chrome/browser/chrome_browser_main.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_browser_main.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/at_exit.h"
  12 #include "base/bind.h"
  13 #include "base/command_line.h"
  14 #include "base/debug/crash_logging.h"
  15 #include "base/debug/debugger.h"
  16 #include "base/debug/trace_event.h"
  17 #include "base/files/file_path.h"
  18 #include "base/files/file_util.h"
  19 #include "base/metrics/field_trial.h"
  20 #include "base/metrics/histogram.h"
  21 #include "base/path_service.h"
  22 #include "base/prefs/json_pref_store.h"
  23 #include "base/prefs/pref_registry_simple.h"
  24 #include "base/prefs/pref_service.h"
  25 #include "base/prefs/pref_value_store.h"
  26 #include "base/prefs/scoped_user_pref_update.h"
  27 #include "base/process/process_info.h"
  28 #include "base/run_loop.h"
  29 #include "base/strings/string_number_conversions.h"
  30 #include "base/strings/string_piece.h"
  31 #include "base/strings/string_split.h"
  32 #include "base/strings/sys_string_conversions.h"
  33 #include "base/strings/utf_string_conversions.h"
  34 #include "base/sys_info.h"
  35 #include "base/threading/platform_thread.h"
  36 #include "base/time/time.h"
  37 #include "base/values.h"
  38 #include "build/build_config.h"
  39 #include "chrome/browser/about_flags.h"
  40 #include "chrome/browser/browser_process.h"
  41 #include "chrome/browser/browser_process_impl.h"
  42 #include "chrome/browser/browser_process_platform_part.h"
  43 #include "chrome/browser/browser_shutdown.h"
  44 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  45 #include "chrome/browser/component_updater/cld_component_installer.h"
  46 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  47 #include "chrome/browser/component_updater/flash_component_installer.h"
  48 #include "chrome/browser/component_updater/recovery_component_installer.h"
  49 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  50 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  51 #include "chrome/browser/defaults.h"
  52 #include "chrome/browser/extensions/extension_service.h"
  53 #include "chrome/browser/extensions/startup_helper.h"
  54 #include "chrome/browser/first_run/first_run.h"
  55 #include "chrome/browser/first_run/upgrade_util.h"
  56 #include "chrome/browser/google/google_search_counter.h"
  57 #include "chrome/browser/gpu/gl_string_manager.h"
  58 #include "chrome/browser/gpu/three_d_api_observer.h"
  59 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  60 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  61 #include "chrome/browser/metrics/thread_watcher.h"
  62 #include "chrome/browser/metrics/tracking_synchronizer.h"
  63 #include "chrome/browser/metrics/variations/variations_service.h"
  64 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  65 #include "chrome/browser/net/chrome_net_log.h"
  66 #include "chrome/browser/net/crl_set_fetcher.h"
  67 #include "chrome/browser/notifications/desktop_notification_service.h"
  68 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  69 #include "chrome/browser/performance_monitor/performance_monitor.h"
  70 #include "chrome/browser/performance_monitor/startup_timer.h"
  71 #include "chrome/browser/plugins/plugin_prefs.h"
  72 #include "chrome/browser/power/process_power_collector.h"
  73 #include "chrome/browser/pref_service_flags_storage.h"
  74 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  75 #include "chrome/browser/prefs/command_line_pref_store.h"
  76 #include "chrome/browser/prefs/pref_metrics_service.h"
  77 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  78 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  79 #include "chrome/browser/process_singleton.h"
  80 #include "chrome/browser/profiles/profile.h"
  81 #include "chrome/browser/profiles/profile_manager.h"
  82 #include "chrome/browser/profiles/profiles_state.h"
  83 #include "chrome/browser/shell_integration.h"
  84 #include "chrome/browser/translate/translate_service.h"
  85 #include "chrome/browser/ui/app_list/app_list_service.h"
  86 #include "chrome/browser/ui/browser.h"
  87 #include "chrome/browser/ui/browser_finder.h"
  88 #include "chrome/browser/ui/host_desktop.h"
  89 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  90 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  91 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  92 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  93 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  94 #include "chrome/common/chrome_constants.h"
  95 #include "chrome/common/chrome_paths.h"
  96 #include "chrome/common/chrome_result_codes.h"
  97 #include "chrome/common/chrome_switches.h"
  98 #include "chrome/common/crash_keys.h"
  99 #include "chrome/common/env_vars.h"
 100 #include "chrome/common/logging_chrome.h"
 101 #include "chrome/common/net/net_resource_provider.h"
 102 #include "chrome/common/pref_names.h"
 103 #include "chrome/common/profiling.h"
 104 #include "chrome/grit/generated_resources.h"
 105 #include "chrome/installer/util/google_update_settings.h"
 106 #include "components/component_updater/component_updater_service.h"
 107 #include "components/google/core/browser/google_util.h"
 108 #include "components/language_usage_metrics/language_usage_metrics.h"
 109 #include "components/metrics/metrics_service.h"
 110 #include "components/nacl/browser/nacl_browser.h"
 111 #include "components/rappor/rappor_service.h"
 112 #include "components/signin/core/common/profile_management_switches.h"
 113 #include "components/startup_metric_utils/startup_metric_utils.h"
 114 #include "components/translate/content/common/cld_data_source.h"
 115 #include "components/translate/core/browser/translate_download_manager.h"
 116 #include "components/variations/variations_http_header_provider.h"
 117 #include "content/public/browser/browser_thread.h"
 118 #include "content/public/browser/notification_observer.h"
 119 #include "content/public/browser/notification_registrar.h"
 120 #include "content/public/browser/notification_service.h"
 121 #include "content/public/browser/notification_types.h"
 122 #include "content/public/browser/site_instance.h"
 123 #include "content/public/common/content_client.h"
 124 #include "content/public/common/content_switches.h"
 125 #include "content/public/common/main_function_params.h"
 126 #include "extensions/browser/extension_protocols.h"
 127 #include "grit/browser_resources.h"
 128 #include "grit/platform_locale_settings.h"
 129 #include "net/base/net_module.h"
 130 #include "net/base/sdch_manager.h"
 131 #include "net/cookies/cookie_monster.h"
 132 #include "net/http/http_network_layer.h"
 133 #include "net/http/http_stream_factory.h"
 134 #include "net/url_request/url_request.h"
 135 #include "ui/base/l10n/l10n_util.h"
 136 #include "ui/base/layout.h"
 137 #include "ui/base/resource/resource_bundle.h"
 138
 139 #if defined(OS_ANDROID)
 140 #include "chrome/browser/metrics/thread_watcher_android.h"
 141 #else
 142 #include "chrome/browser/feedback/feedback_profile_observer.h"
 143 #endif
 144
 145 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 146 #include "chrome/browser/first_run/upgrade_util_linux.h"
 147 #include "chrome/browser/sxs_linux.h"
 148 #endif
 149
 150 #if defined(OS_CHROMEOS)
 151 #include "chrome/browser/chromeos/settings/cros_settings.h"
 152 #include "chromeos/chromeos_switches.h"
 153 #include "chromeos/settings/cros_settings_names.h"
 154 #endif
 155
 156 // TODO(port): several win-only methods have been pulled out of this, but
 157 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 158 // other platforms. For now, it's just a stub. This is a serious work in
 159 // progress and should not be taken as an indication of a real refactoring.
