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/feature_list.h"
  17 #include "base/files/file_path.h"
  18 #include "base/files/file_util.h"
  19 #include "base/metrics/field_trial.h"
  20 #include "base/metrics/histogram_macros.h"
  21 #include "base/path_service.h"
  22 #include "base/prefs/json_pref_store.h"
  23 #include "base/prefs/pref_registry_simple.h"
  24 #include "base/prefs/pref_service.h"
  25 #include "base/prefs/pref_value_store.h"
  26 #include "base/prefs/scoped_user_pref_update.h"
  27 #include "base/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/gpu/gl_string_manager.h"
  61 #include "chrome/browser/gpu/three_d_api_observer.h"
  62 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  63 #include "chrome/browser/memory/oom_priority_manager.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/nacl_host/nacl_browser_delegate_impl.h"
  68 #include "chrome/browser/net/crl_set_fetcher.h"
  69 #include "chrome/browser/performance_monitor/performance_monitor.h"
  70 #include "chrome/browser/plugins/plugin_prefs.h"
  71 #include "chrome/browser/power/process_power_collector.h"
  72 #include "chrome/browser/pref_service_flags_storage.h"
  73 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  74 #include "chrome/browser/prefs/command_line_pref_store.h"
  75 #include "chrome/browser/prefs/incognito_mode_prefs.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/tracing/navigation_tracing.h"
  85 #include "chrome/browser/translate/translate_service.h"
  86 #include "chrome/browser/ui/app_list/app_list_service.h"
  87 #include "chrome/browser/ui/browser.h"
  88 #include "chrome/browser/ui/browser_finder.h"
  89 #include "chrome/browser/ui/host_desktop.h"
  90 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  91 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  92 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  93 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  94 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  95 #include "chrome/common/channel_info.h"
  96 #include "chrome/common/chrome_constants.h"
  97 #include "chrome/common/chrome_paths.h"
  98 #include "chrome/common/chrome_result_codes.h"
  99 #include "chrome/common/chrome_switches.h"
 100 #include "chrome/common/crash_keys.h"
 101 #include "chrome/common/env_vars.h"
 102 #include "chrome/common/logging_chrome.h"
 103 #include "chrome/common/net/net_resource_provider.h"
 104 #include "chrome/common/pref_names.h"
 105 #include "chrome/common/profiling.h"
 106 #include "chrome/common/variations/variations_util.h"
 107 #include "chrome/grit/generated_resources.h"
 108 #include "chrome/installer/util/google_update_settings.h"
 109 #include "components/component_updater/component_updater_service.h"
 110 #include "components/device_event_log/device_event_log.h"
 111 #include "components/google/core/browser/google_util.h"
 112 #include "components/language_usage_metrics/language_usage_metrics.h"
 113 #include "components/metrics/call_stack_profile_metrics_provider.h"
 114 #include "components/metrics/metrics_service.h"
 115 #include "components/metrics/profiler/tracking_synchronizer.h"
 116 #include "components/nacl/browser/nacl_browser.h"
 117 #include "components/rappor/rappor_service.h"
 118 #include "components/signin/core/common/profile_management_switches.h"
 119 #include "components/startup_metric_utils/startup_metric_utils.h"
 120 #include "components/tracing/tracing_switches.h"
 121 #include "components/translate/content/browser/browser_cld_utils.h"
 122 #include "components/translate/content/common/cld_data_source.h"
 123 #include "components/translate/core/browser/translate_download_manager.h"
 124 #include "components/variations/net/variations_http_header_provider.h"
 125 #include "components/variations/pref_names.h"
 126 #include "components/variations/service/variations_service.h"
 127 #include "components/variations/variations_associated_data.h"
 128 #include "components/variations/variations_switches.h"
 129 #include "components/version_info/version_info.h"
 130 #include "content/public/browser/browser_thread.h"
 131 #include "content/public/browser/notification_observer.h"
 132 #include "content/public/browser/notification_registrar.h"
 133 #include "content/public/browser/notification_service.h"
 134 #include "content/public/browser/notification_types.h"
 135 #include "content/public/browser/power_usage_monitor.h"
 136 #include "content/public/browser/site_instance.h"
 137 #include "content/public/common/content_client.h"
 138 #include "content/public/common/content_switches.h"
 139 #include "content/public/common/main_function_params.h"
 140 #include "grit/platform_locale_settings.h"
 141 #include "media/audio/audio_manager.h"
 142 #include "net/base/net_module.h"
 143 #include "net/cookies/cookie_monster.h"
 144 #include "net/http/http_network_layer.h"
 145 #include "net/http/http_stream_factory.h"
 146 #include "net/url_request/url_request.h"
 147 #include "ui/base/l10n/l10n_util.h"
 148 #include "ui/base/layout.h"
 149 #include "ui/base/resource/resource_bundle.h"
 150 #include "ui/strings/grit/app_locale_settings.h"
 151
 152 #if defined(OS_ANDROID)
 153 #include "chrome/browser/android/dev_tools_discovery_provider_android.h"
 154 #include "chrome/browser/metrics/thread_watcher_android.h"
 155 #include "ui/base/resource/resource_bundle_android.h"
 156 #else
 157 #include "chrome/browser/devtools/chrome_devtools_discovery_provider.h"
 158 #include "chrome/browser/feedback/feedback_profile_observer.h"
 159 #endif  // defined(OS_ANDROID)
 160
 161 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 162 #include "chrome/browser/first_run/upgrade_util_linux.h"
 163 #include "chrome/browser/sxs_linux.h"
 164 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 165
 166 #if defined(OS_CHROMEOS)
 167 #include "chrome/browser/chromeos/settings/cros_settings.h"
 168 #include "chromeos/chromeos_switches.h"
 169 #include "chromeos/settings/cros_settings_names.h"
 170 #endif  // defined(OS_CHROMEOS)
 171
 172 // TODO(port): several win-only methods have been pulled out of this, but
 173 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 174 // other platforms. For now, it's just a stub. This is a serious work in
 175 // progress and should not be taken as an indication of a real refactoring.
 176
 177 #if defined(OS_WIN)
 178 #include "base/environment.h"  // For PreRead experiment.
 179 #include "base/trace_event/trace_event_etw_export_win.h"
 180 #include "base/win/windows_version.h"
 181 #include "chrome/browser/browser_util_win.h"
 182 #include "chrome/browser/chrome_browser_main_win.h"
 183 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 184 #include "chrome/browser/component_updater/caps_installer_win.h"
 185 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 186 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 187 #include "chrome/browser/first_run/upgrade_util_win.h"
 188 #include "chrome/browser/ui/network_profile_bubble.h"
 189 #include "chrome/installer/util/helper.h"
 190 #include "chrome/installer/util/install_util.h"
 191 #include "chrome/installer/util/shell_util.h"
 192 #include "components/browser_watcher/exit_funnel_win.h"
 193 #include "net/base/net_util.h"
 194 #include "ui/base/l10n/l10n_util_win.h"
 195 #include "ui/gfx/win/dpi.h"
 196 #include "ui/shell_dialogs/select_file_dialog.h"
 197 #endif  // defined(OS_WIN)
 198
 199 #if defined(OS_MACOSX)
 200 #include <Security/Security.h>
 201
 202 #include "base/mac/scoped_nsautorelease_pool.h"
 203 #include "chrome/browser/mac/keystone_glue.h"
 204 #endif  // defined(OS_MACOSX)
 205
 206 #if !defined(OS_IOS)
 207 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 208 #endif  // !defined(OS_IOS)
 209
 210 #if !defined(DISABLE_NACL)
 211 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 212 #include "components/nacl/browser/nacl_process_host.h"
 213 #endif  // !defined(DISABLE_NACL)
 214
 215 #if defined(ENABLE_EXTENSIONS)
 216 #include "chrome/browser/extensions/startup_helper.h"
 217 #include "extensions/browser/extension_protocols.h"
 218 #include "extensions/common/features/feature_provider.h"
 219 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 220 #endif  // defined(ENABLE_EXTENSIONS)
 221
 222 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 223 #include "printing/printed_document.h"
 224 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 225
 226 #if defined(ENABLE_RLZ)
 227 #include "chrome/browser/rlz/chrome_rlz_tracker_delegate.h"
 228 #include "components/rlz/rlz_tracker.h"
 229 #endif  // defined(ENABLE_RLZ)
 230
 231 #if defined(ENABLE_WEBRTC)
 232 #include "chrome/browser/media/webrtc_log_util.h"
 233 #endif  // defined(ENABLE_WEBRTC)
 234
 235 #if defined(USE_AURA)
 236 #include "ui/aura/env.h"
 237 #endif  // defined(USE_AURA)
 238
 239 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 240 #include "chrome/browser/chrome_webusb_browser_client.h"
 241 #include "components/webusb/webusb_detector.h"
 242 #endif
 243
 244 using content::BrowserThread;
 245
 246 namespace {
 247
 248 // This function provides some ways to test crash and assertion handling
 249 // behavior of the program.
