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/files/file_path.h"
  17 #include "base/files/file_util.h"
  18 #include "base/metrics/field_trial.h"
  19 #include "base/metrics/histogram_macros.h"
  20 #include "base/path_service.h"
  21 #include "base/prefs/json_pref_store.h"
  22 #include "base/prefs/pref_registry_simple.h"
  23 #include "base/prefs/pref_service.h"
  24 #include "base/prefs/pref_value_store.h"
  25 #include "base/prefs/scoped_user_pref_update.h"
  26 #include "base/process/process_info.h"
  27 #include "base/profiler/scoped_profile.h"
  28 #include "base/profiler/scoped_tracker.h"
  29 #include "base/run_loop.h"
  30 #include "base/strings/string_number_conversions.h"
  31 #include "base/strings/string_piece.h"
  32 #include "base/strings/string_split.h"
  33 #include "base/strings/sys_string_conversions.h"
  34 #include "base/strings/utf_string_conversions.h"
  35 #include "base/sys_info.h"
  36 #include "base/threading/platform_thread.h"
  37 #include "base/time/default_tick_clock.h"
  38 #include "base/time/time.h"
  39 #include "base/trace_event/trace_event.h"
  40 #include "base/values.h"
  41 #include "build/build_config.h"
  42 #include "cc/base/switches.h"
  43 #include "chrome/browser/about_flags.h"
  44 #include "chrome/browser/after_startup_task_utils.h"
  45 #include "chrome/browser/browser_process.h"
  46 #include "chrome/browser/browser_process_impl.h"
  47 #include "chrome/browser/browser_process_platform_part.h"
  48 #include "chrome/browser/browser_shutdown.h"
  49 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  50 #include "chrome/browser/component_updater/cld_component_installer.h"
  51 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  52 #include "chrome/browser/component_updater/flash_component_installer.h"
  53 #include "chrome/browser/component_updater/recovery_component_installer.h"
  54 #include "chrome/browser/component_updater/supervised_user_whitelist_installer.h"
  55 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  56 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  57 #include "chrome/browser/defaults.h"
  58 #include "chrome/browser/first_run/first_run.h"
  59 #include "chrome/browser/first_run/upgrade_util.h"
  60 #include "chrome/browser/google/google_search_counter.h"
  61 #include "chrome/browser/gpu/gl_string_manager.h"
  62 #include "chrome/browser/gpu/three_d_api_observer.h"
  63 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  64 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  65 #include "chrome/browser/metrics/metrics_services_manager.h"
  66 #include "chrome/browser/metrics/thread_watcher.h"
  67 #include "chrome/browser/metrics/variations/variations_service.h"
  68 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  69 #include "chrome/browser/net/chrome_net_log.h"
  70 #include "chrome/browser/net/crl_set_fetcher.h"
  71 #include "chrome/browser/notifications/desktop_notification_service.h"
  72 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  73 #include "chrome/browser/performance_monitor/performance_monitor.h"
  74 #include "chrome/browser/plugins/plugin_prefs.h"
  75 #include "chrome/browser/power/process_power_collector.h"
  76 #include "chrome/browser/pref_service_flags_storage.h"
  77 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  78 #include "chrome/browser/prefs/command_line_pref_store.h"
  79 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  80 #include "chrome/browser/prefs/pref_metrics_service.h"
  81 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  82 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  83 #include "chrome/browser/process_singleton.h"
  84 #include "chrome/browser/profiles/profile.h"
  85 #include "chrome/browser/profiles/profile_manager.h"
  86 #include "chrome/browser/profiles/profiles_state.h"
  87 #include "chrome/browser/shell_integration.h"
  88 #include "chrome/browser/translate/translate_service.h"
  89 #include "chrome/browser/ui/app_list/app_list_service.h"
  90 #include "chrome/browser/ui/browser.h"
  91 #include "chrome/browser/ui/browser_finder.h"
  92 #include "chrome/browser/ui/host_desktop.h"
  93 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  94 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  95 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  96 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  97 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  98 #include "chrome/common/chrome_constants.h"
  99 #include "chrome/common/chrome_paths.h"
 100 #include "chrome/common/chrome_result_codes.h"
 101 #include "chrome/common/chrome_switches.h"
 102 #include "chrome/common/chrome_version_info.h"
 103 #include "chrome/common/crash_keys.h"
 104 #include "chrome/common/env_vars.h"
 105 #include "chrome/common/logging_chrome.h"
 106 #include "chrome/common/net/net_resource_provider.h"
 107 #include "chrome/common/pref_names.h"
 108 #include "chrome/common/profiling.h"
 109 #include "chrome/common/variations/variations_util.h"
 110 #include "chrome/grit/generated_resources.h"
 111 #include "chrome/installer/util/google_update_settings.h"
 112 #include "components/component_updater/component_updater_service.h"
 113 #include "components/device_event_log/device_event_log.h"
 114 #include "components/google/core/browser/google_util.h"
 115 #include "components/language_usage_metrics/language_usage_metrics.h"
 116 #include "components/metrics/call_stack_profile_metrics_provider.h"
 117 #include "components/metrics/metrics_service.h"
 118 #include "components/metrics/profiler/tracking_synchronizer.h"
 119 #include "components/nacl/browser/nacl_browser.h"
 120 #include "components/rappor/rappor_service.h"
 121 #include "components/signin/core/common/profile_management_switches.h"
 122 #include "components/startup_metric_utils/startup_metric_utils.h"
 123 #include "components/translate/content/browser/browser_cld_utils.h"
 124 #include "components/translate/content/common/cld_data_source.h"
 125 #include "components/translate/core/browser/translate_download_manager.h"
 126 #include "components/variations/net/variations_http_header_provider.h"
 127 #include "components/variations/variations_associated_data.h"
 128 #include "content/public/browser/browser_thread.h"
 129 #include "content/public/browser/notification_observer.h"
 130 #include "content/public/browser/notification_registrar.h"
 131 #include "content/public/browser/notification_service.h"
 132 #include "content/public/browser/notification_types.h"
 133 #include "content/public/browser/power_usage_monitor.h"
 134 #include "content/public/browser/site_instance.h"
 135 #include "content/public/common/content_client.h"
 136 #include "content/public/common/content_switches.h"
 137 #include "content/public/common/main_function_params.h"
 138 #include "grit/platform_locale_settings.h"
 139 #include "media/audio/audio_manager.h"
 140 #include "net/base/net_module.h"
 141 #include "net/cookies/cookie_monster.h"
 142 #include "net/http/http_network_layer.h"
 143 #include "net/http/http_stream_factory.h"
 144 #include "net/url_request/url_request.h"
 145 #include "ui/base/l10n/l10n_util.h"
 146 #include "ui/base/layout.h"
 147 #include "ui/base/resource/resource_bundle.h"
 148 #include "ui/strings/grit/app_locale_settings.h"
 149
 150 #if defined(OS_ANDROID)
 151 #include "chrome/browser/android/dev_tools_discovery_provider_android.h"
 152 #include "chrome/browser/metrics/thread_watcher_android.h"
 153 #else
 154 #include "chrome/browser/devtools/chrome_devtools_discovery_provider.h"
 155 #include "chrome/browser/feedback/feedback_profile_observer.h"
 156 #endif  // defined(OS_ANDROID)
 157
 158 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 159 #include "chrome/browser/first_run/upgrade_util_linux.h"
 160 #include "chrome/browser/sxs_linux.h"
 161 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 162
 163 #if defined(OS_CHROMEOS)
 164 #include "chrome/browser/chromeos/settings/cros_settings.h"
 165 #include "chromeos/chromeos_switches.h"
 166 #include "chromeos/settings/cros_settings_names.h"
 167 #endif  // defined(OS_CHROMEOS)
 168
 169 // TODO(port): several win-only methods have been pulled out of this, but
 170 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 171 // other platforms. For now, it's just a stub. This is a serious work in
 172 // progress and should not be taken as an indication of a real refactoring.
