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/chrome_net_log.h"
  69 #include "chrome/browser/net/crl_set_fetcher.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/incognito_mode_prefs.h"
  77 #include "chrome/browser/prefs/pref_metrics_service.h"
  78 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  79 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  80 #include "chrome/browser/process_singleton.h"
  81 #include "chrome/browser/profiles/profile.h"
  82 #include "chrome/browser/profiles/profile_manager.h"
  83 #include "chrome/browser/profiles/profiles_state.h"
  84 #include "chrome/browser/shell_integration.h"
  85 #include "chrome/browser/tracing/navigation_tracing.h"
  86 #include "chrome/browser/translate/translate_service.h"
  87 #include "chrome/browser/ui/app_list/app_list_service.h"
  88 #include "chrome/browser/ui/browser.h"
  89 #include "chrome/browser/ui/browser_finder.h"
  90 #include "chrome/browser/ui/host_desktop.h"
  91 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  92 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  93 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  94 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  95 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  96 #include "chrome/common/channel_info.h"
  97 #include "chrome/common/chrome_constants.h"
  98 #include "chrome/common/chrome_paths.h"
  99 #include "chrome/common/chrome_result_codes.h"
 100 #include "chrome/common/chrome_switches.h"
 101 #include "chrome/common/crash_keys.h"
 102 #include "chrome/common/env_vars.h"
 103 #include "chrome/common/logging_chrome.h"
 104 #include "chrome/common/net/net_resource_provider.h"
 105 #include "chrome/common/pref_names.h"
 106 #include "chrome/common/profiling.h"
 107 #include "chrome/common/variations/variations_util.h"
 108 #include "chrome/grit/generated_resources.h"
 109 #include "chrome/installer/util/google_update_settings.h"
 110 #include "components/component_updater/component_updater_service.h"
 111 #include "components/device_event_log/device_event_log.h"
 112 #include "components/google/core/browser/google_util.h"
 113 #include "components/language_usage_metrics/language_usage_metrics.h"
 114 #include "components/metrics/call_stack_profile_metrics_provider.h"
 115 #include "components/metrics/metrics_service.h"
 116 #include "components/metrics/profiler/tracking_synchronizer.h"
 117 #include "components/nacl/browser/nacl_browser.h"
 118 #include "components/rappor/rappor_service.h"
 119 #include "components/signin/core/common/profile_management_switches.h"
 120 #include "components/startup_metric_utils/startup_metric_utils.h"
 121 #include "components/tracing/tracing_switches.h"
 122 #include "components/translate/content/browser/browser_cld_utils.h"
 123 #include "components/translate/content/common/cld_data_source.h"
 124 #include "components/translate/core/browser/translate_download_manager.h"
 125 #include "components/variations/net/variations_http_header_provider.h"
 126 #include "components/variations/pref_names.h"
 127 #include "components/variations/service/variations_service.h"
 128 #include "components/variations/variations_associated_data.h"
 129 #include "components/variations/variations_switches.h"
 130 #include "components/version_info/version_info.h"
 131 #include "content/public/browser/browser_thread.h"
 132 #include "content/public/browser/notification_observer.h"
 133 #include "content/public/browser/notification_registrar.h"
 134 #include "content/public/browser/notification_service.h"
 135 #include "content/public/browser/notification_types.h"
 136 #include "content/public/browser/power_usage_monitor.h"
 137 #include "content/public/browser/site_instance.h"
 138 #include "content/public/common/content_client.h"
 139 #include "content/public/common/content_switches.h"
 140 #include "content/public/common/main_function_params.h"
 141 #include "grit/platform_locale_settings.h"
 142 #include "media/audio/audio_manager.h"
 143 #include "net/base/net_module.h"
 144 #include "net/cookies/cookie_monster.h"
 145 #include "net/http/http_network_layer.h"
 146 #include "net/http/http_stream_factory.h"
 147 #include "net/url_request/url_request.h"
 148 #include "ui/base/l10n/l10n_util.h"
 149 #include "ui/base/layout.h"
 150 #include "ui/base/resource/resource_bundle.h"
 151 #include "ui/strings/grit/app_locale_settings.h"
 152
 153 #if defined(OS_ANDROID)
 154 #include "chrome/browser/android/dev_tools_discovery_provider_android.h"
 155 #include "chrome/browser/metrics/thread_watcher_android.h"
 156 #include "ui/base/resource/resource_bundle_android.h"
 157 #else
 158 #include "chrome/browser/devtools/chrome_devtools_discovery_provider.h"
 159 #include "chrome/browser/feedback/feedback_profile_observer.h"
 160 #endif  // defined(OS_ANDROID)
 161
 162 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 163 #include "chrome/browser/first_run/upgrade_util_linux.h"
 164 #include "chrome/browser/sxs_linux.h"
 165 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 166
 167 #if defined(OS_CHROMEOS)
 168 #include "chrome/browser/chromeos/settings/cros_settings.h"
 169 #include "chromeos/chromeos_switches.h"
 170 #include "chromeos/settings/cros_settings_names.h"
 171 #endif  // defined(OS_CHROMEOS)
 172
 173 // TODO(port): several win-only methods have been pulled out of this, but
 174 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 175 // other platforms. For now, it's just a stub. This is a serious work in
 176 // progress and should not be taken as an indication of a real refactoring.
 177
 178 #if defined(OS_WIN)
 179 #include "base/environment.h"  // For PreRead experiment.