 250 void HandleTestParameters(const base::CommandLine& command_line) {
 251   // This parameter causes a null pointer crash (crash reporter trigger).
 252   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 253     int* bad_pointer = NULL;
 254     *bad_pointer = 0;
 255   }
 256 }
 257
 258 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 259 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 260                         const std::vector<GURL>& new_tabs) {
 261   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 262        it != new_tabs.end(); ++it) {
 263     if (it->is_valid())
 264       browser_creator->AddFirstRunTab(*it);
 265   }
 266 }
 267 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 268
 269 // Returns the new local state object, guaranteed non-NULL.
 270 // |local_state_task_runner| must be a shutdown-blocking task runner.
 271 PrefService* InitializeLocalState(
 272     base::SequencedTaskRunner* local_state_task_runner,
 273     const base::CommandLine& parsed_command_line) {
 274   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 275
 276   // Load local state.  This includes the application locale so we know which
 277   // locale dll to load.  This also causes local state prefs to be registered.
 278   PrefService* local_state = g_browser_process->local_state();
 279   DCHECK(local_state);
 280
 281 #if defined(OS_WIN)
 282   if (first_run::IsChromeFirstRun()) {
 283     // During first run we read the google_update registry key to find what
 284     // language the user selected when downloading the installer. This
 285     // becomes our default language in the prefs.
 286     // Other platforms obey the system locale.
 287     base::string16 install_lang;
 288     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 289       local_state->SetString(prefs::kApplicationLocale,
 290                              base::UTF16ToASCII(install_lang));
 291     }
 292   }
 293 #endif  // defined(OS_WIN)
 294
 295   // If the local state file for the current profile doesn't exist and the
 296   // parent profile command line flag is present, then we should inherit some
 297   // local state from the parent profile.
 298   // Checking that the local state file for the current profile doesn't exist
 299   // is the most robust way to determine whether we need to inherit or not
 300   // since the parent profile command line flag can be present even when the
 301   // current profile is not a new one, and in that case we do not want to
 302   // inherit and reset the user's setting.
 303   //
 304   // TODO(mnissler): We should probably just instantiate a
 305   // JSONPrefStore here instead of an entire PrefService. Once this is
 306   // addressed, the call to browser_prefs::RegisterLocalState can move
 307   // to chrome_prefs::CreateLocalState.
 308   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 309     base::FilePath local_state_path;
 310     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 311     bool local_state_file_exists = base::PathExists(local_state_path);
 312     if (!local_state_file_exists) {
 313       base::FilePath parent_profile =
 314           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 315       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 316       scoped_ptr<PrefService> parent_local_state(
 317           chrome_prefs::CreateLocalState(
 318               parent_profile,
 319               local_state_task_runner,
 320               g_browser_process->policy_service(),
 321               registry,
 322               false));
 323       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 324       // Right now, we only inherit the locale setting from the parent profile.
 325       local_state->SetString(
 326           prefs::kApplicationLocale,
 327           parent_local_state->GetString(prefs::kApplicationLocale));
 328     }
 329   }
 330
 331 #if defined(OS_CHROMEOS)
 332   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 333     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 334     // Ensure that we start with owner's locale.
 335     if (!owner_locale.empty() &&
 336         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 337         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 338       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 339     }
 340   }
 341 #endif  // defined(OS_CHROMEOS)
 342
 343   return local_state;
 344 }
 345
 346 // Initializes the primary profile, possibly doing some user prompting to pick
 347 // a fallback profile. Returns the newly created profile, or NULL if startup
 348 // should not continue.
 349 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 350                               const base::FilePath& user_data_dir,
 351                               const base::CommandLine& parsed_command_line) {
 352   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 353   TRACK_SCOPED_REGION(
 354       "Startup", "ChromeBrowserMainParts::CreatePrimaryProfile");
 355
 356   base::Time start = base::Time::Now();
 357   if (profiles::IsMultipleProfilesEnabled() &&
 358       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 359     profiles::SetLastUsedProfile(
 360         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 361     // Clear kProfilesLastActive since the user only wants to launch a specific
 362     // profile.
 363     ListPrefUpdate update(g_browser_process->local_state(),
 364                           prefs::kProfilesLastActive);
 365     base::ListValue* profile_list = update.Get();
 366     profile_list->Clear();
 367   }
 368
 369   Profile* profile = NULL;
 370 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 371   // On ChromeOS and Android the ProfileManager will use the same path as the
 372   // one we got passed. GetActiveUserProfile will therefore use the correct path
 373   // automatically.
 374   DCHECK_EQ(user_data_dir.value(),
 375             g_browser_process->profile_manager()->user_data_dir().value());
 376   profile = ProfileManager::GetActiveUserProfile();
 377 #else
 378   base::FilePath profile_path =
 379       GetStartupProfilePath(user_data_dir, parsed_command_line);
 380
 381   // Without NewAvatarMenu, replace guest with any existing profile.
 382   if (!switches::IsNewAvatarMenu() &&
 383       profile_path == ProfileManager::GetGuestProfilePath()) {
 384     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 385         GetPathOfProfileAtIndex(0);
 386   }
 387   profile = g_browser_process->profile_manager()->GetProfile(
 388       profile_path);
 389
 390   // If we're using the --new-profile-management flag and this profile is
 391   // signed out, then we should show the user manager instead. By switching
 392   // the active profile to the guest profile we ensure that no
 393   // browser windows will be opened for the guest profile.
 394   if (switches::IsNewProfileManagement() &&
 395       profile &&
 396       !profile->IsGuestSession()) {
 397     ProfileInfoCache& cache =
 398         g_browser_process->profile_manager()->GetProfileInfoCache();
 399     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 400
 401     if (profile_index != std::string::npos &&
 402         cache.ProfileIsSigninRequiredAtIndex(profile_index)) {
 403       profile = g_browser_process->profile_manager()->GetProfile(
 404           ProfileManager::GetGuestProfilePath());
 405     }
 406   }
 407 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID)
 408   if (profile) {
 409     UMA_HISTOGRAM_LONG_TIMES(
 410         "Startup.CreateFirstProfile", base::Time::Now() - start);
 411     return profile;
 412   }
 413
 414 #if !defined(OS_WIN)
 415   // TODO(port): fix this.  See comments near the definition of
 416   // user_data_dir.  It is better to CHECK-fail here than it is to
 417   // silently exit because of missing code in the above test.
 418   CHECK(profile) << "Cannot get default profile.";
 419 #endif  // !defined(OS_WIN)
 420
 421   return NULL;
 422 }
 423
 424 #if defined(OS_MACOSX)
 425 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 426                           SecKeychainCallbackInfo* info, void* context) {
 427   return noErr;
 428 }
 429 #endif  // defined(OS_MACOSX)
 430
 431 void RegisterComponentsForUpdate() {
 432   component_updater::ComponentUpdateService* cus =
 433       g_browser_process->component_updater();
 434
 435   // Registration can be before or after cus->Start() so it is ok to post
 436   // a task to the UI thread to do registration once you done the necessary
 437   // file IO to know you existing component version.
 438 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 439   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 440   RegisterPepperFlashComponent(cus);
 441   RegisterSwiftShaderComponent(cus);
 442   RegisterWidevineCdmComponent(cus);
 443 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 444
 445 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 446 #if defined(OS_CHROMEOS)
 447   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 448   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 449   // installer when running on Linux. See crbug.com/422121 for more details.