 173
 174 #if defined(OS_WIN)
 175 #include "base/environment.h"  // For PreRead experiment.
 176 #include "base/win/windows_version.h"
 177 #include "chrome/browser/browser_util_win.h"
 178 #include "chrome/browser/chrome_browser_main_win.h"
 179 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 180 #include "chrome/browser/component_updater/caps_installer_win.h"
 181 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 182 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 183 #include "chrome/browser/first_run/upgrade_util_win.h"
 184 #include "chrome/browser/ui/network_profile_bubble.h"
 185 #include "chrome/installer/util/helper.h"
 186 #include "chrome/installer/util/install_util.h"
 187 #include "chrome/installer/util/shell_util.h"
 188 #include "components/browser_watcher/exit_funnel_win.h"
 189 #include "net/base/net_util.h"
 190 #include "ui/base/l10n/l10n_util_win.h"
 191 #include "ui/gfx/win/dpi.h"
 192 #include "ui/shell_dialogs/select_file_dialog.h"
 193 #endif  // defined(OS_WIN)
 194
 195 #if defined(OS_MACOSX)
 196 #include <Security/Security.h>
 197
 198 #include "base/mac/scoped_nsautorelease_pool.h"
 199 #include "chrome/browser/mac/keystone_glue.h"
 200 #endif  // defined(OS_MACOSX)
 201
 202 #if !defined(OS_IOS)
 203 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 204 #endif  // !defined(OS_IOS)
 205
 206 #if !defined(DISABLE_NACL)
 207 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 208 #include "components/nacl/browser/nacl_process_host.h"
 209 #endif  // !defined(DISABLE_NACL)
 210
 211 #if defined(ENABLE_EXTENSIONS)
 212 #include "chrome/browser/extensions/startup_helper.h"
 213 #include "extensions/browser/extension_protocols.h"
 214 #include "extensions/common/features/feature_provider.h"
 215 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 216 #endif  // defined(ENABLE_EXTENSIONS)
 217
 218 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 219 #include "printing/printed_document.h"
 220 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 221
 222 #if defined(ENABLE_RLZ)
 223 #include "chrome/browser/rlz/rlz.h"
 224 #endif  // defined(ENABLE_RLZ)
 225
 226 #if defined(ENABLE_WEBRTC)
 227 #include "chrome/browser/media/webrtc_log_util.h"
 228 #endif  // defined(ENABLE_WEBRTC)
 229
 230 #if defined(USE_AURA)
 231 #include "ui/aura/env.h"
 232 #endif  // defined(USE_AURA)
 233
 234 using content::BrowserThread;
 235
 236 namespace {
 237
 238 // This function provides some ways to test crash and assertion handling
 239 // behavior of the program.
 240 void HandleTestParameters(const base::CommandLine& command_line) {
 241   // This parameter causes a null pointer crash (crash reporter trigger).
 242   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 243     int* bad_pointer = NULL;
 244     *bad_pointer = 0;
 245   }
 246 }
 247
 248 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 249 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 250                         const std::vector<GURL>& new_tabs) {
 251   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 252        it != new_tabs.end(); ++it) {
 253     if (it->is_valid())
 254       browser_creator->AddFirstRunTab(*it);
 255   }
 256 }
 257 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 258
 259 // Returns the new local state object, guaranteed non-NULL.
 260 // |local_state_task_runner| must be a shutdown-blocking task runner.
 261 PrefService* InitializeLocalState(
 262     base::SequencedTaskRunner* local_state_task_runner,
 263     const base::CommandLine& parsed_command_line) {
 264   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 265
 266   // Load local state.  This includes the application locale so we know which
 267   // locale dll to load.  This also causes local state prefs to be registered.
 268   PrefService* local_state = g_browser_process->local_state();
 269   DCHECK(local_state);
 270
 271 #if defined(OS_WIN)
 272   if (first_run::IsChromeFirstRun()) {
 273     // During first run we read the google_update registry key to find what
 274     // language the user selected when downloading the installer. This
 275     // becomes our default language in the prefs.
 276     // Other platforms obey the system locale.
 277     base::string16 install_lang;
 278     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 279       local_state->SetString(prefs::kApplicationLocale,
 280                              base::UTF16ToASCII(install_lang));
 281     }
 282   }
 283 #endif  // defined(OS_WIN)
 284
 285   // If the local state file for the current profile doesn't exist and the
 286   // parent profile command line flag is present, then we should inherit some
 287   // local state from the parent profile.
 288   // Checking that the local state file for the current profile doesn't exist
 289   // is the most robust way to determine whether we need to inherit or not
 290   // since the parent profile command line flag can be present even when the
 291   // current profile is not a new one, and in that case we do not want to
 292   // inherit and reset the user's setting.
 293   //
 294   // TODO(mnissler): We should probably just instantiate a
 295   // JSONPrefStore here instead of an entire PrefService. Once this is
 296   // addressed, the call to browser_prefs::RegisterLocalState can move
 297   // to chrome_prefs::CreateLocalState.
 298   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 299     base::FilePath local_state_path;
 300     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 301     bool local_state_file_exists = base::PathExists(local_state_path);
 302     if (!local_state_file_exists) {
 303       base::FilePath parent_profile =
 304           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 305       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 306       scoped_ptr<PrefService> parent_local_state(
 307           chrome_prefs::CreateLocalState(
 308               parent_profile,
 309               local_state_task_runner,
 310               g_browser_process->policy_service(),
 311               registry,
 312               false));
 313       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 314       // Right now, we only inherit the locale setting from the parent profile.
 315       local_state->SetString(
 316           prefs::kApplicationLocale,
 317           parent_local_state->GetString(prefs::kApplicationLocale));
 318     }
 319   }
 320
 321 #if defined(OS_CHROMEOS)
 322   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 323     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 324     // Ensure that we start with owner's locale.
 325     if (!owner_locale.empty() &&
 326         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 327         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 328       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 329     }
 330   }
 331 #endif  // defined(OS_CHROMEOS)
 332
 333   return local_state;
 334 }
 335
 336 // Initializes the primary profile, possibly doing some user prompting to pick
 337 // a fallback profile. Returns the newly created profile, or NULL if startup
 338 // should not continue.
 339 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 340                               const base::FilePath& user_data_dir,
 341                               const base::CommandLine& parsed_command_line) {
 342   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 343   TRACK_SCOPED_REGION(
 344       "Startup", "ChromeBrowserMainParts::CreatePrimaryProfile");
 345
 346   base::Time start = base::Time::Now();
 347   if (profiles::IsMultipleProfilesEnabled() &&
 348       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 349     profiles::SetLastUsedProfile(
 350         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 351     // Clear kProfilesLastActive since the user only wants to launch a specific
 352     // profile.
 353     ListPrefUpdate update(g_browser_process->local_state(),
 354                           prefs::kProfilesLastActive);
 355     base::ListValue* profile_list = update.Get();
 356     profile_list->Clear();
 357   }
 358
 359   Profile* profile = NULL;
 360 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 361   // On ChromeOS and Android the ProfileManager will use the same path as the
 362   // one we got passed. GetActiveUserProfile will therefore use the correct path
 363   // automatically.
 364   DCHECK_EQ(user_data_dir.value(),
 365             g_browser_process->profile_manager()->user_data_dir().value());
 366   profile = ProfileManager::GetActiveUserProfile();
 367 #else
 368   base::FilePath profile_path =
 369       GetStartupProfilePath(user_data_dir, parsed_command_line);
 370
 371   // Without NewAvatarMenu, replace guest with any existing profile.
 372   if (!switches::IsNewAvatarMenu() &&
 373       profile_path == ProfileManager::GetGuestProfilePath()) {
 374     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 375         GetPathOfProfileAtIndex(0);
 376   }
 377   profile = g_browser_process->profile_manager()->GetProfile(
 378       profile_path);
 379
 380   // If we're using the --new-profile-management flag and this profile is
 381   // signed out, then we should show the user manager instead. By switching
 382   // the active profile to the guest profile we ensure that no
 383   // browser windows will be opened for the guest profile.
