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