 160
 161 #if defined(OS_WIN)
 162 #include "base/environment.h"  // For PreRead experiment.
 163 #include "base/win/windows_version.h"
 164 #include "chrome/browser/browser_util_win.h"
 165 #include "chrome/browser/chrome_browser_main_win.h"
 166 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 167 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 168 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 169 #include "chrome/browser/first_run/upgrade_util_win.h"
 170 #include "chrome/browser/ui/network_profile_bubble.h"
 171 #include "chrome/installer/util/helper.h"
 172 #include "chrome/installer/util/install_util.h"
 173 #include "chrome/installer/util/shell_util.h"
 174 #include "net/base/net_util.h"
 175 #include "ui/base/l10n/l10n_util_win.h"
 176 #include "ui/gfx/win/dpi.h"
 177 #include "ui/shell_dialogs/select_file_dialog.h"
 178 #endif  // defined(OS_WIN)
 179
 180 #if defined(OS_MACOSX)
 181 #include <Security/Security.h>
 182
 183 #include "base/mac/scoped_nsautorelease_pool.h"
 184 #include "chrome/browser/mac/keystone_glue.h"
 185 #endif
 186
 187 #if !defined(DISABLE_NACL)
 188 #include "chrome/browser/component_updater/pnacl/pnacl_component_installer.h"
 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 #if !defined(DISABLE_NACL)
 398   g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 399 #endif
 400 #endif
 401
 402   if (translate::CldDataSource::ShouldRegisterForComponentUpdates()) {
 403     RegisterCldComponent(cus);
 404   }
 405
 406   base::FilePath path;
 407   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 408 #if defined(OS_ANDROID)
 409     // The CRLSet component was enabled for some releases. This code attempts to
 410     // delete it from the local disk of those how may have downloaded it.
 411     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 412 #elif !defined(OS_CHROMEOS)
 413     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 414     // network.
 415     // For Chrome OS this registration is delayed until user login.
 416     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 417 #endif
 418   }
 419
 420 #if !defined(OS_ANDROID)
 421   // Android does not currently have the EV indicator. No need to get the
 422   // EV certs whitelist on Android, then.
 423   RegisterEVWhitelistComponent(cus);
 424 #endif
 425
 426 #if defined(OS_WIN)
 427   ExecutePendingSwReporter(cus, g_browser_process->local_state());
 428 #endif
 429
 430   cus->Start();
 431 }
 432
 433 #if !defined(OS_ANDROID)
 434 bool ProcessSingletonNotificationCallback(
 435     const CommandLine& command_line,
 436     const base::FilePath& current_directory) {
 437   // Drop the request if the browser process is already in shutdown path.
 438   if (!g_browser_process || g_browser_process->IsShuttingDown())
 439     return false;
 440
 441   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 442     std::string start_time_string =
 443         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 444     int64 remote_start_time;
 445     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 446       base::TimeDelta elapsed =
 447           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 448       if (command_line.HasSwitch(switches::kFastStart)) {
 449         UMA_HISTOGRAM_LONG_TIMES(
 450             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 451       } else {
 452         UMA_HISTOGRAM_LONG_TIMES(
 453             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 454       }
 455     }
 456   }
 457
 458   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 459       command_line);
 460
 461   base::FilePath user_data_dir =
 462       g_browser_process->profile_manager()->user_data_dir();
 463   base::FilePath startup_profile_dir =
 464       GetStartupProfilePath(user_data_dir, command_line);
 465
 466   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 467       command_line, current_directory, startup_profile_dir);
 468   return true;
 469 }
 470 #endif  // !defined(OS_ANDROID)
 471
 472 void LaunchDevToolsHandlerIfNeeded(const CommandLine& command_line) {
 473   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 474     std::string port_str =
 475         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 476     int port;
 477     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 478       g_browser_process->CreateDevToolsHttpProtocolHandler(
 479           chrome::HOST_DESKTOP_TYPE_NATIVE,
 480           "127.0.0.1",
 481           port);
 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
 517 // This error message is not localized because we failed to load the
 518 // localization data files.
 519 #if defined(OS_WIN)
 520 const char kMissingLocaleDataTitle[] = "Missing File Error";
 521 #endif
 522
 523 #if defined(OS_WIN)
 524 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 525 const char kMissingLocaleDataMessage[] =
 526     "Unable to find locale data files. Please reinstall.";
 527 #endif
 528
 529 }  // namespace chrome_browser
 530
 531 // BrowserMainParts ------------------------------------------------------------
 532
 533 // static
 534 bool ChromeBrowserMainParts::disable_enforcing_cookie_policies_for_tests_ =
 535     false;
 536
 537 ChromeBrowserMainParts::ChromeBrowserMainParts(
 538     const content::MainFunctionParams& parameters)
 539     : parameters_(parameters),
 540       parsed_command_line_(parameters.command_line),
 541       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 542       startup_watcher_(new StartupTimeBomb()),
 543       shutdown_watcher_(new ShutdownWatcherHelper()),
 544       startup_timer_(new performance_monitor::StartupTimer()),
 545       browser_field_trials_(parameters.command_line),
 546       profile_(NULL),
 547       run_message_loop_(true),
 548       notify_result_(ProcessSingleton::PROCESS_NONE),
 549       local_state_(NULL),
 550       restart_last_session_(false) {
 551   // If we're running tests (ui_task is non-null).
 552   if (parameters.ui_task)
 553     browser_defaults::enable_help_app = false;
 554
 555   // Chrome disallows cookies by default. All code paths that want to use
 556   // cookies need to go through one of Chrome's URLRequestContexts which have
 557   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 558   if (!disable_enforcing_cookie_policies_for_tests_)
 559     net::URLRequest::SetDefaultCookiePolicyToBlock();
 560 }
 561
 562 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 563   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 564     delete chrome_extra_parts_[i];
 565   chrome_extra_parts_.clear();
 566 }
 567
 568 // This will be called after the command-line has been mutated by about:flags
 569 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 570   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 571   // Must initialize metrics after labs have been converted into switches,
 572   // but before field trials are set up (so that client ID is available for
 573   // one-time randomized field trials).