 384   if (switches::IsNewProfileManagement() &&
 385       profile &&
 386       !profile->IsGuestSession()) {
 387     ProfileInfoCache& cache =
 388         g_browser_process->profile_manager()->GetProfileInfoCache();
 389     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 390
 391     if (profile_index != std::string::npos &&
 392         cache.ProfileIsSigninRequiredAtIndex(profile_index)) {
 393       profile = g_browser_process->profile_manager()->GetProfile(
 394           ProfileManager::GetGuestProfilePath());
 395     }
 396   }
 397 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID)
 398   if (profile) {
 399     UMA_HISTOGRAM_LONG_TIMES(
 400         "Startup.CreateFirstProfile", base::Time::Now() - start);
 401     return profile;
 402   }
 403
 404 #if !defined(OS_WIN)
 405   // TODO(port): fix this.  See comments near the definition of
 406   // user_data_dir.  It is better to CHECK-fail here than it is to
 407   // silently exit because of missing code in the above test.
 408   CHECK(profile) << "Cannot get default profile.";
 409 #endif  // !defined(OS_WIN)
 410
 411   return NULL;
 412 }
 413
 414 #if defined(OS_MACOSX)
 415 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 416                           SecKeychainCallbackInfo* info, void* context) {
 417   return noErr;
 418 }
 419 #endif  // defined(OS_MACOSX)
 420
 421 void RegisterComponentsForUpdate() {
 422   component_updater::ComponentUpdateService* cus =
 423       g_browser_process->component_updater();
 424
 425   // Registration can be before or after cus->Start() so it is ok to post
 426   // a task to the UI thread to do registration once you done the necessary
 427   // file IO to know you existing component version.
 428 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 429   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 430   RegisterPepperFlashComponent(cus);
 431   RegisterSwiftShaderComponent(cus);
 432   RegisterWidevineCdmComponent(cus);
 433 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 434
 435 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 436 #if defined(OS_CHROMEOS)
 437   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 438   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 439   // installer when running on Linux. See crbug.com/422121 for more details.
 440   if (!base::SysInfo::IsRunningOnChromeOS())
 441 #endif  // defined(OS_CHROMEOS)
 442     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 443 #endif  // !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 444
 445   // Registration of the CLD Component is a no-op unless the CLD data source has
 446   // been configured to be the "Component" data source.
 447   RegisterCldComponent(cus);
 448
 449   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 450       g_browser_process->supervised_user_whitelist_installer();
 451   whitelist_installer->RegisterComponents();
 452
 453   base::FilePath path;
 454   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 455 #if defined(OS_ANDROID)
 456     // The CRLSet component was enabled for some releases. This code attempts to
 457     // delete it from the local disk of those how may have downloaded it.
 458     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 459 #elif !defined(OS_CHROMEOS)
 460     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 461     // network.
 462     // For Chrome OS this registration is delayed until user login.
 463     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 464     // Registration of the EV Whitelist component here is not necessary for:
 465     // 1. Android: Because it currently does not have the EV indicator.
 466     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 467     RegisterEVWhitelistComponent(cus, path);
 468 #endif  // defined(OS_ANDROID)
 469   }
 470
 471 #if defined(OS_WIN)
 472   RegisterSwReporterComponent(cus, g_browser_process->local_state());
 473   RegisterCAPSComponent(cus);
 474 #endif  // defined(OS_WIN)
 475 }
 476
 477 #if !defined(OS_ANDROID)
 478 bool ProcessSingletonNotificationCallback(
 479     const base::CommandLine& command_line,
 480     const base::FilePath& current_directory) {
 481   // Drop the request if the browser process is already in shutdown path.
 482   if (!g_browser_process || g_browser_process->IsShuttingDown()) {
 483 #if defined(OS_WIN)
 484     browser_watcher::ExitFunnel::RecordSingleEvent(
 485         chrome::kBrowserExitCodesRegistryPath,
 486         L"ProcessSingletonIsShuttingDown");
 487 #endif  // defined(OS_WIN)
 488
 489     return false;
 490   }
 491
 492   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 493     std::string start_time_string =
 494         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 495     int64 remote_start_time;
 496     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 497       base::TimeDelta elapsed =
 498           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 499       if (command_line.HasSwitch(switches::kFastStart)) {
 500         UMA_HISTOGRAM_LONG_TIMES(
 501             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 502       } else {
 503         UMA_HISTOGRAM_LONG_TIMES(
 504             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 505       }
 506     }
 507   }
 508
 509   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 510       command_line);
 511
 512   base::FilePath user_data_dir =
 513       g_browser_process->profile_manager()->user_data_dir();
 514   base::FilePath startup_profile_dir =
 515       GetStartupProfilePath(user_data_dir, command_line);
 516
 517   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 518       command_line, current_directory, startup_profile_dir);
 519   return true;
 520 }
 521 #endif  // !defined(OS_ANDROID)
 522
 523 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 524   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 525     std::string port_str =
 526         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 527     int port;
 528     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 529       g_browser_process->CreateDevToolsHttpProtocolHandler(
 530           chrome::HOST_DESKTOP_TYPE_NATIVE,
 531           "127.0.0.1",
 532           static_cast<uint16>(port));
 533     } else {
 534       DLOG(WARNING) << "Invalid http debugger port number " << port;
 535     }
 536   }
 537 }
 538
 539 }  // namespace
 540
 541 namespace chrome_browser {
 542
 543 // This error message is not localized because we failed to load the
 544 // localization data files.
 545 #if defined(OS_WIN)
 546 const char kMissingLocaleDataTitle[] = "Missing File Error";
 547 #endif  // defined(OS_WIN)
 548
 549 #if defined(OS_WIN)
 550 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 551 const char kMissingLocaleDataMessage[] =
 552     "Unable to find locale data files. Please reinstall.";
 553 #endif  // defined(OS_WIN)
 554
 555 }  // namespace chrome_browser
 556
 557 // BrowserMainParts ------------------------------------------------------------
 558
 559 ChromeBrowserMainParts::ChromeBrowserMainParts(
 560     const content::MainFunctionParams& parameters)
 561     : parameters_(parameters),
 562       parsed_command_line_(parameters.command_line),
 563       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 564       startup_watcher_(new StartupTimeBomb()),
 565       shutdown_watcher_(new ShutdownWatcherHelper()),
 566       browser_field_trials_(parameters.command_line),
 567       profile_(NULL),
 568       run_message_loop_(true),
 569       notify_result_(ProcessSingleton::PROCESS_NONE),
 570       local_state_(NULL),
 571       restart_last_session_(false) {
 572   // If we're running tests (ui_task is non-null).
 573   if (parameters.ui_task)
 574     browser_defaults::enable_help_app = false;
 575
 576   // Chrome disallows cookies by default. All code paths that want to use
 577   // cookies need to go through one of Chrome's URLRequestContexts which have
 578   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 579   net::URLRequest::SetDefaultCookiePolicyToBlock();
 580 }
 581
 582 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 583   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 584     delete chrome_extra_parts_[i];
 585   chrome_extra_parts_.clear();
 586 }
 587
 588 // This will be called after the command-line has been mutated by about:flags
 589 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 590   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 591   // Must initialize metrics after labs have been converted into switches,
 592   // but before field trials are set up (so that client ID is available for
 593   // one-time randomized field trials).
 594
 595   // Initialize FieldTrialList to support FieldTrials that use one-time
 596   // randomization.
