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 #if defined(TOOLKIT_GTK)
   8 #include <gtk/gtk.h>
   9 #endif
  10
  11 #include <string>
  12 #include <vector>
  13
  14 #include "base/at_exit.h"
  15 #include "base/bind.h"
  16 #include "base/command_line.h"
  17 #include "base/debug/crash_logging.h"
  18 #include "base/debug/debugger.h"
  19 #include "base/debug/trace_event.h"
  20 #include "base/file_util.h"
  21 #include "base/files/file_path.h"
  22 #include "base/metrics/field_trial.h"
  23 #include "base/metrics/histogram.h"
  24 #include "base/path_service.h"
  25 #include "base/prefs/json_pref_store.h"
  26 #include "base/prefs/pref_registry_simple.h"
  27 #include "base/prefs/pref_service.h"
  28 #include "base/prefs/pref_value_store.h"
  29 #include "base/prefs/scoped_user_pref_update.h"
  30 #include "base/process/process_info.h"
  31 #include "base/run_loop.h"
  32 #include "base/strings/string_number_conversions.h"
  33 #include "base/strings/string_piece.h"
  34 #include "base/strings/string_split.h"
  35 #include "base/strings/sys_string_conversions.h"
  36 #include "base/strings/utf_string_conversions.h"
  37 #include "base/sys_info.h"
  38 #include "base/threading/platform_thread.h"
  39 #include "base/time/time.h"
  40 #include "base/values.h"
  41 #include "build/build_config.h"
  42 #include "chrome/browser/about_flags.h"
  43 #include "chrome/browser/browser_process.h"
  44 #include "chrome/browser/browser_process_impl.h"
  45 #include "chrome/browser/browser_process_platform_part.h"
  46 #include "chrome/browser/browser_shutdown.h"
  47 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  48 #include "chrome/browser/component_updater/component_updater_service.h"
  49 #include "chrome/browser/component_updater/flash_component_installer.h"
  50 #include "chrome/browser/component_updater/pnacl/pnacl_component_installer.h"
  51 #include "chrome/browser/component_updater/recovery_component_installer.h"
  52 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  53 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  54 #include "chrome/browser/defaults.h"
  55 #include "chrome/browser/extensions/extension_protocols.h"
  56 #include "chrome/browser/extensions/extension_service.h"
  57 #include "chrome/browser/extensions/extension_system.h"
  58 #include "chrome/browser/extensions/startup_helper.h"
  59 #include "chrome/browser/first_run/first_run.h"
  60 #include "chrome/browser/first_run/upgrade_util.h"
  61 #include "chrome/browser/google/google_search_counter.h"
  62 #include "chrome/browser/google/google_util.h"
  63 #include "chrome/browser/gpu/gl_string_manager.h"
  64 #include "chrome/browser/jankometer.h"
  65 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  66 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  67 #include "chrome/browser/metrics/metrics_log.h"
  68 #include "chrome/browser/metrics/metrics_service.h"
  69 #include "chrome/browser/metrics/thread_watcher.h"
  70 #include "chrome/browser/metrics/tracking_synchronizer.h"
  71 #include "chrome/browser/metrics/variations/variations_http_header_provider.h"
  72 #include "chrome/browser/metrics/variations/variations_service.h"
  73 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  74 #include "chrome/browser/net/chrome_net_log.h"
  75 #include "chrome/browser/net/crl_set_fetcher.h"
  76 #include "chrome/browser/notifications/desktop_notification_service.h"
  77 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  78 #include "chrome/browser/performance_monitor/performance_monitor.h"
  79 #include "chrome/browser/performance_monitor/startup_timer.h"
  80 #include "chrome/browser/plugins/plugin_prefs.h"
  81 #include "chrome/browser/pref_service_flags_storage.h"
  82 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  83 #include "chrome/browser/prefs/command_line_pref_store.h"
  84 #include "chrome/browser/prefs/pref_metrics_service.h"
  85 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  86 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  87 #include "chrome/browser/process_singleton.h"
  88 #include "chrome/browser/profiles/profile.h"
  89 #include "chrome/browser/profiles/profile_manager.h"
  90 #include "chrome/browser/profiles/profiles_state.h"
  91 #include "chrome/browser/shell_integration.h"
  92 #include "chrome/browser/three_d_api_observer.h"
  93 #include "chrome/browser/translate/translate_manager.h"
  94 #include "chrome/browser/ui/app_list/app_list_service.h"
  95 #include "chrome/browser/ui/browser.h"
  96 #include "chrome/browser/ui/browser_finder.h"
  97 #include "chrome/browser/ui/host_desktop.h"
  98 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  99 #include "chrome/browser/ui/startup/startup_browser_creator.h"
 100 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
 101 #include "chrome/browser/ui/user_data_dir_dialog.h"
 102 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 103 #include "chrome/browser/user_data_dir_extractor.h"
 104 #include "chrome/common/chrome_constants.h"
 105 #include "chrome/common/chrome_paths.h"
 106 #include "chrome/common/chrome_result_codes.h"
 107 #include "chrome/common/chrome_switches.h"
 108 #include "chrome/common/crash_keys.h"
 109 #include "chrome/common/env_vars.h"
 110 #include "chrome/common/logging_chrome.h"
 111 #include "chrome/common/net/net_resource_provider.h"
 112 #include "chrome/common/pref_names.h"
 113 #include "chrome/common/profile_management_switches.h"
 114 #include "chrome/common/profiling.h"
 115 #include "chrome/installer/util/google_update_settings.h"
 116 #include "components/language_usage_metrics/language_usage_metrics.h"
 117 #include "components/nacl/browser/nacl_browser.h"
 118 #include "components/nacl/browser/nacl_process_host.h"
 119 #include "components/startup_metric_utils/startup_metric_utils.h"
 120 #include "content/public/browser/browser_thread.h"
 121 #include "content/public/browser/notification_observer.h"
 122 #include "content/public/browser/notification_registrar.h"
 123 #include "content/public/browser/notification_service.h"
 124 #include "content/public/browser/notification_types.h"
 125 #include "content/public/browser/site_instance.h"
 126 #include "content/public/common/content_client.h"
 127 #include "content/public/common/content_switches.h"
 128 #include "content/public/common/main_function_params.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_LINUX) && !defined(OS_CHROMEOS)
 145 #include "chrome/browser/first_run/upgrade_util_linux.h"
 146 #include "chrome/browser/sxs_linux.h"
 147 #endif
 148
 149 #if defined(OS_CHROMEOS)
 150 #include "chrome/browser/chromeos/settings/cros_settings.h"
 151 #include "chromeos/chromeos_switches.h"
 152 #include "chromeos/settings/cros_settings_names.h"
 153 #endif
 154
 155 // TODO(port): several win-only methods have been pulled out of this, but
 156 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 157 // other platforms. For now, it's just a stub. This is a serious work in
 158 // progress and should not be taken as an indication of a real refactoring.
 159
 160 #if defined(OS_WIN)
 161 #include "base/environment.h"  // For PreRead experiment.
