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/first_run/first_run.h"
  56 #include "chrome/browser/first_run/upgrade_util.h"
  57 #include "chrome/browser/google/google_search_counter.h"
  58 #include "chrome/browser/google/google_util.h"
  59 #include "chrome/browser/gpu/gl_string_manager.h"
  60 #include "chrome/browser/gpu/three_d_api_observer.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_service.h"
  65 #include "chrome/browser/metrics/thread_watcher.h"
  66 #include "chrome/browser/metrics/tracking_synchronizer.h"
  67 #include "chrome/browser/metrics/variations/variations_http_header_provider.h"
  68 #include "chrome/browser/metrics/variations/variations_service.h"
  69 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  70 #include "chrome/browser/net/chrome_net_log.h"
  71 #include "chrome/browser/net/crl_set_fetcher.h"
  72 #include "chrome/browser/notifications/desktop_notification_service.h"
  73 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  74 #include "chrome/browser/performance_monitor/performance_monitor.h"
  75 #include "chrome/browser/performance_monitor/startup_timer.h"
  76 #include "chrome/browser/plugins/plugin_prefs.h"
  77 #include "chrome/browser/pref_service_flags_storage.h"
  78 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  79 #include "chrome/browser/prefs/command_line_pref_store.h"
  80 #include "chrome/browser/prefs/pref_metrics_service.h"
  81 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  82 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  83 #include "chrome/browser/process_singleton.h"
  84 #include "chrome/browser/profiles/profile.h"
  85 #include "chrome/browser/profiles/profile_manager.h"
  86 #include "chrome/browser/profiles/profiles_state.h"
  87 #include "chrome/browser/shell_integration.h"
  88 #include "chrome/browser/translate/translate_service.h"
  89 #include "chrome/browser/ui/app_list/app_list_service.h"
  90 #include "chrome/browser/ui/browser.h"
  91 #include "chrome/browser/ui/browser_finder.h"
  92 #include "chrome/browser/ui/host_desktop.h"
  93 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  94 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  95 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  96 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  97 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  98 #include "chrome/common/chrome_constants.h"
  99 #include "chrome/common/chrome_paths.h"
 100 #include "chrome/common/chrome_result_codes.h"
 101 #include "chrome/common/chrome_switches.h"
 102 #include "chrome/common/crash_keys.h"
 103 #include "chrome/common/env_vars.h"
 104 #include "chrome/common/logging_chrome.h"
 105 #include "chrome/common/net/net_resource_provider.h"
 106 #include "chrome/common/pref_names.h"
 107 #include "chrome/common/profiling.h"
 108 #include "chrome/installer/util/google_update_settings.h"
 109 #include "components/language_usage_metrics/language_usage_metrics.h"
 110 #include "components/nacl/browser/nacl_browser.h"
 111 #include "components/nacl/browser/nacl_process_host.h"
 112 #include "components/rappor/rappor_service.h"
 113 #include "components/signin/core/common/profile_management_switches.h"
 114 #include "components/startup_metric_utils/startup_metric_utils.h"
 115 #include "components/translate/core/browser/translate_download_manager.h"
 116 #include "content/public/browser/browser_thread.h"
 117 #include "content/public/browser/notification_observer.h"
 118 #include "content/public/browser/notification_registrar.h"
 119 #include "content/public/browser/notification_service.h"
 120 #include "content/public/browser/notification_types.h"
 121 #include "content/public/browser/site_instance.h"
 122 #include "content/public/common/content_client.h"
 123 #include "content/public/common/content_switches.h"
 124 #include "content/public/common/main_function_params.h"
 125 #include "extensions/browser/extension_protocols.h"
 126 #include "grit/app_locale_settings.h"
 127 #include "grit/browser_resources.h"
 128 #include "grit/chromium_strings.h"
 129 #include "grit/generated_resources.h"
 130 #include "grit/platform_locale_settings.h"
 131 #include "net/base/net_module.h"
 132 #include "net/base/sdch_manager.h"
 133 #include "net/cookies/cookie_monster.h"
 134 #include "net/http/http_network_layer.h"
 135 #include "net/http/http_stream_factory.h"
 136 #include "net/url_request/url_request.h"
 137 #include "ui/base/l10n/l10n_util.h"
 138 #include "ui/base/layout.h"
 139 #include "ui/base/resource/resource_bundle.h"
 140
 141 #if defined(OS_ANDROID)
 142 #include "chrome/browser/metrics/thread_watcher_android.h"
 143 #else
 144 #include "chrome/browser/feedback/feedback_profile_observer.h"
 145 #endif
 146
 147 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 148 #include "chrome/browser/first_run/upgrade_util_linux.h"
 149 #include "chrome/browser/sxs_linux.h"
 150 #endif
 151
 152 #if defined(OS_CHROMEOS)
 153 #include "chrome/browser/chromeos/settings/cros_settings.h"
 154 #include "chromeos/chromeos_switches.h"
 155 #include "chromeos/settings/cros_settings_names.h"
 156 #endif
 157
 158 // TODO(port): several win-only methods have been pulled out of this, but
 159 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 160 // other platforms. For now, it's just a stub. This is a serious work in
 161 // progress and should not be taken as an indication of a real refactoring.
 162
 163 #if defined(OS_WIN)
 164 #include "base/environment.h"  // For PreRead experiment.
 165 #include "base/win/windows_version.h"
 166 #include "chrome/browser/browser_util_win.h"
 167 #include "chrome/browser/chrome_browser_main_win.h"
 168 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 169 #include "chrome/browser/first_run/upgrade_util_win.h"
 170 #include "chrome/browser/ui/network_profile_bubble.h"
 171 #include "chrome/common/net/url_fixer_upper.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 #endif  // defined(OS_WIN)
 179
 180 #if defined(OS_MACOSX)
 181 #include <Security/Security.h>
 182
 183 #include "base/mac/scoped_nsautorelease_pool.h"
 184 #include "chrome/browser/mac/keystone_glue.h"
 185 #endif
 186
 187 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
 188 #include "printing/printed_document.h"
 189 #endif
 190
 191 #if defined(ENABLE_RLZ)
 192 #include "chrome/browser/rlz/rlz.h"
 193 #endif
 194
 195 #if defined(ENABLE_WEBRTC)
 196 #include "chrome/browser/media/webrtc_log_util.h"
 197 #endif
 198
 199 #if defined(USE_AURA)
 200 #include "ui/aura/env.h"
 201 #endif
 202
 203 using content::BrowserThread;
 204
 205 namespace {
 206
 207 // This function provides some ways to test crash and assertion handling
 208 // behavior of the program.
 209 void HandleTestParameters(const CommandLine& command_line) {
 210   // This parameter causes an assertion.
 211   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
 212     DCHECK(false);
 213   }
 214
 215   // This parameter causes a null pointer crash (crash reporter trigger).
 216   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 217     int* bad_pointer = NULL;
 218     *bad_pointer = 0;
 219   }
 220 }
 221
 222 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 223 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 224                         const std::vector<GURL>& new_tabs) {
 225   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 226        it != new_tabs.end(); ++it) {
 227     if (it->is_valid())
 228       browser_creator->AddFirstRunTab(*it);
 229   }
 230 }
 231 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 232
 233 // Returns the new local state object, guaranteed non-NULL.
