.
 646   // warning dialogs.
 647   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 648     return;
 649
 650 #if defined(OS_ANDROID)
 651   // On Android the first run is handled in Java code, and the C++ side of
 652   // Chrome doesn't know if this is the first run. This will cause some
 653   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 654   // rare).
 655   bool is_first_run = false;
 656 #else
 657   bool is_first_run = first_run::IsChromeFirstRun();
 658 #endif
 659
 660 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 661 // platforms.
 662 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 663   const base::Time process_creation_time =
 664       base::CurrentProcessInfo::CreationTime();
 665
 666   if (!is_first_run && !process_creation_time.is_null()) {
 667     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 668     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 669   }
 670 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 671
 672   // Record collected startup metrics.
 673   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 674
 675   // Deletes self.
 676   new LoadCompleteListener();
 677 }
 678
 679 // -----------------------------------------------------------------------------
 680 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 681
 682 #if defined(OS_WIN)
 683 #define DLLEXPORT __declspec(dllexport)
 684
 685 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 686 extern "C" {
 687 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 688 }
 689
 690 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 691   // Need an instance of AtExitManager to handle singleton creations and
 692   // deletions.  We need this new instance because, the old instance created
 693   // in ChromeMain() got destructed when the function returned.
 694   base::AtExitManager exit_manager;
 695   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 696 }
 697 #endif
 698
 699 // content::BrowserMainParts implementation ------------------------------------
 700
 701 void ChromeBrowserMainParts::PreEarlyInitialization() {
 702   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 703   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 704     chrome_extra_parts_[i]->PreEarlyInitialization();
 705 }
 706
 707 void ChromeBrowserMainParts::PostEarlyInitialization() {
 708   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 709   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 710     chrome_extra_parts_[i]->PostEarlyInitialization();
 711 }
 712
 713 void ChromeBrowserMainParts::ToolkitInitialized() {
 714   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 715   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 716     chrome_extra_parts_[i]->ToolkitInitialized();
 717 }
 718
 719 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 720   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 721   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 722     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 723 }
 724
 725 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 726   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 727   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 728     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 729 }
 730
 731 int ChromeBrowserMainParts::PreCreateThreads() {
 732   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 733   result_code_ = PreCreateThreadsImpl();
 734
 735   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 736 #if !defined(OS_ANDROID)
 737     // These members must be initialized before exiting this function normally.
 738     DCHECK(master_prefs_.get());
 739     DCHECK(browser_creator_.get());
 740 #endif
 741     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 742       chrome_extra_parts_[i]->PreCreateThreads();
 743   }
 744
 745   return result_code_;
 746 }
 747
 748 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 749   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 750   run_message_loop_ = false;
 751 #if !defined(OS_ANDROID)
 752   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 753 #endif
 754   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 755     return chrome::RESULT_CODE_MISSING_DATA;
 756
 757   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 758   MediaCaptureDevicesDispatcher::GetInstance();
 759
 760   // Android's first run is done in Java instead of native.
 761 #if !defined(OS_ANDROID)
 762   process_singleton_.reset(new ChromeProcessSingleton(
 763       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 764
 765   // Cache first run state early.
 766   first_run::IsChromeFirstRun();
 767 #endif
 768
 769   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 770       JsonPrefStore::GetTaskRunnerForFile(
 771           base::FilePath(chrome::kLocalStorePoolName),
 772           BrowserThread::GetBlockingPool());
 773
 774   {
 775     TRACE_EVENT0("startup",
 776       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 777     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 778                                                   parsed_command_line()));
 779   }
 780
 781   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 782     TRACE_EVENT0("startup",
 783         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 784     // User wants to override default tracking status.
 785     std::string flag =
 786       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 787     // Default to basic profiling (no parent child support).
 788     tracked_objects::ThreadData::Status status =
 789           tracked_objects::ThreadData::PROFILING_ACTIVE;
 790     if (flag.compare("0") != 0)
 791       status = tracked_objects::ThreadData::DEACTIVATED;
 792     else if (flag.compare("child") != 0)
 793       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 794     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 795   }
 796
 797   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 798     tracking_objects_.set_output_file_path(
 799         parsed_command_line().GetSwitchValuePath(
 800             switches::kProfilingOutputFile));
 801   }
 802
 803   local_state_ = InitializeLocalState(
 804       local_state_task_runner.get(), parsed_command_line());
 805
 806 #if !defined(OS_ANDROID)
 807   // These members must be initialized before returning from this function.