 180 #include "base/trace_event/trace_event_etw_export_win.h"
 181 #include "base/win/windows_version.h"
 182 #include "chrome/browser/browser_util_win.h"
 183 #include "chrome/browser/chrome_browser_main_win.h"
 184 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 185 #include "chrome/browser/component_updater/caps_installer_win.h"
 186 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 187 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 188 #include "chrome/browser/first_run/upgrade_util_win.h"
 189 #include "chrome/browser/ui/network_profile_bubble.h"
 190 #include "chrome/installer/util/helper.h"
 191 #include "chrome/installer/util/install_util.h"
 192 #include "chrome/installer/util/shell_util.h"
 193 #include "components/browser_watcher/exit_funnel_win.h"
 194 #include "net/base/net_util.h"
 195 #include "ui/base/l10n/l10n_util_win.h"
 196 #include "ui/gfx/win/dpi.h"
 197 #include "ui/shell_dialogs/select_file_dialog.h"
 198 #endif  // defined(OS_WIN)
 199
 200 #if defined(OS_MACOSX)
 201 #include <Security/Security.h>
 202
 203 #include "base/mac/scoped_nsautorelease_pool.h"
 204 #include "chrome/browser/mac/keystone_glue.h"
 205 #endif  // defined(OS_MACOSX)
 206
 207 #if !defined(OS_IOS)
 208 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 209 #endif  // !defined(OS_IOS)
 210
 211 #if !defined(DISABLE_NACL)
 212 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 213 #include "components/nacl/browser/nacl_process_host.h"
 214 #endif  // !defined(DISABLE_NACL)
 215
 216 #if defined(ENABLE_EXTENSIONS)
 217 #include "chrome/browser/extensions/startup_helper.h"
 218 #include "extensions/browser/extension_protocols.h"
 219 #include "extensions/common/features/feature_provider.h"
 220 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 221 #endif  // defined(ENABLE_EXTENSIONS)
 222
 223 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 224 #include "printing/printed_document.h"
 225 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 226
 227 #if defined(ENABLE_RLZ)
 228 #include "chrome/browser/rlz/chrome_rlz_tracker_delegate.h"
 229 #include "components/rlz/rlz_tracker.h"
 230 #endif  // defined(ENABLE_RLZ)
 231
 232 #if defined(ENABLE_WEBRTC)
 233 #include "chrome/browser/media/webrtc_log_util.h"
 234 #endif  // defined(ENABLE_WEBRTC)
 235
 236 #if defined(USE_AURA)
 237 #include "ui/aura/env.h"
 238 #endif  // defined(USE_AURA)
 239
 240 #if !defined(OS_ANDROID) && !defined(OS_IOS)
 241 #include "chrome/browser/chrome_webusb_browser_client.h"
 242 #include "components/webusb/webusb_detector.h"
 243 #endif
 244
 245 using content::BrowserThread;
 246
 247 namespace {
 248
 249 // This function provides some ways to test crash and assertion handling
 250 // behavior of the program.
 251 void HandleTestParameters(const base::CommandLine& command_line) {
 252   // This parameter causes a null pointer crash (crash reporter trigger).
 253   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 254     int* bad_pointer = NULL;
 255     *bad_pointer = 0;
 256   }
 257 }
 258
 259 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 260 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 261                         const std::vector<GURL>& new_tabs) {
 262   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 263        it != new_tabs.end(); ++it) {
 264     if (it->is_valid())
 265       browser_creator->AddFirstRunTab(*it);
 266   }
 267 }
 268 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 269
 270 // Returns the new local state object, guaranteed non-NULL.
 271 // |local_state_task_runner| must be a shutdown-blocking task runner.
 272 PrefService* InitializeLocalState(
 273     base::SequencedTaskRunner* local_state_task_runner,
 274     const base::CommandLine& parsed_command_line) {
 275   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 276
 277   // Load local state.  This includes the application locale so we know which
 278   // locale dll to load.  This also causes local state prefs to be registered.
 279   PrefService* local_state = g_browser_process->local_state();
 280   DCHECK(local_state);
 281
 282 #if defined(OS_WIN)
 283   if (first_run::IsChromeFirstRun()) {
 284     // During first run we read the google_update registry key to find what
 285     // language the user selected when downloading the installer. This
 286     // becomes our default language in the prefs.
 287     // Other platforms obey the system locale.
 288     base::string16 install_lang;
 289     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 290       local_state->SetString(prefs::kApplicationLocale,
 291                              base::UTF16ToASCII(install_lang));
 292     }
 293   }
 294 #endif  // defined(OS_WIN)
 295
 296   // If the local state file for the current profile doesn't exist and the
 297   // parent profile command line flag is present, then we should inherit some
 298   // local state from the parent profile.
 299   // Checking that the local state file for the current profile doesn't exist
 300   // is the most robust way to determine whether we need to inherit or not
 301   // since the parent profile command line flag can be present even when the
 302   // current profile is not a new one, and in that case we do not want to
 303   // inherit and reset the user's setting.
 304   //
 305   // TODO(mnissler): We should probably just instantiate a
 306   // JSONPrefStore here instead of an entire PrefService. Once this is
 307   // addressed, the call to browser_prefs::RegisterLocalState can move
 308   // to chrome_prefs::CreateLocalState.
 309   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 310     base::FilePath local_state_path;
 311     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 312     bool local_state_file_exists = base::PathExists(local_state_path);
 313     if (!local_state_file_exists) {
 314       base::FilePath parent_profile =
 315           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 316       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 317       scoped_ptr<PrefService> parent_local_state(
 318           chrome_prefs::CreateLocalState(
 319               parent_profile,
 320               local_state_task_runner,
 321               g_browser_process->policy_service(),
 322               registry,
 323               false));
 324       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 325       // Right now, we only inherit the locale setting from the parent profile.
 326       local_state->SetString(
 327           prefs::kApplicationLocale,
 328           parent_local_state->GetString(prefs::kApplicationLocale));
 329     }
 330   }
 331
 332 #if defined(OS_CHROMEOS)
 333   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 334     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 335     // Ensure that we start with owner's locale.
 336     if (!owner_locale.empty() &&
 337         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 338         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 339       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 340     }
 341   }
 342 #endif  // defined(OS_CHROMEOS)
 343
 344   return local_state;
 345 }
 346
 347 // Initializes the primary profile, possibly doing some user prompting to pick
 348 // a fallback profile. Returns the newly created profile, or NULL if startup
 349 // should not continue.
 350 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 351                               const base::FilePath& user_data_dir,
 352                               const base::CommandLine& parsed_command_line) {
 353   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 354   TRACK_SCOPED_REGION(
 355       "Startup", "ChromeBrowserMainParts::CreatePrimaryProfile");
 356
 357   base::Time start = base::Time::Now();
 358   if (profiles::IsMultipleProfilesEnabled() &&
 359       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 360     profiles::SetLastUsedProfile(
 361         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 362     // Clear kProfilesLastActive since the user only wants to launch a specific
 363     // profile.
 364     ListPrefUpdate update(g_browser_process->local_state(),
 365                           prefs::kProfilesLastActive);
 366     base::ListValue* profile_list = update.Get();
 367     profile_list->Clear();
 368   }
 369
 370   Profile* profile = NULL;
 371 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 372   // On ChromeOS and Android the ProfileManager will use the same path as the
 373   // one we got passed. GetActiveUserProfile will therefore use the correct path
 374   // automatically.
 375   DCHECK_EQ(user_data_dir.value(),
 376             g_browser_process->profile_manager()->user_data_dir().value());
 377   profile = ProfileManager::GetActiveUserProfile();
 378 #else
 379   base::FilePath profile_path =
 380       GetStartupProfilePath(user_data_dir, parsed_command_line);
 381
 382   // Without NewAvatarMenu, replace guest with any existing profile.