 234 // |local_state_task_runner| must be a shutdown-blocking task runner.
 235 PrefService* InitializeLocalState(
 236     base::SequencedTaskRunner* local_state_task_runner,
 237     const CommandLine& parsed_command_line) {
 238   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 239   base::FilePath local_state_path;
 240   PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 241   bool local_state_file_exists = base::PathExists(local_state_path);
 242
 243   // Load local state.  This includes the application locale so we know which
 244   // locale dll to load.  This also causes local state prefs to be registered.
 245   PrefService* local_state = g_browser_process->local_state();
 246   DCHECK(local_state);
 247
 248 #if defined(OS_WIN)
 249   if (first_run::IsChromeFirstRun()) {
 250     // During first run we read the google_update registry key to find what
 251     // language the user selected when downloading the installer. This
 252     // becomes our default language in the prefs.
 253     // Other platforms obey the system locale.
 254     base::string16 install_lang;
 255     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 256       local_state->SetString(prefs::kApplicationLocale,
 257                              base::UTF16ToASCII(install_lang));
 258     }
 259   }
 260 #endif  // defined(OS_WIN)
 261
 262   // If the local state file for the current profile doesn't exist and the
 263   // parent profile command line flag is present, then we should inherit some
 264   // local state from the parent profile.
 265   // Checking that the local state file for the current profile doesn't exist
 266   // is the most robust way to determine whether we need to inherit or not
 267   // since the parent profile command line flag can be present even when the
 268   // current profile is not a new one, and in that case we do not want to
 269   // inherit and reset the user's setting.
 270   //
 271   // TODO(mnissler): We should probably just instantiate a
 272   // JSONPrefStore here instead of an entire PrefService. Once this is
 273   // addressed, the call to browser_prefs::RegisterLocalState can move
 274   // to chrome_prefs::CreateLocalState.
 275   if (!local_state_file_exists &&
 276       parsed_command_line.HasSwitch(switches::kParentProfile)) {
 277     base::FilePath parent_profile =
 278         parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 279     scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 280     scoped_ptr<PrefService> parent_local_state(
 281         chrome_prefs::CreateLocalState(
 282             parent_profile,
 283             local_state_task_runner,
 284             g_browser_process->policy_service(),
 285             registry,
 286             false));
 287     registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 288     // Right now, we only inherit the locale setting from the parent profile.
 289     local_state->SetString(
 290         prefs::kApplicationLocale,
 291         parent_local_state->GetString(prefs::kApplicationLocale));
 292   }
 293
 294 #if defined(OS_CHROMEOS)
 295   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 296     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 297     // Ensure that we start with owner's locale.
 298     if (!owner_locale.empty() &&
 299         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 300         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 301       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 302     }
 303   }
 304 #endif
 305
 306   return local_state;
 307 }
 308
 309 // Initializes the primary profile, possibly doing some user prompting to pick
 310 // a fallback profile. Returns the newly created profile, or NULL if startup
 311 // should not continue.
 312 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 313                               const base::FilePath& user_data_dir,
 314                               const CommandLine& parsed_command_line) {
 315   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 316   base::Time start = base::Time::Now();
 317   if (profiles::IsMultipleProfilesEnabled() &&
 318       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 319     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
 320         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 321     // Clear kProfilesLastActive since the user only wants to launch a specific
 322     // profile.
 323     ListPrefUpdate update(g_browser_process->local_state(),
 324                           prefs::kProfilesLastActive);
 325     base::ListValue* profile_list = update.Get();
 326     profile_list->Clear();
 327   }
 328
 329   Profile* profile = NULL;
 330 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 331   // On ChromeOS and Android the ProfileManager will use the same path as the
 332   // one we got passed. GetActiveUserProfile will therefore use the correct path
 333   // automatically.
 334   DCHECK_EQ(user_data_dir.value(),
 335             g_browser_process->profile_manager()->user_data_dir().value());
 336   profile = ProfileManager::GetActiveUserProfile();
 337 #else
 338   base::FilePath profile_path =
 339       GetStartupProfilePath(user_data_dir, parsed_command_line);
 340   profile = g_browser_process->profile_manager()->GetProfile(
 341       profile_path);
 342
 343   // If we're using the --new-profile-management flag and this profile is
 344   // signed out, then we should show the user manager instead. By switching
 345   // the active profile to the guest profile we ensure that no
 346   // browser windows will be opened for the guest profile.
 347   if (switches::IsNewProfileManagement() && !profile->IsGuestSession()) {
 348     ProfileInfoCache& cache =
 349         g_browser_process->profile_manager()->GetProfileInfoCache();
 350     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 351
 352     if (cache.ProfileIsSigninRequiredAtIndex(profile_index))
 353       profile = g_browser_process->profile_manager()->GetProfile(
 354           ProfileManager::GetGuestProfilePath());
 355   }
 356 #endif
 357   if (profile) {
 358     UMA_HISTOGRAM_LONG_TIMES(
 359         "Startup.CreateFirstProfile", base::Time::Now() - start);
 360     return profile;
 361   }
 362
 363 #if !defined(OS_WIN)
 364   // TODO(port): fix this.  See comments near the definition of
 365   // user_data_dir.  It is better to CHECK-fail here than it is to
 366   // silently exit because of missing code in the above test.
 367   CHECK(profile) << "Cannot get default profile.";
 368 #endif
 369
 370   return NULL;
 371 }
 372
 373 #if defined(OS_MACOSX)
 374 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 375                           SecKeychainCallbackInfo* info, void* context) {
 376   return noErr;
 377 }
 378 #endif
 379
 380 void RegisterComponentsForUpdate(const CommandLine& command_line) {
 381   component_updater::ComponentUpdateService* cus =
 382       g_browser_process->component_updater();
 383
 384   // Registration can be before or after cus->Start() so it is ok to post
 385   // a task to the UI thread to do registration once you done the necessary
 386   // file IO to know you existing component version.
 387 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 388   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 389   RegisterPepperFlashComponent(cus);
 390   RegisterSwiftShaderComponent(cus);
 391 #endif
 392
 393 #if !defined(OS_ANDROID)
 394   g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(
 395       cus, command_line);
 396 #endif
 397
 398 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 399   RegisterWidevineCdmComponent(cus);
 400 #endif
 401
 402 #if !defined(OS_CHROMEOS)
 403   // CRLSetFetcher attempts to load a CRL set from either the local disk or
 404   // network.
 405   if (!command_line.HasSwitch(switches::kDisableCRLSets))
 406     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus);
 407 #endif
 408
 409 #if defined(CLD2_DYNAMIC_MODE) && defined(CLD2_IS_COMPONENT)
 410   RegisterCldComponent(cus);
 411 #endif
 412
 413   cus->Start();
 414 }
 415
 416 #if !defined(OS_ANDROID)
 417 bool ProcessSingletonNotificationCallback(
 418     const CommandLine& command_line,
 419     const base::FilePath& current_directory) {
 420   // Drop the request if the browser process is already in shutdown path.