 574
 575   // Initialize FieldTrialList to support FieldTrials that use one-time
 576   // randomization.
 577   metrics::MetricsService* metrics = browser_process_->metrics_service();
 578   field_trial_list_.reset(
 579       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 580
 581   const CommandLine* command_line = CommandLine::ForCurrentProcess();
 582   if (command_line->HasSwitch(switches::kEnableBenchmarking))
 583     base::FieldTrial::EnableBenchmarking();
 584
 585   // Ensure any field trials specified on the command line are initialized.
 586   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 587     std::set<std::string> unforceable_field_trials;
 588 #if defined(OFFICIAL_BUILD)
 589     unforceable_field_trials.insert("SettingsEnforcement");
 590 #endif  // defined(OFFICIAL_BUILD)
 591
 592     // Create field trials without activating them, so that this behaves in a
 593     // consistent manner with field trials created from the server.
 594     bool result = base::FieldTrialList::CreateTrialsFromString(
 595         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 596         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 597         unforceable_field_trials);
 598     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 599                   << " list specified.";
 600   }
 601   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 602     // Create default variation ids which will always be included in the
 603     // X-Client-Data request header.
 604     variations::VariationsHttpHeaderProvider* provider =
 605         variations::VariationsHttpHeaderProvider::GetInstance();
 606     bool result = provider->SetDefaultVariationIds(
 607         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 608     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 609                   << " list specified.";
 610   }
 611   chrome_variations::VariationsService* variations_service =
 612       browser_process_->variations_service();
 613   if (variations_service)
 614     variations_service->CreateTrialsFromSeed();
 615
 616   // This must be called after |local_state_| is initialized.
 617   browser_field_trials_.SetupFieldTrials(
 618       base::Time::FromTimeT(metrics->GetInstallDate()), local_state_);
 619
 620   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 621   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 622   // Even though base::Bind does AddRef and Release, the object will not be
 623   // deleted after the Task is executed.
 624   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 625
 626   // Now that field trials have been created, initializes metrics recording.
 627   metrics->InitializeMetricsRecordingState();
 628 }
 629
 630 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 631
 632 void ChromeBrowserMainParts::StartMetricsRecording() {
 633   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 634   metrics::MetricsService* metrics = g_browser_process->metrics_service();
 635
 636   const bool only_do_metrics_recording =
 637       parsed_command_line_.HasSwitch(switches::kMetricsRecordingOnly) ||
 638       parsed_command_line_.HasSwitch(switches::kEnableBenchmarking);
 639   if (only_do_metrics_recording) {
 640     // If we're testing then we don't care what the user preference is, we turn
 641     // on recording, but not reporting, otherwise tests fail.
 642     metrics->StartRecordingForTests();
 643     return;
 644   }
 645
 646   metrics->CheckForClonedInstall(
 647       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 648   const bool metrics_enabled = metrics->StartIfMetricsReportingEnabled();
 649   // TODO(asvitkine): Since this function is not run on Android, RAPPOR is
 650   // currently disabled there. http://crbug.com/370041
 651   browser_process_->rappor_service()->Start(
 652       browser_process_->local_state(),
 653       browser_process_->system_request_context(),
 654       metrics_enabled);
 655 }
 656
 657 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 658   // Don't record any metrics if UI was displayed before this point e.g.
 659   // warning dialogs.
 660   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 661     return;
 662
 663 #if defined(OS_ANDROID)
 664   // On Android the first run is handled in Java code, and the C++ side of
 665   // Chrome doesn't know if this is the first run. This will cause some
 666   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 667   // rare).
 668   bool is_first_run = false;
 669 #else
 670   bool is_first_run = first_run::IsChromeFirstRun();
 671 #endif
 672
 673 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 674 // platforms.
 675 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 676   const base::Time process_creation_time =
 677       base::CurrentProcessInfo::CreationTime();
 678
 679   if (!is_first_run && !process_creation_time.is_null()) {
 680     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 681     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 682   }
 683 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 684
 685   // Record collected startup metrics.
 686   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 687
 688   // Deletes self.
 689   new LoadCompleteListener();
 690 }
 691
 692 // -----------------------------------------------------------------------------
 693 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 694
 695 #if defined(OS_WIN)
 696 #define DLLEXPORT __declspec(dllexport)
 697
 698 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 699 extern "C" {
 700 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 701 }
 702
 703 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 704   // Need an instance of AtExitManager to handle singleton creations and
 705   // deletions.  We need this new instance because, the old instance created
 706   // in ChromeMain() got destructed when the function returned.
 707   base::AtExitManager exit_manager;
 708   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 709 }
 710 #endif
 711
 712 // content::BrowserMainParts implementation ------------------------------------
 713
 714 void ChromeBrowserMainParts::PreEarlyInitialization() {
 715   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 716   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 717     chrome_extra_parts_[i]->PreEarlyInitialization();
 718 }
 719
 720 void ChromeBrowserMainParts::PostEarlyInitialization() {
 721   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 722   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 723     chrome_extra_parts_[i]->PostEarlyInitialization();
 724 }
 725
 726 void ChromeBrowserMainParts::ToolkitInitialized() {
 727   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 728   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 729     chrome_extra_parts_[i]->ToolkitInitialized();
 730 }
 731
 732 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 733   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 734   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 735     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 736 }
 737
 738 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 739   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 740   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 741     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 742 }
 743
 744 int ChromeBrowserMainParts::PreCreateThreads() {
 745   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 746   result_code_ = PreCreateThreadsImpl();
 747
 748   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 749 #if !defined(OS_ANDROID)
 750     // These members must be initialized before exiting this function normally.
 751     DCHECK(master_prefs_.get());
 752     DCHECK(browser_creator_.get());
 753 #endif
 754     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 755       chrome_extra_parts_[i]->PreCreateThreads();
 756   }
 757
 758   return result_code_;
 759 }
 760
 761 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 762   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 763   run_message_loop_ = false;
 764 #if !defined(OS_ANDROID)
 765   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 766 #endif
 767   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 768     return chrome::RESULT_CODE_MISSING_DATA;
 769
 770   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 771   MediaCaptureDevicesDispatcher::GetInstance();
 772
 773   // Android's first run is done in Java instead of native.