 597   metrics::MetricsService* metrics = browser_process_->metrics_service();
 598   field_trial_list_.reset(
 599       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 600
 601   const base::CommandLine* command_line =
 602       base::CommandLine::ForCurrentProcess();
 603   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 604       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 605     base::FieldTrial::EnableBenchmarking();
 606   }
 607
 608   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 609     bool result = chrome_variations::AssociateParamsFromString(
 610         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 611     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 612                   << " list specified.";
 613   }
 614
 615   // Ensure any field trials specified on the command line are initialized.
 616   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 617     std::set<std::string> unforceable_field_trials;
 618 #if defined(OFFICIAL_BUILD)
 619     unforceable_field_trials.insert("SettingsEnforcement");
 620 #endif  // defined(OFFICIAL_BUILD)
 621
 622     // Create field trials without activating them, so that this behaves in a
 623     // consistent manner with field trials created from the server.
 624     bool result = base::FieldTrialList::CreateTrialsFromString(
 625         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 626         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 627         unforceable_field_trials);
 628     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 629                   << " list specified.";
 630   }
 631   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 632     // Create default variation ids which will always be included in the
 633     // X-Client-Data request header.
 634     variations::VariationsHttpHeaderProvider* provider =
 635         variations::VariationsHttpHeaderProvider::GetInstance();
 636     bool result = provider->SetDefaultVariationIds(
 637         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 638     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 639                   << " list specified.";
 640     metrics->AddSyntheticTrialObserver(provider);
 641   }
 642   chrome_variations::VariationsService* variations_service =
 643       browser_process_->variations_service();
 644   if (variations_service)
 645     variations_service->CreateTrialsFromSeed();
 646
 647   // This must be called after |local_state_| is initialized.
 648   browser_field_trials_.SetupFieldTrials();
 649
 650   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 651   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 652   // Even though base::Bind does AddRef and Release, the object will not be
 653   // deleted after the Task is executed.
 654   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 655
 656   // Now that field trials have been created, initializes metrics recording.
 657   metrics->InitializeMetricsRecordingState();
 658
 659   const chrome::VersionInfo::Channel channel =
 660       chrome::VersionInfo::GetChannel();
 661
 662   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 663   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 664   if (channel == chrome::VersionInfo::CHANNEL_UNKNOWN ||
 665       channel == chrome::VersionInfo::CHANNEL_CANARY ||
 666       channel == chrome::VersionInfo::CHANNEL_DEV) {
 667     media::AudioManager::EnableHangMonitor();
 668   }
 669
 670   // Enable profiler instrumentation depending on the channel.
 671   switch (channel) {
 672     case chrome::VersionInfo::CHANNEL_UNKNOWN:
 673     case chrome::VersionInfo::CHANNEL_CANARY:
 674       tracked_objects::ScopedTracker::Enable();
 675       break;
 676
 677     case chrome::VersionInfo::CHANNEL_DEV:
 678     case chrome::VersionInfo::CHANNEL_BETA:
 679     case chrome::VersionInfo::CHANNEL_STABLE:
 680       // Don't enable instrumentation.
 681       break;
 682   }
 683 }
 684
 685 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 686
 687 void ChromeBrowserMainParts::StartMetricsRecording() {
 688   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 689
 690   g_browser_process->metrics_service()->CheckForClonedInstall(
 691       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 692
 693   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 694 }
 695
 696 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 697   // Don't record any metrics if UI was displayed before this point e.g.
 698   // warning dialogs.
 699   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 700     return;
 701
 702 #if defined(OS_ANDROID)
 703   // On Android the first run is handled in Java code, and the C++ side of
 704   // Chrome doesn't know if this is the first run. This will cause some
 705   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 706   // rare).
 707   bool is_first_run = false;
 708 #else
 709   bool is_first_run = first_run::IsChromeFirstRun();
 710 #endif  // defined(OS_ANDROID)
 711
 712 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 713 // platforms.
 714 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 715   const base::Time process_creation_time =
 716       base::CurrentProcessInfo::CreationTime();
 717
 718   if (!is_first_run && !process_creation_time.is_null()) {
 719     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 720     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 721   }
 722 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 723
 724   // Record collected startup metrics.
 725   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 726 }
 727
 728 // -----------------------------------------------------------------------------
 729 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 730
 731 #if defined(OS_WIN)
 732 #define DLLEXPORT __declspec(dllexport)
 733
 734 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 735 extern "C" {
 736 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 737 }
 738
 739 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 740   // Need an instance of AtExitManager to handle singleton creations and
 741   // deletions.  We need this new instance because, the old instance created
 742   // in ChromeMain() got destructed when the function returned.
 743   base::AtExitManager exit_manager;
 744   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 745 }
 746 #endif
 747
 748 // content::BrowserMainParts implementation ------------------------------------
 749
 750 void ChromeBrowserMainParts::PreEarlyInitialization() {
 751   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 752   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 753     chrome_extra_parts_[i]->PreEarlyInitialization();
 754 }
 755
 756 void ChromeBrowserMainParts::PostEarlyInitialization() {
 757   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 758   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 759     chrome_extra_parts_[i]->PostEarlyInitialization();
 760 }
 761
 762 void ChromeBrowserMainParts::ToolkitInitialized() {
 763   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 764   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 765     chrome_extra_parts_[i]->ToolkitInitialized();
 766 }
 767
 768 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 769   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 770
 771   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 772     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 773 }
 774
 775 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 776   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 777
 778   // device_event_log must be initialized after the message loop. Calls to
 779   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 780   // platforms (e.g. chromeos) may have already initialized this.
 781   if (!device_event_log::IsInitialized())
 782     device_event_log::Initialize(0 /* default max entries */);
 783
 784   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 785     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 786 }
 787
 788 int ChromeBrowserMainParts::PreCreateThreads() {
 789   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 790   result_code_ = PreCreateThreadsImpl();
 791
 792   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 793 #if !defined(OS_ANDROID)
 794     // These members must be initialized before exiting this function normally.
 795     DCHECK(master_prefs_.get());
 796     DCHECK(browser_creator_.get());
 797 #endif  // !defined(OS_ANDROID)
 798     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 799       chrome_extra_parts_[i]->PreCreateThreads();
 800   }
 801
 802   return result_code_;
 803 }
 804
 805 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 806   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 807   run_message_loop_ = false;
 808 #if !defined(OS_ANDROID)
 809   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 810 #endif  // !defined(OS_ANDROID)
 811   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 812     return chrome::RESULT_CODE_MISSING_DATA;
 813
 814   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 815   MediaCaptureDevicesDispatcher::GetInstance();
 816
 817   // Android's first run is done in Java instead of native.
 818 #if !defined(OS_ANDROID)
 819   process_singleton_.reset(new ChromeProcessSingleton(
 820       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 821
 822   // Cache first run state early.
 823   first_run::IsChromeFirstRun();
 824 #endif  // !defined(OS_ANDROID)
 825
 826   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 827       JsonPrefStore::GetTaskRunnerForFile(
 828           base::FilePath(chrome::kLocalStorePoolName),
 829           BrowserThread::GetBlockingPool());
 830
 831   {
 832     TRACE_EVENT0("startup",
 833       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 834     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 835                                                   parsed_command_line()));
 836   }
 837
 838   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 839     TRACE_EVENT0("startup",
 840         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 841     // User wants to override default tracking status.
 842     std::string flag =
 843       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 844     // Default to basic profiling (no parent child support).
 845     tracked_objects::ThreadData::Status status =
 846           tracked_objects::ThreadData::PROFILING_ACTIVE;
 847     if (flag.compare("0") != 0)
 848       status = tracked_objects::ThreadData::DEACTIVATED;
 849     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 850   }
 851
 852   local_state_ = InitializeLocalState(
 853       local_state_task_runner.get(), parsed_command_line());
 854
 855 #if !defined(OS_ANDROID)
 856   // These members must be initialized before returning from this function.
 857   master_prefs_.reset(new first_run::MasterPrefs);
 858   // Android doesn't use StartupBrowserCreator.