 421   if (!g_browser_process || g_browser_process->IsShuttingDown())
 422     return false;
 423
 424   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 425     std::string start_time_string =
 426         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 427     int64 remote_start_time;
 428     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 429       base::TimeDelta elapsed =
 430           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 431       if (command_line.HasSwitch(switches::kFastStart)) {
 432         UMA_HISTOGRAM_LONG_TIMES(
 433             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 434       } else {
 435         UMA_HISTOGRAM_LONG_TIMES(
 436             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 437       }
 438     }
 439   }
 440
 441   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 442       command_line);
 443
 444   base::FilePath user_data_dir =
 445       g_browser_process->profile_manager()->user_data_dir();
 446   base::FilePath startup_profile_dir =
 447       GetStartupProfilePath(user_data_dir, command_line);
 448
 449   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 450       command_line, current_directory, startup_profile_dir);
 451   return true;
 452 }
 453 #endif  // !defined(OS_ANDROID)
 454
 455 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
 456   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 457     std::string port_str =
 458         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 459     int port;
 460     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 461       g_browser_process->CreateDevToolsHttpProtocolHandler(
 462           chrome::HOST_DESKTOP_TYPE_NATIVE,
 463           "127.0.0.1",
 464           port);
 465     } else {
 466       DLOG(WARNING) << "Invalid http debugger port number " << port;
 467     }
 468   }
 469 }
 470
 471 // Heap allocated class that listens for first page load, kicks off stat
 472 // recording and then deletes itself.
 473 class LoadCompleteListener : public content::NotificationObserver {
 474  public:
 475   LoadCompleteListener() {
 476     registrar_.Add(this,
 477                    content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
 478                    content::NotificationService::AllSources());
 479   }
 480   virtual ~LoadCompleteListener() {}
 481
 482   // content::NotificationObserver implementation.
 483   virtual void Observe(int type,
 484                        const content::NotificationSource& source,
 485                        const content::NotificationDetails& details) OVERRIDE {
 486     DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type);
 487     startup_metric_utils::OnInitialPageLoadComplete();
 488     delete this;
 489   }
 490
 491  private:
 492   content::NotificationRegistrar registrar_;
 493   DISALLOW_COPY_AND_ASSIGN(LoadCompleteListener);
 494 };
 495
 496 }  // namespace
 497
 498 namespace chrome_browser {
 499
 500 // This error message is not localized because we failed to load the
 501 // localization data files.
 502 #if defined(OS_WIN)
 503 const char kMissingLocaleDataTitle[] = "Missing File Error";
 504 #endif
 505
 506 #if defined(OS_WIN)
 507 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 508 const char kMissingLocaleDataMessage[] =
 509     "Unable to find locale data files. Please reinstall.";
 510 #endif
 511
 512 }  // namespace chrome_browser
 513
 514 // BrowserMainParts ------------------------------------------------------------
 515
 516 // static
 517 bool ChromeBrowserMainParts::disable_enforcing_cookie_policies_for_tests_ =
 518     false;
 519
 520 ChromeBrowserMainParts::ChromeBrowserMainParts(
 521     const content::MainFunctionParams& parameters)
 522     : parameters_(parameters),
 523       parsed_command_line_(parameters.command_line),
 524       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 525       startup_watcher_(new StartupTimeBomb()),
 526       shutdown_watcher_(new ShutdownWatcherHelper()),
 527       startup_timer_(new performance_monitor::StartupTimer()),
 528       browser_field_trials_(parameters.command_line),
 529       profile_(NULL),
 530       run_message_loop_(true),
 531       notify_result_(ProcessSingleton::PROCESS_NONE),
 532       local_state_(NULL),
 533       restart_last_session_(false) {
 534   // If we're running tests (ui_task is non-null).
 535   if (parameters.ui_task)
 536     browser_defaults::enable_help_app = false;
 537
 538   // Chrome disallows cookies by default. All code paths that want to use
 539   // cookies need to go through one of Chrome's URLRequestContexts which have
 540   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 541   if (!disable_enforcing_cookie_policies_for_tests_)
 542     net::URLRequest::SetDefaultCookiePolicyToBlock();
 543 }
 544
 545 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 546   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 547     delete chrome_extra_parts_[i];
 548   chrome_extra_parts_.clear();
 549 }
 550
 551 // This will be called after the command-line has been mutated by about:flags
 552 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 553   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 554   // Must initialize metrics after labs have been converted into switches,
 555   // but before field trials are set up (so that client ID is available for
 556   // one-time randomized field trials).
 557
 558   // Initialize FieldTrialList to support FieldTrials that use one-time
 559   // randomization.
 560   MetricsService* metrics = browser_process_->metrics_service();
 561   field_trial_list_.reset(
 562       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 563
 564   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 565   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 566     base::FieldTrial::EnableBenchmarking();
 567
 568   // Ensure any field trials specified on the command line are initialized.
 569   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 570     std::set<std::string> unforceable_field_trials;
 571 #if defined(OFFICIAL_BUILD)
 572     unforceable_field_trials.insert("SettingsEnforcement");
 573 #endif  // defined(OFFICIAL_BUILD)
 574
 575     // Create field trials without activating them, so that this behaves in a
 576     // consistent manner with field trials created from the server.
 577     bool result = base::FieldTrialList::CreateTrialsFromString(
 578         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 579         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 580         unforceable_field_trials);
 581     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 582                   << " list specified.";
 583   }
 584   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 585     // Create default variation ids which will always be included in the
 586     // X-Client-Data request header.
 587     chrome_variations::VariationsHttpHeaderProvider* provider =
 588         chrome_variations::VariationsHttpHeaderProvider::GetInstance();
 589     bool result = provider->SetDefaultVariationIds(
 590         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 591     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 592                   << " list specified.";
 593   }
 594   chrome_variations::VariationsService* variations_service =
 595       browser_process_->variations_service();
 596   if (variations_service)
 597     variations_service->CreateTrialsFromSeed();
 598
 599   // This must be called after the local state is initialized.
 600   browser_field_trials_.SetupFieldTrials(local_state_);
 601
 602   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 603   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 604   // Even though base::Bind does AddRef and Release, the object will not be
 605   // deleted after the Task is executed.
 606   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 607
 608   // Now that field trials have been created, initializes metrics recording.
 609   metrics->InitializeMetricsRecordingState();
 610 }
 611
 612 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 613
 614 void ChromeBrowserMainParts::StartMetricsRecording() {
 615   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 616   MetricsService* metrics = g_browser_process->metrics_service();
 617
 618   const bool only_do_metrics_recording =
 619       parsed_command_line_.HasSwitch(switches::kMetricsRecordingOnly) ||
 620       parsed_command_line_.HasSwitch(switches::kEnableBenchmarking);
 621   if (only_do_metrics_recording) {
 622     // If we're testing then we don't care what the user preference is, we turn
 623     // on recording, but not reporting, otherwise tests fail.