 774 #if !defined(OS_ANDROID)
 775   process_singleton_.reset(new ChromeProcessSingleton(
 776       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 777
 778   // Cache first run state early.
 779   first_run::IsChromeFirstRun();
 780 #endif
 781
 782   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 783       JsonPrefStore::GetTaskRunnerForFile(
 784           base::FilePath(chrome::kLocalStorePoolName),
 785           BrowserThread::GetBlockingPool());
 786
 787   {
 788     TRACE_EVENT0("startup",
 789       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 790     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 791                                                   parsed_command_line()));
 792   }
 793
 794   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 795     TRACE_EVENT0("startup",
 796         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 797     // User wants to override default tracking status.
 798     std::string flag =
 799       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 800     // Default to basic profiling (no parent child support).
 801     tracked_objects::ThreadData::Status status =
 802           tracked_objects::ThreadData::PROFILING_ACTIVE;
 803     if (flag.compare("0") != 0)
 804       status = tracked_objects::ThreadData::DEACTIVATED;
 805     else if (flag.compare("child") != 0)
 806       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 807     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 808   }
 809
 810   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 811     tracking_objects_.set_output_file_path(
 812         parsed_command_line().GetSwitchValuePath(
 813             switches::kProfilingOutputFile));
 814   }
 815
 816   local_state_ = InitializeLocalState(
 817       local_state_task_runner.get(), parsed_command_line());
 818
 819 #if !defined(OS_ANDROID)
 820   // These members must be initialized before returning from this function.
 821   master_prefs_.reset(new first_run::MasterPrefs);
 822   // Android doesn't use StartupBrowserCreator.
 823   browser_creator_.reset(new StartupBrowserCreator);
 824   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 825   chrome::UMABrowsingActivityObserver::Init();
 826 #endif
 827
 828 #if !defined(OS_CHROMEOS)
 829   // Convert active labs into switches. This needs to be done before
 830   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 831   // affected by experiment flags (--touch-optimized-ui in particular).
 832   // On ChromeOS system level flags are applied from the device settings from
 833   // the session manager.
 834   {
 835     TRACE_EVENT0("startup",
 836         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 837     about_flags::PrefServiceFlagsStorage flags_storage_(
 838         g_browser_process->local_state());
 839     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 840                                         CommandLine::ForCurrentProcess(),
 841                                         about_flags::kAddSentinels);
 842   }
 843 #endif
 844
 845   local_state_->UpdateCommandLinePrefStore(
 846       new CommandLinePrefStore(CommandLine::ForCurrentProcess()));
 847
 848   // Reset the command line in the crash report details, since we may have
 849   // just changed it to include experiments.
 850   crash_keys::SetSwitchesFromCommandLine(CommandLine::ForCurrentProcess());
 851
 852   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 853   // needed when loading the MainMenu.nib and the language doesn't depend on
 854   // anything since it comes from Cocoa.
 855 #if defined(OS_MACOSX)
 856   std::string locale =
 857       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 858   browser_process_->SetApplicationLocale(locale);
 859 #else
 860   const std::string locale =
 861       local_state_->GetString(prefs::kApplicationLocale);
 862
 863   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 864   // method InitSharedInstance is ignored.
 865
 866   TRACE_EVENT_BEGIN0("startup",
 867       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 868   const std::string loaded_locale =
 869       ui::ResourceBundle::InitSharedInstanceWithLocale(
 870           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 871   TRACE_EVENT_END0("startup",
 872       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 873
 874   if (loaded_locale.empty() &&
 875       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 876     ShowMissingLocaleMessageBox();
 877     return chrome::RESULT_CODE_MISSING_DATA;
 878   }
 879   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 880   browser_process_->SetApplicationLocale(loaded_locale);
 881
 882   base::FilePath resources_pack_path;
 883   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 884   {
 885     TRACE_EVENT0("startup",
 886         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 887     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 888         resources_pack_path, ui::SCALE_FACTOR_NONE);
 889   }
 890 #endif  // defined(OS_MACOSX)
 891
 892   // Android does first run in Java instead of native.
 893   // Chrome OS has its own out-of-box-experience code.
 894 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 895   // On first run, we need to process the predictor preferences before the
 896   // browser's profile_manager object is created, but after ResourceBundle
 897   // is initialized.
 898   if (first_run::IsChromeFirstRun()) {
 899     first_run::ProcessMasterPreferencesResult pmp_result =
 900         first_run::ProcessMasterPreferences(user_data_dir_,
 901                                             master_prefs_.get());
 902     if (pmp_result == first_run::EULA_EXIT_NOW)
 903       return chrome::RESULT_CODE_EULA_REFUSED;
 904
 905     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 906         !parsed_command_line().HasSwitch(switches::kAppId) &&
 907         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 908       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 909     }
 910
 911     // TODO(macourteau): refactor preferences that are copied from
 912     // master_preferences into local_state, as a "local_state" section in
 913     // master preferences. If possible, a generic solution would be preferred
 914     // over a copy one-by-one of specific preferences. Also see related TODO
 915     // in first_run.h.
 916
 917     // Store the initial VariationsService seed in local state, if it exists
 918     // in master prefs.
 919     if (!master_prefs_->variations_seed.empty()) {
 920       local_state_->SetString(prefs::kVariationsSeed,
 921                               master_prefs_->variations_seed);
 922       if (!master_prefs_->variations_seed_signature.empty()) {
 923         local_state_->SetString(prefs::kVariationsSeedSignature,
 924                                 master_prefs_->variations_seed_signature);
 925       }
 926       // Set the variation seed date to the current system time. If the user's
 927       // clock is incorrect, this may cause some field trial expiry checks to
 928       // not do the right thing until the next seed update from the server,
 929       // when this value will be updated.
 930       local_state_->SetInt64(prefs::kVariationsSeedDate,
 931                              base::Time::Now().ToInternalValue());
 932     }
 933
 934     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 935       local_state_->SetString(
 936           prefs::kBrowserSuppressDefaultBrowserPrompt,
 937           master_prefs_->suppress_default_browser_prompt_for_version);
 938     }
 939
 940     AppListService::Get(chrome::HOST_DESKTOP_TYPE_NATIVE)->HandleFirstRun();
 941   }
 942 #endif
 943
 944 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 945   // Set the product channel for crash reports.
 946   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 947       chrome::VersionInfo::GetVersionStringModifier());
 948 #endif
 949
 950   // Initialize tracking synchronizer system.