 383   if (!switches::IsNewAvatarMenu() &&
 384       profile_path == ProfileManager::GetGuestProfilePath()) {
 385     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 386         GetPathOfProfileAtIndex(0);
 387   }
 388   profile = g_browser_process->profile_manager()->GetProfile(
 389       profile_path);
 390
 391   // If we're using the --new-profile-management flag and this profile is
 392   // signed out, then we should show the user manager instead. By switching
 393   // the active profile to the guest profile we ensure that no
 394   // browser windows will be opened for the guest profile.
 395   if (switches::IsNewProfileManagement() &&
 396       profile &&
 397       !profile->IsGuestSession()) {
 398     ProfileInfoCache& cache =
 399         g_browser_process->profile_manager()->GetProfileInfoCache();
 400     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 401
 402     if (profile_index != std::string::npos &&
 403         cache.ProfileIsSigninRequiredAtIndex(profile_index)) {
 404       profile = g_browser_process->profile_manager()->GetProfile(
 405           ProfileManager::GetGuestProfilePath());
 406     }
 407   }
 408 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID)
 409   if (profile) {
 410     UMA_HISTOGRAM_LONG_TIMES(
 411         "Startup.CreateFirstProfile", base::Time::Now() - start);
 412     return profile;
 413   }
 414
 415 #if !defined(OS_WIN)
 416   // TODO(port): fix this.  See comments near the definition of
 417   // user_data_dir.  It is better to CHECK-fail here than it is to
 418   // silently exit because of missing code in the above test.
 419   CHECK(profile) << "Cannot get default profile.";
 420 #endif  // !defined(OS_WIN)
 421
 422   return NULL;
 423 }
 424
 425 #if defined(OS_MACOSX)
 426 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 427                           SecKeychainCallbackInfo* info, void* context) {
 428   return noErr;
 429 }
 430 #endif  // defined(OS_MACOSX)
 431
 432 void RegisterComponentsForUpdate() {
 433   component_updater::ComponentUpdateService* cus =
 434       g_browser_process->component_updater();
 435
 436   // Registration can be before or after cus->Start() so it is ok to post
 437   // a task to the UI thread to do registration once you done the necessary
 438   // file IO to know you existing component version.
 439 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 440   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 441   RegisterPepperFlashComponent(cus);
 442   RegisterSwiftShaderComponent(cus);
 443   RegisterWidevineCdmComponent(cus);
 444 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 445
 446 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 447 #if defined(OS_CHROMEOS)
 448   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 449   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 450   // installer when running on Linux. See crbug.com/422121 for more details.
 451   if (!base::SysInfo::IsRunningOnChromeOS())
 452 #endif  // defined(OS_CHROMEOS)
 453     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 454 #endif  // !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 455
 456   // Registration of the CLD Component is a no-op unless the CLD data source has
 457   // been configured to be the "Component" data source.
 458   RegisterCldComponent(cus);
 459
 460   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 461       g_browser_process->supervised_user_whitelist_installer();
 462   whitelist_installer->RegisterComponents();
 463
 464   base::FilePath path;
 465   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 466 #if defined(OS_ANDROID)
 467     // The CRLSet component was enabled for some releases. This code attempts to
 468     // delete it from the local disk of those how may have downloaded it.
 469     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 470 #elif !defined(OS_CHROMEOS)
 471     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 472     // network.
 473     // For Chrome OS this registration is delayed until user login.
 474     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 475     // Registration of the EV Whitelist component here is not necessary for:
 476     // 1. Android: Because it currently does not have the EV indicator.
 477     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 478     RegisterEVWhitelistComponent(cus, path);
 479 #endif  // defined(OS_ANDROID)
 480   }
 481
 482 #if defined(OS_WIN)
 483 #if defined(GOOGLE_CHROME_BUILD)
 484   RegisterSwReporterComponent(cus);
 485 #endif  // defined(GOOGLE_CHROME_BUILD)
 486   RegisterCAPSComponent(cus);
 487 #endif  // defined(OS_WIN)
 488 }
 489
 490 #if !defined(OS_ANDROID)
 491 bool ProcessSingletonNotificationCallback(
 492     const base::CommandLine& command_line,
 493     const base::FilePath& current_directory) {
 494   // Drop the request if the browser process is already in shutdown path.
 495   if (!g_browser_process || g_browser_process->IsShuttingDown()) {
 496 #if defined(OS_WIN)
 497     browser_watcher::ExitFunnel::RecordSingleEvent(
 498         chrome::kBrowserExitCodesRegistryPath,
 499         L"ProcessSingletonIsShuttingDown");
 500 #endif  // defined(OS_WIN)
 501
 502     return false;
 503   }
 504
 505   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 506     std::string start_time_string =
 507         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 508     int64 remote_start_time;
 509     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 510       base::TimeDelta elapsed =
 511           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 512       if (command_line.HasSwitch(switches::kFastStart)) {
 513         UMA_HISTOGRAM_LONG_TIMES(
 514             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 515       } else {
 516         UMA_HISTOGRAM_LONG_TIMES(
 517             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 518       }
 519     }
 520   }
 521
 522   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 523       command_line);
 524
 525   base::FilePath user_data_dir =
 526       g_browser_process->profile_manager()->user_data_dir();
 527   base::FilePath startup_profile_dir =
 528       GetStartupProfilePath(user_data_dir, command_line);
 529
 530   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 531       command_line, current_directory, startup_profile_dir);
 532   return true;
 533 }
 534 #endif  // !defined(OS_ANDROID)
 535
 536 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 537   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 538     std::string port_str =
 539         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 540     int port;
 541     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 542       g_browser_process->CreateDevToolsHttpProtocolHandler(
 543           chrome::HOST_DESKTOP_TYPE_NATIVE,
 544           "127.0.0.1",
 545           static_cast<uint16>(port));
 546     } else {
 547       DLOG(WARNING) << "Invalid http debugger port number " << port;
 548     }
 549   }
 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       sampling_profiler_(
 581           base::PlatformThread::CurrentId(),
 582           sampling_profiler_config_.GetSamplingParams(),
 583           metrics::CallStackProfileMetricsProvider::GetProfilerCallback(
 584               metrics::CallStackProfileMetricsProvider::Params(
 585                   metrics::CallStackProfileMetricsProvider::PROCESS_STARTUP,
 586                   false))),
 587       profile_(NULL),
 588       run_message_loop_(true),
 589       notify_result_(ProcessSingleton::PROCESS_NONE),
 590       local_state_(NULL),
 591       restart_last_session_(false) {
 592   if (sampling_profiler_config_.IsProfilerEnabled())
 593     sampling_profiler_.Start();
 594
 595   // If we're running tests (ui_task is non-null).