 859   browser_creator_.reset(new StartupBrowserCreator);
 860   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 861   chrome::UMABrowsingActivityObserver::Init();
 862 #endif  // !defined(OS_ANDROID)
 863
 864 #if !defined(OS_CHROMEOS)
 865   // Convert active labs into switches. This needs to be done before
 866   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 867   // affected by experiment flags (--touch-optimized-ui in particular).
 868   // On ChromeOS system level flags are applied from the device settings from
 869   // the session manager.
 870   {
 871     TRACE_EVENT0("startup",
 872         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 873     about_flags::PrefServiceFlagsStorage flags_storage_(
 874         g_browser_process->local_state());
 875     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 876                                         base::CommandLine::ForCurrentProcess(),
 877                                         about_flags::kAddSentinels);
 878   }
 879 #endif  // !defined(OS_CHROMEOS)
 880
 881   local_state_->UpdateCommandLinePrefStore(
 882       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 883
 884   // Reset the command line in the crash report details, since we may have
 885   // just changed it to include experiments.
 886   crash_keys::SetSwitchesFromCommandLine(
 887       base::CommandLine::ForCurrentProcess());
 888
 889   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 890   // needed when loading the MainMenu.nib and the language doesn't depend on
 891   // anything since it comes from Cocoa.
 892 #if defined(OS_MACOSX)
 893   std::string locale =
 894       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 895   browser_process_->SetApplicationLocale(locale);
 896 #else
 897   const std::string locale =
 898       local_state_->GetString(prefs::kApplicationLocale);
 899
 900   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 901   // method InitSharedInstance is ignored.
 902
 903   TRACE_EVENT_BEGIN0("startup",
 904       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 905   const std::string loaded_locale =
 906       ui::ResourceBundle::InitSharedInstanceWithLocale(
 907           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 908   TRACE_EVENT_END0("startup",
 909       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 910
 911   if (loaded_locale.empty() &&
 912       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 913     ShowMissingLocaleMessageBox();
 914     return chrome::RESULT_CODE_MISSING_DATA;
 915   }
 916   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 917   browser_process_->SetApplicationLocale(loaded_locale);
 918
 919   base::FilePath resources_pack_path;
 920   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 921   {
 922     TRACE_EVENT0("startup",
 923         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 924     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 925         resources_pack_path, ui::SCALE_FACTOR_NONE);
 926   }
 927 #endif  // defined(OS_MACOSX)
 928
 929   // Android does first run in Java instead of native.
 930   // Chrome OS has its own out-of-box-experience code.
 931 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 932   // On first run, we need to process the predictor preferences before the
 933   // browser's profile_manager object is created, but after ResourceBundle
 934   // is initialized.
 935   if (first_run::IsChromeFirstRun()) {
 936     first_run::ProcessMasterPreferencesResult pmp_result =
 937         first_run::ProcessMasterPreferences(user_data_dir_,
 938                                             master_prefs_.get());
 939     if (pmp_result == first_run::EULA_EXIT_NOW)
 940       return chrome::RESULT_CODE_EULA_REFUSED;
 941
 942     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 943         !parsed_command_line().HasSwitch(switches::kAppId) &&
 944         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 945       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 946     }
 947
 948     // TODO(macourteau): refactor preferences that are copied from
 949     // master_preferences into local_state, as a "local_state" section in
 950     // master preferences. If possible, a generic solution would be preferred
 951     // over a copy one-by-one of specific preferences. Also see related TODO
 952     // in first_run.h.
 953
 954     // Store the initial VariationsService seed in local state, if it exists
 955     // in master prefs.
 956     if (!master_prefs_->variations_seed.empty() ||
 957         !master_prefs_->compressed_variations_seed.empty()) {
 958       if (!master_prefs_->variations_seed.empty()) {
 959         local_state_->SetString(prefs::kVariationsSeed,
 960                               master_prefs_->variations_seed);
 961       }
 962       if (!master_prefs_->compressed_variations_seed.empty()) {
 963         local_state_->SetString(prefs::kVariationsCompressedSeed,
 964                                 master_prefs_->compressed_variations_seed);
 965       }
 966       if (!master_prefs_->variations_seed_signature.empty()) {
 967         local_state_->SetString(prefs::kVariationsSeedSignature,
 968                                 master_prefs_->variations_seed_signature);
 969       }
 970       // Set the variation seed date to the current system time. If the user's
 971       // clock is incorrect, this may cause some field trial expiry checks to
 972       // not do the right thing until the next seed update from the server,
 973       // when this value will be updated.
 974       local_state_->SetInt64(prefs::kVariationsSeedDate,
 975                              base::Time::Now().ToInternalValue());
 976     }
 977
 978     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 979       local_state_->SetString(
 980           prefs::kBrowserSuppressDefaultBrowserPrompt,
 981           master_prefs_->suppress_default_browser_prompt_for_version);
 982     }
 983   }
 984 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 985
 986 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 987   // Set the product channel for crash reports.
 988   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 989       chrome::VersionInfo::GetVersionStringModifier());
 990 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 991
 992   // Initialize tracking synchronizer system.
 993   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
 994       make_scoped_ptr(new base::DefaultTickClock()));
 995
 996 #if defined(OS_MACOSX)
 997   // Get the Keychain API to register for distributed notifications on the main
 998   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 999   // which doesn't. This ensures those notifications will get delivered
1000   // properly. See issue 37766.
1001   // (Note that the callback mask here is empty. I don't want to register for
1002   // any callbacks, I just want to initialize the mechanism.)
1003   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1004 #endif  // defined(OS_MACOSX)
1005
1006 #if defined(OS_CHROMEOS)
1007   // Must be done after g_browser_process is constructed, before
1008   // SetupMetricsAndFieldTrials().
1009   chromeos::CrosSettings::Initialize();
1010 #endif  // defined(OS_CHROMEOS)
1011
1012   // Now the command line has been mutated based on about:flags, we can setup
1013   // metrics and initialize field trials. The field trials are needed by
1014   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1015   SetupMetricsAndFieldTrials();
1016
1017   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1018   browser_process_->PreCreateThreads();
1019
1020   return content::RESULT_CODE_NORMAL_EXIT;
1021 }
1022
1023 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1024   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1025   TRACK_SCOPED_REGION(
1026       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1027
1028   result_code_ = PreMainMessageLoopRunImpl();
1029
1030   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1031     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1032 }
1033
1034 // PreMainMessageLoopRun calls these extra stages in the following order:
1035 //  PreMainMessageLoopRunImpl()
1036 //   ... initial setup, including browser_process_ setup.
1037 //   PreProfileInit()
1038 //   ... additional setup, including CreateProfile()
1039 //   PostProfileInit()
1040 //   ... additional setup
1041 //   PreBrowserStart()
1042 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1043 //   PostBrowserStart()
1044
1045 void ChromeBrowserMainParts::PreProfileInit() {
1046   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1047
1048   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1049     chrome_extra_parts_[i]->PreProfileInit();
1050
1051 #if !defined(OS_ANDROID)
1052   // Initialize the feedback uploader so it can setup notifications for profile
1053   // creation.
1054   feedback::FeedbackProfileObserver::Initialize();
1055
1056   // Ephemeral profiles may have been left behind if the browser crashed.
1057   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1058 #endif  // !defined(OS_ANDROID)
1059
1060 #if defined(ENABLE_EXTENSIONS)
1061   javascript_dialog_extensions_client::InstallClient();
1062 #endif  // defined(ENABLE_EXTENSIONS)
1063
1064 #if !defined(OS_IOS)
1065   InstallChromeJavaScriptNativeDialogFactory();
1066 #endif  // !defined(OS_IOS)
1067 }
1068
1069 void ChromeBrowserMainParts::PostProfileInit() {
1070   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1071
1072 #if defined(OS_ANDROID)
1073   DevToolsDiscoveryProviderAndroid::Install();
1074 #else
1075   ChromeDevToolsDiscoveryProvider::Install();
1076 #endif  // defined(OS_ANDROID)
1077
1078   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1079   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1080     chrome_extra_parts_[i]->PostProfileInit();
1081 }
1082
1083 void ChromeBrowserMainParts::PreBrowserStart() {
1084   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1085   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1086     chrome_extra_parts_[i]->PreBrowserStart();
1087
1088   three_d_observer_.reset(new ThreeDAPIObserver());
1089 }
1090
1091 void ChromeBrowserMainParts::PostBrowserStart() {
1092   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1093   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1094     chrome_extra_parts_[i]->PostBrowserStart();
1095 #if !defined(OS_ANDROID)
1096   // Allow ProcessSingleton to process messages.