 450   if (!base::SysInfo::IsRunningOnChromeOS())
 451 #endif  // defined(OS_CHROMEOS)
 452     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 453 #endif  // !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 454
 455   // Registration of the CLD Component is a no-op unless the CLD data source has
 456   // been configured to be the "Component" data source.
 457   RegisterCldComponent(cus);
 458
 459   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 460       g_browser_process->supervised_user_whitelist_installer();
 461   whitelist_installer->RegisterComponents();
 462
 463   base::FilePath path;
 464   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 465 #if defined(OS_ANDROID)
 466     // The CRLSet component was enabled for some releases. This code attempts to
 467     // delete it from the local disk of those how may have downloaded it.
 468     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 469 #elif !defined(OS_CHROMEOS)
 470     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 471     // network.
 472     // For Chrome OS this registration is delayed until user login.
 473     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 474     // Registration of the EV Whitelist component here is not necessary for:
 475     // 1. Android: Because it currently does not have the EV indicator.
 476     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 477     RegisterEVWhitelistComponent(cus, path);
 478 #endif  // defined(OS_ANDROID)
 479   }
 480
 481 #if defined(OS_WIN)
 482 #if defined(GOOGLE_CHROME_BUILD)
 483   RegisterSwReporterComponent(cus);
 484 #endif  // defined(GOOGLE_CHROME_BUILD)
 485   RegisterCAPSComponent(cus);
 486 #endif  // defined(OS_WIN)
 487 }
 488
 489 #if !defined(OS_ANDROID)
 490 bool ProcessSingletonNotificationCallback(
 491     const base::CommandLine& command_line,
 492     const base::FilePath& current_directory) {
 493   // Drop the request if the browser process is already in shutdown path.
 494   if (!g_browser_process || g_browser_process->IsShuttingDown()) {
 495 #if defined(OS_WIN)
 496     browser_watcher::ExitFunnel::RecordSingleEvent(
 497         chrome::kBrowserExitCodesRegistryPath,
 498         L"ProcessSingletonIsShuttingDown");
 499 #endif  // defined(OS_WIN)
 500
 501     return false;
 502   }
 503
 504   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 505     std::string start_time_string =
 506         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 507     int64 remote_start_time;
 508     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 509       base::TimeDelta elapsed =
 510           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 511       if (command_line.HasSwitch(switches::kFastStart)) {
 512         UMA_HISTOGRAM_LONG_TIMES(
 513             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 514       } else {
 515         UMA_HISTOGRAM_LONG_TIMES(
 516             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 517       }
 518     }
 519   }
 520
 521   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 522       command_line);
 523
 524   base::FilePath user_data_dir =
 525       g_browser_process->profile_manager()->user_data_dir();
 526   base::FilePath startup_profile_dir =
 527       GetStartupProfilePath(user_data_dir, command_line);
 528
 529   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 530       command_line, current_directory, startup_profile_dir);
 531   return true;
 532 }
 533 #endif  // !defined(OS_ANDROID)
 534
 535 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 536   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 537     std::string port_str =
 538         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 539     int port;
 540     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 541       g_browser_process->CreateDevToolsHttpProtocolHandler(
 542           chrome::HOST_DESKTOP_TYPE_NATIVE,
 543           "127.0.0.1",
 544           static_cast<uint16>(port));
 545     } else {
 546       DLOG(WARNING) << "Invalid http debugger port number " << port;
 547     }
 548   }
 549 }
 550
 551 }  // namespace
 552
 553 namespace chrome_browser {
 554
 555 // This error message is not localized because we failed to load the
 556 // localization data files.
 557 #if defined(OS_WIN)
 558 const char kMissingLocaleDataTitle[] = "Missing File Error";
 559 #endif  // defined(OS_WIN)
 560
 561 #if defined(OS_WIN)
 562 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 563 const char kMissingLocaleDataMessage[] =
 564     "Unable to find locale data files. Please reinstall.";
 565 #endif  // defined(OS_WIN)
 566
 567 }  // namespace chrome_browser
 568
 569 // BrowserMainParts ------------------------------------------------------------
 570
 571 ChromeBrowserMainParts::ChromeBrowserMainParts(
 572     const content::MainFunctionParams& parameters)
 573     : parameters_(parameters),
 574       parsed_command_line_(parameters.command_line),
 575       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 576       startup_watcher_(new StartupTimeBomb()),
 577       shutdown_watcher_(new ShutdownWatcherHelper()),
 578       browser_field_trials_(parameters.command_line),
 579       sampling_profiler_(
 580           base::PlatformThread::CurrentId(),
 581           sampling_profiler_config_.GetSamplingParams(),
 582           metrics::CallStackProfileMetricsProvider::GetProfilerCallback(
 583               metrics::CallStackProfileMetricsProvider::Params(
 584                   metrics::CallStackProfileMetricsProvider::PROCESS_STARTUP,
 585                   false))),
 586       profile_(NULL),
 587       run_message_loop_(true),
 588       notify_result_(ProcessSingleton::PROCESS_NONE),
 589       local_state_(NULL),
 590       restart_last_session_(false) {
 591   if (sampling_profiler_config_.IsProfilerEnabled())
 592     sampling_profiler_.Start();
 593
 594   // If we're running tests (ui_task is non-null).
 595   if (parameters.ui_task)
 596     browser_defaults::enable_help_app = false;
 597
 598   // Chrome disallows cookies by default. All code paths that want to use
 599   // cookies need to go through one of Chrome's URLRequestContexts which have
 600   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 601   net::URLRequest::SetDefaultCookiePolicyToBlock();
 602 }
 603
 604 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 605   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 606     delete chrome_extra_parts_[i];
 607   chrome_extra_parts_.clear();
 608 }
 609
 610 // This will be called after the command-line has been mutated by about:flags
 611 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 612   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 613   // Must initialize metrics after labs have been converted into switches,
 614   // but before field trials are set up (so that client ID is available for
 615   // one-time randomized field trials).
 616
 617   // Initialize FieldTrialList to support FieldTrials that use one-time
 618   // randomization.
 619   metrics::MetricsService* metrics = browser_process_->metrics_service();
 620   field_trial_list_.reset(
 621       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 622
 623   const base::CommandLine* command_line =
 624       base::CommandLine::ForCurrentProcess();
 625   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 626       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 627     base::FieldTrial::EnableBenchmarking();
 628   }
 629
 630   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 631     bool result = chrome_variations::AssociateParamsFromString(
 632         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 633     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 634                   << " list specified.";
 635   }
 636
 637   // Ensure any field trials specified on the command line are initialized.
 638   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 639     std::set<std::string> unforceable_field_trials;
 640 #if defined(OFFICIAL_BUILD)
 641     unforceable_field_trials.insert("SettingsEnforcement");
 642 #endif  // defined(OFFICIAL_BUILD)
 643
 644     // Create field trials without activating them, so that this behaves in a
 645     // consistent manner with field trials created from the server.
 646     bool result = base::FieldTrialList::CreateTrialsFromString(
 647         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 648         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 649         unforceable_field_trials);
 650     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 651                   << " list specified.";
 652   }
 653
 654 #if defined(FIELDTRIAL_TESTING_ENABLED)
 655   if (!command_line->HasSwitch(switches::kDisableFieldTrialTestingConfig) &&
 656       !command_line->HasSwitch(switches::kForceFieldTrials) &&
 657       !command_line->HasSwitch(variations::switches::kVariationsServerURL))
 658     chrome_variations::AssociateDefaultFieldTrialConfig();
 659 #endif  // defined(FIELDTRIAL_TESTING_ENABLED)
 660
 661   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 662     // Create default variation ids which will always be included in the
 663     // X-Client-Data request header.
 664     variations::VariationsHttpHeaderProvider* provider =
 665         variations::VariationsHttpHeaderProvider::GetInstance();
 666     bool result = provider->SetDefaultVariationIds(
 667         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 668     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 669                   << " list specified.";
 670     metrics->AddSyntheticTrialObserver(provider);
 671   }
 672
 673   scoped_ptr<base::FeatureList> feature_list(new base::FeatureList);
 674   feature_list->InitializeFromCommandLine(
 675       command_line->GetSwitchValueASCII(switches::kEnableFeatures),
 676       command_line->GetSwitchValueASCII(switches::kDisableFeatures));
 677
 678   variations::VariationsService* variations_service =
 679       browser_process_->variations_service();
 680   if (variations_service)
 681     variations_service->CreateTrialsFromSeed();
 682
 683   // TODO(asvitkine): Pass |feature_list| to CreateTrialsFromSeed() above.