 951   tracking_synchronizer_ = new chrome_browser_metrics::TrackingSynchronizer();
 952
 953 #if defined(OS_MACOSX)
 954   // Get the Keychain API to register for distributed notifications on the main
 955   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 956   // which doesn't. This ensures those notifications will get delivered
 957   // properly. See issue 37766.
 958   // (Note that the callback mask here is empty. I don't want to register for
 959   // any callbacks, I just want to initialize the mechanism.)
 960   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 961 #endif
 962
 963 #if defined(OS_CHROMEOS)
 964   // Must be done after g_browser_process is constructed, before
 965   // SetupMetricsAndFieldTrials().
 966   chromeos::CrosSettings::Initialize();
 967 #endif
 968
 969   // Now the command line has been mutated based on about:flags, we can setup
 970   // metrics and initialize field trials. The field trials are needed by
 971   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
 972   SetupMetricsAndFieldTrials();
 973
 974   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
 975   browser_process_->PreCreateThreads();
 976
 977   return content::RESULT_CODE_NORMAL_EXIT;
 978 }
 979
 980 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
 981   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
 982   result_code_ = PreMainMessageLoopRunImpl();
 983
 984   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 985     chrome_extra_parts_[i]->PreMainMessageLoopRun();
 986 }
 987
 988 // PreMainMessageLoopRun calls these extra stages in the following order:
 989 //  PreMainMessageLoopRunImpl()
 990 //   ... initial setup, including browser_process_ setup.
 991 //   PreProfileInit()
 992 //   ... additional setup, including CreateProfile()
 993 //   PostProfileInit()
 994 //   ... additional setup
 995 //   PreBrowserStart()
 996 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
 997 //   PostBrowserStart()
 998
 999 void ChromeBrowserMainParts::PreProfileInit() {
1000   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1001
1002   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1003     chrome_extra_parts_[i]->PreProfileInit();
1004
1005 #if !defined(OS_ANDROID)
1006   // Initialize the feedback uploader so it can setup notifications for profile
1007   // creation.
1008   feedback::FeedbackProfileObserver::Initialize();
1009
1010   ProfileManager* profile_manager = g_browser_process->profile_manager();
1011
1012   // First check if any ephemeral profiles are left behind because of browser
1013   // crash and schedule them for deletion and then proceed with getting the set
1014   // of profiles to open.
1015   ProfileInfoCache& profile_cache = profile_manager->GetProfileInfoCache();
1016   size_t profiles_count = profile_cache.GetNumberOfProfiles();
1017   std::vector<base::FilePath> profiles_to_delete;
1018   for (size_t i = 0; i < profiles_count; ++i) {
1019     if (profile_cache.ProfileIsEphemeralAtIndex(i))
1020       profiles_to_delete.push_back(profile_cache.GetPathOfProfileAtIndex(i));
1021   }
1022
1023   if (profiles_to_delete.size()) {
1024     for (size_t i = 0; i < profiles_to_delete.size(); ++i) {
1025       profile_manager->ScheduleProfileForDeletion(
1026           profiles_to_delete[i], ProfileManager::CreateCallback());
1027     }
1028     // Clean up stale profiles immediately after browser start.
1029     BrowserThread::PostTask(
1030         BrowserThread::FILE, FROM_HERE,
1031         base::Bind(&ProfileManager::CleanUpStaleProfiles, profiles_to_delete));
1032   }
1033 #endif  // OS_ANDROID
1034 }
1035
1036 void ChromeBrowserMainParts::PostProfileInit() {
1037   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1038   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1039   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1040     chrome_extra_parts_[i]->PostProfileInit();
1041 }
1042
1043 void ChromeBrowserMainParts::PreBrowserStart() {
1044   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1045   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1046     chrome_extra_parts_[i]->PreBrowserStart();
1047
1048   three_d_observer_.reset(new ThreeDAPIObserver());
1049 }
1050
1051 void ChromeBrowserMainParts::PostBrowserStart() {
1052   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1053   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1054     chrome_extra_parts_[i]->PostBrowserStart();
1055 #if !defined(OS_ANDROID)
1056   // Allow ProcessSingleton to process messages.
1057   process_singleton_->Unlock();
1058 #endif
1059 #if defined(ENABLE_WEBRTC)
1060   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1061   // to reduce the impact on startup time.
1062   BrowserThread::PostDelayedTask(
1063       BrowserThread::UI,
1064       FROM_HERE,
1065       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1066       base::TimeDelta::FromMinutes(1));
1067 #endif
1068 }
1069
1070 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1071   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1072   // Android updates the metrics service dynamically depending on whether the
1073   // application is in the foreground or not. Do not start here.
1074 #if !defined(OS_ANDROID)
1075   // Now that the file thread has been started, start recording.
1076   StartMetricsRecording();
1077 #endif
1078
1079   // Create watchdog thread after creating all other threads because it will
1080   // watch the other threads and they must be running.
1081   browser_process_->watchdog_thread();
1082
1083   // Do any initializating in the browser process that requires all threads
1084   // running.
1085   browser_process_->PreMainMessageLoopRun();
1086
1087   // Record last shutdown time into a histogram.
1088   browser_shutdown::ReadLastShutdownInfo();
1089
1090 #if defined(OS_WIN)
1091   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1092   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1093   // upgrade/uninstall happen separately.
1094   bool already_running = browser_util::IsBrowserAlreadyRunning();
1095
1096   // If the command line specifies 'uninstall' then we need to work here
1097   // unless we detect another chrome browser running.
1098   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1099     return DoUninstallTasks(already_running);
1100   }
1101
1102   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1103       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1104     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1105         parsed_command_line_);
1106   }
1107
1108   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1109       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1110 #endif
1111
1112   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1113     return ShellIntegration::SetAsDefaultBrowser() ?
1114         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1115         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1116   }
1117
1118 #if defined(USE_AURA)
1119   // Make sure aura::Env has been initialized.
1120   CHECK(aura::Env::GetInstance());
1121 #endif
1122
1123   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1124 #if !defined(OS_ANDROID)
1125   // If the command line specifies --pack-extension, attempt the pack extension
1126   // startup action and exit.
1127   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1128     extensions::StartupHelper extension_startup_helper;
1129     if (extension_startup_helper.PackExtension(parsed_command_line()))
1130       return content::RESULT_CODE_NORMAL_EXIT;
1131     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1132   }
1133
1134   // If we're being launched just to check the connector policy, we are
1135   // short-lived and don't want to be passing that switch off.