1097   process_singleton_->Unlock();
1098 #endif  // !defined(OS_ANDROID)
1099 #if defined(ENABLE_WEBRTC)
1100   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1101   // to reduce the impact on startup time.
1102   BrowserThread::PostDelayedTask(
1103       BrowserThread::UI,
1104       FROM_HERE,
1105       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1106       base::TimeDelta::FromMinutes(1));
1107 #endif  // defined(ENABLE_WEBRTC)
1108
1109   // At this point, StartupBrowserCreator::Start has run creating initial
1110   // browser windows and tabs, but no progress has been made in loading
1111   // content as the main message loop hasn't started processing tasks yet.
1112   // We setup to observe to the initial page load here to defer running
1113   // task posted via PostAfterStartupTask until its complete.
1114   AfterStartupTaskUtils::StartMonitoringStartup();
1115 }
1116
1117 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1118   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1119   TRACK_SCOPED_REGION(
1120       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1121
1122   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1123   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1124
1125 #if defined(OS_WIN)
1126   // Windows parental controls calls can be slow, so we do an early init here
1127   // that calculates this value off of the UI thread.
1128   IncognitoModePrefs::InitializePlatformParentalControls();
1129 #endif
1130
1131 #if defined(ENABLE_EXTENSIONS)
1132   if (!variations::GetVariationParamValue(
1133       "LightSpeed", "EarlyInitStartup").empty()) {
1134     // Try to compute this early on another thread so that we don't spend time
1135     // during profile load initializing the extensions APIs.
1136     BrowserThread::PostTask(
1137         BrowserThread::FILE_USER_BLOCKING,
1138         FROM_HERE,
1139         base::Bind(
1140             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1141   }
1142 #endif
1143
1144   // Android updates the metrics service dynamically depending on whether the
1145   // application is in the foreground or not. Do not start here.
1146 #if !defined(OS_ANDROID)
1147   // Now that the file thread has been started, start recording.
1148   StartMetricsRecording();
1149 #endif  // !defined(OS_ANDROID)
1150
1151   if (!base::debug::BeingDebugged()) {
1152     // Create watchdog thread after creating all other threads because it will
1153     // watch the other threads and they must be running.
1154     browser_process_->watchdog_thread();
1155   }
1156
1157   // Do any initializating in the browser process that requires all threads
1158   // running.
1159   browser_process_->PreMainMessageLoopRun();
1160
1161   // Record last shutdown time into a histogram.
1162   browser_shutdown::ReadLastShutdownInfo();
1163
1164 #if defined(OS_WIN)
1165   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1166   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1167   // upgrade/uninstall happen separately.
1168   bool already_running = browser_util::IsBrowserAlreadyRunning();
1169
1170   // If the command line specifies 'uninstall' then we need to work here
1171   // unless we detect another chrome browser running.
1172   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1173     return DoUninstallTasks(already_running);
1174   }
1175
1176   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1177       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1178     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1179         parsed_command_line_);
1180   }
1181
1182   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1183       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1184 #endif  // defined(OS_WIN)
1185
1186   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1187     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1188         prefs::kDefaultBrowserSettingEnabled);
1189     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1190         prefs::kDefaultBrowserSettingEnabled)) {
1191       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1192     }
1193
1194     return ShellIntegration::SetAsDefaultBrowser() ?
1195         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1196         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1197   }
1198
1199 #if defined(USE_AURA)
1200   // Make sure aura::Env has been initialized.
1201   CHECK(aura::Env::GetInstance());
1202 #endif  // defined(USE_AURA)
1203
1204   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1205 #if !defined(OS_ANDROID)
1206   // If the command line specifies --pack-extension, attempt the pack extension
1207   // startup action and exit.
1208   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1209     extensions::StartupHelper extension_startup_helper;
1210     if (extension_startup_helper.PackExtension(parsed_command_line()))
1211       return content::RESULT_CODE_NORMAL_EXIT;
1212     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1213   }
1214
1215   // When another process is running, use that process instead of starting a
1216   // new one. NotifyOtherProcess will currently give the other process up to
1217   // 20 seconds to respond. Note that this needs to be done before we attempt
1218   // to read the profile.
1219   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1220   switch (notify_result_) {
1221     case ProcessSingleton::PROCESS_NONE:
1222       // No process already running, fall through to starting a new one.
1223       break;
1224
1225     case ProcessSingleton::PROCESS_NOTIFIED:
1226 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1227       // On POSIX systems, print a message notifying the process is running.
1228       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1229           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1230 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1231
1232       // Having a differentiated return type for testing allows for tests to
1233       // verify proper handling of some switches. When not testing, stick to
1234       // the standard Unix convention of returning zero when things went as
1235       // expected.
1236       if (parsed_command_line().HasSwitch(switches::kTestType))
1237         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1238       return content::RESULT_CODE_NORMAL_EXIT;
1239
1240     case ProcessSingleton::PROFILE_IN_USE:
1241       return chrome::RESULT_CODE_PROFILE_IN_USE;
1242
1243     case ProcessSingleton::LOCK_ERROR:
1244       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1245                     "directory. This means that running multiple instances "
1246                     "would start multiple browser processes rather than "
1247                     "opening a new window in the existing process. Aborting "
1248                     "now to avoid profile corruption.";
1249       return chrome::RESULT_CODE_PROFILE_IN_USE;
1250
1251     default:
1252       NOTREACHED();
1253   }
1254 #endif  // !defined(OS_ANDROID)
1255
1256   // Handle special early return paths (which couldn't be processed even earlier
1257   // as they require the process singleton to be held) first.
1258
1259   std::string try_chrome =
1260       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1261   if (!try_chrome.empty()) {
1262 #if defined(OS_WIN)
1263     // Setup.exe has determined that we need to run a retention experiment
1264     // and has lauched chrome to show the experiment UI. It is guaranteed that
1265     // no other Chrome is currently running as the process singleton was
1266     // sucessfully grabbed above.
1267     int try_chrome_int;
1268     base::StringToInt(try_chrome, &try_chrome_int);
1269     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1270         try_chrome_int,
1271         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1272                    base::Unretained(process_singleton_.get())));
1273     if (answer == TryChromeDialogView::NOT_NOW)
1274       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1275     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1276       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1277     // At this point the user is willing to try chrome again.
1278     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1279       // Only set in the unattended case, the interactive case is Windows 8.
1280       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1281           ShellIntegration::SET_DEFAULT_UNATTENDED)
1282         ShellIntegration::SetAsDefaultBrowser();
1283     }
1284 #else
1285     // We don't support retention experiments on Mac or Linux.
1286     return content::RESULT_CODE_NORMAL_EXIT;
1287 #endif  // defined(OS_WIN)
1288   }
1289
1290 #if defined(OS_WIN)
1291   // Do the tasks if chrome has been upgraded while it was last running.
1292   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1293     return content::RESULT_CODE_NORMAL_EXIT;
1294
1295   // Check if there is any machine level Chrome installed on the current
1296   // machine. If yes and the current Chrome process is user level, we do not
1297   // allow the user level Chrome to run. So we notify the user and uninstall
1298   // user level Chrome.
1299   // Note this check needs to happen here (after the process singleton was
1300   // obtained but before potentially creating the first run sentinel).