 596   if (parameters.ui_task)
 597     browser_defaults::enable_help_app = false;
 598
 599   // Chrome disallows cookies by default. All code paths that want to use
 600   // cookies need to go through one of Chrome's URLRequestContexts which have
 601   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 602   net::URLRequest::SetDefaultCookiePolicyToBlock();
 603 }
 604
 605 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 606   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 607     delete chrome_extra_parts_[i];
 608   chrome_extra_parts_.clear();
 609 }
 610
 611 // This will be called after the command-line has been mutated by about:flags
 612 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 613   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 614   // Must initialize metrics after labs have been converted into switches,
 615   // but before field trials are set up (so that client ID is available for
 616   // one-time randomized field trials).
 617
 618   // Initialize FieldTrialList to support FieldTrials that use one-time
 619   // randomization.
 620   metrics::MetricsService* metrics = browser_process_->metrics_service();
 621   field_trial_list_.reset(
 622       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 623
 624   const base::CommandLine* command_line =
 625       base::CommandLine::ForCurrentProcess();
 626   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 627       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 628     base::FieldTrial::EnableBenchmarking();
 629   }
 630
 631   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 632     bool result = chrome_variations::AssociateParamsFromString(
 633         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 634     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 635                   << " list specified.";
 636   }
 637
 638   // Ensure any field trials specified on the command line are initialized.
 639   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 640     std::set<std::string> unforceable_field_trials;
 641 #if defined(OFFICIAL_BUILD)
 642     unforceable_field_trials.insert("SettingsEnforcement");
 643 #endif  // defined(OFFICIAL_BUILD)
 644
 645     // Create field trials without activating them, so that this behaves in a
 646     // consistent manner with field trials created from the server.
 647     bool result = base::FieldTrialList::CreateTrialsFromString(
 648         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 649         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 650         unforceable_field_trials);
 651     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 652                   << " list specified.";
 653   }
 654
 655 #if defined(FIELDTRIAL_TESTING_ENABLED)
 656   if (!command_line->HasSwitch(switches::kDisableFieldTrialTestingConfig) &&
 657       !command_line->HasSwitch(switches::kForceFieldTrials) &&
 658       !command_line->HasSwitch(variations::switches::kVariationsServerURL))
 659     chrome_variations::AssociateDefaultFieldTrialConfig();
 660 #endif  // defined(FIELDTRIAL_TESTING_ENABLED)
 661
 662   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 663     // Create default variation ids which will always be included in the
 664     // X-Client-Data request header.
 665     variations::VariationsHttpHeaderProvider* provider =
 666         variations::VariationsHttpHeaderProvider::GetInstance();
 667     bool result = provider->SetDefaultVariationIds(
 668         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 669     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 670                   << " list specified.";
 671     metrics->AddSyntheticTrialObserver(provider);
 672   }
 673
 674   scoped_ptr<base::FeatureList> feature_list(new base::FeatureList);
 675   feature_list->InitializeFromCommandLine(
 676       command_line->GetSwitchValueASCII(switches::kEnableFeatures),
 677       command_line->GetSwitchValueASCII(switches::kDisableFeatures));
 678
 679   variations::VariationsService* variations_service =
 680       browser_process_->variations_service();
 681   if (variations_service)
 682     variations_service->CreateTrialsFromSeed();
 683
 684   // TODO(asvitkine): Pass |feature_list| to CreateTrialsFromSeed() above.
 685   base::FeatureList::SetInstance(feature_list.Pass());
 686
 687   // This must be called after |local_state_| is initialized.
 688   browser_field_trials_.SetupFieldTrials();
 689
 690   // Enable Navigation Tracing only if a trace upload url is specified.
 691   if (command_line->HasSwitch(switches::kEnableNavigationTracing) &&
 692       command_line->HasSwitch(switches::kTraceUploadURL)) {
 693     tracing::SetupNavigationTracing();
 694   }
 695
 696   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 697   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 698   // Even though base::Bind does AddRef and Release, the object will not be
 699   // deleted after the Task is executed.
 700   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 701
 702   // Now that field trials have been created, initializes metrics recording.
 703   metrics->InitializeMetricsRecordingState();
 704
 705   const version_info::Channel channel = chrome::GetChannel();
 706
 707   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 708   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 709   if (channel == version_info::Channel::UNKNOWN ||
 710       channel == version_info::Channel::CANARY ||
 711       channel == version_info::Channel::DEV) {
 712     media::AudioManager::EnableHangMonitor();
 713   }
 714
 715   // Enable profiler instrumentation depending on the channel.
 716   switch (channel) {
 717     case version_info::Channel::UNKNOWN:
 718     case version_info::Channel::CANARY:
 719       tracked_objects::ScopedTracker::Enable();
 720       break;
 721
 722     case version_info::Channel::DEV:
 723     case version_info::Channel::BETA:
 724     case version_info::Channel::STABLE:
 725       // Don't enable instrumentation.
 726       break;
 727   }
 728
 729   // Register a synthetic field trial for the sampling profiler configuration
 730   // that was already chosen.
 731   sampling_profiler_config_.RegisterSyntheticFieldTrial();
 732 }
 733
 734 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 735
 736 void ChromeBrowserMainParts::StartMetricsRecording() {
 737   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 738
 739   g_browser_process->metrics_service()->CheckForClonedInstall(
 740       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 741
 742   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 743 }
 744
 745 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 746   // Don't record any metrics if UI was displayed before this point e.g.
 747   // warning dialogs.
 748   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 749     return;
 750
 751   bool is_first_run = false;
 752 #if !defined(OS_ANDROID)
 753   // On Android, first run is handled in Java code, and the C++ side of Chrome
 754   // doesn't know if this is the first run. This will cause some inaccuracy in
 755   // the UMA statistics, but this should be minor (first runs are rare).
 756   is_first_run = first_run::IsChromeFirstRun();
 757 #endif  // defined(OS_ANDROID)
 758
 759   // Record collected startup metrics.