 162 #include "base/win/windows_version.h"
 163 #include "chrome/browser/browser_util_win.h"
 164 #include "chrome/browser/chrome_browser_main_win.h"
 165 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 166 #include "chrome/browser/first_run/upgrade_util_win.h"
 167 #include "chrome/browser/ui/network_profile_bubble.h"
 168 #include "chrome/common/net/url_fixer_upper.h"
 169 #include "chrome/installer/util/helper.h"
 170 #include "chrome/installer/util/install_util.h"
 171 #include "chrome/installer/util/shell_util.h"
 172 #include "net/base/net_util.h"
 173 #include "printing/printed_document.h"
 174 #include "ui/base/l10n/l10n_util_win.h"
 175 #include "ui/gfx/win/dpi.h"
 176 #endif  // defined(OS_WIN)
 177
 178 #if defined(OS_MACOSX)
 179 #include <Security/Security.h>
 180
 181 #include "base/mac/scoped_nsautorelease_pool.h"
 182 #include "chrome/browser/mac/keystone_glue.h"
 183 #endif
 184
 185 #if defined(ENABLE_RLZ)
 186 #include "chrome/browser/rlz/rlz.h"
 187 #endif
 188
 189 #if defined(TOOLKIT_VIEWS)
 190 #include "ui/views/focus/accelerator_handler.h"
 191 #endif
 192
 193 #if defined(USE_AURA)
 194 #include "ui/aura/env.h"
 195 #endif
 196
 197 using content::BrowserThread;
 198
 199 namespace {
 200
 201 // This function provides some ways to test crash and assertion handling
 202 // behavior of the program.
 203 void HandleTestParameters(const CommandLine& command_line) {
 204   // This parameter causes an assertion.
 205   if (command_line.HasSwitch(switches::kBrowserAssertTest)) {
 206     DCHECK(false);
 207   }
 208
 209   // This parameter causes a null pointer crash (crash reporter trigger).
 210   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 211     int* bad_pointer = NULL;
 212     *bad_pointer = 0;
 213   }
 214 }
 215
 216 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 217 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 218                         const std::vector<GURL>& new_tabs) {
 219   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 220        it != new_tabs.end(); ++it) {
 221     if (it->is_valid())
 222       browser_creator->AddFirstRunTab(*it);
 223   }
 224 }
 225 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 226
 227 // Returns the new local state object, guaranteed non-NULL.
 228 // |local_state_task_runner| must be a shutdown-blocking task runner.
 229 PrefService* InitializeLocalState(
 230     base::SequencedTaskRunner* local_state_task_runner,
 231     const CommandLine& parsed_command_line) {
 232   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 233   base::FilePath local_state_path;
 234   PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 235   bool local_state_file_exists = base::PathExists(local_state_path);
 236
 237   // Load local state.  This includes the application locale so we know which
 238   // locale dll to load.  This also causes local state prefs to be registered.
 239   PrefService* local_state = g_browser_process->local_state();
 240   DCHECK(local_state);
 241
 242 #if defined(OS_WIN)
 243   if (first_run::IsChromeFirstRun()) {
 244     // During first run we read the google_update registry key to find what
 245     // language the user selected when downloading the installer. This
 246     // becomes our default language in the prefs.
 247     // Other platforms obey the system locale.
 248     std::wstring install_lang;
 249     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 250       local_state->SetString(prefs::kApplicationLocale,
 251                              WideToASCII(install_lang));
 252     }
 253   }
 254 #endif  // defined(OS_WIN)
 255
 256   // If the local state file for the current profile doesn't exist and the
 257   // parent profile command line flag is present, then we should inherit some
 258   // local state from the parent profile.
 259   // Checking that the local state file for the current profile doesn't exist
 260   // is the most robust way to determine whether we need to inherit or not
 261   // since the parent profile command line flag can be present even when the
 262   // current profile is not a new one, and in that case we do not want to
 263   // inherit and reset the user's setting.
 264   //
 265   // TODO(mnissler): We should probably just instantiate a
 266   // JSONPrefStore here instead of an entire PrefService. Once this is
 267   // addressed, the call to browser_prefs::RegisterLocalState can move
 268   // to chrome_prefs::CreateLocalState.
 269   if (!local_state_file_exists &&
 270       parsed_command_line.HasSwitch(switches::kParentProfile)) {
 271     base::FilePath parent_profile =
 272         parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 273     scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 274     scoped_ptr<PrefService> parent_local_state(
 275         chrome_prefs::CreateLocalState(
 276             parent_profile,
 277             local_state_task_runner,
 278             g_browser_process->policy_service(),
 279             registry,
 280             false));
 281     registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 282     // Right now, we only inherit the locale setting from the parent profile.
 283     local_state->SetString(
 284         prefs::kApplicationLocale,
 285         parent_local_state->GetString(prefs::kApplicationLocale));
 286   }
 287
 288 #if defined(OS_CHROMEOS)
 289   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 290     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 291     // Ensure that we start with owner's locale.
 292     if (!owner_locale.empty() &&
 293         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 294         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 295       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 296     }
 297   }
 298 #endif
 299
 300   return local_state;
 301 }
 302
 303 // Initializes the primary profile, possibly doing some user prompting to pick
 304 // a fallback profile. Returns the newly created profile, or NULL if startup
 305 // should not continue.
 306 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 307                               const base::FilePath& user_data_dir,
 308                               const CommandLine& parsed_command_line) {
 309   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 310   base::Time start = base::Time::Now();
 311   if (profiles::IsMultipleProfilesEnabled() &&
 312       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 313     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
 314         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 315     // Clear kProfilesLastActive since the user only wants to launch a specific
 316     // profile.
 317     ListPrefUpdate update(g_browser_process->local_state(),
 318                           prefs::kProfilesLastActive);
 319     base::ListValue* profile_list = update.Get();
 320     profile_list->Clear();
 321   }
 322
 323   Profile* profile = NULL;
 324 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 325   // On ChromeOS and Android the ProfileManager will use the same path as the
 326   // one we got passed. GetActiveUserProfile will therefore use the correct path
 327   // automatically.
 328   DCHECK_EQ(user_data_dir.value(),
 329             g_browser_process->profile_manager()->user_data_dir().value());
 330   profile = ProfileManager::GetActiveUserProfile();
 331 #else
 332   base::FilePath profile_path =
 333       GetStartupProfilePath(user_data_dir, parsed_command_line);
 334   profile = g_browser_process->profile_manager()->GetProfile(
 335       profile_path);
 336
 337   // If we're using the --new-profile-management flag and this profile is
 338   // signed out, then we should show the user manager instead. By switching
 339   // the active profile to the guest profile we ensure that no
 340   // browser windows will be opened for the guest profile.
 341   if (switches::IsNewProfileManagement() && !profile->IsGuestSession()) {
 342     ProfileInfoCache& cache =
 343         g_browser_process->profile_manager()->GetProfileInfoCache();
 344     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 345
 346     if (cache.ProfileIsSigninRequiredAtIndex(profile_index))
 347       profile = g_browser_process->profile_manager()->GetProfile(
 348           ProfileManager::GetGuestProfilePath());
 349   }
 350 #endif
 351   if (profile) {
 352     UMA_HISTOGRAM_LONG_TIMES(
 353         "Startup.CreateFirstProfile", base::Time::Now() - start);
 354     return profile;
 355   }
 356
 357 #if !defined(OS_WIN)
 358   // TODO(port): fix this.  See comments near the definition of
 359   // user_data_dir.  It is better to CHECK-fail here than it is to
 360   // silently exit because of missing code in the above test.