1136   bool pass_command_line = !parsed_command_line().HasSwitch(
1137       switches::kCheckCloudPrintConnectorPolicy);
1138
1139   if (pass_command_line) {
1140     // When another process is running, use that process instead of starting a
1141     // new one. NotifyOtherProcess will currently give the other process up to
1142     // 20 seconds to respond. Note that this needs to be done before we attempt
1143     // to read the profile.
1144     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1145     switch (notify_result_) {
1146       case ProcessSingleton::PROCESS_NONE:
1147         // No process already running, fall through to starting a new one.
1148         break;
1149
1150       case ProcessSingleton::PROCESS_NOTIFIED:
1151 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1152         printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1153             l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1154 #endif
1155         // Having a differentiated return type for testing allows for tests to
1156         // verify proper handling of some switches. When not testing, stick to
1157         // the standard Unix convention of returning zero when things went as
1158         // expected.
1159         if (parsed_command_line().HasSwitch(switches::kTestType))
1160           return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1161         return content::RESULT_CODE_NORMAL_EXIT;
1162
1163       case ProcessSingleton::PROFILE_IN_USE:
1164         return chrome::RESULT_CODE_PROFILE_IN_USE;
1165
1166       case ProcessSingleton::LOCK_ERROR:
1167         LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1168                       "directory. This means that running multiple instances "
1169                       "would start multiple browser processes rather than "
1170                       "opening a new window in the existing process. Aborting "
1171                       "now to avoid profile corruption.";
1172         return chrome::RESULT_CODE_PROFILE_IN_USE;
1173
1174       default:
1175         NOTREACHED();
1176     }
1177   }
1178 #endif  // !defined(OS_ANDROID)
1179
1180   // Handle special early return paths (which couldn't be processed even earlier
1181   // as they require the process singleton to be held) first.
1182
1183   std::string try_chrome =
1184       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1185   if (!try_chrome.empty()) {
1186 #if defined(OS_WIN)
1187     // Setup.exe has determined that we need to run a retention experiment
1188     // and has lauched chrome to show the experiment UI. It is guaranteed that
1189     // no other Chrome is currently running as the process singleton was
1190     // sucessfully grabbed above.
1191     int try_chrome_int;
1192     base::StringToInt(try_chrome, &try_chrome_int);
1193     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1194         try_chrome_int,
1195         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1196                    base::Unretained(process_singleton_.get())));
1197     if (answer == TryChromeDialogView::NOT_NOW)
1198       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1199     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1200       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1201     // At this point the user is willing to try chrome again.
1202     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1203       // Only set in the unattended case, the interactive case is Windows 8.
1204       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1205           ShellIntegration::SET_DEFAULT_UNATTENDED)
1206         ShellIntegration::SetAsDefaultBrowser();
1207     }
1208 #else
1209     // We don't support retention experiments on Mac or Linux.
1210     return content::RESULT_CODE_NORMAL_EXIT;
1211 #endif  // defined(OS_WIN)
1212   }
1213
1214 #if defined(OS_WIN)
1215   // Do the tasks if chrome has been upgraded while it was last running.
1216   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1217     return content::RESULT_CODE_NORMAL_EXIT;
1218
1219   // Check if there is any machine level Chrome installed on the current
1220   // machine. If yes and the current Chrome process is user level, we do not
1221   // allow the user level Chrome to run. So we notify the user and uninstall
1222   // user level Chrome.
1223   // Note this check needs to happen here (after the process singleton was
1224   // obtained but before potentially creating the first run sentinel).
1225   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1226     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1227 #endif  // defined(OS_WIN)
1228
1229 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1230   if (sxs_linux::ShouldMigrateUserDataDir())
1231     return sxs_linux::MigrateUserDataDir();
1232 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1233
1234   // Desktop construction occurs here, (required before profile creation).
1235   PreProfileInit();
1236
1237   // Profile creation ----------------------------------------------------------
1238
1239   metrics::MetricsService::SetExecutionPhase(
1240       metrics::MetricsService::CREATE_PROFILE,
1241       g_browser_process->local_state());
1242   profile_ = CreatePrimaryProfile(parameters(),
1243                                   user_data_dir_,
1244                                   parsed_command_line());
1245   if (!profile_)
1246     return content::RESULT_CODE_NORMAL_EXIT;
1247
1248 #if !defined(OS_ANDROID)
1249   // The first run sentinel must be created after the process singleton was
1250   // grabbed and no early return paths were otherwise hit above.
1251   first_run::CreateSentinelIfNeeded();
1252 #endif  // !defined(OS_ANDROID)
1253
1254 #if defined(ENABLE_BACKGROUND)
1255   // Autoload any profiles which are running background apps.
1256   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1257   browser_process_->profile_manager()->AutoloadProfiles();
1258 #endif
1259   // Post-profile init ---------------------------------------------------------
1260
1261   TranslateService::Initialize();
1262
1263   // Needs to be done before PostProfileInit, since login manager on CrOS is
1264   // called inside PostProfileInit.
1265   content::WebUIControllerFactory::RegisterFactory(
1266       ChromeWebUIControllerFactory::GetInstance());
1267
1268   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1269   // So make sure to create it before that.
1270 #if !defined(DISABLE_NACL)
1271   NaClBrowserDelegateImpl* delegate =
1272       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1273   nacl::NaClBrowser::SetDelegate(delegate);
1274 #endif
1275
1276   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1277   // (requires supporting early exit).
1278   PostProfileInit();
1279
1280   // Retrieve cached GL strings from local state and use them for GPU
1281   // blacklist decisions.
1282   if (g_browser_process->gl_string_manager())
1283     g_browser_process->gl_string_manager()->Initialize();
1284
1285   // Create an instance of GpuModeManager to watch gpu mode pref change.
1286   g_browser_process->gpu_mode_manager();
1287
1288 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1289   // Show the First Run UI if this is the first time Chrome has been run on
1290   // this computer, or we're being compelled to do so by a command line flag.
1291   // Note that this be done _after_ the PrefService is initialized and all
1292   // preferences are registered, since some of the code that the importer
1293   // touches reads preferences.
1294   if (first_run::IsChromeFirstRun()) {
1295     first_run::AutoImport(profile_,
1296                           master_prefs_->homepage_defined,
1297                           master_prefs_->do_import_items,
1298                           master_prefs_->dont_import_items,
1299                           master_prefs_->import_bookmarks_path);
1300
1301     // Note: this can pop the first run consent dialog on linux.
1302     first_run::DoPostImportTasks(profile_,
1303                                  master_prefs_->make_chrome_default_for_user);
1304
1305     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1306       browser_creator_->set_show_main_browser_window(
1307           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1308     } else {
1309       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1310     }
1311   }
1312 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1313
1314 #if defined(OS_WIN)
1315   // Sets things up so that if we crash from this point on, a dialog will
1316   // popup asking the user to restart chrome. It is done this late to avoid
1317   // testing against a bunch of special cases that are taken care early on.