 760   startup_metric_utils::RecordBrowserMainMessageLoopStart(base::Time::Now(),
 761                                                           is_first_run);
 762 }
 763
 764 // -----------------------------------------------------------------------------
 765 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 766
 767 #if defined(OS_WIN)
 768 #define DLLEXPORT __declspec(dllexport)
 769
 770 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 771 extern "C" {
 772 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 773 }
 774
 775 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 776   // Need an instance of AtExitManager to handle singleton creations and
 777   // deletions.  We need this new instance because, the old instance created
 778   // in ChromeMain() got destructed when the function returned.
 779   base::AtExitManager exit_manager;
 780   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 781 }
 782 #endif
 783
 784 // content::BrowserMainParts implementation ------------------------------------
 785
 786 void ChromeBrowserMainParts::PreEarlyInitialization() {
 787   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 788   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 789     chrome_extra_parts_[i]->PreEarlyInitialization();
 790 }
 791
 792 void ChromeBrowserMainParts::PostEarlyInitialization() {
 793   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 794   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 795     chrome_extra_parts_[i]->PostEarlyInitialization();
 796 }
 797
 798 void ChromeBrowserMainParts::ToolkitInitialized() {
 799   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 800   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 801     chrome_extra_parts_[i]->ToolkitInitialized();
 802 }
 803
 804 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 805   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 806
 807   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 808     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 809 }
 810
 811 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 812   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 813
 814   // device_event_log must be initialized after the message loop. Calls to
 815   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 816   // platforms (e.g. chromeos) may have already initialized this.
 817   if (!device_event_log::IsInitialized())
 818     device_event_log::Initialize(0 /* default max entries */);
 819
 820   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 821     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 822 }
 823
 824 int ChromeBrowserMainParts::PreCreateThreads() {
 825   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 826   result_code_ = PreCreateThreadsImpl();
 827
 828   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 829 #if !defined(OS_ANDROID)
 830     // These members must be initialized before exiting this function normally.
 831     DCHECK(master_prefs_.get());
 832     DCHECK(browser_creator_.get());
 833 #endif  // !defined(OS_ANDROID)
 834     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 835       chrome_extra_parts_[i]->PreCreateThreads();
 836   }
 837
 838   return result_code_;
 839 }
 840
 841 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 842   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 843   run_message_loop_ = false;
 844 #if !defined(OS_ANDROID)
 845   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 846 #endif  // !defined(OS_ANDROID)
 847   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 848     return chrome::RESULT_CODE_MISSING_DATA;
 849
 850   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 851   MediaCaptureDevicesDispatcher::GetInstance();
 852
 853   // Android's first run is done in Java instead of native.
 854 #if !defined(OS_ANDROID)
 855   process_singleton_.reset(new ChromeProcessSingleton(
 856       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 857
 858   // Cache first run state early.
 859   first_run::IsChromeFirstRun();
 860 #endif  // !defined(OS_ANDROID)
 861
 862   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 863       JsonPrefStore::GetTaskRunnerForFile(
 864           base::FilePath(chrome::kLocalStorePoolName),
 865           BrowserThread::GetBlockingPool());
 866
 867   {
 868     TRACE_EVENT0("startup",
 869       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 870     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 871                                                   parsed_command_line()));
 872   }
 873
 874   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 875     TRACE_EVENT0("startup",
 876         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 877     // User wants to override default tracking status.
 878     std::string flag =
 879       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 880     // Default to basic profiling (no parent child support).
 881     tracked_objects::ThreadData::Status status =
 882           tracked_objects::ThreadData::PROFILING_ACTIVE;
 883     if (flag.compare("0") != 0)
 884       status = tracked_objects::ThreadData::DEACTIVATED;
 885     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 886   }
 887
 888   local_state_ = InitializeLocalState(
 889       local_state_task_runner.get(), parsed_command_line());
 890
 891 #if !defined(OS_ANDROID)
 892   // These members must be initialized before returning from this function.
 893   master_prefs_.reset(new first_run::MasterPrefs);
 894   // Android doesn't use StartupBrowserCreator.
 895   browser_creator_.reset(new StartupBrowserCreator);
 896   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 897   chrome::UMABrowsingActivityObserver::Init();
 898 #endif  // !defined(OS_ANDROID)
 899
 900 #if !defined(OS_CHROMEOS)
 901   // Convert active labs into switches. This needs to be done before
 902   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 903   // affected by experiment flags (--touch-optimized-ui in particular).
 904   // On ChromeOS system level flags are applied from the device settings from
 905   // the session manager.
 906   {
 907     TRACE_EVENT0("startup",
 908         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 909     about_flags::PrefServiceFlagsStorage flags_storage_(
 910         g_browser_process->local_state());
 911     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 912                                         base::CommandLine::ForCurrentProcess(),
 913                                         about_flags::kAddSentinels);
 914   }
 915 #endif  // !defined(OS_CHROMEOS)
 916
 917 #if defined(OS_WIN)
 918   // This is needed to enable ETW exporting when requested in about:flags.
 919   // Normally, we enable it in ContentMainRunnerImpl::Initialize when the flag
 920   // is present on the command line but flags in about:flags are converted only
 921   // after this function runs. Note that this starts exporting later which
 922   // affects tracing the browser startup. Also, this is only relevant for the
 923   // browser process, as other processes will get all the flags on their command
 924   // line regardless of the origin (command line or about:flags).
 925   if (parsed_command_line().HasSwitch(switches::kTraceExportEventsToETW))
 926     base::trace_event::TraceEventETWExport::EnableETWExport();
 927 #endif  // OS_WIN
 928
 929   local_state_->UpdateCommandLinePrefStore(
 930       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 931
 932   // Reset the command line in the crash report details, since we may have
 933   // just changed it to include experiments.
 934   crash_keys::SetSwitchesFromCommandLine(
 935       base::CommandLine::ForCurrentProcess());
 936
 937   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 938   // needed when loading the MainMenu.nib and the language doesn't depend on
 939   // anything since it comes from Cocoa.
 940 #if defined(OS_MACOSX)
 941   std::string locale =
 942       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 943   browser_process_->SetApplicationLocale(locale);
 944 #else
 945   const std::string locale =
 946       local_state_->GetString(prefs::kApplicationLocale);
 947
 948   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 949   // method InitSharedInstance is ignored.