 361   CHECK(profile) << "Cannot get default profile.";
 362 #endif
 363
 364   return NULL;
 365 }
 366
 367 #if defined(OS_MACOSX)
 368 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 369                           SecKeychainCallbackInfo* info, void* context) {
 370   return noErr;
 371 }
 372 #endif
 373
 374 void RegisterComponentsForUpdate(const CommandLine& command_line) {
 375   component_updater::ComponentUpdateService* cus =
 376       g_browser_process->component_updater();
 377
 378   // Registration can be before or after cus->Start() so it is ok to post
 379   // a task to the UI thread to do registration once you done the necessary
 380   // file IO to know you existing component version.
 381 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 382   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 383   RegisterPepperFlashComponent(cus);
 384   RegisterSwiftShaderComponent(cus);
 385 #endif
 386
 387 #if !defined(OS_ANDROID)
 388   g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(
 389       cus, command_line);
 390 #endif
 391
 392 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 393   RegisterWidevineCdmComponent(cus);
 394 #endif
 395
 396 #if !defined(OS_CHROMEOS)
 397   // CRLSetFetcher attempts to load a CRL set from either the local disk or
 398   // network.
 399   if (!command_line.HasSwitch(switches::kDisableCRLSets))
 400     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus);
 401 #endif
 402
 403   cus->Start();
 404 }
 405
 406 #if !defined(OS_ANDROID)
 407 bool ProcessSingletonNotificationCallback(
 408     const CommandLine& command_line,
 409     const base::FilePath& current_directory) {
 410   // Drop the request if the browser process is already in shutdown path.
 411   if (!g_browser_process || g_browser_process->IsShuttingDown())
 412     return false;
 413
 414   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 415     std::string start_time_string =
 416         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 417     int64 remote_start_time;
 418     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 419       base::TimeDelta elapsed =
 420           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 421       if (command_line.HasSwitch(switches::kFastStart)) {
 422         UMA_HISTOGRAM_LONG_TIMES(
 423             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 424       } else {
 425         UMA_HISTOGRAM_LONG_TIMES(
 426             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 427       }
 428     }
 429   }
 430
 431   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 432       command_line);
 433
 434   // TODO(erikwright): Consider removing this - AFAIK it is no longer used.
 435   // Handle the --uninstall-extension startup action. This needs to done here in
 436   // the process that is running with the target profile, otherwise the
 437   // uninstall will fail to unload and remove all components.
 438   if (command_line.HasSwitch(switches::kUninstallExtension)) {
 439     // The uninstall extension switch can't be combined with the profile
 440     // directory switch.
 441     DCHECK(!command_line.HasSwitch(switches::kProfileDirectory));
 442
 443     Profile* profile = ProfileManager::GetLastUsedProfile();
 444     if (!profile) {
 445       // We should never be called before the profile has been created.
 446       NOTREACHED();
 447       return true;
 448     }
 449
 450     extensions::StartupHelper extension_startup_helper;
 451     extension_startup_helper.UninstallExtension(command_line, profile);
 452     return true;
 453   }
 454
 455   base::FilePath user_data_dir =
 456       g_browser_process->profile_manager()->user_data_dir();
 457   base::FilePath startup_profile_dir =
 458       GetStartupProfilePath(user_data_dir, command_line);
 459
 460   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 461       command_line, current_directory, startup_profile_dir);
 462   return true;
 463 }
 464 #endif  // !defined(OS_ANDROID)
 465
 466 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
 467   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 468     std::string port_str =
 469         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 470     int port;
 471     if (base::StringToInt(port_str, &port) && port > 0 && port < 65535) {
 472       std::string frontend_str;
 473       if (command_line.HasSwitch(::switches::kRemoteDebuggingFrontend)) {
 474         frontend_str = command_line.GetSwitchValueASCII(
 475             ::switches::kRemoteDebuggingFrontend);
 476       }
 477       g_browser_process->CreateDevToolsHttpProtocolHandler(
 478           chrome::HOST_DESKTOP_TYPE_NATIVE,
 479           "127.0.0.1",
 480           port,
 481           frontend_str);
 482     } else {
 483       DLOG(WARNING) << "Invalid http debugger port number " << port;
 484     }
 485   }
 486 }
 487
 488 // Heap allocated class that listens for first page load, kicks off stat
 489 // recording and then deletes itself.
 490 class LoadCompleteListener : public content::NotificationObserver {
 491  public:
 492   LoadCompleteListener() {
 493     registrar_.Add(this,
 494                    content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
 495                    content::NotificationService::AllSources());
 496   }
 497   virtual ~LoadCompleteListener() {}
 498
 499   // content::NotificationObserver implementation.
 500   virtual void Observe(int type,
 501                        const content::NotificationSource& source,
 502                        const content::NotificationDetails& details) OVERRIDE {
 503     DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type);
 504     startup_metric_utils::OnInitialPageLoadComplete();
 505     delete this;
 506   }
 507
 508  private:
 509   content::NotificationRegistrar registrar_;
 510   DISALLOW_COPY_AND_ASSIGN(LoadCompleteListener);
 511 };
 512
 513 }  // namespace
 514
 515 namespace chrome_browser {
 516 // This error message is not localized because we failed to load the
 517 // localization data files.
 518 const char kMissingLocaleDataTitle[] = "Missing File Error";
 519 const char kMissingLocaleDataMessage[] =
 520     "Unable to find locale data files. Please reinstall.";
 521 }  // namespace chrome_browser
 522
 523 // BrowserMainParts ------------------------------------------------------------
 524
 525 // static
 526 bool ChromeBrowserMainParts::disable_enforcing_cookie_policies_for_tests_ =
 527     false;
 528
 529 ChromeBrowserMainParts::ChromeBrowserMainParts(
 530     const content::MainFunctionParams& parameters)
 531     : parameters_(parameters),
 532       parsed_command_line_(parameters.command_line),
 533       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 534       startup_watcher_(new StartupTimeBomb()),
 535       shutdown_watcher_(new ShutdownWatcherHelper()),
 536       startup_timer_(new performance_monitor::StartupTimer()),
 537       browser_field_trials_(parameters.command_line),
 538       translate_manager_(NULL),
 539       profile_(NULL),
 540       run_message_loop_(true),
 541       notify_result_(ProcessSingleton::PROCESS_NONE),
 542       local_state_(NULL),
 543       restart_last_session_(false) {
 544   // If we're running tests (ui_task is non-null).
 545   if (parameters.ui_task)
 546     browser_defaults::enable_help_app = false;
 547
 548   // Chrome disallows cookies by default. All code paths that want to use
 549   // cookies need to go through one of Chrome's URLRequestContexts which have
 550   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 551   if (!disable_enforcing_cookie_policies_for_tests_)
 552     net::URLRequest::SetDefaultCookiePolicyToBlock();
 553 }
 554
 555 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 556   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 557     delete chrome_extra_parts_[i];
 558   chrome_extra_parts_.clear();
 559 }
 560
 561 // This will be called after the command-line has been mutated by about:flags
 562 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 563   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 564   // Must initialize metrics after labs have been converted into switches,
 565   // but before field trials are set up (so that client ID is available for
 566   // one-time randomized field trials).