 624     metrics->StartRecordingForTests();
 625     return;
 626   }
 627
 628   metrics->CheckForClonedInstall(
 629       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 630   const bool metrics_enabled = metrics->StartIfMetricsReportingEnabled();
 631   if (metrics_enabled) {
 632     // TODO(asvitkine): Since this function is not run on Android, RAPPOR is
 633     // currently disabled there. http://crbug.com/370041
 634     browser_process_->rappor_service()->Start(
 635         browser_process_->local_state(),
 636         browser_process_->system_request_context());
 637   }
 638 }
 639
 640 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 641   // Don't record any metrics if UI was displayed before this point e.g.
 642   // warning dialogs.
 643   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 644     return;
 645
 646 #if defined(OS_ANDROID)
 647   // On Android the first run is handled in Java code, and the C++ side of
 648   // Chrome doesn't know if this is the first run. This will cause some
 649   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 650   // rare).
 651   bool is_first_run = false;
 652 #else
 653   bool is_first_run = first_run::IsChromeFirstRun();
 654 #endif
 655
 656 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 657 // platforms.
 658 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 659   const base::Time process_creation_time =
 660       base::CurrentProcessInfo::CreationTime();
 661
 662   if (!is_first_run && !process_creation_time.is_null()) {
 663     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 664     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 665   }
 666 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 667
 668   // Record collected startup metrics.
 669   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 670
 671   // Deletes self.
 672   new LoadCompleteListener();
 673 }
 674
 675 // -----------------------------------------------------------------------------
 676 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 677
 678 #if defined(OS_WIN)
 679 #define DLLEXPORT __declspec(dllexport)
 680
 681 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 682 extern "C" {
 683 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 684 }
 685
 686 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 687   // Need an instance of AtExitManager to handle singleton creations and
 688   // deletions.  We need this new instance because, the old instance created
 689   // in ChromeMain() got destructed when the function returned.
 690   base::AtExitManager exit_manager;
 691   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 692 }
 693 #endif
 694
 695 // content::BrowserMainParts implementation ------------------------------------
 696
 697 void ChromeBrowserMainParts::PreEarlyInitialization() {
 698   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 699   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 700     chrome_extra_parts_[i]->PreEarlyInitialization();
 701 }
 702
 703 void ChromeBrowserMainParts::PostEarlyInitialization() {
 704   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 705   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 706     chrome_extra_parts_[i]->PostEarlyInitialization();
 707 }
 708
 709 void ChromeBrowserMainParts::ToolkitInitialized() {
 710   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 711   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 712     chrome_extra_parts_[i]->ToolkitInitialized();
 713 }
 714
 715 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 716   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 717   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 718     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 719 }
 720
 721 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 722   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 723   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 724     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 725 }
 726
 727 int ChromeBrowserMainParts::PreCreateThreads() {
 728   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 729   result_code_ = PreCreateThreadsImpl();
 730
 731   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 732 #if !defined(OS_ANDROID)
 733     // These members must be initialized before exiting this function normally.
 734     DCHECK(master_prefs_.get());
 735     DCHECK(browser_creator_.get());
 736 #endif
 737     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 738       chrome_extra_parts_[i]->PreCreateThreads();
 739   }
 740
 741   return result_code_;
 742 }
 743
 744 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 745   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 746   run_message_loop_ = false;
 747 #if !defined(OS_ANDROID)
 748   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 749 #endif
 750   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 751     return chrome::RESULT_CODE_MISSING_DATA;
 752
 753   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 754   MediaCaptureDevicesDispatcher::GetInstance();
 755
 756   // Android's first run is done in Java instead of native.
 757 #if !defined(OS_ANDROID)
 758   process_singleton_.reset(new ChromeProcessSingleton(
 759       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 760
 761   // Cache first run state early.
 762   first_run::IsChromeFirstRun();
 763 #endif
 764
 765   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 766       JsonPrefStore::GetTaskRunnerForFile(
 767           base::FilePath(chrome::kLocalStorePoolName),
 768           BrowserThread::GetBlockingPool());
 769
 770   {
 771     TRACE_EVENT0("startup",
 772       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 773     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 774                                                   parsed_command_line()));
 775   }
 776
 777   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 778     TRACE_EVENT0("startup",
 779         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 780     // User wants to override default tracking status.
 781     std::string flag =
 782       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 783     // Default to basic profiling (no parent child support).
 784     tracked_objects::ThreadData::Status status =
 785           tracked_objects::ThreadData::PROFILING_ACTIVE;
 786     if (flag.compare("0") != 0)
 787       status = tracked_objects::ThreadData::DEACTIVATED;
 788     else if (flag.compare("child") != 0)
 789       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 790     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 791   }
 792
 793   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 794     tracking_objects_.set_output_file_path(
 795         parsed_command_line().GetSwitchValuePath(
 796             switches::kProfilingOutputFile));
 797   }
 798
 799   local_state_ = InitializeLocalState(
 800       local_state_task_runner.get(), parsed_command_line());
 801
 802 #if !defined(OS_ANDROID)
 803   // These members must be initialized before returning from this function.
 804   master_prefs_.reset(new first_run::MasterPrefs);
 805   // Android doesn't use StartupBrowserCreator.
 806   browser_creator_.reset(new StartupBrowserCreator);
 807   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 808   chrome::UMABrowsingActivityObserver::Init();
 809 #endif
 810
 811 #if !defined(OS_CHROMEOS)
 812   // Convert active labs into switches. This needs to be done before
 813   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 814   // affected by experiment flags (--touch-optimized-ui in particular).
 815   // On ChromeOS system level flags are applied from the device settings from
 816   // the session manager.
 817   {
 818     TRACE_EVENT0("startup",
 819         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 820     about_flags::PrefServiceFlagsStorage flags_storage_(
 821         g_browser_process->local_state());
 822     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 823                                         CommandLine::ForCurrentProcess(),
 824                                         about_flags::kAddSentinels);
 825   }
 826 #endif
 827
 828   local_state_->UpdateCommandLinePrefStore(
 829       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 830
 831   // Reset the command line in the crash report details, since we may have
 832   // just changed it to include experiments.
 833   crash_keys::SetSwitchesFromCommandLine(CommandLine::ForCurrentProcess());
 834
 835   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 836   // needed when loading the MainMenu.nib and the language doesn't depend on
 837   // anything since it comes from Cocoa.
 838 #if defined(OS_MACOSX)
 839   std::string locale =
 840       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 841   browser_process_->SetApplicationLocale(locale);
 842 #else
 843   const std::string locale =
 844       local_state_->GetString(prefs::kApplicationLocale);
 845
 846   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 847   // method InitSharedInstance is ignored.
 848
 849   TRACE_EVENT_BEGIN0("startup",
 850       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 851   const std::string loaded_locale =
 852       ResourceBundle::InitSharedInstanceWithLocale(locale, NULL);
 853   TRACE_EVENT_END0("startup",
 854       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 855
 856   if (loaded_locale.empty() &&
 857       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 858     ShowMissingLocaleMessageBox();
 859     return chrome::RESULT_CODE_MISSING_DATA;
 860   }
 861   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 862   browser_process_->SetApplicationLocale(loaded_locale);
 863
 864   base::FilePath resources_pack_path;
 865   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 866   {
 867     TRACE_EVENT0("startup",
 868         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 869     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 870         resources_pack_path, ui::SCALE_FACTOR_NONE);
 871   }
 872 #endif  // defined(OS_MACOSX)
 873
 874   // Android does first run in Java instead of native.