 950
 951   TRACE_EVENT_BEGIN0("startup",
 952       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 953   const std::string loaded_locale =
 954       ui::ResourceBundle::InitSharedInstanceWithLocale(
 955           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 956   TRACE_EVENT_END0("startup",
 957       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 958
 959   if (loaded_locale.empty() &&
 960       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 961     ShowMissingLocaleMessageBox();
 962     return chrome::RESULT_CODE_MISSING_DATA;
 963   }
 964   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 965   browser_process_->SetApplicationLocale(loaded_locale);
 966
 967   {
 968     TRACE_EVENT0("startup",
 969         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 970     base::FilePath resources_pack_path;
 971     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 972 #if defined(OS_ANDROID)
 973     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 974 #else
 975     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 976         resources_pack_path, ui::SCALE_FACTOR_NONE);
 977 #endif  // defined(OS_ANDROID)
 978   }
 979 #endif  // defined(OS_MACOSX)
 980
 981   // Android does first run in Java instead of native.
 982   // Chrome OS has its own out-of-box-experience code.
 983 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 984   // On first run, we need to process the predictor preferences before the
 985   // browser's profile_manager object is created, but after ResourceBundle
 986   // is initialized.
 987   if (first_run::IsChromeFirstRun()) {
 988     first_run::ProcessMasterPreferencesResult pmp_result =
 989         first_run::ProcessMasterPreferences(user_data_dir_,
 990                                             master_prefs_.get());
 991     if (pmp_result == first_run::EULA_EXIT_NOW)
 992       return chrome::RESULT_CODE_EULA_REFUSED;
 993
 994     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 995         !parsed_command_line().HasSwitch(switches::kAppId) &&
 996         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 997       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 998     }
 999
1000     // TODO(macourteau): refactor preferences that are copied from
1001     // master_preferences into local_state, as a "local_state" section in
1002     // master preferences. If possible, a generic solution would be preferred
1003     // over a copy one-by-one of specific preferences. Also see related TODO
1004     // in first_run.h.
1005
1006     // Store the initial VariationsService seed in local state, if it exists
1007     // in master prefs.
1008     if (!master_prefs_->variations_seed.empty() ||
1009         !master_prefs_->compressed_variations_seed.empty()) {
1010       if (!master_prefs_->variations_seed.empty()) {
1011         local_state_->SetString(variations::prefs::kVariationsSeed,
1012                                 master_prefs_->variations_seed);
1013       }
1014       if (!master_prefs_->compressed_variations_seed.empty()) {
1015         local_state_->SetString(variations::prefs::kVariationsCompressedSeed,
1016                                 master_prefs_->compressed_variations_seed);
1017       }
1018       if (!master_prefs_->variations_seed_signature.empty()) {
1019         local_state_->SetString(variations::prefs::kVariationsSeedSignature,
1020                                 master_prefs_->variations_seed_signature);
1021       }
1022       // Set the variation seed date to the current system time. If the user's
1023       // clock is incorrect, this may cause some field trial expiry checks to
1024       // not do the right thing until the next seed update from the server,
1025       // when this value will be updated.
1026       local_state_->SetInt64(variations::prefs::kVariationsSeedDate,
1027                              base::Time::Now().ToInternalValue());
1028     }
1029
1030     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
1031       local_state_->SetString(
1032           prefs::kBrowserSuppressDefaultBrowserPrompt,
1033           master_prefs_->suppress_default_browser_prompt_for_version);
1034     }
1035
1036 #if defined(OS_WIN)
1037     if (!master_prefs_->welcome_page_on_os_upgrade_enabled)
1038       local_state_->SetBoolean(prefs::kWelcomePageOnOSUpgradeEnabled, false);
1039 #endif
1040   }
1041 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1042
1043 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1044   // Set the product channel for crash reports.
1045   base::debug::SetCrashKeyValue(crash_keys::kChannel,
1046                                 chrome::GetChannelString());
1047 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1048
1049   // Initialize tracking synchronizer system.
1050   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
1051       make_scoped_ptr(new base::DefaultTickClock()));
1052
1053 #if defined(OS_MACOSX)
1054   // Get the Keychain API to register for distributed notifications on the main
1055   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
1056   // which doesn't. This ensures those notifications will get delivered
1057   // properly. See issue 37766.
1058   // (Note that the callback mask here is empty. I don't want to register for
1059   // any callbacks, I just want to initialize the mechanism.)
1060   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1061 #endif  // defined(OS_MACOSX)
1062
1063 #if defined(OS_CHROMEOS)
1064   // Must be done after g_browser_process is constructed, before
1065   // SetupMetricsAndFieldTrials().
1066   chromeos::CrosSettings::Initialize();
1067 #endif  // defined(OS_CHROMEOS)
1068
1069   // Now the command line has been mutated based on about:flags, we can setup
1070   // metrics and initialize field trials. The field trials are needed by
1071   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1072   SetupMetricsAndFieldTrials();
1073
1074   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1075   browser_process_->PreCreateThreads();
1076
1077   return content::RESULT_CODE_NORMAL_EXIT;
1078 }
1079
1080 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1081   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1082   TRACK_SCOPED_REGION(
1083       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1084
1085   result_code_ = PreMainMessageLoopRunImpl();
1086
1087   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1088     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1089 }
1090
1091 // PreMainMessageLoopRun calls these extra stages in the following order:
1092 //  PreMainMessageLoopRunImpl()
1093 //   ... initial setup, including browser_process_ setup.
1094 //   PreProfileInit()
1095 //   ... additional setup, including CreateProfile()
1096 //   PostProfileInit()
1097 //   ... additional setup
1098 //   PreBrowserStart()
1099 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1100 //   PostBrowserStart()
1101
1102 void ChromeBrowserMainParts::PreProfileInit() {
1103   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1104
1105   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1106     chrome_extra_parts_[i]->PreProfileInit();
1107
1108 #if !defined(OS_ANDROID)
1109   // Initialize the feedback uploader so it can setup notifications for profile
1110   // creation.
1111   feedback::FeedbackProfileObserver::Initialize();
1112
1113   // Ephemeral profiles may have been left behind if the browser crashed.
1114   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1115 #endif  // !defined(OS_ANDROID)
1116
1117 #if defined(ENABLE_EXTENSIONS)
1118   javascript_dialog_extensions_client::InstallClient();
1119 #endif  // defined(ENABLE_EXTENSIONS)
1120
1121 #if !defined(OS_IOS)
1122   InstallChromeJavaScriptNativeDialogFactory();
1123 #endif  // !defined(OS_IOS)
1124 }
1125
1126 void ChromeBrowserMainParts::PostProfileInit() {
1127   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1128
1129 #if defined(OS_ANDROID)
1130   DevToolsDiscoveryProviderAndroid::Install();
1131 #else
1132   ChromeDevToolsDiscoveryProvider::Install();
1133 #endif  // defined(OS_ANDROID)
1134
1135   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1136   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1137     chrome_extra_parts_[i]->PostProfileInit();
1138 }
1139
1140 void ChromeBrowserMainParts::PreBrowserStart() {
1141   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1142   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1143     chrome_extra_parts_[i]->PreBrowserStart();
1144
1145   three_d_observer_.reset(new ThreeDAPIObserver());
1146
1147   // Start the out-of-memory priority manager here so that we give the most
1148   // amount of time for the other services to start up before we start
1149   // adjusting the oom priority.