 567 #if defined(ARCH_CPU_64_BITS)
 568   MetricsLog::set_version_extension("-64");
 569 #endif  // defined(ARCH_CPU_64_BITS)
 570
 571   // Initialize FieldTrialList to support FieldTrials that use one-time
 572   // randomization.
 573   MetricsService* metrics = browser_process_->metrics_service();
 574   MetricsService::ReportingState reporting_state =
 575       IsMetricsReportingEnabled() ? MetricsService::REPORTING_ENABLED :
 576                                     MetricsService::REPORTING_DISABLED;
 577   if (reporting_state == MetricsService::REPORTING_ENABLED)
 578     metrics->ForceClientIdCreation();  // Needed below.
 579   field_trial_list_.reset(
 580       new base::FieldTrialList(
 581           metrics->CreateEntropyProvider(reporting_state).release()));
 582
 583   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 584   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 585     base::FieldTrial::EnableBenchmarking();
 586
 587   // Ensure any field trials specified on the command line are initialized.
 588   // Also stop the metrics service so that we don't pollute UMA.
 589   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 590     // Create field trials without activating them, so that this behaves in a
 591     // consistent manner with field trials created from the server.
 592     bool result = base::FieldTrialList::CreateTrialsFromString(
 593         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 594         base::FieldTrialList::DONT_ACTIVATE_TRIALS);
 595     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 596                   << " list specified.";
 597   }
 598   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 599     // Create default variation ids which will always be included in the
 600     // X-Client-Data request header.
 601     chrome_variations::VariationsHttpHeaderProvider* provider =
 602         chrome_variations::VariationsHttpHeaderProvider::GetInstance();
 603     bool result = provider->SetDefaultVariationIds(
 604         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 605     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 606                   << " list specified.";
 607   }
 608   chrome_variations::VariationsService* variations_service =
 609       browser_process_->variations_service();
 610   if (variations_service)
 611     variations_service->CreateTrialsFromSeed();
 612
 613   // This must be called after the local state is initialized.
 614   browser_field_trials_.SetupFieldTrials(local_state_);
 615
 616   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 617   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 618   // Even though base::Bind does AddRef and Release, the object will not be
 619   // deleted after the Task is executed.
 620   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 621
 622   // Now that field trials have been created, initializes metrics recording.
 623   metrics->InitializeMetricsRecordingState(reporting_state);
 624 }
 625
 626 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 627
 628 void ChromeBrowserMainParts::StartMetricsRecording() {
 629   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 630   MetricsService* metrics = g_browser_process->metrics_service();
 631
 632   const bool only_do_metrics_recording =
 633       parsed_command_line_.HasSwitch(switches::kMetricsRecordingOnly) ||
 634       parsed_command_line_.HasSwitch(switches::kEnableBenchmarking);
 635   if (only_do_metrics_recording) {
 636     // If we're testing then we don't care what the user preference is, we turn
 637     // on recording, but not reporting, otherwise tests fail.
 638     metrics->StartRecordingForTests();
 639     return;
 640   }
 641
 642   if (IsMetricsReportingEnabled())
 643     metrics->Start();
 644 }
 645
 646 bool ChromeBrowserMainParts::IsMetricsReportingEnabled() {
 647   // If the user permits metrics reporting with the checkbox in the
 648   // prefs, we turn on recording.  We disable metrics completely for
 649   // non-official builds.  This can be forced with a flag.
 650   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 651   if (command_line->HasSwitch(switches::kEnableMetricsReportingForTesting))
 652     return true;
 653
 654   bool enabled = false;
 655   // The debug build doesn't send UMA logs when FieldTrials are forced.
 656   if (command_line->HasSwitch(switches::kForceFieldTrials))
 657     return false;
 658
 659 #if defined(GOOGLE_CHROME_BUILD)
 660 #if defined(OS_CHROMEOS)
 661   chromeos::CrosSettings::Get()->GetBoolean(chromeos::kStatsReportingPref,
 662                                             &enabled);
 663 #else
 664   enabled = local_state_->GetBoolean(prefs::kMetricsReportingEnabled);
 665 #endif  // #if defined(OS_CHROMEOS)
 666 #endif  // defined(GOOGLE_CHROME_BUILD)
 667   return enabled;
 668 }
 669
 670 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 671   // Don't record any metrics if UI was displayed before this point e.g.
 672   // warning dialogs.
 673   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 674     return;
 675
 676 #if defined(OS_ANDROID)
 677   // On Android the first run is handled in Java code, and the C++ side of
 678   // Chrome doesn't know if this is the first run. This will cause some
 679   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 680   // rare).
 681   bool is_first_run = false;
 682 #else
 683   bool is_first_run = first_run::IsChromeFirstRun();
 684 #endif
 685
 686 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 687 // platforms.
 688 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 689   const base::Time process_creation_time =
 690       base::CurrentProcessInfo::CreationTime();
 691
 692   if (!is_first_run && !process_creation_time.is_null()) {
 693     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 694     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 695   }
 696 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 697
 698   // Record collected startup metrics.
 699   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 700
 701   // Deletes self.
 702   new LoadCompleteListener();
 703 }
 704
 705 // -----------------------------------------------------------------------------
 706 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 707
 708 #if defined(OS_WIN)
 709 #define DLLEXPORT __declspec(dllexport)
 710
 711 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 712 extern "C" {
 713 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 714 }
 715
 716 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 717   // Need an instance of AtExitManager to handle singleton creations and
 718   // deletions.  We need this new instance because, the old instance created
 719   // in ChromeMain() got destructed when the function returned.
 720   base::AtExitManager exit_manager;
 721   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 722 }
 723 #endif
 724
 725 // content::BrowserMainParts implementation ------------------------------------
 726
 727 void ChromeBrowserMainParts::PreEarlyInitialization() {
 728   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 729   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 730     chrome_extra_parts_[i]->PreEarlyInitialization();
 731 }
 732
 733 void ChromeBrowserMainParts::PostEarlyInitialization() {
 734   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 735   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 736     chrome_extra_parts_[i]->PostEarlyInitialization();
 737 }
 738
 739 void ChromeBrowserMainParts::ToolkitInitialized() {
 740   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 741   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 742     chrome_extra_parts_[i]->ToolkitInitialized();
 743 }
 744
 745 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 746   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 747   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 748     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 749 }
 750
 751 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 752   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 753   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 754     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 755 }
 756
 757 int ChromeBrowserMainParts::PreCreateThreads() {
 758   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 759   result_code_ = PreCreateThreadsImpl();
 760   // These members must be initialized before returning from this function.
 761 #if !defined(OS_ANDROID)
 762   DCHECK(master_prefs_.get());
 763   DCHECK(browser_creator_.get());
 764 #endif
 765
 766   if (result_code_ == 0) {
 767     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 768       chrome_extra_parts_[i]->PreCreateThreads();
 769   }
 770
 771   return result_code_;
 772 }
 773
 774 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 775   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 776   run_message_loop_ = false;
 777   {
 778     TRACE_EVENT0("startup",
 779       "ChromeBrowserMainParts::PreCreateThreadsImpl:GetUserDataDir");
 780     user_data_dir_ = chrome::GetUserDataDir(parameters());
 781   }
 782
 783   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 784   MediaCaptureDevicesDispatcher::GetInstance();
 785
 786   // Android's first run is done in Java instead of native.