 875   // Chrome OS has its own out-of-box-experience code.
 876 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 877   // On first run, we need to process the predictor preferences before the
 878   // browser's profile_manager object is created, but after ResourceBundle
 879   // is initialized.
 880   if (first_run::IsChromeFirstRun()) {
 881     first_run::ProcessMasterPreferencesResult pmp_result =
 882         first_run::ProcessMasterPreferences(user_data_dir_,
 883                                             master_prefs_.get());
 884     if (pmp_result == first_run::EULA_EXIT_NOW)
 885       return chrome::RESULT_CODE_EULA_REFUSED;
 886
 887     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 888         !parsed_command_line().HasSwitch(switches::kAppId) &&
 889         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 890       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 891     }
 892
 893     // TODO(macourteau): refactor preferences that are copied from
 894     // master_preferences into local_state, as a "local_state" section in
 895     // master preferences. If possible, a generic solution would be prefered
 896     // over a copy one-by-one of specific preferences. Also see related TODO
 897     // in first_run.h.
 898
 899     // Store the initial VariationsService seed in local state, if it exists
 900     // in master prefs.
 901     if (!master_prefs_->variations_seed.empty()) {
 902       local_state_->SetString(prefs::kVariationsSeed,
 903                               master_prefs_->variations_seed);
 904       if (!master_prefs_->variations_seed_signature.empty()) {
 905         local_state_->SetString(prefs::kVariationsSeedSignature,
 906                                 master_prefs_->variations_seed_signature);
 907       }
 908       // Set the variation seed date to the current system time. If the user's
 909       // clock is incorrect, this may cause some field trial expiry checks to
 910       // not do the right thing until the next seed update from the server,
 911       // when this value will be updated.
 912       local_state_->SetInt64(prefs::kVariationsSeedDate,
 913                              base::Time::Now().ToInternalValue());
 914     }
 915
 916     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 917       local_state_->SetString(
 918           prefs::kBrowserSuppressDefaultBrowserPrompt,
 919           master_prefs_->suppress_default_browser_prompt_for_version);
 920     }
 921
 922     AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->HandleFirstRun();
 923   }
 924 #endif
 925
 926 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 927   // Set the product channel for crash reports.
 928   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 929       chrome::VersionInfo::GetVersionStringModifier());
 930 #endif
 931
 932   // Initialize tracking synchronizer system.
 933   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 934
 935   // Now that all preferences have been registered, set the install date
 936   // for the uninstall metrics if this is our first run. This only actually
 937   // gets used if the user has metrics reporting enabled at uninstall time.
 938   int64 install_date = local_state_->GetInt64(prefs::kInstallDate);
 939   if (install_date == 0)
 940     local_state_->SetInt64(prefs::kInstallDate, base::Time::Now().ToTimeT());
 941
 942 #if defined(OS_MACOSX)
 943   // Get the Keychain API to register for distributed notifications on the main
 944   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 945   // which doesn't. This ensures those notifications will get delivered
 946   // properly. See issue 37766.
 947   // (Note that the callback mask here is empty. I don't want to register for
 948   // any callbacks, I just want to initialize the mechanism.)
 949   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 950 #endif
 951
 952 #if defined(OS_CHROMEOS)
 953   // Must be done after g_browser_process is constructed, before
 954   // SetupMetricsAndFieldTrials().
 955   chromeos::CrosSettings::Initialize();
 956 #endif
 957
 958   // Now the command line has been mutated based on about:flags, we can setup
 959   // metrics and initialize field trials. The field trials are needed by
 960   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
 961   SetupMetricsAndFieldTrials();
 962
 963   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
 964   browser_process_->PreCreateThreads();
 965
 966   return content::RESULT_CODE_NORMAL_EXIT;
 967 }
 968
 969 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
 970   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
 971   result_code_ = PreMainMessageLoopRunImpl();
 972
 973   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 974     chrome_extra_parts_[i]->PreMainMessageLoopRun();
 975 }
 976
 977 // PreMainMessageLoopRun calls these extra stages in the following order:
 978 //  PreMainMessageLoopRunImpl()
 979 //   ... initial setup, including browser_process_ setup.
 980 //   PreProfileInit()
 981 //   ... additional setup, including CreateProfile()
 982 //   PostProfileInit()
 983 //   ... additional setup
 984 //   PreBrowserStart()
 985 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
 986 //   PostBrowserStart()
 987
 988 void ChromeBrowserMainParts::PreProfileInit() {
 989   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
 990
 991   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 992     chrome_extra_parts_[i]->PreProfileInit();
 993
 994 #if !defined(OS_ANDROID)
 995   // Initialize the feedback uploader so it can setup notifications for profile
 996   // creation.
 997   feedback::FeedbackProfileObserver::Initialize();
 998
 999   ProfileManager* profile_manager = g_browser_process->profile_manager();
1000
1001   // First check if any ephemeral profiles are left behind because of browser
1002   // crash and schedule them for deletion and then proceed with getting the set
1003   // of profiles to open.
1004   ProfileInfoCache& profile_cache = profile_manager->GetProfileInfoCache();
1005   size_t profiles_count = profile_cache.GetNumberOfProfiles();
1006   std::vector<base::FilePath> profiles_to_delete;
1007   for (size_t i = 0; i < profiles_count; ++i) {
1008     if (profile_cache.ProfileIsEphemeralAtIndex(i))
1009       profiles_to_delete.push_back(profile_cache.GetPathOfProfileAtIndex(i));
1010   }
1011
1012   if (profiles_to_delete.size()) {
1013     for (size_t i = 0; i < profiles_to_delete.size(); ++i) {
1014       profile_manager->ScheduleProfileForDeletion(
1015           profiles_to_delete[i], ProfileManager::CreateCallback());
1016     }
1017     // Clean up stale profiles immediately after browser start.
1018     BrowserThread::PostTask(
1019         BrowserThread::FILE, FROM_HERE,
1020         base::Bind(&ProfileManager::CleanUpStaleProfiles, profiles_to_delete));
1021   }
1022 #endif  // OS_ANDROID
1023 }
1024
1025 void ChromeBrowserMainParts::PostProfileInit() {
1026   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1027   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1028   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1029     chrome_extra_parts_[i]->PostProfileInit();
1030 }
1031
1032 void ChromeBrowserMainParts::PreBrowserStart() {
1033   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1034   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1035     chrome_extra_parts_[i]->PreBrowserStart();
1036
1037   three_d_observer_.reset(new ThreeDAPIObserver());
1038 }
1039
1040 void ChromeBrowserMainParts::PostBrowserStart() {
1041   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1042   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1043     chrome_extra_parts_[i]->PostBrowserStart();
1044 #if !defined(OS_ANDROID)
1045   // Allow ProcessSingleton to process messages.
1046   process_singleton_->Unlock();
1047 #endif
1048 #if defined(ENABLE_WEBRTC)
1049   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1050   // to reduce the impact on startup time.