 808   master_prefs_.reset(new first_run::MasterPrefs);
 809   // Android doesn't use StartupBrowserCreator.
 810   browser_creator_.reset(new StartupBrowserCreator);
 811   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 812   chrome::UMABrowsingActivityObserver::Init();
 813 #endif
 814
 815 #if !defined(OS_CHROMEOS)
 816   // Convert active labs into switches. This needs to be done before
 817   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 818   // affected by experiment flags (--touch-optimized-ui in particular).
 819   // On ChromeOS system level flags are applied from the device settings from
 820   // the session manager.
 821   {
 822     TRACE_EVENT0("startup",
 823         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 824     about_flags::PrefServiceFlagsStorage flags_storage_(
 825         g_browser_process->local_state());
 826     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 827                                         CommandLine::ForCurrentProcess(),
 828                                         about_flags::kAddSentinels);
 829   }
 830 #endif
 831
 832   local_state_->UpdateCommandLinePrefStore(
 833       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 834
 835   // Reset the command line in the crash report details, since we may have
 836   // just changed it to include experiments.
 837   crash_keys::SetSwitchesFromCommandLine(CommandLine::ForCurrentProcess());
 838
 839   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 840   // needed when loading the MainMenu.nib and the language doesn't depend on
 841   // anything since it comes from Cocoa.
 842 #if defined(OS_MACOSX)
 843   std::string locale =
 844       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 845   browser_process_->SetApplicationLocale(locale);
 846 #else
 847   const std::string locale =
 848       local_state_->GetString(prefs::kApplicationLocale);
 849
 850   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 851   // method InitSharedInstance is ignored.
 852
 853   TRACE_EVENT_BEGIN0("startup",
 854       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 855   const std::string loaded_locale =
 856       ResourceBundle::InitSharedInstanceWithLocale(locale, NULL);
 857   TRACE_EVENT_END0("startup",
 858       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 859
 860   if (loaded_locale.empty() &&
 861       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 862     ShowMissingLocaleMessageBox();
 863     return chrome::RESULT_CODE_MISSING_DATA;
 864   }
 865   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 866   browser_process_->SetApplicationLocale(loaded_locale);
 867
 868   base::FilePath resources_pack_path;
 869   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 870   {
 871     TRACE_EVENT0("startup",
 872         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 873     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 874         resources_pack_path, ui::SCALE_FACTOR_NONE);
 875   }
 876 #endif  // defined(OS_MACOSX)
 877
 878   // Android does first run in Java instead of native.
 879   // Chrome OS has its own out-of-box-experience code.
 880 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 881   // On first run, we need to process the predictor preferences before the
 882   // browser's profile_manager object is created, but after ResourceBundle
 883   // is initialized.
 884   if (first_run::IsChromeFirstRun()) {
 885     first_run::ProcessMasterPreferencesResult pmp_result =
 886         first_run::ProcessMasterPreferences(user_data_dir_,
 887                                             master_prefs_.get());
 888     if (pmp_result == first_run::EULA_EXIT_NOW)
 889       return chrome::RESULT_CODE_EULA_REFUSED;
 890
 891     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 892         !parsed_command_line().HasSwitch(switches::kAppId) &&
 893         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 894       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 895     }
 896
 897     // TODO(macourteau): refactor preferences that are copied from
 898     // master_preferences into local_state, as a "local_state" section in
 899     // master preferences. If possible, a generic solution would be prefered
 900     // over a copy one-by-one of specific preferences. Also see related TODO
 901     // in first_run.h.
 902
 903     // Store the initial VariationsService seed in local state, if it exists
 904     // in master prefs.
 905     if (!master_prefs_->variations_seed.empty()) {
 906       local_state_->SetString(prefs::kVariationsSeed,
 907                               master_prefs_->variations_seed);
 908       if (!master_prefs_->variations_seed_signature.empty()) {
 909         local_state_->SetString(prefs::kVariationsSeedSignature,
 910                                 master_prefs_->variations_seed_signature);
 911       }
 912       // Set the variation seed date to the current system time. If the user's
 913       // clock is incorrect, this may cause some field trial expiry checks to
 914       // not do the right thing until the next seed update from the server,
 915       // when this value will be updated.
 916       local_state_->SetInt64(prefs::kVariationsSeedDate,
 917                              base::Time::Now().ToInternalValue());
 918     }
 919
 920     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 921       local_state_->SetString(
 922           prefs::kBrowserSuppressDefaultBrowserPrompt,
 923           master_prefs_->suppress_default_browser_prompt_for_version);
 924     }
 925
 926     AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->HandleFirstRun();
 927   }
 928 #endif
 929
 930 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 931   // Set the product channel for crash reports.