 684   base::FeatureList::SetInstance(feature_list.Pass());
 685
 686   // This must be called after |local_state_| is initialized.
 687   browser_field_trials_.SetupFieldTrials();
 688
 689   // Enable Navigation Tracing only if a trace upload url is specified.
 690   if (command_line->HasSwitch(switches::kEnableNavigationTracing) &&
 691       command_line->HasSwitch(switches::kTraceUploadURL)) {
 692     tracing::SetupNavigationTracing();
 693   }
 694
 695   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 696   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 697   // Even though base::Bind does AddRef and Release, the object will not be
 698   // deleted after the Task is executed.
 699   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 700
 701   // Now that field trials have been created, initializes metrics recording.
 702   metrics->InitializeMetricsRecordingState();
 703
 704   const version_info::Channel channel = chrome::GetChannel();
 705
 706   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 707   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 708   if (channel == version_info::Channel::UNKNOWN ||
 709       channel == version_info::Channel::CANARY ||
 710       channel == version_info::Channel::DEV) {
 711     media::AudioManager::EnableHangMonitor();
 712   }
 713
 714   // Enable profiler instrumentation depending on the channel.
 715   switch (channel) {
 716     case version_info::Channel::UNKNOWN:
 717     case version_info::Channel::CANARY:
 718       tracked_objects::ScopedTracker::Enable();
 719       break;
 720
 721     case version_info::Channel::DEV:
 722     case version_info::Channel::BETA:
 723     case version_info::Channel::STABLE:
 724       // Don't enable instrumentation.
 725       break;
 726   }
 727
 728   // Register a synthetic field trial for the sampling profiler configuration
 729   // that was already chosen.
 730   sampling_profiler_config_.RegisterSyntheticFieldTrial();
 731 }
 732
 733 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 734
 735 void ChromeBrowserMainParts::StartMetricsRecording() {
 736   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 737
 738   g_browser_process->metrics_service()->CheckForClonedInstall(
 739       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 740
 741   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 742 }
 743
 744 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 745   // Don't record any metrics if UI was displayed before this point e.g.
 746   // warning dialogs.
 747   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 748     return;
 749
 750   bool is_first_run = false;
 751 #if !defined(OS_ANDROID)
 752   // On Android, first run is handled in Java code, and the C++ side of Chrome
 753   // doesn't know if this is the first run. This will cause some inaccuracy in
 754   // the UMA statistics, but this should be minor (first runs are rare).
 755   is_first_run = first_run::IsChromeFirstRun();
 756 #endif  // defined(OS_ANDROID)
 757
 758   // Record collected startup metrics.
 759   startup_metric_utils::RecordBrowserMainMessageLoopStart(base::Time::Now(),
 760                                                           is_first_run);
 761 }
 762
 763 // -----------------------------------------------------------------------------
 764 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 765
 766 #if defined(OS_WIN)
 767 #define DLLEXPORT __declspec(dllexport)
 768
 769 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 770 extern "C" {
 771 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 772 }
 773
 774 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 775   // Need an instance of AtExitManager to handle singleton creations and
 776   // deletions.  We need this new instance because, the old instance created
 777   // in ChromeMain() got destructed when the function returned.
 778   base::AtExitManager exit_manager;
 779   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 780 }
 781 #endif
 782
 783 // content::BrowserMainParts implementation ------------------------------------
 784
 785 void ChromeBrowserMainParts::PreEarlyInitialization() {
 786   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 787   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 788     chrome_extra_parts_[i]->PreEarlyInitialization();
 789 }
 790
 791 void ChromeBrowserMainParts::PostEarlyInitialization() {
 792   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 793   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 794     chrome_extra_parts_[i]->PostEarlyInitialization();
 795 }
 796
 797 void ChromeBrowserMainParts::ToolkitInitialized() {
 798   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 799   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 800     chrome_extra_parts_[i]->ToolkitInitialized();
 801 }
 802
 803 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 804   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 805
 806   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 807     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 808 }
 809
 810 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 811   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 812
 813   // device_event_log must be initialized after the message loop. Calls to
 814   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 815   // platforms (e.g. chromeos) may have already initialized this.
 816   if (!device_event_log::IsInitialized())
 817     device_event_log::Initialize(0 /* default max entries */);
 818
 819   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 820     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 821 }
 822
 823 int ChromeBrowserMainParts::PreCreateThreads() {
 824   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 825   result_code_ = PreCreateThreadsImpl();
 826
 827   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 828 #if !defined(OS_ANDROID)
 829     // These members must be initialized before exiting this function normally.
 830     DCHECK(master_prefs_.get());
 831     DCHECK(browser_creator_.get());
 832 #endif  // !defined(OS_ANDROID)
 833     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 834       chrome_extra_parts_[i]->PreCreateThreads();
 835   }
 836
 837   return result_code_;
 838 }
 839
 840 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 841   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 842   run_message_loop_ = false;
 843 #if !defined(OS_ANDROID)
 844   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 845 #endif  // !defined(OS_ANDROID)
 846   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 847     return chrome::RESULT_CODE_MISSING_DATA;
 848
 849   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 850   MediaCaptureDevicesDispatcher::GetInstance();
 851
 852   // Android's first run is done in Java instead of native.
 853 #if !defined(OS_ANDROID)
 854   process_singleton_.reset(new ChromeProcessSingleton(
 855       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 856
 857   // Cache first run state early.
 858   first_run::IsChromeFirstRun();
 859 #endif  // !defined(OS_ANDROID)
 860
 861   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 862       JsonPrefStore::GetTaskRunnerForFile(
 863           base::FilePath(chrome::kLocalStorePoolName),
 864           BrowserThread::GetBlockingPool());
 865
 866   {
 867     TRACE_EVENT0("startup",
 868       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 869     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 870                                                   parsed_command_line()));
 871   }
 872
 873   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 874     TRACE_EVENT0("startup",
 875         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 876     // User wants to override default tracking status.
 877     std::string flag =
 878       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 879     // Default to basic profiling (no parent child support).
 880     tracked_objects::ThreadData::Status status =
 881           tracked_objects::ThreadData::PROFILING_ACTIVE;
 882     if (flag.compare("0") != 0)
 883       status = tracked_objects::ThreadData::DEACTIVATED;
 884     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 885   }
 886
 887   local_state_ = InitializeLocalState(
 888       local_state_task_runner.get(), parsed_command_line());
 889
 890 #if !defined(OS_ANDROID)
 891   // These members must be initialized before returning from this function.
 892   master_prefs_.reset(new first_run::MasterPrefs);
 893   // Android doesn't use StartupBrowserCreator.
 894   browser_creator_.reset(new StartupBrowserCreator);
 895   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 896   chrome::UMABrowsingActivityObserver::Init();
 897 #endif  // !defined(OS_ANDROID)
 898
 899 #if !defined(OS_CHROMEOS)
 900   // Convert active labs into switches. This needs to be done before
 901   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 902   // affected by experiment flags (--touch-optimized-ui in particular).
 903   // On ChromeOS system level flags are applied from the device settings from
 904   // the session manager.
 905   {
 906     TRACE_EVENT0("startup",
 907         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 908     about_flags::PrefServiceFlagsStorage flags_storage_(
 909         g_browser_process->local_state());
 910     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 911                                         base::CommandLine::ForCurrentProcess(),
 912                                         about_flags::kAddSentinels);
 913   }
 914 #endif  // !defined(OS_CHROMEOS)
 915
 916 #if defined(OS_WIN)
 917   // This is needed to enable ETW exporting when requested in about:flags.
 918   // Normally, we enable it in ContentMainRunnerImpl::Initialize when the flag
 919   // is present on the command line but flags in about:flags are converted only
 920   // after this function runs. Note that this starts exporting later which
 921   // affects tracing the browser startup. Also, this is only relevant for the
 922   // browser process, as other processes will get all the flags on their command
 923   // line regardless of the origin (command line or about:flags).