1051   BrowserThread::PostDelayedTask(
1052       BrowserThread::UI,
1053       FROM_HERE,
1054       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1055       base::TimeDelta::FromMinutes(1));
1056 #endif
1057 }
1058
1059 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1060   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1061   // Android updates the metrics service dynamically depending on whether the
1062   // application is in the foreground or not. Do not start here.
1063 #if !defined(OS_ANDROID)
1064   // Now that the file thread has been started, start recording.
1065   StartMetricsRecording();
1066 #endif
1067
1068   // Create watchdog thread after creating all other threads because it will
1069   // watch the other threads and they must be running.
1070   browser_process_->watchdog_thread();
1071
1072   // Do any initializating in the browser process that requires all threads
1073   // running.
1074   browser_process_->PreMainMessageLoopRun();
1075
1076   // Record last shutdown time into a histogram.
1077   browser_shutdown::ReadLastShutdownInfo();
1078
1079 #if defined(OS_WIN)
1080   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1081   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1082   // upgrade/uninstall happen separately.
1083   bool already_running = browser_util::IsBrowserAlreadyRunning();
1084
1085   // If the command line specifies 'uninstall' then we need to work here
1086   // unless we detect another chrome browser running.
1087   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1088     return DoUninstallTasks(already_running);
1089   }
1090
1091   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1092       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1093     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1094         parsed_command_line_);
1095   }
1096 #endif
1097
1098   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1099     return ShellIntegration::SetAsDefaultBrowser() ?
1100         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1101         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1102   }
1103
1104 #if defined(USE_AURA)
1105   // Make sure aura::Env has been initialized.
1106   CHECK(aura::Env::GetInstance());
1107 #endif
1108
1109   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1110 #if !defined(OS_ANDROID)
1111   // If the command line specifies --pack-extension, attempt the pack extension
1112   // startup action and exit.
1113   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1114     extensions::StartupHelper extension_startup_helper;
1115     if (extension_startup_helper.PackExtension(parsed_command_line()))
1116       return content::RESULT_CODE_NORMAL_EXIT;
1117     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1118   }
1119
1120   // If we're being launched just to check the connector policy, we are
1121   // short-lived and don't want to be passing that switch off.
1122   bool pass_command_line = !parsed_command_line().HasSwitch(
1123       switches::kCheckCloudPrintConnectorPolicy);
1124
1125   if (pass_command_line) {
1126     // When another process is running, use that process instead of starting a
1127     // new one. NotifyOtherProcess will currently give the other process up to
1128     // 20 seconds to respond. Note that this needs to be done before we attempt
1129     // to read the profile.
1130     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1131     switch (notify_result_) {
1132       case ProcessSingleton::PROCESS_NONE:
1133         // No process already running, fall through to starting a new one.
1134         break;
1135
1136       case ProcessSingleton::PROCESS_NOTIFIED:
1137 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1138         printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1139             l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1140 #endif
1141         // Having a differentiated return type for testing allows for tests to
1142         // verify proper handling of some switches. When not testing, stick to
1143         // the standard Unix convention of returning zero when things went as
1144         // expected.
1145         if (parsed_command_line().HasSwitch(switches::kTestType))
1146           return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1147         return content::RESULT_CODE_NORMAL_EXIT;
1148
1149       case ProcessSingleton::PROFILE_IN_USE:
1150         return chrome::RESULT_CODE_PROFILE_IN_USE;
1151
1152       case ProcessSingleton::LOCK_ERROR:
1153         LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1154                       "directory. This means that running multiple instances "
1155                       "would start multiple browser processes rather than "
1156                       "opening a new window in the existing process. Aborting "
1157                       "now to avoid profile corruption.";
1158         return chrome::RESULT_CODE_PROFILE_IN_USE;
1159
1160       default:
1161         NOTREACHED();
1162     }
1163   }
1164 #endif  // !defined(OS_ANDROID)
1165
1166   // Handle special early return paths (which couldn't be processed even earlier
1167   // as they require the process singleton to be held) first.
1168
1169   std::string try_chrome =
1170       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1171   if (!try_chrome.empty()) {
1172 #if defined(OS_WIN)
1173     // Setup.exe has determined that we need to run a retention experiment
1174     // and has lauched chrome to show the experiment UI. It is guaranteed that
1175     // no other Chrome is currently running as the process singleton was
1176     // sucessfully grabbed above.
1177     int try_chrome_int;
1178     base::StringToInt(try_chrome, &try_chrome_int);
1179     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1180         try_chrome_int,
1181         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1182                    base::Unretained(process_singleton_.get())));
1183     if (answer == TryChromeDialogView::NOT_NOW)
1184       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1185     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1186       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1187     // At this point the user is willing to try chrome again.
1188     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1189       // Only set in the unattended case, the interactive case is Windows 8.
1190       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1191           ShellIntegration::SET_DEFAULT_UNATTENDED)
1192         ShellIntegration::SetAsDefaultBrowser();
1193     }
1194 #else
1195     // We don't support retention experiments on Mac or Linux.
1196     return content::RESULT_CODE_NORMAL_EXIT;
1197 #endif  // defined(OS_WIN)
1198   }
1199
1200 #if defined(OS_WIN)
1201   // Do the tasks if chrome has been upgraded while it was last running.
1202   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1203     return content::RESULT_CODE_NORMAL_EXIT;
1204
1205   // Check if there is any machine level Chrome installed on the current
1206   // machine. If yes and the current Chrome process is user level, we do not
1207   // allow the user level Chrome to run. So we notify the user and uninstall
1208   // user level Chrome.
1209   // Note this check needs to happen here (after the process singleton was
1210   // obtained but before potentially creating the first run sentinel).
1211   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1212     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1213 #endif  // defined(OS_WIN)
1214
1215 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1216   if (sxs_linux::ShouldMigrateUserDataDir())
1217     return sxs_linux::MigrateUserDataDir();
1218 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1219
1220   // Desktop construction occurs here, (required before profile creation).
1221   PreProfileInit();
1222
1223   // Profile creation ----------------------------------------------------------
1224
1225   MetricsService::SetExecutionPhase(MetricsService::CREATE_PROFILE,
1226                                     g_browser_process->local_state());
1227   profile_ = CreatePrimaryProfile(parameters(),
1228                                   user_data_dir_,
1229                                   parsed_command_line());
1230   if (!profile_)
1231     return content::RESULT_CODE_NORMAL_EXIT;
1232
1233 #if !defined(OS_ANDROID)
1234   // The first run sentinel must be created after the process singleton was
1235   // grabbed and no early return paths were otherwise hit above.
1236   first_run::CreateSentinelIfNeeded();
1237 #endif  // !defined(OS_ANDROID)
1238
1239 #if defined(ENABLE_BACKGROUND)
1240   // Autoload any profiles which are running background apps.
1241   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1242   browser_process_->profile_manager()->AutoloadProfiles();
1243 #endif
1244   // Post-profile init ---------------------------------------------------------
1245
1246   TranslateService::Initialize();
1247
1248   // Needs to be done before PostProfileInit, since login manager on CrOS is
1249   // called inside PostProfileInit.