 787 #if !defined(OS_ANDROID)
 788   process_singleton_.reset(new ChromeProcessSingleton(
 789       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 790
 791   // Cache first run state early.
 792   first_run::IsChromeFirstRun();
 793 #endif
 794
 795   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 796       JsonPrefStore::GetTaskRunnerForFile(
 797           base::FilePath(chrome::kLocalStorePoolName),
 798           BrowserThread::GetBlockingPool());
 799
 800   {
 801     TRACE_EVENT0("startup",
 802       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 803     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 804                                                   parsed_command_line()));
 805   }
 806
 807   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 808     TRACE_EVENT0("startup",
 809         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 810     // User wants to override default tracking status.
 811     std::string flag =
 812       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 813     // Default to basic profiling (no parent child support).
 814     tracked_objects::ThreadData::Status status =
 815           tracked_objects::ThreadData::PROFILING_ACTIVE;
 816     if (flag.compare("0") != 0)
 817       status = tracked_objects::ThreadData::DEACTIVATED;
 818     else if (flag.compare("child") != 0)
 819       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 820     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 821   }
 822
 823   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 824     tracking_objects_.set_output_file_path(
 825         parsed_command_line().GetSwitchValuePath(
 826             switches::kProfilingOutputFile));
 827   }
 828
 829   local_state_ = InitializeLocalState(
 830       local_state_task_runner.get(), parsed_command_line());
 831
 832 #if !defined(OS_ANDROID)
 833   // These members must be initialized before returning from this function.
 834   master_prefs_.reset(new first_run::MasterPrefs);
 835   // Android doesn't use StartupBrowserCreator.
 836   browser_creator_.reset(new StartupBrowserCreator);
 837   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 838   chrome::UMABrowsingActivityObserver::Init();
 839 #endif
 840
 841 #if !defined(OS_CHROMEOS)
 842   // Convert active labs into switches. This needs to be done before
 843   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 844   // affected by experiment flags (--touch-optimized-ui in particular).
 845   // On ChromeOS system level flags are applied from the device settings from
 846   // the session manager.
 847   {
 848     TRACE_EVENT0("startup",
 849         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 850     about_flags::PrefServiceFlagsStorage flags_storage_(
 851         g_browser_process->local_state());
 852     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 853                                         CommandLine::ForCurrentProcess(),
 854                                         about_flags::kAddSentinels);
 855   }
 856 #endif
 857
 858   local_state_->UpdateCommandLinePrefStore(
 859       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 860
 861   // Reset the command line in the crash report details, since we may have
 862   // just changed it to include experiments.
 863   crash_keys::SetSwitchesFromCommandLine(CommandLine::ForCurrentProcess());
 864
 865   // If we're running tests (ui_task is non-null), then the ResourceBundle
 866   // has already been initialized.
 867   if (parameters().ui_task &&
 868       !local_state_->IsManagedPreference(prefs::kApplicationLocale)) {
 869     browser_process_->SetApplicationLocale("en-US");
 870   } else {
 871     // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 872     // needed when loading the MainMenu.nib and the language doesn't depend on
 873     // anything since it comes from Cocoa.
 874 #if defined(OS_MACOSX)
 875     browser_process_->SetApplicationLocale(l10n_util::GetLocaleOverride());
 876 #else
 877     const std::string locale =
 878         local_state_->GetString(prefs::kApplicationLocale);
 879
 880     // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 881     // method InitSharedInstance is ignored.
 882
 883     TRACE_EVENT_BEGIN0("startup",
 884         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 885     const std::string loaded_locale =
 886         ResourceBundle::InitSharedInstanceWithLocale(locale, NULL);
 887     TRACE_EVENT_END0("startup",
 888         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 889
 890     if (loaded_locale.empty() &&
 891         !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 892       ShowMissingLocaleMessageBox();
 893       return chrome::RESULT_CODE_MISSING_DATA;
 894     }
 895     CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 896     browser_process_->SetApplicationLocale(loaded_locale);
 897
 898     base::FilePath resources_pack_path;
 899     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 900     {
 901       TRACE_EVENT0("startup",
 902           "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 903       ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 904           resources_pack_path, ui::SCALE_FACTOR_NONE);
 905     }
 906 #endif  // defined(OS_MACOSX)
 907   }
 908
 909 #if defined(TOOLKIT_GTK)
 910   g_set_application_name(l10n_util::GetStringUTF8(IDS_PRODUCT_NAME).c_str());
 911 #endif
 912
 913   // Android does first run in Java instead of native.
 914   // Chrome OS has its own out-of-box-experience code.
 915 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 916   // On first run, we need to process the predictor preferences before the
 917   // browser's profile_manager object is created, but after ResourceBundle
 918   // is initialized.
 919   if (first_run::IsChromeFirstRun()) {
 920     first_run::ProcessMasterPreferencesResult pmp_result =
 921         first_run::ProcessMasterPreferences(user_data_dir_,
 922                                             master_prefs_.get());
 923     if (pmp_result == first_run::EULA_EXIT_NOW)
 924       return chrome::RESULT_CODE_EULA_REFUSED;
 925
 926     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 927         !parsed_command_line().HasSwitch(switches::kAppId) &&
 928         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 929       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 930     }
 931
 932     // TODO(macourteau): refactor preferences that are copied from
 933     // master_preferences into local_state, as a "local_state" section in
 934     // master preferences. If possible, a generic solution would be prefered
 935     // over a copy one-by-one of specific preferences. Also see related TODO
 936     // in first_run.h.
 937
 938     // Store the initial VariationsService seed in local state, if it exists
 939     // in master prefs.
 940     if (!master_prefs_->variations_seed.empty()) {
 941       local_state_->SetString(prefs::kVariationsSeed,
 942                               master_prefs_->variations_seed);
 943       // Set the variation seed date to the current system time. If the user's
 944       // clock is incorrect, this may cause some field trial expiry checks to
 945       // not do the right thing until the next seed update from the server,
 946       // when this value will be updated.
 947       local_state_->SetInt64(prefs::kVariationsSeedDate,
 948                              base::Time::Now().ToInternalValue());
 949     }
 950
 951     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 952       local_state_->SetString(
 953           prefs::kBrowserSuppressDefaultBrowserPrompt,
 954           master_prefs_->suppress_default_browser_prompt_for_version);
 955     }
 956
 957     AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->HandleFirstRun();
 958   }
 959 #endif
 960
 961 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 962   // Set the product channel for crash reports.
 963   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 964       chrome::VersionInfo::GetVersionStringModifier());
 965 #endif
 966
 967   // Initialize tracking synchronizer system.
 968   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 969
 970   // Now that all preferences have been registered, set the install date
 971   // for the uninstall metrics if this is our first run. This only actually
 972   // gets used if the user has metrics reporting enabled at uninstall time.
 973   int64 install_date = local_state_->GetInt64(prefs::kInstallDate);
 974   if (install_date == 0)
 975     local_state_->SetInt64(prefs::kInstallDate, base::Time::Now().ToTimeT());
 976
 977 #if defined(OS_MACOSX)
 978   // Get the Keychain API to register for distributed notifications on the main
 979   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 980   // which doesn't. This ensures those notifications will get delivered
 981   // properly. See issue 37766.