 924   if (parsed_command_line().HasSwitch(switches::kTraceExportEventsToETW))
 925     base::trace_event::TraceEventETWExport::EnableETWExport();
 926 #endif  // OS_WIN
 927
 928   local_state_->UpdateCommandLinePrefStore(
 929       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 930
 931   // Reset the command line in the crash report details, since we may have
 932   // just changed it to include experiments.
 933   crash_keys::SetSwitchesFromCommandLine(
 934       base::CommandLine::ForCurrentProcess());
 935
 936   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 937   // needed when loading the MainMenu.nib and the language doesn't depend on
 938   // anything since it comes from Cocoa.
 939 #if defined(OS_MACOSX)
 940   std::string locale =
 941       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 942   browser_process_->SetApplicationLocale(locale);
 943 #else
 944   const std::string locale =
 945       local_state_->GetString(prefs::kApplicationLocale);
 946
 947   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 948   // method InitSharedInstance is ignored.
 949
 950   TRACE_EVENT_BEGIN0("startup",
 951       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 952   const std::string loaded_locale =
 953       ui::ResourceBundle::InitSharedInstanceWithLocale(
 954           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 955   TRACE_EVENT_END0("startup",
 956       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 957
 958   if (loaded_locale.empty() &&
 959       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 960     ShowMissingLocaleMessageBox();
 961     return chrome::RESULT_CODE_MISSING_DATA;
 962   }
 963   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 964   browser_process_->SetApplicationLocale(loaded_locale);
 965
 966   {
 967     TRACE_EVENT0("startup",
 968         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 969     base::FilePath resources_pack_path;
 970     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 971 #if defined(OS_ANDROID)
 972     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 973 #else
 974     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 975         resources_pack_path, ui::SCALE_FACTOR_NONE);
 976 #endif  // defined(OS_ANDROID)
 977   }
 978 #endif  // defined(OS_MACOSX)
 979
 980   // Android does first run in Java instead of native.
 981   // Chrome OS has its own out-of-box-experience code.
 982 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 983   // On first run, we need to process the predictor preferences before the
 984   // browser's profile_manager object is created, but after ResourceBundle
 985   // is initialized.
 986   if (first_run::IsChromeFirstRun()) {
 987     first_run::ProcessMasterPreferencesResult pmp_result =
 988         first_run::ProcessMasterPreferences(user_data_dir_,
 989                                             master_prefs_.get());
 990     if (pmp_result == first_run::EULA_EXIT_NOW)
 991       return chrome::RESULT_CODE_EULA_REFUSED;
 992
 993     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 994         !parsed_command_line().HasSwitch(switches::kAppId) &&
 995         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 996       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 997     }
 998
 999     // TODO(macourteau): refactor preferences that are copied from
1000     // master_preferences into local_state, as a "local_state" section in
1001     // master preferences. If possible, a generic solution would be preferred
1002     // over a copy one-by-one of specific preferences. Also see related TODO
1003     // in first_run.h.
1004
1005     // Store the initial VariationsService seed in local state, if it exists
1006     // in master prefs.
1007     if (!master_prefs_->variations_seed.empty() ||
1008         !master_prefs_->compressed_variations_seed.empty()) {
1009       if (!master_prefs_->variations_seed.empty()) {
1010         local_state_->SetString(variations::prefs::kVariationsSeed,
1011                                 master_prefs_->variations_seed);
1012       }
1013       if (!master_prefs_->compressed_variations_seed.empty()) {
1014         local_state_->SetString(variations::prefs::kVariationsCompressedSeed,
1015                                 master_prefs_->compressed_variations_seed);
1016       }
1017       if (!master_prefs_->variations_seed_signature.empty()) {
1018         local_state_->SetString(variations::prefs::kVariationsSeedSignature,
1019                                 master_prefs_->variations_seed_signature);
1020       }
1021       // Set the variation seed date to the current system time. If the user's
1022       // clock is incorrect, this may cause some field trial expiry checks to
1023       // not do the right thing until the next seed update from the server,
1024       // when this value will be updated.
1025       local_state_->SetInt64(variations::prefs::kVariationsSeedDate,
1026                              base::Time::Now().ToInternalValue());
1027     }
1028
1029     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
1030       local_state_->SetString(
1031           prefs::kBrowserSuppressDefaultBrowserPrompt,
1032           master_prefs_->suppress_default_browser_prompt_for_version);
1033     }
1034
1035 #if defined(OS_WIN)
1036     if (!master_prefs_->welcome_page_on_os_upgrade_enabled)
1037       local_state_->SetBoolean(prefs::kWelcomePageOnOSUpgradeEnabled, false);
1038 #endif
1039   }
1040 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1041
1042 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1043   // Set the product channel for crash reports.
1044   base::debug::SetCrashKeyValue(crash_keys::kChannel,
1045                                 chrome::GetChannelString());
1046 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1047
1048   // Initialize tracking synchronizer system.
1049   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
1050       make_scoped_ptr(new base::DefaultTickClock()));
1051
1052 #if defined(OS_MACOSX)
1053   // Get the Keychain API to register for distributed notifications on the main
1054   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
1055   // which doesn't. This ensures those notifications will get delivered
1056   // properly. See issue 37766.
1057   // (Note that the callback mask here is empty. I don't want to register for
1058   // any callbacks, I just want to initialize the mechanism.)
1059   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1060 #endif  // defined(OS_MACOSX)
1061
1062 #if defined(OS_CHROMEOS)
1063   // Must be done after g_browser_process is constructed, before
1064   // SetupMetricsAndFieldTrials().
1065   chromeos::CrosSettings::Initialize();
1066 #endif  // defined(OS_CHROMEOS)
1067
1068   // Now the command line has been mutated based on about:flags, we can setup
1069   // metrics and initialize field trials. The field trials are needed by
1070   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1071   SetupMetricsAndFieldTrials();
1072
1073   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1074   browser_process_->PreCreateThreads();
1075
1076   return content::RESULT_CODE_NORMAL_EXIT;
1077 }
1078
1079 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1080   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1081   TRACK_SCOPED_REGION(
1082       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1083
1084   result_code_ = PreMainMessageLoopRunImpl();
1085
1086   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1087     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1088 }
1089
1090 // PreMainMessageLoopRun calls these extra stages in the following order:
1091 //  PreMainMessageLoopRunImpl()
1092 //   ... initial setup, including browser_process_ setup.
1093 //   PreProfileInit()
1094 //   ... additional setup, including CreateProfile()
1095 //   PostProfileInit()
1096 //   ... additional setup
1097 //   PreBrowserStart()
1098 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1099 //   PostBrowserStart()
1100
1101 void ChromeBrowserMainParts::PreProfileInit() {
1102   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1103
1104   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1105     chrome_extra_parts_[i]->PreProfileInit();
1106
1107 #if !defined(OS_ANDROID)
1108   // Initialize the feedback uploader so it can setup notifications for profile
1109   // creation.
1110   feedback::FeedbackProfileObserver::Initialize();
1111
1112   // Ephemeral profiles may have been left behind if the browser crashed.
1113   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1114 #endif  // !defined(OS_ANDROID)
1115
1116 #if defined(ENABLE_EXTENSIONS)
1117   javascript_dialog_extensions_client::InstallClient();
1118 #endif  // defined(ENABLE_EXTENSIONS)
1119
1120 #if !defined(OS_IOS)
1121   InstallChromeJavaScriptNativeDialogFactory();
1122 #endif  // !defined(OS_IOS)
1123 }
1124
1125 void ChromeBrowserMainParts::PostProfileInit() {
1126   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1127
1128 #if defined(OS_ANDROID)
1129   DevToolsDiscoveryProviderAndroid::Install();
1130 #else
1131   ChromeDevToolsDiscoveryProvider::Install();
1132 #endif  // defined(OS_ANDROID)
1133
1134   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1135   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1136     chrome_extra_parts_[i]->PostProfileInit();
1137 }
1138
1139 void ChromeBrowserMainParts::PreBrowserStart() {
1140   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1141   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1142     chrome_extra_parts_[i]->PreBrowserStart();
1143
1144   three_d_observer_.reset(new ThreeDAPIObserver());
1145
1146   // Start the out-of-memory priority manager here so that we give the most
1147   // amount of time for the other services to start up before we start
1148   // adjusting the oom priority.
1149   //
1150   // On CrOS, it is always enabled. On other platforms, it's behind a flag for
1151   // now.
