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