1250   content::WebUIControllerFactory::RegisterFactory(
1251       ChromeWebUIControllerFactory::GetInstance());
1252
1253   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1254   // So make sure to create it before that.
1255 #if !defined(DISABLE_NACL)
1256   NaClBrowserDelegateImpl* delegate =
1257       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1258   nacl::NaClBrowser::SetDelegate(delegate);
1259 #endif
1260
1261   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1262   // (requires supporting early exit).
1263   PostProfileInit();
1264
1265   // Retrieve cached GL strings from local state and use them for GPU
1266   // blacklist decisions.
1267   if (g_browser_process->gl_string_manager())
1268     g_browser_process->gl_string_manager()->Initialize();
1269
1270   // Create an instance of GpuModeManager to watch gpu mode pref change.
1271   g_browser_process->gpu_mode_manager();
1272
1273 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1274   // Show the First Run UI if this is the first time Chrome has been run on
1275   // this computer, or we're being compelled to do so by a command line flag.
1276   // Note that this be done _after_ the PrefService is initialized and all
1277   // preferences are registered, since some of the code that the importer
1278   // touches reads preferences.
1279   if (first_run::IsChromeFirstRun()) {
1280     first_run::AutoImport(profile_,
1281                           master_prefs_->homepage_defined,
1282                           master_prefs_->do_import_items,
1283                           master_prefs_->dont_import_items,
1284                           master_prefs_->import_bookmarks_path);
1285
1286     // Note: this can pop the first run consent dialog on linux.
1287     first_run::DoPostImportTasks(profile_,
1288                                  master_prefs_->make_chrome_default_for_user);
1289
1290     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1291       browser_creator_->set_show_main_browser_window(
1292           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1293     } else {
1294       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1295     }
1296   }
1297 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1298
1299 #if defined(OS_WIN)
1300   // Sets things up so that if we crash from this point on, a dialog will
1301   // popup asking the user to restart chrome. It is done this late to avoid
1302   // testing against a bunch of special cases that are taken care early on.
1303   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1304       parsed_command_line());
1305
1306   // Registers Chrome with the Windows Restart Manager, which will restore the
1307   // Chrome session when the computer is restarted after a system update.
1308   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1309   // but should run on startup if extended to handle crashes/hangs/patches.
1310   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1311   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1312     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1313         parsed_command_line());
1314   }
1315
1316   // Verify that the profile is not on a network share and if so prepare to show
1317   // notification to the user.
1318   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1319     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1320         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1321                    profile_->GetPath()));
1322   }
1323 #endif  // OS_WIN
1324
1325 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1326   // Init the RLZ library. This just binds the dll and schedules a task on the
1327   // file thread to be run sometime later. If this is the first run we record
1328   // the installation event.
1329   PrefService* pref_service = profile_->GetPrefs();
1330   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1331       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1332   // Negative ping delay means to send ping immediately after a first search is
1333   // recorded.
1334   RLZTracker::InitRlzFromProfileDelayed(
1335       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1336       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1337 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1338
1339   // Configure modules that need access to resources.
1340   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1341
1342   // In unittest mode, this will do nothing.  In normal mode, this will create
1343   // the global IntranetRedirectDetector instance, which will promptly go to
1344   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1345   // to see if it should do anything else.
1346   //
1347   // A simpler way of doing all this would be to have some function which could
1348   // give the time elapsed since startup, and simply have this object check that
1349   // when asked to initialize itself, but this doesn't seem to exist.
1350   //
1351   // This can't be created in the BrowserProcessImpl constructor because it
1352   // needs to read prefs that get set after that runs.
1353   browser_process_->intranet_redirect_detector();
1354   GoogleSearchCounter::RegisterForNotifications();
1355
1356   if (parsed_command_line().HasSwitch(switches::kEnableSdchOverHttps)) {
1357     net::SdchManager::EnableSecureSchemeSupport(true);
1358   } else {
1359     // Check SDCH field trial.
1360     const char kSdchFieldTrialName[] = "SDCH";
1361     const char kEnabledAllGroupName[] = "EnabledAll";
1362     const char kEnabledHttpOnlyGroupName[] = "EnabledHttpOnly";
1363     const char kDisabledAllGroupName[] = "DisabledAll";
1364
1365     base::StringPiece sdch_trial_group =
1366         base::FieldTrialList::FindFullName(kSdchFieldTrialName);
1367     if (sdch_trial_group.starts_with(kEnabledAllGroupName)) {
1368       net::SdchManager::EnableSecureSchemeSupport(true);
1369       net::SdchManager::EnableSdchSupport(true);
1370     } else if (sdch_trial_group.starts_with(kEnabledHttpOnlyGroupName)) {
1371       net::SdchManager::EnableSdchSupport(true);
1372     } else if (sdch_trial_group.starts_with(kDisabledAllGroupName)) {
1373       net::SdchManager::EnableSdchSupport(false);
1374     }
1375   }
1376
1377   if (parsed_command_line().HasSwitch(switches::kEnableWatchdog))
1378     InstallJankometer(parsed_command_line());
1379
1380 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
1381   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1382     base::FilePath path =
1383         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1384     printing::PrintedDocument::set_debug_dump_path(path);
1385   }
1386 #endif
1387
1388   HandleTestParameters(parsed_command_line());
1389   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1390       base::debug::BeingDebugged());
1391
1392   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1393       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1394   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1395       browser_process_->GetApplicationLocale());
1396
1397   // Start watching for hangs during startup. We disarm this hang detector when
1398   // ThreadWatcher takes over or when browser is shutdown or when
1399   // startup_watcher_ is deleted.
1400   MetricsService::SetExecutionPhase(MetricsService::STARTUP_TIMEBOMB_ARM,
1401                                     g_browser_process->local_state());
1402   startup_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1403
1404   // On mobile, need for clean shutdown arises only when the application comes
1405   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1406   // http://crbug.com/179143
1407 #if !defined(OS_ANDROID)
1408   // Start watching for a hang.
1409   MetricsService::LogNeedForCleanShutdown(g_browser_process->local_state());
1410 #endif
1411
1412 #if defined(ENABLE_FULL_PRINTING)
1413   // Create the instance of the cloud print proxy service so that it can launch
1414   // the service process if needed. This is needed because the service process
1415   // might have shutdown because an update was available.
1416   // TODO(torne): this should maybe be done with
1417   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1418   // instead?
1419   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1420 #endif
1421
1422   // Start watching all browser threads for responsiveness.
1423   MetricsService::SetExecutionPhase(MetricsService::THREAD_WATCHER_START,
1424                                     g_browser_process->local_state());
1425   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1426
1427 #if defined(OS_ANDROID)
1428   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1429 #endif
1430
1431 #if !defined(DISABLE_NACL)
1432   BrowserThread::PostTask(
1433       BrowserThread::IO,
1434       FROM_HERE,
1435       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1436 #endif
1437
1438   // Make sure initial prefs are recorded
1439   PrefMetricsService::Factory::GetForProfile(profile_);
1440
1441   PreBrowserStart();
1442
1443   // Instantiate the notification UI manager, as this triggers a perf timer
1444   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1445   // triggering the timer and call that explicitly in the approprate place.