1152 #if defined(OS_CHROMEOS)
1153   g_browser_process->GetOomPriorityManager()->Start(false);
1154 #elif defined(OS_WIN) || defined(OS_MACOSX)
1155   const std::string group_name =
1156       base::FieldTrialList::FindFullName("AutomaticTabDiscarding");
1157   if (parsed_command_line().HasSwitch(switches::kEnableTabDiscarding) ||
1158       base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE)) {
1159     bool enabled_once = base::StartsWith(group_name, "Enabled_Once",
1160                                          base::CompareCase::SENSITIVE);
1161     g_browser_process->GetOomPriorityManager()->Start(enabled_once);
1162   }
1163 #endif
1164 }
1165
1166 void ChromeBrowserMainParts::PostBrowserStart() {
1167   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1168   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1169     chrome_extra_parts_[i]->PostBrowserStart();
1170 #if !defined(OS_ANDROID)
1171   // Allow ProcessSingleton to process messages.
1172   process_singleton_->Unlock();
1173 #endif  // !defined(OS_ANDROID)
1174 #if defined(ENABLE_WEBRTC)
1175   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1176   // to reduce the impact on startup time.
1177   BrowserThread::PostDelayedTask(
1178       BrowserThread::UI,
1179       FROM_HERE,
1180       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1181       base::TimeDelta::FromMinutes(1));
1182 #endif  // defined(ENABLE_WEBRTC)
1183
1184 #if !defined(OS_ANDROID) && !defined(OS_IOS)
1185   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1186           switches::kEnableWebUsbNotifications)) {
1187     webusb_browser_client_.reset(new ChromeWebUsbBrowserClient());
1188     webusb_detector_.reset(
1189         new webusb::WebUsbDetector(webusb_browser_client_.get()));
1190   }
1191 #endif
1192
1193   // At this point, StartupBrowserCreator::Start has run creating initial
1194   // browser windows and tabs, but no progress has been made in loading
1195   // content as the main message loop hasn't started processing tasks yet.
1196   // We setup to observe to the initial page load here to defer running
1197   // task posted via PostAfterStartupTask until its complete.
1198   AfterStartupTaskUtils::StartMonitoringStartup();
1199 }
1200
1201 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1202   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1203   TRACK_SCOPED_REGION(
1204       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1205
1206   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1207   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1208
1209 #if defined(OS_WIN)
1210   // Windows parental controls calls can be slow, so we do an early init here
1211   // that calculates this value off of the UI thread.
1212   IncognitoModePrefs::InitializePlatformParentalControls();
1213 #endif
1214
1215 #if defined(ENABLE_EXTENSIONS)
1216   if (!variations::GetVariationParamValue(
1217       "LightSpeed", "EarlyInitStartup").empty()) {
1218     // Try to compute this early on another thread so that we don't spend time
1219     // during profile load initializing the extensions APIs.
1220     BrowserThread::PostTask(
1221         BrowserThread::FILE_USER_BLOCKING,
1222         FROM_HERE,
1223         base::Bind(
1224             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1225   }
1226 #endif
1227
1228   // Android updates the metrics service dynamically depending on whether the
1229   // application is in the foreground or not. Do not start here.
1230 #if !defined(OS_ANDROID)
1231   // Now that the file thread has been started, start recording.
1232   StartMetricsRecording();
1233 #endif  // !defined(OS_ANDROID)
1234
1235   if (!base::debug::BeingDebugged()) {
1236     // Create watchdog thread after creating all other threads because it will
1237     // watch the other threads and they must be running.
1238     browser_process_->watchdog_thread();
1239   }
1240
1241   // Do any initializating in the browser process that requires all threads
1242   // running.
1243   browser_process_->PreMainMessageLoopRun();
1244
1245   // Record last shutdown time into a histogram.
1246   browser_shutdown::ReadLastShutdownInfo();
1247
1248 #if defined(OS_WIN)
1249   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1250   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1251   // upgrade/uninstall happen separately.
1252   bool already_running = browser_util::IsBrowserAlreadyRunning();
1253
1254   // If the command line specifies 'uninstall' then we need to work here
1255   // unless we detect another chrome browser running.
1256   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1257     return DoUninstallTasks(already_running);
1258   }
1259
1260   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1261       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1262     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1263         parsed_command_line_);
1264   }
1265
1266   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1267       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1268 #endif  // defined(OS_WIN)
1269
1270   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1271     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1272         prefs::kDefaultBrowserSettingEnabled);
1273     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1274         prefs::kDefaultBrowserSettingEnabled)) {
1275       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1276     }
1277
1278     return ShellIntegration::SetAsDefaultBrowser() ?
1279         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1280         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1281   }
1282
1283 #if defined(USE_AURA)
1284   // Make sure aura::Env has been initialized.
1285   CHECK(aura::Env::GetInstance());
1286 #endif  // defined(USE_AURA)
1287
1288   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1289 #if !defined(OS_ANDROID)
1290   // If the command line specifies --pack-extension, attempt the pack extension
1291   // startup action and exit.
1292   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1293     extensions::StartupHelper extension_startup_helper;
1294     if (extension_startup_helper.PackExtension(parsed_command_line()))
1295       return content::RESULT_CODE_NORMAL_EXIT;
1296     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1297   }
1298
1299   // When another process is running, use that process instead of starting a
1300   // new one. NotifyOtherProcess will currently give the other process up to
1301   // 20 seconds to respond. Note that this needs to be done before we attempt
1302   // to read the profile.
1303   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1304   switch (notify_result_) {
1305     case ProcessSingleton::PROCESS_NONE:
1306       // No process already running, fall through to starting a new one.
1307       break;
1308
1309     case ProcessSingleton::PROCESS_NOTIFIED:
1310 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1311       // On POSIX systems, print a message notifying the process is running.
1312       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1313           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1314 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1315
1316       // Having a differentiated return type for testing allows for tests to
1317       // verify proper handling of some switches. When not testing, stick to
1318       // the standard Unix convention of returning zero when things went as
1319       // expected.
1320       if (parsed_command_line().HasSwitch(switches::kTestType))
1321         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1322       return content::RESULT_CODE_NORMAL_EXIT;
1323
1324     case ProcessSingleton::PROFILE_IN_USE:
1325       return chrome::RESULT_CODE_PROFILE_IN_USE;
1326
1327     case ProcessSingleton::LOCK_ERROR:
1328       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1329                     "directory. This means that running multiple instances "
1330                     "would start multiple browser processes rather than "
1331                     "opening a new window in the existing process. Aborting "
1332                     "now to avoid profile corruption.";
1333       return chrome::RESULT_CODE_PROFILE_IN_USE;
1334
1335     default:
1336       NOTREACHED();
1337   }
1338 #endif  // !defined(OS_ANDROID)
1339
1340   // Handle special early return paths (which couldn't be processed even earlier
1341   // as they require the process singleton to be held) first.
1342
1343   std::string try_chrome =
1344       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1345   if (!try_chrome.empty()) {
1346 #if defined(OS_WIN)
1347     // Setup.exe has determined that we need to run a retention experiment
1348     // and has lauched chrome to show the experiment UI. It is guaranteed that
1349     // no other Chrome is currently running as the process singleton was
1350     // sucessfully grabbed above.
1351     int try_chrome_int;
1352     base::StringToInt(try_chrome, &try_chrome_int);
1353     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1354         try_chrome_int,
1355         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1356                    base::Unretained(process_singleton_.get())));
1357     if (answer == TryChromeDialogView::NOT_NOW)
1358       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1359     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1360       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1361     // At this point the user is willing to try chrome again.
1362     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1363       // Only set in the unattended case, the interactive case is Windows 8.
1364       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1365           ShellIntegration::SET_DEFAULT_UNATTENDED)
1366         ShellIntegration::SetAsDefaultBrowser();
1367     }
1368 #else
1369     // We don't support retention experiments on Mac or Linux.
1370     return content::RESULT_CODE_NORMAL_EXIT;
1371 #endif  // defined(OS_WIN)
1372   }
1373
1374 #if defined(OS_WIN)
1375   // Do the tasks if chrome has been upgraded while it was last running.
1376   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1377     return content::RESULT_CODE_NORMAL_EXIT;
1378
1379   // Check if there is any machine level Chrome installed on the current
1380   // machine. If yes and the current Chrome process is user level, we do not
1381   // allow the user level Chrome to run. So we notify the user and uninstall
1382   // user level Chrome.