 932   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 933       chrome::VersionInfo::GetVersionStringModifier());
 934 #endif
 935
 936   // Initialize tracking synchronizer system.
 937   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 938
 939   // Now that all preferences have been registered, set the install date
 940   // for the uninstall metrics if this is our first run. This only actually
 941   // gets used if the user has metrics reporting enabled at uninstall time.
 942   int64 install_date = local_state_->GetInt64(prefs::kInstallDate);
 943   if (install_date == 0)
 944     local_state_->SetInt64(prefs::kInstallDate, base::Time::Now().ToTimeT());
 945
 946 #if defined(OS_MACOSX)
 947   // Get the Keychain API to register for distributed notifications on the main
 948   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 949   // which doesn't. This ensures those notifications will get delivered
 950   // properly. See issue 37766.
 951   // (Note that the callback mask here is empty. I don't want to register for
 952   // any callbacks, I just want to initialize the mechanism.)
 953   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 954 #endif
 955
 956 #if defined(OS_CHROMEOS)
 957   // Must be done after g_browser_process is constructed, before
 958   // SetupMetricsAndFieldTrials().
 959   chromeos::CrosSettings::Initialize();
 960 #endif
 961
 962   // Now the command line has been mutated based on about:flags, we can setup
 963   // metrics and initialize field trials. The field trials are needed by
 964   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
 965   SetupMetricsAndFieldTrials();
 966
 967   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
 968   browser_process_->PreCreateThreads();
 969
 970   return content::RESULT_CODE_NORMAL_EXIT;
 971 }
 972
 973 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
 974   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
 975   result_code_ = PreMainMessageLoopRunImpl();
 976
 977   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 978     chrome_extra_parts_[i]->PreMainMessageLoopRun();
 979 }
 980
 981 // PreMainMessageLoopRun calls these extra stages in the following order:
 982 //  PreMainMessageLoopRunImpl()
 983 //   ... initial setup, including browser_process_ setup.
 984 //   PreProfileInit()
 985 //   ... additional setup, including CreateProfile()
 986 //   PostProfileInit()
 987 //   ... additional setup
 988 //   PreBrowserStart()
 989 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
 990 //   PostBrowserStart()
 991
 992 void ChromeBrowserMainParts::PreProfileInit() {
 993   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
 994
 995   // Initialize the feedback uploader so it can setup notifications for profile
 996   // creation.
 997   feedback::FeedbackProfileObserver::Initialize();
 998
 999   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1000     chrome_extra_parts_[i]->PreProfileInit();
1001
1002 #if !defined(OS_ANDROID)
1003   ProfileManager* profile_manager = g_browser_process->profile_manager();
1004
1005   // First check if any ephemeral profiles are left behind because of browser
1006   // crash and schedule them for deletion and then proceed with getting the set
1007   // of profiles to open.
1008   ProfileInfoCache& profile_cache = profile_manager->GetProfileInfoCache();
1009   size_t profiles_count = profile_cache.GetNumberOfProfiles();
1010   std::vector<base::FilePath> profiles_to_delete;
1011   for (size_t i = 0; i < profiles_count; ++i) {
1012     if (profile_cache.ProfileIsEphemeralAtIndex(i))
1013       profiles_to_delete.push_back(profile_cache.GetPathOfProfileAtIndex(i));
1014   }
1015
1016   if (profiles_to_delete.size()) {
1017     for (size_t i = 0; i < profiles_to_delete.size(); ++i) {
1018       profile_manager->ScheduleProfileForDeletion(
1019           profiles_to_delete[i], ProfileManager::CreateCallback());
1020     }
1021     // Clean up stale profiles immediately after browser start.
1022     BrowserThread::PostTask(
1023         BrowserThread::FILE, FROM_HERE,
1024         base::Bind(&ProfileManager::CleanUpStaleProfiles, profiles_to_delete));
1025   }
1026 #endif  // OS_ANDROID
1027 }
1028
1029 void ChromeBrowserMainParts::PostProfileInit() {
1030   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1031   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1032   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1033     chrome_extra_parts_[i]->PostProfileInit();
1034 }
1035
1036 void ChromeBrowserMainParts::PreBrowserStart() {
1037   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1038   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1039     chrome_extra_parts_[i]->PreBrowserStart();
1040
1041   three_d_observer_.reset(new ThreeDAPIObserver());
1042 }
1043
1044 void ChromeBrowserMainParts::PostBrowserStart() {
1045   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1046   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1047     chrome_extra_parts_[i]->PostBrowserStart();
1048 #if !defined(OS_ANDROID)
1049   // Allow ProcessSingleton to process messages.