1150   //
1151   // On CrOS, it is always enabled. On other platforms, it's behind a flag for
1152   // now.
1153 #if defined(OS_CHROMEOS)
1154   g_browser_process->GetOomPriorityManager()->Start(false);
1155 #elif defined(OS_WIN) || defined(OS_MACOSX)
1156   const std::string group_name =
1157       base::FieldTrialList::FindFullName("AutomaticTabDiscarding");
1158   if (parsed_command_line().HasSwitch(switches::kEnableTabDiscarding) ||
1159       base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE)) {
1160     bool enabled_once = base::StartsWith(group_name, "Enabled_Once",
1161                                          base::CompareCase::SENSITIVE);
1162     g_browser_process->GetOomPriorityManager()->Start(enabled_once);
1163   }
1164 #endif
1165 }
1166
1167 void ChromeBrowserMainParts::PostBrowserStart() {
1168   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1169   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1170     chrome_extra_parts_[i]->PostBrowserStart();
1171 #if !defined(OS_ANDROID)
1172   // Allow ProcessSingleton to process messages.
1173   process_singleton_->Unlock();
1174 #endif  // !defined(OS_ANDROID)
1175 #if defined(ENABLE_WEBRTC)
1176   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1177   // to reduce the impact on startup time.
1178   BrowserThread::PostDelayedTask(
1179       BrowserThread::UI,
1180       FROM_HERE,
1181       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1182       base::TimeDelta::FromMinutes(1));
1183 #endif  // defined(ENABLE_WEBRTC)
1184
1185 #if !defined(OS_ANDROID) && !defined(OS_IOS)
1186   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1187           switches::kEnableWebUsbNotifications)) {
1188     webusb_browser_client_.reset(new ChromeWebUsbBrowserClient());
1189     webusb_detector_.reset(
1190         new webusb::WebUsbDetector(webusb_browser_client_.get()));
1191   }
1192 #endif
1193
1194   // At this point, StartupBrowserCreator::Start has run creating initial
1195   // browser windows and tabs, but no progress has been made in loading
1196   // content as the main message loop hasn't started processing tasks yet.
1197   // We setup to observe to the initial page load here to defer running
1198   // task posted via PostAfterStartupTask until its complete.
1199   AfterStartupTaskUtils::StartMonitoringStartup();
1200 }
1201
1202 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1203   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1204   TRACK_SCOPED_REGION(
1205       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1206
1207   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1208   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1209
1210 #if defined(OS_WIN)
1211   // Windows parental controls calls can be slow, so we do an early init here
1212   // that calculates this value off of the UI thread.
1213   IncognitoModePrefs::InitializePlatformParentalControls();
1214 #endif
1215
1216 #if defined(ENABLE_EXTENSIONS)
1217   if (!variations::GetVariationParamValue(
1218       "LightSpeed", "EarlyInitStartup").empty()) {
1219     // Try to compute this early on another thread so that we don't spend time
1220     // during profile load initializing the extensions APIs.
1221     BrowserThread::PostTask(
1222         BrowserThread::FILE_USER_BLOCKING,
1223         FROM_HERE,
1224         base::Bind(
1225             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1226   }
1227 #endif
1228
1229   // Android updates the metrics service dynamically depending on whether the
1230   // application is in the foreground or not. Do not start here.
1231 #if !defined(OS_ANDROID)
1232   // Now that the file thread has been started, start recording.
1233   StartMetricsRecording();
1234 #endif  // !defined(OS_ANDROID)
1235
1236   if (!base::debug::BeingDebugged()) {
1237     // Create watchdog thread after creating all other threads because it will
1238     // watch the other threads and they must be running.
1239     browser_process_->watchdog_thread();
1240   }
1241
1242   // Do any initializating in the browser process that requires all threads
1243   // running.
1244   browser_process_->PreMainMessageLoopRun();
1245
1246   // Record last shutdown time into a histogram.
1247   browser_shutdown::ReadLastShutdownInfo();
1248
1249 #if defined(OS_WIN)
1250   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1251   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1252   // upgrade/uninstall happen separately.
1253   bool already_running = browser_util::IsBrowserAlreadyRunning();
1254
1255   // If the command line specifies 'uninstall' then we need to work here
1256   // unless we detect another chrome browser running.
1257   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1258     return DoUninstallTasks(already_running);
1259   }
1260
1261   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1262       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1263     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1264         parsed_command_line_);
1265   }
1266
1267   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1268       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1269 #endif  // defined(OS_WIN)
1270
1271   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1272     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1273         prefs::kDefaultBrowserSettingEnabled);
1274     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1275         prefs::kDefaultBrowserSettingEnabled)) {
1276       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1277     }
1278
1279     return ShellIntegration::SetAsDefaultBrowser() ?
1280         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1281         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1282   }
1283
1284 #if defined(USE_AURA)
1285   // Make sure aura::Env has been initialized.
1286   CHECK(aura::Env::GetInstance());
1287 #endif  // defined(USE_AURA)
1288
1289   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1290 #if !defined(OS_ANDROID)
1291   // If the command line specifies --pack-extension, attempt the pack extension
1292   // startup action and exit.
1293   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1294     extensions::StartupHelper extension_startup_helper;
1295     if (extension_startup_helper.PackExtension(parsed_command_line()))
1296       return content::RESULT_CODE_NORMAL_EXIT;
1297     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1298   }
1299
1300   // When another process is running, use that process instead of starting a
1301   // new one. NotifyOtherProcess will currently give the other process up to
1302   // 20 seconds to respond. Note that this needs to be done before we attempt
1303   // to read the profile.
1304   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1305   switch (notify_result_) {
1306     case ProcessSingleton::PROCESS_NONE:
1307       // No process already running, fall through to starting a new one.
1308       break;
1309
1310     case ProcessSingleton::PROCESS_NOTIFIED:
1311 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1312       // On POSIX systems, print a message notifying the process is running.
1313       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1314           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1315 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1316
1317       // Having a differentiated return type for testing allows for tests to
1318       // verify proper handling of some switches. When not testing, stick to
1319       // the standard Unix convention of returning zero when things went as
1320       // expected.