 982   // (Note that the callback mask here is empty. I don't want to register for
 983   // any callbacks, I just want to initialize the mechanism.)
 984   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 985 #endif
 986
 987 #if defined(OS_CHROMEOS)
 988   // Must be done after g_browser_process is constructed, before
 989   // SetupMetricsAndFieldTrials().
 990   chromeos::CrosSettings::Initialize();
 991 #endif
 992
 993   // Now the command line has been mutated based on about:flags, we can setup
 994   // metrics and initialize field trials. The field trials are needed by
 995   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
 996   SetupMetricsAndFieldTrials();
 997
 998   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
 999   browser_process_->PreCreateThreads();
1000
1001   return content::RESULT_CODE_NORMAL_EXIT;
1002 }
1003
1004 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1005   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1006   result_code_ = PreMainMessageLoopRunImpl();
1007
1008   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1009     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1010 }
1011
1012 // PreMainMessageLoopRun calls these extra stages in the following order:
1013 //  PreMainMessageLoopRunImpl()
1014 //   ... initial setup, including browser_process_ setup.
1015 //   PreProfileInit()
1016 //   ... additional setup, including CreateProfile()
1017 //   PostProfileInit()
1018 //   ... additional setup
1019 //   PreBrowserStart()
1020 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1021 //   PostBrowserStart()
1022
1023 void ChromeBrowserMainParts::PreProfileInit() {
1024   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1025
1026   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1027     chrome_extra_parts_[i]->PreProfileInit();
1028 }
1029
1030 void ChromeBrowserMainParts::PostProfileInit() {
1031   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1032   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1033   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1034     chrome_extra_parts_[i]->PostProfileInit();
1035 }
1036
1037 void ChromeBrowserMainParts::PreBrowserStart() {
1038   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1039   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1040     chrome_extra_parts_[i]->PreBrowserStart();
1041
1042   three_d_observer_.reset(new ThreeDAPIObserver());
1043 }
1044
1045 void ChromeBrowserMainParts::PostBrowserStart() {
1046   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1047   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1048     chrome_extra_parts_[i]->PostBrowserStart();
1049 #if !defined(OS_ANDROID)
1050   // Allow ProcessSingleton to process messages.
1051   process_singleton_->Unlock();
1052 #endif
1053 }
1054
1055 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1056   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1057   // Android updates the metrics service dynamically depending on whether the
1058   // application is in the foreground or not. Do not start here.
1059 #if !defined(OS_ANDROID)
1060   // Now that the file thread has been started, start recording.
1061   StartMetricsRecording();
1062 #endif
1063
1064   // Create watchdog thread after creating all other threads because it will
1065   // watch the other threads and they must be running.
1066   browser_process_->watchdog_thread();
1067
1068   // Do any initializating in the browser process that requires all threads
1069   // running.
1070   browser_process_->PreMainMessageLoopRun();
1071
1072   // Record last shutdown time into a histogram.
1073   browser_shutdown::ReadLastShutdownInfo();
1074
1075 #if defined(OS_WIN)
1076   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1077   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1078   // upgrade/uninstall happen separately.
1079   bool already_running = browser_util::IsBrowserAlreadyRunning();
1080
1081   // If the command line specifies 'uninstall' then we need to work here
1082   // unless we detect another chrome browser running.
1083   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1084     return DoUninstallTasks(already_running);
1085   }
1086
1087   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1088       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1089     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1090         parsed_command_line_);
1091   }
1092 #endif
1093
1094   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1095     return ShellIntegration::SetAsDefaultBrowser() ?
1096         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1097         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1098   }
1099
1100 #if defined(USE_AURA)
1101   // Env creates the compositor. Aura widgets need the compositor to be created
1102   // before they can be initialized by the browser.
1103   aura::Env::CreateInstance();
1104 #endif
1105
1106   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1107 #if !defined(OS_ANDROID)
1108   // If the command line specifies --pack-extension, attempt the pack extension
1109   // startup action and exit.
1110   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1111     extensions::StartupHelper extension_startup_helper;
1112     if (extension_startup_helper.PackExtension(parsed_command_line()))
1113       return content::RESULT_CODE_NORMAL_EXIT;
1114     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1115   }
1116
1117   // If we're being launched just to check the connector policy, we are
1118   // short-lived and don't want to be passing that switch off.
1119   bool pass_command_line = !parsed_command_line().HasSwitch(
1120       switches::kCheckCloudPrintConnectorPolicy);
1121
1122   if (pass_command_line) {
1123     // When another process is running, use that process instead of starting a
1124     // new one. NotifyOtherProcess will currently give the other process up to
1125     // 20 seconds to respond. Note that this needs to be done before we attempt
1126     // to read the profile.
1127     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1128     UMA_HISTOGRAM_ENUMERATION("NotifyOtherProcessOrCreate.Result",
1129                                notify_result_,
1130                                ProcessSingleton::NUM_NOTIFY_RESULTS);
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
1165 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1166   if (sxs_linux::ShouldMigrateUserDataDir())
1167     return sxs_linux::MigrateUserDataDir();
1168 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1169
1170   first_run::CreateSentinelIfNeeded();
1171 #endif  // !defined(OS_ANDROID)
1172
1173   // Desktop construction occurs here, (required before profile creation).
1174   PreProfileInit();
1175
1176   std::string try_chrome =
1177       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1178   if (!try_chrome.empty()) {
1179 #if defined(OS_WIN)
1180     // Setup.exe has determined that we need to run a retention experiment
1181     // and has lauched chrome to show the experiment UI. It is guaranteed that
1182     // no other Chrome is currently running as the process singleton was
1183     // sucessfully grabbed above.
1184     int try_chrome_int;
1185     base::StringToInt(try_chrome, &try_chrome_int);
1186     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1187         try_chrome_int,
1188         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1189                    base::Unretained(process_singleton_.get())));
1190     if (answer == TryChromeDialogView::NOT_NOW)
1191       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1192     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1193       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1194     // At this point the user is willing to try chrome again.
1195     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1196       // Only set in the unattended case, the interactive case is Windows 8.
1197       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1198           ShellIntegration::SET_DEFAULT_UNATTENDED)
1199         ShellIntegration::SetAsDefaultBrowser();
1200     }
1201 #else
1202     // We don't support retention experiments on Mac or Linux.
1203     return content::RESULT_CODE_NORMAL_EXIT;
1204 #endif  // defined(OS_WIN)
1205   }
1206
1207   // Profile creation ----------------------------------------------------------
1208
1209   MetricsService::SetExecutionPhase(MetricsService::CREATE_PROFILE);
1210   profile_ = CreatePrimaryProfile(parameters(),
1211                                   user_data_dir_,
1212                                   parsed_command_line());
1213   if (!profile_)
1214     return content::RESULT_CODE_NORMAL_EXIT;
1215
1216 #if defined(ENABLE_BACKGROUND)
1217   // Autoload any profiles which are running background apps.
1218   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1219   browser_process_->profile_manager()->AutoloadProfiles();
1220 #endif
1221   // Post-profile init ---------------------------------------------------------
1222
1223 #if defined(OS_WIN)
1224   // Do the tasks if chrome has been upgraded while it was last running.