1050   process_singleton_->Unlock();
1051 #endif
1052 #if defined(ENABLE_WEBRTC)
1053   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1054   // to reduce the impact on startup time.
1055   BrowserThread::PostDelayedTask(
1056       BrowserThread::UI,
1057       FROM_HERE,
1058       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1059       base::TimeDelta::FromMinutes(1));
1060 #endif
1061 }
1062
1063 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1064   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1065   // Android updates the metrics service dynamically depending on whether the
1066   // application is in the foreground or not. Do not start here.
1067 #if !defined(OS_ANDROID)
1068   // Now that the file thread has been started, start recording.
1069   StartMetricsRecording();
1070 #endif
1071
1072   // Create watchdog thread after creating all other threads because it will
1073   // watch the other threads and they must be running.
1074   browser_process_->watchdog_thread();
1075
1076   // Do any initializating in the browser process that requires all threads
1077   // running.
1078   browser_process_->PreMainMessageLoopRun();
1079
1080   // Record last shutdown time into a histogram.
1081   browser_shutdown::ReadLastShutdownInfo();
1082
1083 #if defined(OS_WIN)
1084   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1085   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1086   // upgrade/uninstall happen separately.
1087   bool already_running = browser_util::IsBrowserAlreadyRunning();
1088
1089   // If the command line specifies 'uninstall' then we need to work here
1090   // unless we detect another chrome browser running.
1091   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1092     return DoUninstallTasks(already_running);
1093   }
1094
1095   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1096       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1097     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1098         parsed_command_line_);
1099   }
1100 #endif
1101
1102   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1103     return ShellIntegration::SetAsDefaultBrowser() ?
1104         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1105         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1106   }
1107
1108 #if defined(USE_AURA)
1109   // Make sure aura::Env has been initialized.
1110   CHECK(aura::Env::GetInstance());
1111 #endif
1112
1113   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1114 #if !defined(OS_ANDROID)
1115   // If the command line specifies --pack-extension, attempt the pack extension
1116   // startup action and exit.
1117   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1118     extensions::StartupHelper extension_startup_helper;
1119     if (extension_startup_helper.PackExtension(parsed_command_line()))
1120       return content::RESULT_CODE_NORMAL_EXIT;
1121     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1122   }
1123
1124   // If we're being launched just to check the connector policy, we are
1125   // short-lived and don't want to be passing that switch off.
1126   bool pass_command_line = !parsed_command_line().HasSwitch(
1127       switches::kCheckCloudPrintConnectorPolicy);
1128
1129   if (pass_command_line) {
1130     // When another process is running, use that process instead of starting a
1131     // new one. NotifyOtherProcess will currently give the other process up to
1132     // 20 seconds to respond. Note that this needs to be done before we attempt
1133     // to read the profile.
1134     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1135     switch (notify_result_) {
1136       case ProcessSingleton::PROCESS_NONE:
1137         // No process already running, fall through to starting a new one.
1138         break;
1139
1140       case ProcessSingleton::PROCESS_NOTIFIED:
1141 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1142         printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1143             l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1144 #endif
1145         // Having a differentiated return type for testing allows for tests to
1146         // verify proper handling of some switches. When not testing, stick to
1147         // the standard Unix convention of returning zero when things went as
1148         // expected.
1149         if (parsed_command_line().HasSwitch(switches::kTestType))
1150           return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1151         return content::RESULT_CODE_NORMAL_EXIT;
1152
1153       case ProcessSingleton::PROFILE_IN_USE:
1154         return chrome::RESULT_CODE_PROFILE_IN_USE;
1155
1156       case ProcessSingleton::LOCK_ERROR:
1157         LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1158                       "directory. This means that running multiple instances "
1159                       "would start multiple browser processes rather than "
1160                       "opening a new window in the existing process. Aborting "
1161                       "now to avoid profile corruption.";
1162         return chrome::RESULT_CODE_PROFILE_IN_USE;
1163
1164       default:
1165         NOTREACHED();
1166     }
1167   }
1168 #endif  // !defined(OS_ANDROID)
1169
1170   // Handle special early return paths (which couldn't be processed even earlier
1171   // as they require the process singleton to be held) first.