1301   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1302     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1303 #endif  // defined(OS_WIN)
1304
1305 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1306   if (sxs_linux::ShouldMigrateUserDataDir())
1307     return sxs_linux::MigrateUserDataDir();
1308 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1309
1310   // Desktop construction occurs here, (required before profile creation).
1311   PreProfileInit();
1312
1313   // Profile creation ----------------------------------------------------------
1314
1315   metrics::MetricsService::SetExecutionPhase(
1316       metrics::MetricsService::CREATE_PROFILE,
1317       g_browser_process->local_state());
1318
1319   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1320                       base::TimeTicks::Now() - start_time_step1);
1321
1322   // This step is costly and is already measured in Startup.CreateFirstProfile
1323   // and more directly Profile.CreateAndInitializeProfile.
1324   profile_ = CreatePrimaryProfile(parameters(),
1325                                   user_data_dir_,
1326                                   parsed_command_line());
1327   if (!profile_)
1328     return content::RESULT_CODE_NORMAL_EXIT;
1329
1330 #if !defined(OS_ANDROID)
1331   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1332   // The first run sentinel must be created after the process singleton was
1333   // grabbed and no early return paths were otherwise hit above.
1334   first_run::CreateSentinelIfNeeded();
1335 #endif  // !defined(OS_ANDROID)
1336
1337 #if defined(ENABLE_BACKGROUND)
1338   // Autoload any profiles which are running background apps.
1339   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1340   browser_process_->profile_manager()->AutoloadProfiles();
1341 #endif  // defined(ENABLE_BACKGROUND)
1342   // Post-profile init ---------------------------------------------------------
1343
1344   TranslateService::Initialize();
1345
1346   // Needs to be done before PostProfileInit, since login manager on CrOS is
1347   // called inside PostProfileInit.
1348   content::WebUIControllerFactory::RegisterFactory(
1349       ChromeWebUIControllerFactory::GetInstance());
1350
1351   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1352   // So make sure to create it before that.
1353 #if !defined(DISABLE_NACL)
1354   NaClBrowserDelegateImpl* delegate =
1355       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1356   nacl::NaClBrowser::SetDelegate(delegate);
1357 #endif  // !defined(DISABLE_NACL)
1358
1359   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1360   // (requires supporting early exit).
1361   PostProfileInit();
1362
1363   // Retrieve cached GL strings from local state and use them for GPU
1364   // blacklist decisions.
1365   if (g_browser_process->gl_string_manager())
1366     g_browser_process->gl_string_manager()->Initialize();
1367
1368   // Create an instance of GpuModeManager to watch gpu mode pref change.
1369   g_browser_process->gpu_mode_manager();
1370
1371 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1372   // Show the First Run UI if this is the first time Chrome has been run on
1373   // this computer, or we're being compelled to do so by a command line flag.
1374   // Note that this be done _after_ the PrefService is initialized and all
1375   // preferences are registered, since some of the code that the importer
1376   // touches reads preferences.
1377   if (first_run::IsChromeFirstRun()) {
1378     first_run::AutoImport(profile_,
1379                           master_prefs_->homepage_defined,
1380                           master_prefs_->do_import_items,
1381                           master_prefs_->dont_import_items,
1382                           master_prefs_->import_bookmarks_path);
1383
1384     // Note: this can pop the first run consent dialog on linux.
1385     first_run::DoPostImportTasks(profile_,
1386                                  master_prefs_->make_chrome_default_for_user);
1387
1388     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1389       browser_creator_->set_show_main_browser_window(
1390           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1391     } else {
1392       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1393     }
1394   }
1395 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1396
1397 #if defined(OS_WIN)
1398   // Sets things up so that if we crash from this point on, a dialog will
1399   // popup asking the user to restart chrome. It is done this late to avoid
1400   // testing against a bunch of special cases that are taken care early on.
1401   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1402       parsed_command_line());
1403
1404   // Registers Chrome with the Windows Restart Manager, which will restore the
1405   // Chrome session when the computer is restarted after a system update.
1406   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1407   // but should run on startup if extended to handle crashes/hangs/patches.
1408   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1409   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1410     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1411         parsed_command_line());
1412   }
1413
1414   // Verify that the profile is not on a network share and if so prepare to show
1415   // notification to the user.
1416   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1417     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1418         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1419                    profile_->GetPath()));
1420   }
1421 #endif  // defined(OS_WIN)
1422
1423 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1424   // Init the RLZ library. This just binds the dll and schedules a task on the
1425   // file thread to be run sometime later. If this is the first run we record
1426   // the installation event.
1427   PrefService* pref_service = profile_->GetPrefs();
1428   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1429       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1430   // Negative ping delay means to send ping immediately after a first search is
1431   // recorded.
1432   RLZTracker::InitRlzFromProfileDelayed(
1433       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1434       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1435 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1436
1437   // Configure modules that need access to resources.
1438   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1439
1440   // In unittest mode, this will do nothing.  In normal mode, this will create
1441   // the global IntranetRedirectDetector instance, which will promptly go to
1442   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1443   // to see if it should do anything else.
1444   //
1445   // A simpler way of doing all this would be to have some function which could
1446   // give the time elapsed since startup, and simply have this object check that
1447   // when asked to initialize itself, but this doesn't seem to exist.
1448   //
1449   // This can't be created in the BrowserProcessImpl constructor because it
1450   // needs to read prefs that get set after that runs.
1451   browser_process_->intranet_redirect_detector();
1452   GoogleSearchCounter::RegisterForNotifications();
1453
1454 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1455   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1456     base::FilePath path =
1457         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1458     printing::PrintedDocument::set_debug_dump_path(path);
1459   }
1460 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1461
1462   HandleTestParameters(parsed_command_line());
1463   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1464       base::debug::BeingDebugged());
1465
1466   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1467       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1468   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1469       browser_process_->GetApplicationLocale());
1470
1471   // Start watching for hangs during startup. We disarm this hang detector when
1472   // ThreadWatcher takes over or when browser is shutdown or when
1473   // startup_watcher_ is deleted.
1474   metrics::MetricsService::SetExecutionPhase(
1475       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1476       g_browser_process->local_state());
1477   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1478
1479   // On mobile, need for clean shutdown arises only when the application comes
1480   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1481   // http://crbug.com/179143
1482 #if !defined(OS_ANDROID)
1483   // Start watching for a hang.
1484   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1485 #endif  // !defined(OS_ANDROID)
1486
1487 #if defined(ENABLE_PRINT_PREVIEW)
1488   // Create the instance of the cloud print proxy service so that it can launch
1489   // the service process if needed. This is needed because the service process
1490   // might have shutdown because an update was available.
1491   // TODO(torne): this should maybe be done with
1492   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1493   // instead?
1494   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1495 #endif  // defined(ENABLE_PRINT_PREVIEW)
1496
1497   // Start watching all browser threads for responsiveness.
1498   metrics::MetricsService::SetExecutionPhase(
1499       metrics::MetricsService::THREAD_WATCHER_START,
1500       g_browser_process->local_state());
1501   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1502
1503 #if defined(OS_ANDROID)
1504   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1505 #endif  // defined(OS_ANDROID)
1506
1507 #if !defined(DISABLE_NACL)
1508   BrowserThread::PostTask(
1509       BrowserThread::IO,
1510       FROM_HERE,
1511       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1512 #endif  // !defined(DISABLE_NACL)
1513
1514   // Make sure initial prefs are recorded
1515   PrefMetricsService::Factory::GetForProfile(profile_);
1516
1517   PreBrowserStart();
1518
1519   // Instantiate the notification UI manager, as this triggers a perf timer
1520   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1521   // triggering the timer and call that explicitly in the approprate place.
1522   // http://crbug.com/105065.
1523   browser_process_->notification_ui_manager();
1524
1525   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1526   // data source is based on the Component Updater.