1383   // Note this check needs to happen here (after the process singleton was
1384   // obtained but before potentially creating the first run sentinel).
1385   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1386     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1387 #endif  // defined(OS_WIN)
1388
1389 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1390   if (sxs_linux::ShouldMigrateUserDataDir())
1391     return sxs_linux::MigrateUserDataDir();
1392 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1393
1394   // Desktop construction occurs here, (required before profile creation).
1395   PreProfileInit();
1396
1397   // Profile creation ----------------------------------------------------------
1398
1399   metrics::MetricsService::SetExecutionPhase(
1400       metrics::MetricsService::CREATE_PROFILE,
1401       g_browser_process->local_state());
1402
1403   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1404                       base::TimeTicks::Now() - start_time_step1);
1405
1406   // This step is costly and is already measured in Startup.CreateFirstProfile
1407   // and more directly Profile.CreateAndInitializeProfile.
1408   profile_ = CreatePrimaryProfile(parameters(),
1409                                   user_data_dir_,
1410                                   parsed_command_line());
1411   if (!profile_)
1412     return content::RESULT_CODE_NORMAL_EXIT;
1413
1414 #if !defined(OS_ANDROID)
1415   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1416   // The first run sentinel must be created after the process singleton was
1417   // grabbed and no early return paths were otherwise hit above.
1418   first_run::CreateSentinelIfNeeded();
1419 #endif  // !defined(OS_ANDROID)
1420
1421 #if defined(ENABLE_BACKGROUND)
1422   // Autoload any profiles which are running background apps.
1423   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1424   browser_process_->profile_manager()->AutoloadProfiles();
1425 #endif  // defined(ENABLE_BACKGROUND)
1426   // Post-profile init ---------------------------------------------------------
1427
1428   TranslateService::Initialize();
1429
1430   // Needs to be done before PostProfileInit, since login manager on CrOS is
1431   // called inside PostProfileInit.
1432   content::WebUIControllerFactory::RegisterFactory(
1433       ChromeWebUIControllerFactory::GetInstance());
1434
1435   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1436   // So make sure to create it before that.
1437 #if !defined(DISABLE_NACL)
1438   NaClBrowserDelegateImpl* delegate =
1439       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1440   nacl::NaClBrowser::SetDelegate(delegate);
1441 #endif  // !defined(DISABLE_NACL)
1442
1443   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1444   // (requires supporting early exit).
1445   PostProfileInit();
1446
1447   // Retrieve cached GL strings from local state and use them for GPU
1448   // blacklist decisions.
1449   if (g_browser_process->gl_string_manager())
1450     g_browser_process->gl_string_manager()->Initialize();
1451
1452   // Create an instance of GpuModeManager to watch gpu mode pref change.
1453   g_browser_process->gpu_mode_manager();
1454
1455 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1456   // Show the First Run UI if this is the first time Chrome has been run on
1457   // this computer, or we're being compelled to do so by a command line flag.
1458   // Note that this be done _after_ the PrefService is initialized and all
1459   // preferences are registered, since some of the code that the importer
1460   // touches reads preferences.
1461   if (first_run::IsChromeFirstRun()) {
1462     first_run::AutoImport(profile_,
1463                           master_prefs_->homepage_defined,
1464                           master_prefs_->do_import_items,
1465                           master_prefs_->dont_import_items,
1466                           master_prefs_->import_bookmarks_path);
1467
1468     // Note: this can pop the first run consent dialog on linux.
1469     first_run::DoPostImportTasks(profile_,
1470                                  master_prefs_->make_chrome_default_for_user);
1471
1472     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1473       browser_creator_->set_show_main_browser_window(
1474           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1475     } else {
1476       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1477     }
1478   }
1479 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1480
1481 #if defined(OS_WIN)
1482   // Sets things up so that if we crash from this point on, a dialog will
1483   // popup asking the user to restart chrome. It is done this late to avoid
1484   // testing against a bunch of special cases that are taken care early on.
1485   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1486       parsed_command_line());
1487
1488   // Registers Chrome with the Windows Restart Manager, which will restore the
1489   // Chrome session when the computer is restarted after a system update.
1490   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1491   // but should run on startup if extended to handle crashes/hangs/patches.
1492   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1493   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1494     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1495         parsed_command_line());
1496   }
1497
1498   // Verify that the profile is not on a network share and if so prepare to show
1499   // notification to the user.
1500   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1501     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1502         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1503                    profile_->GetPath()));
1504   }
1505 #endif  // defined(OS_WIN)
1506
1507 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1508   // Init the RLZ library. This just binds the dll and schedules a task on the
1509   // file thread to be run sometime later. If this is the first run we record
1510   // the installation event.
1511   PrefService* pref_service = profile_->GetPrefs();
1512   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1513       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1514   // Negative ping delay means to send ping immediately after a first search is
1515   // recorded.
1516   rlz::RLZTracker::SetRlzDelegate(
1517       make_scoped_ptr(new ChromeRLZTrackerDelegate));
1518   rlz::RLZTracker::InitRlzDelayed(
1519       first_run::IsChromeFirstRun(), ping_delay < 0,
1520       base::TimeDelta::FromMilliseconds(abs(ping_delay)),
1521       ChromeRLZTrackerDelegate::IsGoogleDefaultSearch(profile_),
1522       ChromeRLZTrackerDelegate::IsGoogleHomepage(profile_),
1523       ChromeRLZTrackerDelegate::IsGoogleInStartpages(profile_));
1524 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1525
1526   // Configure modules that need access to resources.
1527   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1528
1529   // In unittest mode, this will do nothing.  In normal mode, this will create
1530   // the global IntranetRedirectDetector instance, which will promptly go to
1531   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1532   // to see if it should do anything else.
1533   //
1534   // A simpler way of doing all this would be to have some function which could
1535   // give the time elapsed since startup, and simply have this object check that
1536   // when asked to initialize itself, but this doesn't seem to exist.
1537   //
1538   // This can't be created in the BrowserProcessImpl constructor because it
1539   // needs to read prefs that get set after that runs.
1540   browser_process_->intranet_redirect_detector();
1541
1542 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1543   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1544     base::FilePath path =
1545         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1546     printing::PrintedDocument::set_debug_dump_path(path);
1547   }
1548 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1549
1550   HandleTestParameters(parsed_command_line());
1551   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1552       base::debug::BeingDebugged());
1553
1554   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1555       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1556   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1557       browser_process_->GetApplicationLocale());
1558
1559   // Start watching for hangs during startup. We disarm this hang detector when
1560   // ThreadWatcher takes over or when browser is shutdown or when
1561   // startup_watcher_ is deleted.
1562   metrics::MetricsService::SetExecutionPhase(
1563       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1564       g_browser_process->local_state());
1565   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1566
1567   // On mobile, need for clean shutdown arises only when the application comes
1568   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1569   // http://crbug.com/179143
1570 #if !defined(OS_ANDROID)
1571   // Start watching for a hang.
1572   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1573 #endif  // !defined(OS_ANDROID)
1574
1575 #if defined(ENABLE_PRINT_PREVIEW)
1576   // Create the instance of the cloud print proxy service so that it can launch
1577   // the service process if needed. This is needed because the service process
1578   // might have shutdown because an update was available.
1579   // TODO(torne): this should maybe be done with
1580   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1581   // instead?
1582   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1583 #endif  // defined(ENABLE_PRINT_PREVIEW)
1584
1585   // Start watching all browser threads for responsiveness.
1586   metrics::MetricsService::SetExecutionPhase(
1587       metrics::MetricsService::THREAD_WATCHER_START,
1588       g_browser_process->local_state());
1589   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1590
1591 #if defined(OS_ANDROID)
1592   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1593 #endif  // defined(OS_ANDROID)
1594
1595 #if !defined(DISABLE_NACL)
1596   BrowserThread::PostTask(
1597       BrowserThread::IO,
1598       FROM_HERE,
1599       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1600 #endif  // !defined(DISABLE_NACL)
1601
1602   // Make sure initial prefs are recorded
1603   PrefMetricsService::Factory::GetForProfile(profile_);
1604
1605   PreBrowserStart();
1606
1607   // Instantiate the notification UI manager, as this triggers a perf timer
1608   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1609   // triggering the timer and call that explicitly in the approprate place.