1172
1173   std::string try_chrome =
1174       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1175   if (!try_chrome.empty()) {
1176 #if defined(OS_WIN)
1177     // Setup.exe has determined that we need to run a retention experiment
1178     // and has lauched chrome to show the experiment UI. It is guaranteed that
1179     // no other Chrome is currently running as the process singleton was
1180     // sucessfully grabbed above.
1181     int try_chrome_int;
1182     base::StringToInt(try_chrome, &try_chrome_int);
1183     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1184         try_chrome_int,
1185         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1186                    base::Unretained(process_singleton_.get())));
1187     if (answer == TryChromeDialogView::NOT_NOW)
1188       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1189     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1190       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1191     // At this point the user is willing to try chrome again.
1192     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1193       // Only set in the unattended case, the interactive case is Windows 8.
1194       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1195           ShellIntegration::SET_DEFAULT_UNATTENDED)
1196         ShellIntegration::SetAsDefaultBrowser();
1197     }
1198 #else
1199     // We don't support retention experiments on Mac or Linux.
1200     return content::RESULT_CODE_NORMAL_EXIT;
1201 #endif  // defined(OS_WIN)
1202   }
1203
1204 #if defined(OS_WIN)
1205   // Do the tasks if chrome has been upgraded while it was last running.
1206   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1207     return content::RESULT_CODE_NORMAL_EXIT;
1208
1209   // Check if there is any machine level Chrome installed on the current
1210   // machine. If yes and the current Chrome process is user level, we do not
1211   // allow the user level Chrome to run. So we notify the user and uninstall
1212   // user level Chrome.
1213   // Note this check needs to happen here (after the process singleton was
1214   // obtained but before potentially creating the first run sentinel).
1215   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1216     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1217 #endif  // defined(OS_WIN)
1218
1219 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1220   if (sxs_linux::ShouldMigrateUserDataDir())
1221     return sxs_linux::MigrateUserDataDir();
1222 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1223
1224   // Desktop construction occurs here, (required before profile creation).
1225   PreProfileInit();
1226
1227   // Profile creation ----------------------------------------------------------
1228
1229   MetricsService::SetExecutionPhase(MetricsService::CREATE_PROFILE);
1230   profile_ = CreatePrimaryProfile(parameters(),
1231                                   user_data_dir_,
1232                                   parsed_command_line());
1233   if (!profile_)
1234     return content::RESULT_CODE_NORMAL_EXIT;
1235
1236 #if !defined(OS_ANDROID)
1237   // The first run sentinel must be created after the process singleton was
1238   // grabbed and no early return paths were otherwise hit above.
1239   first_run::CreateSentinelIfNeeded();
1240 #endif  // !defined(OS_ANDROID)
1241
1242 #if defined(ENABLE_BACKGROUND)
1243   // Autoload any profiles which are running background apps.
1244   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1245   browser_process_->profile_manager()->AutoloadProfiles();
1246 #endif
1247   // Post-profile init ---------------------------------------------------------
1248
1249   TranslateService::Initialize();
1250
1251   // Needs to be done before PostProfileInit, since login manager on CrOS is
1252   // called inside PostProfileInit.
1253   content::WebUIControllerFactory::RegisterFactory(
1254       ChromeWebUIControllerFactory::GetInstance());
1255
1256   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1257   // So make sure to create it before that.
1258 #if !defined(DISABLE_NACL)
1259   NaClBrowserDelegateImpl* delegate = new NaClBrowserDelegateImpl(
1260     extensions::ExtensionSystem::Get(profile_)->info_map());
1261   nacl::NaClBrowser::SetDelegate(delegate);
1262 #endif
1263
1264   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1265   // (requires supporting early exit).
1266   PostProfileInit();
1267
1268   // Retrieve cached GL strings from local state and use them for GPU
1269   // blacklist decisions.
1270   if (g_browser_process->gl_string_manager())
1271     g_browser_process->gl_string_manager()->Initialize();
1272
1273   // Create an instance of GpuModeManager to watch gpu mode pref change.
1274   g_browser_process->gpu_mode_manager();
1275
1276 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1277   // Show the First Run UI if this is the first time Chrome has been run on
1278   // this computer, or we're being compelled to do so by a command line flag.
1279   // Note that this be done _after_ the PrefService is initialized and all
1280   // preferences are registered, since some of the code that the importer
1281   // touches reads preferences.
1282   if (first_run::IsChromeFirstRun()) {
1283     first_run::AutoImport(profile_,
1284                           master_prefs_->homepage_defined,
1285                           master_prefs_->do_import_items,
1286                           master_prefs_->dont_import_items,
1287                           master_prefs_->import_bookmarks_path);
1288
1289     // Note: this can pop the first run consent dialog on linux.