1225   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1226     return content::RESULT_CODE_NORMAL_EXIT;
1227
1228   // Check if there is any machine level Chrome installed on the current
1229   // machine. If yes and the current Chrome process is user level, we do not
1230   // allow the user level Chrome to run. So we notify the user and uninstall
1231   // user level Chrome.
1232   // Note this check should only happen here, after all the checks above
1233   // (uninstall, resource bundle initialization, other chrome browser
1234   // processes etc).
1235   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1236     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1237 #endif
1238
1239   // Create the TranslateManager singleton.
1240   translate_manager_ = TranslateManager::GetInstance();
1241   DCHECK(translate_manager_ != NULL);
1242
1243   // Needs to be done before PostProfileInit, since login manager on CrOS is
1244   // called inside PostProfileInit.
1245   content::WebUIControllerFactory::RegisterFactory(
1246       ChromeWebUIControllerFactory::GetInstance());
1247
1248   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1249   // So make sure to create it before that.
1250 #if !defined(DISABLE_NACL)
1251   NaClBrowserDelegateImpl* delegate = new NaClBrowserDelegateImpl(
1252     extensions::ExtensionSystem::Get(profile_)->info_map());
1253   nacl::NaClBrowser::SetDelegate(delegate);
1254 #endif
1255
1256   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1257   // (requires supporting early exit).
1258   PostProfileInit();
1259
1260   // Retrieve cached GL strings from local state and use them for GPU
1261   // blacklist decisions.
1262   if (g_browser_process->gl_string_manager())
1263     g_browser_process->gl_string_manager()->Initialize();
1264
1265   // Create an instance of GpuModeManager to watch gpu mode pref change.
1266   g_browser_process->gpu_mode_manager();
1267
1268 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1269   // Show the First Run UI if this is the first time Chrome has been run on
1270   // this computer, or we're being compelled to do so by a command line flag.
1271   // Note that this be done _after_ the PrefService is initialized and all
1272   // preferences are registered, since some of the code that the importer
1273   // touches reads preferences.
1274   if (first_run::IsChromeFirstRun()) {
1275     first_run::AutoImport(profile_,
1276                           master_prefs_->homepage_defined,
1277                           master_prefs_->do_import_items,
1278                           master_prefs_->dont_import_items,
1279                           master_prefs_->import_bookmarks_path);
1280
1281     // Note: this can pop the first run consent dialog on linux.
1282     first_run::DoPostImportTasks(profile_,
1283                                  master_prefs_->make_chrome_default_for_user);
1284
1285     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1286       browser_creator_->set_show_main_browser_window(
1287           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1288     } else {
1289       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1290     }
1291   }
1292 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1293
1294 #if defined(OS_WIN)
1295   // Sets things up so that if we crash from this point on, a dialog will
1296   // popup asking the user to restart chrome. It is done this late to avoid
1297   // testing against a bunch of special cases that are taken care early on.
1298   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1299       parsed_command_line());
1300
1301   // Registers Chrome with the Windows Restart Manager, which will restore the
1302   // Chrome session when the computer is restarted after a system update.
1303   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1304   // but should run on startup if extended to handle crashes/hangs/patches.
1305   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1306   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1307     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1308         parsed_command_line());
1309   }
1310
1311   // Verify that the profile is not on a network share and if so prepare to show
1312   // notification to the user.
1313   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1314     content::BrowserThread::PostTask(content::BrowserThread::FILE, FROM_HERE,
1315         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1316                    profile_->GetPath()));
1317   }
1318 #endif  // OS_WIN
1319
1320 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1321   // Init the RLZ library. This just binds the dll and schedules a task on the
1322   // file thread to be run sometime later. If this is the first run we record
1323   // the installation event.
1324   PrefService* pref_service = profile_->GetPrefs();
1325   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1326       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1327   // Negative ping delay means to send ping immediately after a first search is
1328   // recorded.
1329   RLZTracker::InitRlzFromProfileDelayed(
1330       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1331       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1332 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1333
1334   // Configure modules that need access to resources.
1335   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1336
1337   // In unittest mode, this will do nothing.  In normal mode, this will create
1338   // the global IntranetRedirectDetector instance, which will promptly go to
1339   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1340   // to see if it should do anything else.
1341   //
1342   // A simpler way of doing all this would be to have some function which could
1343   // give the time elapsed since startup, and simply have this object check that
1344   // when asked to initialize itself, but this doesn't seem to exist.
1345   //
1346   // This can't be created in the BrowserProcessImpl constructor because it
1347   // needs to read prefs that get set after that runs.
1348   browser_process_->intranet_redirect_detector();
1349   GoogleSearchCounter::RegisterForNotifications();
1350
1351   if (parsed_command_line().HasSwitch(switches::kEnableSdch)) {
1352     // SDCH options via switches::kEnableSdch include:
1353     const int kSdchDisabled = 0;
1354     const int kSdchOverHttpEnabled = 1;
1355     const int kSdchOverBothHttpAndHttpsEnabled = 2;
1356     int sdch_enabled = kSdchOverHttpEnabled;
1357     if (base::StringToInt(parsed_command_line().GetSwitchValueASCII(
1358             switches::kEnableSdch), &sdch_enabled)) {
1359       if (sdch_enabled == kSdchDisabled) {
1360         net::SdchManager::EnableSdchSupport(false);
1361       } else if (sdch_enabled == kSdchOverBothHttpAndHttpsEnabled) {
1362         net::SdchManager::EnableSecureSchemeSupport(true);
1363       }
1364     }
1365   }
1366
1367   if (parsed_command_line().HasSwitch(switches::kEnableWatchdog))
1368     InstallJankometer(parsed_command_line());
1369
1370 #if defined(OS_WIN) && !defined(GOOGLE_CHROME_BUILD)
1371   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1372     base::FilePath path =
1373         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1374     printing::PrintedDocument::set_debug_dump_path(path);
1375   }
1376 #endif
1377
1378   HandleTestParameters(parsed_command_line());
1379   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1380       base::debug::BeingDebugged());
1381
1382   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1383       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1384   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1385       browser_process_->GetApplicationLocale());
1386
1387   // The extension service may be available at this point. If the command line
1388   // specifies --uninstall-extension, attempt the uninstall extension startup
1389   // action.
1390   if (parsed_command_line().HasSwitch(switches::kUninstallExtension)) {
1391     extensions::StartupHelper extension_startup_helper;
1392     if (extension_startup_helper.UninstallExtension(
1393             parsed_command_line(), profile_))
1394       return content::RESULT_CODE_NORMAL_EXIT;
1395     return chrome::RESULT_CODE_UNINSTALL_EXTENSION_ERROR;
1396   }
1397
1398   // Start watching for hangs during startup. We disarm this hang detector when
1399   // ThreadWatcher takes over or when browser is shutdown or when
1400   // startup_watcher_ is deleted.