1610   // http://crbug.com/105065.
1611   browser_process_->notification_ui_manager();
1612
1613   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1614   // data source is based on the Component Updater.
1615   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1616
1617   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1618     RegisterComponentsForUpdate();
1619
1620 #if defined(OS_ANDROID)
1621   variations::VariationsService* variations_service =
1622       browser_process_->variations_service();
1623   if (variations_service) {
1624     // Just initialize the policy prefs service here. Variations seed fetching
1625     // will be initialized when the app enters foreground mode.
1626     variations_service->set_policy_pref_service(profile_->GetPrefs());
1627   }
1628   translate::TranslateDownloadManager::RequestLanguageList(
1629       profile_->GetPrefs());
1630
1631 #else
1632   // Most general initialization is behind us, but opening a
1633   // tab and/or session restore and such is still to be done.
1634   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1635
1636   // We are in regular browser boot sequence. Open initial tabs and enter the
1637   // main message loop.
1638   std::vector<Profile*> last_opened_profiles;
1639 #if !defined(OS_CHROMEOS)
1640   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1641   // them this early as the cryptohome hasn't yet been mounted (which happens
1642   // only once we log in).
1643   last_opened_profiles =
1644       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1645 #endif  // defined(OS_CHROMEOS)
1646
1647   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1648                       base::TimeTicks::Now() - start_time_step2);
1649
1650   // This step is costly and is already measured in
1651   // Startup.StartupBrowserCreator_Start.
1652   const bool started = browser_creator_->Start(
1653       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1654   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1655   if (started) {
1656 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1657     // Initialize autoupdate timer. Timer callback costs basically nothing
1658     // when browser is not in persistent mode, so it's OK to let it ride on
1659     // the main thread. This needs to be done here because we don't want
1660     // to start the timer when Chrome is run inside a test harness.
1661     browser_process_->StartAutoupdateTimer();
1662 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1663
1664 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1665     // On Linux, the running exe will be updated if an upgrade becomes
1666     // available while the browser is running.  We need to save the last
1667     // modified time of the exe, so we can compare to determine if there is
1668     // an upgrade while the browser is kept alive by a persistent extension.
1669     upgrade_util::SaveLastModifiedTimeOfExe();
1670 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1671
1672     // Record now as the last successful chrome start.
1673     GoogleUpdateSettings::SetLastRunTime();
1674
1675 #if defined(OS_MACOSX)
1676     // Call Recycle() here as late as possible, before going into the loop
1677     // because Start() will add things to it while creating the main window.
1678     if (parameters().autorelease_pool)
1679       parameters().autorelease_pool->Recycle();
1680 #endif  // defined(OS_MACOSX)
1681
1682     const base::TimeDelta delta = base::TimeTicks::Now() - browser_open_start;
1683     startup_metric_utils::RecordBrowserOpenTabsDelta(delta);
1684
1685     // If we're running tests (ui_task is non-null), then we don't want to
1686     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1687     // RequestLanguageList
1688     if (parameters().ui_task == NULL) {
1689       // Request new variations seed information from server.
1690       variations::VariationsService* variations_service =
1691           browser_process_->variations_service();
1692       if (variations_service)
1693         variations_service->PerformPreMainMessageLoopStartup();
1694
1695       translate::TranslateDownloadManager::RequestLanguageList(
1696           profile_->GetPrefs());
1697     }
1698   }
1699   run_message_loop_ = started;
1700   browser_creator_.reset();
1701
1702 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1703   if (g_browser_process->metrics_service()->reporting_active())
1704     content::StartPowerUsageMonitor();
1705 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1706
1707   process_power_collector_.reset(new ProcessPowerCollector);
1708   process_power_collector_->Initialize();
1709 #endif  // !defined(OS_ANDROID)
1710
1711   PostBrowserStart();
1712
1713   if (parameters().ui_task) {
1714     parameters().ui_task->Run();
1715     delete parameters().ui_task;
1716     run_message_loop_ = false;
1717   }
1718 #if defined(OS_ANDROID)
1719   // We never run the C++ main loop on Android, since the UI thread message
1720   // loop is controlled by the OS, so this is as close as we can get to
1721   // the start of the main loop.
1722   if (result_code_ <= 0) {
1723     RecordBrowserStartupTime();
1724   }
1725 #endif  // defined(OS_ANDROID)
1726
1727 #if !defined(OS_ANDROID)
1728   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1729                       base::TimeTicks::Now() - start_time_step3);
1730 #endif  // !defined(OS_ANDROID)
1731
1732   return result_code_;
1733 }
1734
1735 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1736   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1737 #if defined(OS_ANDROID)
1738   // Chrome on Android does not use default MessageLoop. It has its own
1739   // Android specific MessageLoop
1740   NOTREACHED();
1741   return true;
1742 #else
1743   // Set the result code set in PreMainMessageLoopRun or set above.
1744   *result_code = result_code_;
1745   if (!run_message_loop_)
1746     return true;  // Don't run the default message loop.
1747
1748   // These should be invoked as close to the start of the browser's
1749   // UI thread message loop as possible to get a stable measurement
1750   // across versions.
1751   RecordBrowserStartupTime();
1752
1753   DCHECK(base::MessageLoopForUI::IsCurrent());
1754   base::RunLoop run_loop;
1755
1756   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1757
1758   metrics::MetricsService::SetExecutionPhase(
1759       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1760       g_browser_process->local_state());
1761   run_loop.Run();
1762
1763   return true;
1764 #endif  // defined(OS_ANDROID)
1765 }
1766
1767 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1768   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1769 #if defined(OS_ANDROID)
1770   // Chrome on Android does not use default MessageLoop. It has its own
1771   // Android specific MessageLoop
1772   NOTREACHED();
1773 #else
1774   // Start watching for jank during shutdown. It gets disarmed when
1775   // |shutdown_watcher_| object is destructed.
1776   metrics::MetricsService::SetExecutionPhase(
1777       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1778       g_browser_process->local_state());
1779   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1780
1781   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1782   startup_watcher_->Disarm();
1783
1784   // Remove observers attached to D-Bus clients before DbusThreadManager is
1785   // shut down.
1786   process_power_collector_.reset();
1787
1788 #if !defined(OS_IOS)
1789   webusb_detector_.reset();
1790   webusb_browser_client_.reset();
1791 #endif
1792
1793   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1794     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1795
1796   // Some tests don't set parameters.ui_task, so they started translate
1797   // language fetch that was never completed so we need to cleanup here
1798   // otherwise it will be done by the destructor in a wrong thread.
1799   TranslateService::Shutdown(parameters().ui_task == NULL);
1800
1801   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1802     process_singleton_->Cleanup();
1803
1804   // Stop all tasks that might run on WatchDogThread.
1805   ThreadWatcherList::StopWatchingAll();
1806
1807   browser_process_->metrics_service()->Stop();
1808
1809   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1810   browser_process_->StartTearDown();
1811 #endif  // defined(OS_ANDROID)
1812 }
1813
1814 void ChromeBrowserMainParts::PostDestroyThreads() {
1815 #if defined(OS_ANDROID)
1816   // On Android, there is no quit/exit. So the browser's main message loop will
1817   // not finish.
1818   NOTREACHED();
1819 #else
1820   browser_process_->PostDestroyThreads();
1821   // browser_shutdown takes care of deleting browser_process, so we need to
1822   // release it.
1823   ignore_result(browser_process_.release());
1824   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1825   master_prefs_.reset();
1826   process_singleton_.reset();
1827   device_event_log::Shutdown();
1828
1829   // We need to do this check as late as possible, but due to modularity, this
1830   // may be the last point in Chrome.  This would be more effective if done at
1831   // a higher level on the stack, so that it is impossible for an early return
1832   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1833   // paths from content/browser/browser_main.
1834   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1835
1836 #if defined(OS_CHROMEOS)
1837   chromeos::CrosSettings::Shutdown();
1838 #endif  // defined(OS_CHROMEOS)
1839 #endif  // defined(OS_ANDROID)
1840 }
1841
1842 // Public members:
1843
1844 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1845   chrome_extra_parts_.push_back(parts);
1846 }