1290     first_run::DoPostImportTasks(profile_,
1291                                  master_prefs_->make_chrome_default_for_user);
1292
1293     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1294       browser_creator_->set_show_main_browser_window(
1295           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1296     } else {
1297       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1298     }
1299   }
1300 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1301
1302 #if defined(OS_WIN)
1303   // Sets things up so that if we crash from this point on, a dialog will
1304   // popup asking the user to restart chrome. It is done this late to avoid
1305   // testing against a bunch of special cases that are taken care early on.
1306   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1307       parsed_command_line());
1308
1309   // Registers Chrome with the Windows Restart Manager, which will restore the
1310   // Chrome session when the computer is restarted after a system update.
1311   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1312   // but should run on startup if extended to handle crashes/hangs/patches.
1313   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1314   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1315     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1316         parsed_command_line());
1317   }
1318
1319   // Verify that the profile is not on a network share and if so prepare to show
1320   // notification to the user.
1321   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1322     content::BrowserThread::PostTask(content::BrowserThread::FILE, FROM_HERE,
1323         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1324                    profile_->GetPath()));
1325   }
1326 #endif  // OS_WIN
1327
1328 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1329   // Init the RLZ library. This just binds the dll and schedules a task on the
1330   // file thread to be run sometime later. If this is the first run we record
1331   // the installation event.
1332   PrefService* pref_service = profile_->GetPrefs();
1333   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1334       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1335   // Negative ping delay means to send ping immediately after a first search is
1336   // recorded.
1337   RLZTracker::InitRlzFromProfileDelayed(
1338       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1339       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1340 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1341
1342   // Configure modules that need access to resources.
1343   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1344
1345   // In unittest mode, this will do nothing.  In normal mode, this will create
1346   // the global IntranetRedirectDetector instance, which will promptly go to
1347   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1348   // to see if it should do anything else.
1349   //
1350   // A simpler way of doing all this would be to have some function which could
1351   // give the time elapsed since startup, and simply have this object check that
1352   // when asked to initialize itself, but this doesn't seem to exist.
1353   //
1354   // This can't be created in the BrowserProcessImpl constructor because it
1355   // needs to read prefs that get set after that runs.
1356   browser_process_->intranet_redirect_detector();
1357   GoogleSearchCounter::RegisterForNotifications();
1358
1359   if (parsed_command_line().HasSwitch(switches::kEnableSdchOverHttps)) {
1360     net::SdchManager::EnableSecureSchemeSupport(true);
1361   } else {
1362     // Check SDCH field trial.
1363     const char kSdchFieldTrialName[] = "SDCH";
1364     const char kEnabledAllGroupName[] = "EnabledAll";
1365     const char kEnabledHttpOnlyGroupName[] = "EnabledHttpOnly";
1366     const char kDisabledAllGroupName[] = "DisabledAll";
1367
1368     base::StringPiece sdch_trial_group =
1369         base::FieldTrialList::FindFullName(kSdchFieldTrialName);
1370     if (sdch_trial_group.starts_with(kEnabledAllGroupName)) {
1371       net::SdchManager::EnableSecureSchemeSupport(true);
1372       net::SdchManager::EnableSdchSupport(true);
1373     } else if (sdch_trial_group.starts_with(kEnabledHttpOnlyGroupName)) {
1374       net::SdchManager::EnableSdchSupport(true);
1375     } else if (sdch_trial_group.starts_with(kDisabledAllGroupName)) {
1376       net::SdchManager::EnableSdchSupport(false);
1377     }
1378   }
1379
1380   if (parsed_command_line().HasSwitch(switches::kEnableWatchdog))
1381     InstallJankometer(parsed_command_line());
1382
1383 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
1384   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1385     base::FilePath path =
1386         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1387     printing::PrintedDocument::set_debug_dump_path(path);
1388   }
1389 #endif
1390
1391   HandleTestParameters(parsed_command_line());
1392   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1393       base::debug::BeingDebugged());
1394
1395   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1396       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1397   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1398       browser_process_->GetApplicationLocale());
1399
1400   // Start watching for hangs during startup. We disarm this hang detector when
1401   // ThreadWatcher takes over or when browser is shutdown or when
1402   // startup_watcher_ is deleted.