1446   // http://crbug.com/105065.
1447   browser_process_->notification_ui_manager();
1448
1449   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1450     RegisterComponentsForUpdate(parsed_command_line());
1451
1452 #if defined(OS_ANDROID)
1453   chrome_variations::VariationsService* variations_service =
1454       browser_process_->variations_service();
1455   if (variations_service) {
1456     variations_service->set_policy_pref_service(profile_->GetPrefs());
1457     variations_service->StartRepeatedVariationsSeedFetch();
1458   }
1459   TranslateDownloadManager::RequestLanguageList(profile_->GetPrefs());
1460
1461 #else
1462   // Most general initialization is behind us, but opening a
1463   // tab and/or session restore and such is still to be done.
1464   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1465
1466   // We are in regular browser boot sequence. Open initial tabs and enter the
1467   // main message loop.
1468   int result_code;
1469 #if defined(OS_CHROMEOS)
1470   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1471   // them this early as the cryptohome hasn't yet been mounted (which happens
1472   // only once we log in.
1473   std::vector<Profile*> last_opened_profiles;
1474 #else
1475   std::vector<Profile*> last_opened_profiles =
1476       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1477 #endif
1478
1479   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1480                               profile_, last_opened_profiles, &result_code)) {
1481 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1482     // Initialize autoupdate timer. Timer callback costs basically nothing
1483     // when browser is not in persistent mode, so it's OK to let it ride on
1484     // the main thread. This needs to be done here because we don't want
1485     // to start the timer when Chrome is run inside a test harness.
1486     browser_process_->StartAutoupdateTimer();
1487 #endif
1488
1489 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1490     // On Linux, the running exe will be updated if an upgrade becomes
1491     // available while the browser is running.  We need to save the last
1492     // modified time of the exe, so we can compare to determine if there is
1493     // an upgrade while the browser is kept alive by a persistent extension.
1494     upgrade_util::SaveLastModifiedTimeOfExe();
1495 #endif
1496
1497     // Record now as the last successful chrome start.
1498     GoogleUpdateSettings::SetLastRunTime();
1499
1500 #if defined(OS_MACOSX)
1501     // Call Recycle() here as late as possible, before going into the loop
1502     // because Start() will add things to it while creating the main window.
1503     if (parameters().autorelease_pool)
1504       parameters().autorelease_pool->Recycle();
1505 #endif
1506
1507     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1508     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1509
1510     // If we're running tests (ui_task is non-null), then we don't want to
1511     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1512     // RequestLanguageList
1513     if (parameters().ui_task == NULL) {
1514       // Request new variations seed information from server.
1515       chrome_variations::VariationsService* variations_service =
1516           browser_process_->variations_service();
1517       if (variations_service) {
1518         variations_service->StartRepeatedVariationsSeedFetch();
1519
1520 #if defined(OS_WIN)
1521         variations_service->StartGoogleUpdateRegistrySync();
1522 #endif
1523       }
1524
1525       TranslateDownloadManager::RequestLanguageList(profile_->GetPrefs());
1526     }
1527
1528     run_message_loop_ = true;
1529   } else {
1530     run_message_loop_ = false;
1531   }
1532   browser_creator_.reset();
1533 #endif  // !defined(OS_ANDROID)
1534
1535   performance_monitor::PerformanceMonitor::GetInstance()->Initialize();
1536
1537   PostBrowserStart();
1538
1539   chrome_prefs::SchedulePrefHashStoresUpdateCheck(profile_->GetPath());
1540
1541   if (parameters().ui_task) {
1542     // We end the startup timer here if we have parameters to run, because we
1543     // never start to run the main loop (where we normally stop the timer).
1544     startup_timer_->SignalStartupComplete(
1545         performance_monitor::StartupTimer::STARTUP_TEST);
1546     parameters().ui_task->Run();
1547     delete parameters().ui_task;
1548     run_message_loop_ = false;
1549   }
1550 #if defined(OS_ANDROID)
1551   // We never run the C++ main loop on Android, since the UI thread message
1552   // loop is controlled by the OS, so this is as close as we can get to
1553   // the start of the main loop
1554   if (result_code_ <= 0) {
1555     RecordBrowserStartupTime();
1556   }
1557 #endif
1558   return result_code_;
1559 }
1560
1561 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1562   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1563 #if defined(OS_ANDROID)
1564   // Chrome on Android does not use default MessageLoop. It has its own
1565   // Android specific MessageLoop
1566   NOTREACHED();
1567   return true;
1568 #else
1569   // Set the result code set in PreMainMessageLoopRun or set above.
1570   *result_code = result_code_;
1571   if (!run_message_loop_)
1572     return true;  // Don't run the default message loop.
1573
1574   // These should be invoked as close to the start of the browser's
1575   // UI thread message loop as possible to get a stable measurement
1576   // across versions.
1577   RecordBrowserStartupTime();
1578   startup_timer_->SignalStartupComplete(
1579       performance_monitor::StartupTimer::STARTUP_NORMAL);
1580
1581   DCHECK(base::MessageLoopForUI::IsCurrent());
1582   base::RunLoop run_loop;
1583
1584   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1585
1586   MetricsService::SetExecutionPhase(MetricsService::MAIN_MESSAGE_LOOP_RUN,
1587                                     g_browser_process->local_state());
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                                     g_browser_process->local_state());
1606   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1607
1608   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1609   startup_watcher_->Disarm();
1610
1611   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1612     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1613
1614   // Some tests don't set parameters.ui_task, so they started translate
1615   // language fetch that was never completed so we need to cleanup here
1616   // otherwise it will be done by the destructor in a wrong thread.
1617   TranslateService::Shutdown(parameters().ui_task == NULL);
1618
1619   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1620     process_singleton_->Cleanup();
1621
1622   // Stop all tasks that might run on WatchDogThread.
1623   ThreadWatcherList::StopWatchingAll();
1624
1625   browser_process_->metrics_service()->Stop();
1626
1627   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1628   browser_process_->StartTearDown();
1629 #endif
1630 }
1631
1632 void ChromeBrowserMainParts::PostDestroyThreads() {
1633 #if defined(OS_ANDROID)
1634   // On Android, there is no quit/exit. So the browser's main message loop will
1635   // not finish.
1636   NOTREACHED();
1637 #else
1638   browser_process_->PostDestroyThreads();
1639   // browser_shutdown takes care of deleting browser_process, so we need to
1640   // release it.
1641   ignore_result(browser_process_.release());
1642   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1643   master_prefs_.reset();
1644   process_singleton_.reset();
1645
1646   // We need to do this check as late as possible, but due to modularity, this
1647   // may be the last point in Chrome.  This would be more effective if done at
1648   // a higher level on the stack, so that it is impossible for an early return
1649   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1650   // paths from content/browser/browser_main.
1651   CHECK(MetricsService::UmaMetricsProperlyShutdown());
1652
1653 #if defined(OS_CHROMEOS)
1654   chromeos::CrosSettings::Shutdown();
1655 #endif
1656 #endif
1657 }
1658
1659 // Public members:
1660
1661 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1662   chrome_extra_parts_.push_back(parts);
1663 }