1318   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1319       parsed_command_line());
1320
1321   // Registers Chrome with the Windows Restart Manager, which will restore the
1322   // Chrome session when the computer is restarted after a system update.
1323   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1324   // but should run on startup if extended to handle crashes/hangs/patches.
1325   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1326   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1327     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1328         parsed_command_line());
1329   }
1330
1331   // Verify that the profile is not on a network share and if so prepare to show
1332   // notification to the user.
1333   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1334     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1335         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1336                    profile_->GetPath()));
1337   }
1338 #endif  // OS_WIN
1339
1340 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1341   // Init the RLZ library. This just binds the dll and schedules a task on the
1342   // file thread to be run sometime later. If this is the first run we record
1343   // the installation event.
1344   PrefService* pref_service = profile_->GetPrefs();
1345   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1346       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1347   // Negative ping delay means to send ping immediately after a first search is
1348   // recorded.
1349   RLZTracker::InitRlzFromProfileDelayed(
1350       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1351       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1352 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1353
1354   // Configure modules that need access to resources.
1355   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1356
1357   // In unittest mode, this will do nothing.  In normal mode, this will create
1358   // the global IntranetRedirectDetector instance, which will promptly go to
1359   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1360   // to see if it should do anything else.
1361   //
1362   // A simpler way of doing all this would be to have some function which could
1363   // give the time elapsed since startup, and simply have this object check that
1364   // when asked to initialize itself, but this doesn't seem to exist.
1365   //
1366   // This can't be created in the BrowserProcessImpl constructor because it
1367   // needs to read prefs that get set after that runs.
1368   browser_process_->intranet_redirect_detector();
1369   GoogleSearchCounter::RegisterForNotifications();
1370
1371   if (parsed_command_line().HasSwitch(switches::kEnableSdchOverHttps)) {
1372     net::SdchManager::EnableSecureSchemeSupport(true);
1373   } else {
1374     // Check SDCH field trial.
1375     const char kSdchFieldTrialName[] = "SDCH";
1376     const char kEnabledAllGroupName[] = "EnabledAll";
1377     const char kEnabledHttpOnlyGroupName[] = "EnabledHttpOnly";
1378     const char kDisabledAllGroupName[] = "DisabledAll";
1379
1380     base::StringPiece sdch_trial_group =
1381         base::FieldTrialList::FindFullName(kSdchFieldTrialName);
1382     if (sdch_trial_group.starts_with(kEnabledAllGroupName)) {
1383       net::SdchManager::EnableSecureSchemeSupport(true);
1384       net::SdchManager::EnableSdchSupport(true);
1385     } else if (sdch_trial_group.starts_with(kEnabledHttpOnlyGroupName)) {
1386       net::SdchManager::EnableSdchSupport(true);
1387     } else if (sdch_trial_group.starts_with(kDisabledAllGroupName)) {
1388       net::SdchManager::EnableSdchSupport(false);
1389     }
1390   }
1391
1392 #if defined(ENABLE_FULL_PRINTING) && !defined(OFFICIAL_BUILD)
1393   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1394     base::FilePath path =
1395         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1396     printing::PrintedDocument::set_debug_dump_path(path);
1397   }
1398 #endif
1399
1400   HandleTestParameters(parsed_command_line());
1401   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1402       base::debug::BeingDebugged());
1403
1404   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1405       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1406   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1407       browser_process_->GetApplicationLocale());
1408
1409   // Start watching for hangs during startup. We disarm this hang detector when
1410   // ThreadWatcher takes over or when browser is shutdown or when
1411   // startup_watcher_ is deleted.
1412   metrics::MetricsService::SetExecutionPhase(
1413       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1414       g_browser_process->local_state());
1415   startup_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1416
1417   // On mobile, need for clean shutdown arises only when the application comes
1418   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1419   // http://crbug.com/179143
1420 #if !defined(OS_ANDROID)
1421   // Start watching for a hang.
1422   metrics::MetricsService::LogNeedForCleanShutdown(
1423       g_browser_process->local_state());
1424 #endif
1425
1426 #if defined(ENABLE_FULL_PRINTING)
1427   // Create the instance of the cloud print proxy service so that it can launch
1428   // the service process if needed. This is needed because the service process
1429   // might have shutdown because an update was available.
1430   // TODO(torne): this should maybe be done with
1431   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1432   // instead?
1433   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1434 #endif
1435
1436   // Start watching all browser threads for responsiveness.
1437   metrics::MetricsService::SetExecutionPhase(
1438       metrics::MetricsService::THREAD_WATCHER_START,
1439       g_browser_process->local_state());
1440   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1441
1442 #if defined(OS_ANDROID)
1443   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1444 #endif
1445
1446 #if !defined(DISABLE_NACL)
1447   BrowserThread::PostTask(
1448       BrowserThread::IO,
1449       FROM_HERE,
1450       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1451 #endif
1452
1453   // Make sure initial prefs are recorded
1454   PrefMetricsService::Factory::GetForProfile(profile_);
1455
1456   PreBrowserStart();
1457
1458   // Instantiate the notification UI manager, as this triggers a perf timer
1459   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1460   // triggering the timer and call that explicitly in the approprate place.
1461   // http://crbug.com/105065.
1462   browser_process_->notification_ui_manager();
1463
1464   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1465     RegisterComponentsForUpdate();
1466
1467 #if defined(OS_ANDROID)
1468   chrome_variations::VariationsService* variations_service =
1469       browser_process_->variations_service();
1470   if (variations_service) {
1471     variations_service->set_policy_pref_service(profile_->GetPrefs());
1472     variations_service->StartRepeatedVariationsSeedFetch();
1473   }
1474   translate::TranslateDownloadManager::RequestLanguageList(
1475       profile_->GetPrefs());
1476
1477 #else
1478   // Most general initialization is behind us, but opening a
1479   // tab and/or session restore and such is still to be done.
1480   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1481
1482   // We are in regular browser boot sequence. Open initial tabs and enter the
1483   // main message loop.
1484   int result_code;
1485 #if defined(OS_CHROMEOS)
1486   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1487   // them this early as the cryptohome hasn't yet been mounted (which happens
1488   // only once we log in.