1403   MetricsService::SetExecutionPhase(MetricsService::STARTUP_TIMEBOMB_ARM);
1404   startup_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1405
1406   // On mobile, need for clean shutdown arises only when the application comes
1407   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1408   // http://crbug.com/179143
1409 #if !defined(OS_ANDROID)
1410   // Start watching for a hang.
1411   MetricsService::LogNeedForCleanShutdown();
1412 #endif
1413
1414 #if defined(ENABLE_FULL_PRINTING)
1415   // Create the instance of the cloud print proxy service so that it can launch
1416   // the service process if needed. This is needed because the service process
1417   // might have shutdown because an update was available.
1418   // TODO(torne): this should maybe be done with
1419   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1420   // instead?
1421   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1422 #endif
1423
1424   // Start watching all browser threads for responsiveness.
1425   MetricsService::SetExecutionPhase(MetricsService::THREAD_WATCHER_START);
1426   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1427
1428 #if defined(OS_ANDROID)
1429   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1430 #endif
1431
1432 #if !defined(DISABLE_NACL)
1433   content::BrowserThread::PostTask(
1434       content::BrowserThread::IO,
1435       FROM_HERE,
1436       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1437 #endif
1438
1439   // Make sure initial prefs are recorded
1440   PrefMetricsService::Factory::GetForProfile(profile_);
1441
1442   PreBrowserStart();
1443
1444   // Instantiate the notification UI manager, as this triggers a perf timer
1445   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1446   // triggering the timer and call that explicitly in the approprate place.
1447   // http://crbug.com/105065.
1448   browser_process_->notification_ui_manager();
1449
1450   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1451     RegisterComponentsForUpdate(parsed_command_line());
1452
1453 #if defined(OS_ANDROID)
1454   chrome_variations::VariationsService* variations_service =
1455       browser_process_->variations_service();
1456   if (variations_service) {
1457     variations_service->set_policy_pref_service(profile_->GetPrefs());
1458     variations_service->StartRepeatedVariationsSeedFetch();
1459   }
1460   TranslateDownloadManager::RequestLanguageList(profile_->GetPrefs());
1461
1462 #else
1463   // Most general initialization is behind us, but opening a
1464   // tab and/or session restore and such is still to be done.
1465   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1466
1467   // We are in regular browser boot sequence. Open initial tabs and enter the
1468   // main message loop.
1469   int result_code;
1470 #if defined(OS_CHROMEOS)
1471   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1472   // them this early as the cryptohome hasn't yet been mounted (which happens
1473   // only once we log in.
1474   std::vector<Profile*> last_opened_profiles;
1475 #else
1476   std::vector<Profile*> last_opened_profiles =
1477       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1478 #endif
1479
1480   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1481                               profile_, last_opened_profiles, &result_code)) {
1482 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1483     // Initialize autoupdate timer. Timer callback costs basically nothing
1484     // when browser is not in persistent mode, so it's OK to let it ride on
1485     // the main thread. This needs to be done here because we don't want
1486     // to start the timer when Chrome is run inside a test harness.
1487     browser_process_->StartAutoupdateTimer();
1488 #endif
1489
1490 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1491     // On Linux, the running exe will be updated if an upgrade becomes
1492     // available while the browser is running.  We need to save the last
1493     // modified time of the exe, so we can compare to determine if there is
1494     // an upgrade while the browser is kept alive by a persistent extension.
1495     upgrade_util::SaveLastModifiedTimeOfExe();
1496 #endif
1497
1498     // Record now as the last successful chrome start.
1499     GoogleUpdateSettings::SetLastRunTime();
1500
1501 #if defined(OS_MACOSX)
1502     // Call Recycle() here as late as possible, before going into the loop
1503     // because Start() will add things to it while creating the main window.
1504     if (parameters().autorelease_pool)
1505       parameters().autorelease_pool->Recycle();
1506 #endif
1507
1508     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1509     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1510
1511     // If we're running tests (ui_task is non-null), then we don't want to
1512     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1513     // RequestLanguageList
1514     if (parameters().ui_task == NULL) {
1515       // Request new variations seed information from server.
1516       chrome_variations::VariationsService* variations_service =
1517           browser_process_->variations_service();
1518       if (variations_service) {
1519         variations_service->StartRepeatedVariationsSeedFetch();
1520
1521 #if defined(OS_WIN)
1522         variations_service->StartGoogleUpdateRegistrySync();
1523 #endif
1524       }
1525
1526       TranslateDownloadManager::RequestLanguageList(profile_->GetPrefs());
1527     }
1528
1529     run_message_loop_ = true;
1530   } else {
1531     run_message_loop_ = false;
1532   }
1533   browser_creator_.reset();
1534 #endif  // !defined(OS_ANDROID)
1535
1536   performance_monitor::PerformanceMonitor::GetInstance()->Initialize();
1537
1538   PostBrowserStart();
1539
1540   chrome_prefs::SchedulePrefHashStoresUpdateCheck(profile_->GetPath());
1541
1542   if (parameters().ui_task) {
1543     // We end the startup timer here if we have parameters to run, because we
1544     // never start to run the main loop (where we normally stop the timer).