1527   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1528
1529   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1530     RegisterComponentsForUpdate();
1531
1532 #if defined(OS_ANDROID)
1533   chrome_variations::VariationsService* variations_service =
1534       browser_process_->variations_service();
1535   if (variations_service) {
1536     // Just initialize the policy prefs service here. Variations seed fetching
1537     // will be initialized when the app enters foreground mode.
1538     variations_service->set_policy_pref_service(profile_->GetPrefs());
1539   }
1540   translate::TranslateDownloadManager::RequestLanguageList(
1541       profile_->GetPrefs());
1542
1543 #else
1544   // Most general initialization is behind us, but opening a
1545   // tab and/or session restore and such is still to be done.
1546   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1547
1548   // We are in regular browser boot sequence. Open initial tabs and enter the
1549   // main message loop.
1550 #if defined(OS_CHROMEOS)
1551   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1552   // them this early as the cryptohome hasn't yet been mounted (which happens
1553   // only once we log in.
1554   std::vector<Profile*> last_opened_profiles;
1555 #else
1556   std::vector<Profile*> last_opened_profiles =
1557       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1558 #endif  // defined(OS_CHROMEOS)
1559
1560   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1561                       base::TimeTicks::Now() - start_time_step2);
1562
1563   // This step is costly and is already measured in
1564   // Startup.StartupBrowserCreator_Start.
1565   bool started = browser_creator_->Start(
1566       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1567   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1568   if (started) {
1569 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1570     // Initialize autoupdate timer. Timer callback costs basically nothing
1571     // when browser is not in persistent mode, so it's OK to let it ride on
1572     // the main thread. This needs to be done here because we don't want
1573     // to start the timer when Chrome is run inside a test harness.
1574     browser_process_->StartAutoupdateTimer();
1575 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1576
1577 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1578     // On Linux, the running exe will be updated if an upgrade becomes
1579     // available while the browser is running.  We need to save the last
1580     // modified time of the exe, so we can compare to determine if there is
1581     // an upgrade while the browser is kept alive by a persistent extension.
1582     upgrade_util::SaveLastModifiedTimeOfExe();
1583 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1584
1585     // Record now as the last successful chrome start.
1586     GoogleUpdateSettings::SetLastRunTime();
1587
1588 #if defined(OS_MACOSX)
1589     // Call Recycle() here as late as possible, before going into the loop
1590     // because Start() will add things to it while creating the main window.
1591     if (parameters().autorelease_pool)
1592       parameters().autorelease_pool->Recycle();
1593 #endif  // defined(OS_MACOSX)
1594
1595     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1596     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1597
1598     // If we're running tests (ui_task is non-null), then we don't want to
1599     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1600     // RequestLanguageList
1601     if (parameters().ui_task == NULL) {
1602       // Request new variations seed information from server.
1603       chrome_variations::VariationsService* variations_service =
1604           browser_process_->variations_service();
1605       if (variations_service) {
1606         variations_service->StartRepeatedVariationsSeedFetch();
1607
1608 #if defined(OS_WIN)
1609         variations_service->StartGoogleUpdateRegistrySync();
1610 #endif  // defined(OS_WIN)
1611       }
1612
1613       translate::TranslateDownloadManager::RequestLanguageList(
1614           profile_->GetPrefs());
1615     }
1616
1617     run_message_loop_ = true;
1618   } else {
1619     run_message_loop_ = false;
1620   }
1621   browser_creator_.reset();
1622
1623 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1624   if (g_browser_process->metrics_service()->reporting_active())
1625     content::StartPowerUsageMonitor();
1626 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1627
1628   process_power_collector_.reset(new ProcessPowerCollector);
1629   process_power_collector_->Initialize();
1630 #endif  // !defined(OS_ANDROID)
1631
1632   PostBrowserStart();
1633
1634   if (parameters().ui_task) {
1635     parameters().ui_task->Run();
1636     delete parameters().ui_task;
1637     run_message_loop_ = false;
1638   }
1639 #if defined(OS_ANDROID)
1640   // We never run the C++ main loop on Android, since the UI thread message
1641   // loop is controlled by the OS, so this is as close as we can get to
1642   // the start of the main loop.
1643   if (result_code_ <= 0) {
1644     RecordBrowserStartupTime();
1645   }
1646 #endif  // defined(OS_ANDROID)
1647
1648 #if !defined(OS_ANDROID)
1649   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1650                       base::TimeTicks::Now() - start_time_step3);
1651 #endif  // !defined(OS_ANDROID)
1652
1653   return result_code_;
1654 }
1655
1656 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1657   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1658 #if defined(OS_ANDROID)
1659   // Chrome on Android does not use default MessageLoop. It has its own
1660   // Android specific MessageLoop
1661   NOTREACHED();
1662   return true;
1663 #else
1664   // Set the result code set in PreMainMessageLoopRun or set above.
1665   *result_code = result_code_;
1666   if (!run_message_loop_)
1667     return true;  // Don't run the default message loop.
1668
1669   // These should be invoked as close to the start of the browser's
1670   // UI thread message loop as possible to get a stable measurement
1671   // across versions.
1672   RecordBrowserStartupTime();
1673
1674   DCHECK(base::MessageLoopForUI::IsCurrent());
1675   base::RunLoop run_loop;
1676
1677   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1678
1679   metrics::MetricsService::SetExecutionPhase(
1680       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1681       g_browser_process->local_state());
1682   run_loop.Run();
1683
1684   return true;
1685 #endif  // defined(OS_ANDROID)
1686 }
1687
1688 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1689   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1690 #if defined(OS_ANDROID)
1691   // Chrome on Android does not use default MessageLoop. It has its own
1692   // Android specific MessageLoop
1693   NOTREACHED();
1694 #else
1695
1696   // Start watching for jank during shutdown. It gets disarmed when
1697   // |shutdown_watcher_| object is destructed.
1698   metrics::MetricsService::SetExecutionPhase(
1699       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1700       g_browser_process->local_state());
1701   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1702
1703   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1704   startup_watcher_->Disarm();
1705
1706   // Remove observers attached to D-Bus clients before DbusThreadManager is
1707   // shut down.
1708   process_power_collector_.reset();
1709
1710   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1711     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1712
1713   // Some tests don't set parameters.ui_task, so they started translate
1714   // language fetch that was never completed so we need to cleanup here
1715   // otherwise it will be done by the destructor in a wrong thread.
1716   TranslateService::Shutdown(parameters().ui_task == NULL);
1717
1718   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1719     process_singleton_->Cleanup();
1720
1721   // Stop all tasks that might run on WatchDogThread.
1722   ThreadWatcherList::StopWatchingAll();
1723
1724   browser_process_->metrics_service()->Stop();
1725
1726   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1727   browser_process_->StartTearDown();
1728 #endif  // defined(OS_ANDROID)
1729 }
1730
1731 void ChromeBrowserMainParts::PostDestroyThreads() {
1732 #if defined(OS_ANDROID)
1733   // On Android, there is no quit/exit. So the browser's main message loop will
1734   // not finish.
1735   NOTREACHED();
1736 #else
1737   browser_process_->PostDestroyThreads();
1738   // browser_shutdown takes care of deleting browser_process, so we need to
1739   // release it.
1740   ignore_result(browser_process_.release());
1741   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1742   master_prefs_.reset();
1743   process_singleton_.reset();
1744   device_event_log::Shutdown();
1745
1746   // We need to do this check as late as possible, but due to modularity, this
1747   // may be the last point in Chrome.  This would be more effective if done at
1748   // a higher level on the stack, so that it is impossible for an early return
1749   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1750   // paths from content/browser/browser_main.
1751   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1752
1753 #if defined(OS_CHROMEOS)
1754   chromeos::CrosSettings::Shutdown();
1755 #endif  // defined(OS_CHROMEOS)
1756 #endif  // defined(OS_ANDROID)
1757 }
1758
1759 // Public members:
1760
1761 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1762   chrome_extra_parts_.push_back(parts);
1763 }