1489   std::vector<Profile*> last_opened_profiles;
1490 #else
1491   std::vector<Profile*> last_opened_profiles =
1492       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1493 #endif
1494
1495   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1496                               profile_, last_opened_profiles, &result_code)) {
1497 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1498     // Initialize autoupdate timer. Timer callback costs basically nothing
1499     // when browser is not in persistent mode, so it's OK to let it ride on
1500     // the main thread. This needs to be done here because we don't want
1501     // to start the timer when Chrome is run inside a test harness.
1502     browser_process_->StartAutoupdateTimer();
1503 #endif
1504
1505 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1506     // On Linux, the running exe will be updated if an upgrade becomes
1507     // available while the browser is running.  We need to save the last
1508     // modified time of the exe, so we can compare to determine if there is
1509     // an upgrade while the browser is kept alive by a persistent extension.
1510     upgrade_util::SaveLastModifiedTimeOfExe();
1511 #endif
1512
1513     // Record now as the last successful chrome start.
1514     GoogleUpdateSettings::SetLastRunTime();
1515
1516 #if defined(OS_MACOSX)
1517     // Call Recycle() here as late as possible, before going into the loop
1518     // because Start() will add things to it while creating the main window.
1519     if (parameters().autorelease_pool)
1520       parameters().autorelease_pool->Recycle();
1521 #endif
1522
1523     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1524     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1525
1526     // If we're running tests (ui_task is non-null), then we don't want to
1527     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1528     // RequestLanguageList
1529     if (parameters().ui_task == NULL) {
1530       // Request new variations seed information from server.
1531       chrome_variations::VariationsService* variations_service =
1532           browser_process_->variations_service();
1533       if (variations_service) {
1534         variations_service->StartRepeatedVariationsSeedFetch();
1535
1536 #if defined(OS_WIN)
1537         variations_service->StartGoogleUpdateRegistrySync();
1538 #endif
1539       }
1540
1541       translate::TranslateDownloadManager::RequestLanguageList(
1542           profile_->GetPrefs());
1543     }
1544
1545     run_message_loop_ = true;
1546   } else {
1547     run_message_loop_ = false;
1548   }
1549   browser_creator_.reset();
1550 #endif  // !defined(OS_ANDROID)
1551
1552   performance_monitor::PerformanceMonitor::GetInstance()->Initialize();
1553
1554 #if !defined(OS_ANDROID)
1555   process_power_collector_.reset(new ProcessPowerCollector);
1556   process_power_collector_->Initialize();
1557 #endif
1558
1559   PostBrowserStart();
1560
1561   if (parameters().ui_task) {
1562     // We end the startup timer here if we have parameters to run, because we
1563     // never start to run the main loop (where we normally stop the timer).
1564     startup_timer_->SignalStartupComplete(
1565         performance_monitor::StartupTimer::STARTUP_TEST);
1566     parameters().ui_task->Run();
1567     delete parameters().ui_task;
1568     run_message_loop_ = false;
1569   }
1570 #if defined(OS_ANDROID)
1571   // We never run the C++ main loop on Android, since the UI thread message
1572   // loop is controlled by the OS, so this is as close as we can get to
1573   // the start of the main loop
1574   if (result_code_ <= 0) {
1575     RecordBrowserStartupTime();
1576   }
1577 #endif
1578   return result_code_;
1579 }
1580
1581 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1582   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1583 #if defined(OS_ANDROID)
1584   // Chrome on Android does not use default MessageLoop. It has its own
1585   // Android specific MessageLoop
1586   NOTREACHED();
1587   return true;
1588 #else
1589   // Set the result code set in PreMainMessageLoopRun or set above.
1590   *result_code = result_code_;
1591   if (!run_message_loop_)
1592     return true;  // Don't run the default message loop.
1593
1594   // These should be invoked as close to the start of the browser's
1595   // UI thread message loop as possible to get a stable measurement
1596   // across versions.
1597   RecordBrowserStartupTime();
1598   startup_timer_->SignalStartupComplete(
1599       performance_monitor::StartupTimer::STARTUP_NORMAL);
1600
1601   DCHECK(base::MessageLoopForUI::IsCurrent());
1602   base::RunLoop run_loop;
1603
1604   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1605
1606   metrics::MetricsService::SetExecutionPhase(
1607       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1608       g_browser_process->local_state());
1609   run_loop.Run();
1610
1611   return true;
1612 #endif
1613 }
1614
1615 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1616   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1617 #if defined(OS_ANDROID)
1618   // Chrome on Android does not use default MessageLoop. It has its own
1619   // Android specific MessageLoop
1620   NOTREACHED();
1621 #else
1622
1623   // Start watching for jank during shutdown. It gets disarmed when
1624   // |shutdown_watcher_| object is destructed.
1625   metrics::MetricsService::SetExecutionPhase(
1626       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1627       g_browser_process->local_state());
1628   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1629
1630   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1631   startup_watcher_->Disarm();
1632
1633   // Remove observers attached to D-Bus clients before DbusThreadManager is
1634   // shut down.
1635   process_power_collector_.reset();
1636
1637   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1638     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1639
1640   // Some tests don't set parameters.ui_task, so they started translate
1641   // language fetch that was never completed so we need to cleanup here
1642   // otherwise it will be done by the destructor in a wrong thread.
1643   TranslateService::Shutdown(parameters().ui_task == NULL);
1644
1645   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1646     process_singleton_->Cleanup();
1647
1648   // Stop all tasks that might run on WatchDogThread.
1649   ThreadWatcherList::StopWatchingAll();
1650
1651   browser_process_->metrics_service()->Stop();
1652
1653   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1654   browser_process_->StartTearDown();
1655 #endif
1656 }
1657
1658 void ChromeBrowserMainParts::PostDestroyThreads() {
1659 #if defined(OS_ANDROID)
1660   // On Android, there is no quit/exit. So the browser's main message loop will
1661   // not finish.
1662   NOTREACHED();
1663 #else
1664   browser_process_->PostDestroyThreads();
1665   // browser_shutdown takes care of deleting browser_process, so we need to
1666   // release it.
1667   ignore_result(browser_process_.release());
1668   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1669   master_prefs_.reset();
1670   process_singleton_.reset();
1671
1672   // We need to do this check as late as possible, but due to modularity, this
1673   // may be the last point in Chrome.  This would be more effective if done at
1674   // a higher level on the stack, so that it is impossible for an early return
1675   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1676   // paths from content/browser/browser_main.
1677   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1678
1679 #if defined(OS_CHROMEOS)
1680   chromeos::CrosSettings::Shutdown();
1681 #endif
1682 #endif
1683 }
1684
1685 // Public members:
1686
1687 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1688   chrome_extra_parts_.push_back(parts);
1689 }