1545     startup_timer_->SignalStartupComplete(
1546         performance_monitor::StartupTimer::STARTUP_TEST);
1547     parameters().ui_task->Run();
1548     delete parameters().ui_task;
1549     run_message_loop_ = false;
1550   }
1551 #if defined(OS_ANDROID)
1552   // We never run the C++ main loop on Android, since the UI thread message
1553   // loop is controlled by the OS, so this is as close as we can get to
1554   // the start of the main loop
1555   if (result_code_ <= 0) {
1556     RecordBrowserStartupTime();
1557   }
1558 #endif
1559   return result_code_;
1560 }
1561
1562 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1563   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1564 #if defined(OS_ANDROID)
1565   // Chrome on Android does not use default MessageLoop. It has its own
1566   // Android specific MessageLoop
1567   NOTREACHED();
1568   return true;
1569 #else
1570   // Set the result code set in PreMainMessageLoopRun or set above.
1571   *result_code = result_code_;
1572   if (!run_message_loop_)
1573     return true;  // Don't run the default message loop.
1574
1575   // These should be invoked as close to the start of the browser's
1576   // UI thread message loop as possible to get a stable measurement
1577   // across versions.
1578   RecordBrowserStartupTime();
1579   startup_timer_->SignalStartupComplete(
1580       performance_monitor::StartupTimer::STARTUP_NORMAL);
1581
1582   DCHECK(base::MessageLoopForUI::IsCurrent());
1583   base::RunLoop run_loop;
1584
1585   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1586
1587   MetricsService::SetExecutionPhase(MetricsService::MAIN_MESSAGE_LOOP_RUN);
1588   run_loop.Run();
1589
1590   return true;
1591 #endif
1592 }
1593
1594 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1595   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1596 #if defined(OS_ANDROID)
1597   // Chrome on Android does not use default MessageLoop. It has its own
1598   // Android specific MessageLoop
1599   NOTREACHED();
1600 #else
1601
1602   // Start watching for jank during shutdown. It gets disarmed when
1603   // |shutdown_watcher_| object is destructed.
1604   MetricsService::SetExecutionPhase(MetricsService::SHUTDOWN_TIMEBOMB_ARM);
1605   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1606
1607   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1608   startup_watcher_->Disarm();
1609
1610   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1611     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1612
1613   // Some tests don't set parameters.ui_task, so they started translate
1614   // language fetch that was never completed so we need to cleanup here
1615   // otherwise it will be done by the destructor in a wrong thread.
1616   TranslateService::Shutdown(parameters().ui_task == NULL);
1617
1618   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1619     process_singleton_->Cleanup();
1620
1621   // Stop all tasks that might run on WatchDogThread.
1622   ThreadWatcherList::StopWatchingAll();
1623
1624   browser_process_->metrics_service()->Stop();
1625
1626   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1627   browser_process_->StartTearDown();
1628 #endif
1629 }
1630
1631 void ChromeBrowserMainParts::PostDestroyThreads() {
1632 #if defined(OS_ANDROID)
1633   // On Android, there is no quit/exit. So the browser's main message loop will
1634   // not finish.
1635   NOTREACHED();
1636 #else
1637   browser_process_->PostDestroyThreads();
1638   // browser_shutdown takes care of deleting browser_process, so we need to
1639   // release it.
1640   ignore_result(browser_process_.release());
1641   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1642   master_prefs_.reset();
1643   process_singleton_.reset();
1644
1645   // We need to do this check as late as possible, but due to modularity, this
1646   // may be the last point in Chrome.  This would be more effective if done at
1647   // a higher level on the stack, so that it is impossible for an early return
1648   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1649   // paths from content/browser/browser_main.
1650   CHECK(MetricsService::UmaMetricsProperlyShutdown());
1651
1652 #if defined(OS_CHROMEOS)
1653   chromeos::CrosSettings::Shutdown();
1654 #endif
1655 #endif
1656 }
1657
1658 // Public members:
1659
1660 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1661   chrome_extra_parts_.push_back(parts);
1662 }