1401   MetricsService::SetExecutionPhase(MetricsService::STARTUP_TIMEBOMB_ARM);
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();
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   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1425
1426 #if !defined(DISABLE_NACL)
1427   if (parsed_command_line().HasSwitch(switches::kPnaclDir)) {
1428     PathService::Override(chrome::DIR_PNACL_BASE,
1429                           parsed_command_line().GetSwitchValuePath(
1430                               switches::kPnaclDir));
1431   }
1432
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->StartRepeatedVariationsSeedFetch();
1458 #else
1459   // Most general initialization is behind us, but opening a
1460   // tab and/or session restore and such is still to be done.
1461   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1462
1463   // We are in regular browser boot sequence. Open initial tabs and enter the
1464   // main message loop.
1465   int result_code;
1466 #if defined(OS_CHROMEOS)
1467   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1468   // them this early as the cryptohome hasn't yet been mounted (which happens
1469   // only once we log in.
1470   std::vector<Profile*> last_opened_profiles;
1471 #else
1472   std::vector<Profile*> last_opened_profiles =
1473       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1474 #endif
1475
1476   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1477                               profile_, last_opened_profiles, &result_code)) {
1478 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1479     // Initialize autoupdate timer. Timer callback costs basically nothing
1480     // when browser is not in persistent mode, so it's OK to let it ride on
1481     // the main thread. This needs to be done here because we don't want
1482     // to start the timer when Chrome is run inside a test harness.
1483     browser_process_->StartAutoupdateTimer();
1484 #endif
1485
1486 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1487     // On Linux, the running exe will be updated if an upgrade becomes
1488     // available while the browser is running.  We need to save the last
1489     // modified time of the exe, so we can compare to determine if there is
1490     // an upgrade while the browser is kept alive by a persistent extension.
1491     upgrade_util::SaveLastModifiedTimeOfExe();
1492 #endif
1493
1494     // Record now as the last successful chrome start.
1495     GoogleUpdateSettings::SetLastRunTime();
1496
1497 #if defined(OS_MACOSX)
1498     // Call Recycle() here as late as possible, before going into the loop
1499     // because Start() will add things to it while creating the main window.
1500     if (parameters().autorelease_pool)
1501       parameters().autorelease_pool->Recycle();
1502 #endif
1503
1504     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1505     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1506
1507     // If we're running tests (ui_task is non-null), then we don't want to
1508     // call FetchLanguageListFromTranslateServer or
1509     // StartRepeatedVariationsSeedFetch.
1510     if (parameters().ui_task == NULL) {
1511       // Request new variations seed information from server.
1512       chrome_variations::VariationsService* variations_service =
1513           browser_process_->variations_service();
1514       if (variations_service) {
1515         variations_service->StartRepeatedVariationsSeedFetch();
1516
1517 #if defined(OS_WIN)
1518         variations_service->StartGoogleUpdateRegistrySync();
1519 #endif
1520       }
1521
1522       if (translate_manager_ != NULL) {
1523         translate_manager_->FetchLanguageListFromTranslateServer(
1524             profile_->GetPrefs());
1525       }
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   if (parameters().ui_task) {
1540     // We end the startup timer here if we have parameters to run, because we
1541     // never start to run the main loop (where we normally stop the timer).
1542     startup_timer_->SignalStartupComplete(
1543         performance_monitor::StartupTimer::STARTUP_TEST);
1544     parameters().ui_task->Run();
1545     delete parameters().ui_task;
1546     run_message_loop_ = false;
1547   }
1548 #if defined(OS_ANDROID)
1549   // We never run the C++ main loop on Android, since the UI thread message
1550   // loop is controlled by the OS, so this is as close as we can get to
1551   // the start of the main loop
1552   if (result_code_ <= 0) {
1553     RecordBrowserStartupTime();
1554   }
1555 #endif
1556   return result_code_;
1557 }
1558
1559 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1560   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1561 #if defined(OS_ANDROID)
1562   // Chrome on Android does not use default MessageLoop. It has its own
1563   // Android specific MessageLoop
1564   NOTREACHED();
1565   return true;
1566 #else
1567   // Set the result code set in PreMainMessageLoopRun or set above.
1568   *result_code = result_code_;
1569   if (!run_message_loop_)
1570     return true;  // Don't run the default message loop.
1571
1572   // These should be invoked as close to the start of the browser's
1573   // UI thread message loop as possible to get a stable measurement
1574   // across versions.
1575   RecordBrowserStartupTime();
1576   startup_timer_->SignalStartupComplete(
1577       performance_monitor::StartupTimer::STARTUP_NORMAL);
1578
1579   DCHECK(base::MessageLoopForUI::IsCurrent());
1580 #if !defined(USE_AURA) && defined(TOOLKIT_VIEWS)
1581   views::AcceleratorHandler accelerator_handler;
1582   base::RunLoop run_loop(&accelerator_handler);
1583 #else
1584   base::RunLoop run_loop;
1585 #endif
1586
1587   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1588
1589   MetricsService::SetExecutionPhase(MetricsService::MAIN_MESSAGE_LOOP_RUN);
1590   run_loop.Run();
1591
1592   return true;
1593 #endif
1594 }
1595
1596 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1597   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1598 #if defined(OS_ANDROID)
1599   // Chrome on Android does not use default MessageLoop. It has its own
1600   // Android specific MessageLoop
1601   NOTREACHED();
1602 #else
1603
1604   // Start watching for jank during shutdown. It gets disarmed when
1605   // |shutdown_watcher_| object is destructed.
1606   MetricsService::SetExecutionPhase(MetricsService::SHUTDOWN_TIMEBOMB_ARM);
1607   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1608
1609   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1610   startup_watcher_->Disarm();
1611
1612   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1613     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1614
1615   // Some tests don't set parameters.ui_task, so they started translate
1616   // language fetch that was never completed so we need to cleanup here
1617   // otherwise it will be done by the destructor in a wrong thread.
1618   if (parameters().ui_task == NULL && translate_manager_ != NULL)
1619     translate_manager_->CleanupPendingUlrFetcher();
1620
1621   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1622     process_singleton_->Cleanup();
1623
1624   // Stop all tasks that might run on WatchDogThread.
1625   ThreadWatcherList::StopWatchingAll();
1626
1627   browser_process_->metrics_service()->Stop();
1628
1629   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1630   browser_process_->StartTearDown();
1631 #endif
1632 }
1633
1634 void ChromeBrowserMainParts::PostDestroyThreads() {
1635 #if defined(OS_ANDROID)
1636   // On Android, there is no quit/exit. So the browser's main message loop will
1637   // not finish.
1638   NOTREACHED();
1639 #else
1640   browser_process_->PostDestroyThreads();
1641   // browser_shutdown takes care of deleting browser_process, so we need to
1642   // release it.
1643   ignore_result(browser_process_.release());
1644   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1645   master_prefs_.reset();
1646   process_singleton_.reset();
1647
1648   // We need to do this check as late as possible, but due to modularity, this
1649   // may be the last point in Chrome.  This would be more effective if done at
1650   // a higher level on the stack, so that it is impossible for an early return
1651   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1652   // paths from content/browser/browser_main.
1653   CHECK(MetricsService::UmaMetricsProperlyShutdown());
1654
1655 #if defined(OS_CHROMEOS)
1656   chromeos::CrosSettings::Shutdown();
1657 #endif
1658 #endif
1659 }
1660
1661 // Public members:
1662
1663 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1664   chrome_extra_parts_.push_back(parts);
1665 }