1321       if (parsed_command_line().HasSwitch(switches::kTestType))
1322         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1323       return content::RESULT_CODE_NORMAL_EXIT;
1324
1325     case ProcessSingleton::PROFILE_IN_USE:
1326       return chrome::RESULT_CODE_PROFILE_IN_USE;
1327
1328     case ProcessSingleton::LOCK_ERROR:
1329       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1330                     "directory. This means that running multiple instances "
1331                     "would start multiple browser processes rather than "
1332                     "opening a new window in the existing process. Aborting "
1333                     "now to avoid profile corruption.";
1334       return chrome::RESULT_CODE_PROFILE_IN_USE;
1335
1336     default:
1337       NOTREACHED();
1338   }
1339 #endif  // !defined(OS_ANDROID)
1340
1341   // Handle special early return paths (which couldn't be processed even earlier
1342   // as they require the process singleton to be held) first.
1343
1344   std::string try_chrome =
1345       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1346   if (!try_chrome.empty()) {
1347 #if defined(OS_WIN)
1348     // Setup.exe has determined that we need to run a retention experiment
1349     // and has lauched chrome to show the experiment UI. It is guaranteed that
1350     // no other Chrome is currently running as the process singleton was
1351     // sucessfully grabbed above.
1352     int try_chrome_int;
1353     base::StringToInt(try_chrome, &try_chrome_int);
1354     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1355         try_chrome_int,
1356         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1357                    base::Unretained(process_singleton_.get())));
1358     if (answer == TryChromeDialogView::NOT_NOW)
1359       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1360     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1361       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1362     // At this point the user is willing to try chrome again.
1363     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1364       // Only set in the unattended case, the interactive case is Windows 8.
1365       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1366           ShellIntegration::SET_DEFAULT_UNATTENDED)
1367         ShellIntegration::SetAsDefaultBrowser();
1368     }
1369 #else
1370     // We don't support retention experiments on Mac or Linux.
1371     return content::RESULT_CODE_NORMAL_EXIT;
1372 #endif  // defined(OS_WIN)
1373   }
1374
1375 #if defined(OS_WIN)
1376   // Do the tasks if chrome has been upgraded while it was last running.
1377   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1378     return content::RESULT_CODE_NORMAL_EXIT;
1379
1380   // Check if there is any machine level Chrome installed on the current
1381   // machine. If yes and the current Chrome process is user level, we do not
1382   // allow the user level Chrome to run. So we notify the user and uninstall
1383   // user level Chrome.
1384   // Note this check needs to happen here (after the process singleton was
1385   // obtained but before potentially creating the first run sentinel).
1386   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1387     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1388 #endif  // defined(OS_WIN)
1389
1390 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1391   if (sxs_linux::ShouldMigrateUserDataDir())
1392     return sxs_linux::MigrateUserDataDir();
1393 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1394
1395   // Desktop construction occurs here, (required before profile creation).
1396   PreProfileInit();
1397
1398   // Profile creation ----------------------------------------------------------
1399
1400   metrics::MetricsService::SetExecutionPhase(
1401       metrics::MetricsService::CREATE_PROFILE,
1402       g_browser_process->local_state());
1403
1404   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1405                       base::TimeTicks::Now() - start_time_step1);
1406
1407   // This step is costly and is already measured in Startup.CreateFirstProfile
1408   // and more directly Profile.CreateAndInitializeProfile.
1409   profile_ = CreatePrimaryProfile(parameters(),
1410                                   user_data_dir_,
1411                                   parsed_command_line());
1412   if (!profile_)
1413     return content::RESULT_CODE_NORMAL_EXIT;
1414
1415 #if !defined(OS_ANDROID)
1416   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1417   // The first run sentinel must be created after the process singleton was
1418   // grabbed and no early return paths were otherwise hit above.
1419   first_run::CreateSentinelIfNeeded();
1420 #endif  // !defined(OS_ANDROID)
1421
1422 #if defined(ENABLE_BACKGROUND)
1423   // Autoload any profiles which are running background apps.
1424   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1425   browser_process_->profile_manager()->AutoloadProfiles();
1426 #endif  // defined(ENABLE_BACKGROUND)
1427   // Post-profile init ---------------------------------------------------------
1428
1429   TranslateService::Initialize();
1430
1431   // Needs to be done before PostProfileInit, since login manager on CrOS is
1432   // called inside PostProfileInit.
1433   content::WebUIControllerFactory::RegisterFactory(
1434       ChromeWebUIControllerFactory::GetInstance());
1435
1436   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1437   // So make sure to create it before that.
1438 #if !defined(DISABLE_NACL)
1439   NaClBrowserDelegateImpl* delegate =
1440       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1441   nacl::NaClBrowser::SetDelegate(delegate);
1442 #endif  // !defined(DISABLE_NACL)
1443
1444   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1445   // (requires supporting early exit).
1446   PostProfileInit();
1447
1448   // Retrieve cached GL strings from local state and use them for GPU
1449   // blacklist decisions.
1450   if (g_browser_process->gl_string_manager())
1451     g_browser_process->gl_string_manager()->Initialize();
1452
1453   // Create an instance of GpuModeManager to watch gpu mode pref change.
1454   g_browser_process->gpu_mode_manager();
1455
1456 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1457   // Show the First Run UI if this is the first time Chrome has been run on
1458   // this computer, or we're being compelled to do so by a command line flag.
1459   // Note that this be done _after_ the PrefService is initialized and all
1460   // preferences are registered, since some of the code that the importer
1461   // touches reads preferences.
1462   if (first_run::IsChromeFirstRun()) {
1463     first_run::AutoImport(profile_,
1464                           master_prefs_->homepage_defined,
1465                           master_prefs_->do_import_items,
1466                           master_prefs_->dont_import_items,
1467                           master_prefs_->import_bookmarks_path);
1468
1469     // Note: this can pop the first run consent dialog on linux.
1470     first_run::DoPostImportTasks(profile_,
1471                                  master_prefs_->make_chrome_default_for_user);
1472
1473     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1474       browser_creator_->set_show_main_browser_window(
1475           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1476     } else {
1477       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1478     }
1479   }
1480 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1481
1482 #if defined(OS_WIN)
1483   // Sets things up so that if we crash from this point on, a dialog will
1484   // popup asking the user to restart chrome. It is done this late to avoid
1485   // testing against a bunch of special cases that are taken care early on.
1486   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1487       parsed_command_line());
1488
1489   // Registers Chrome with the Windows Restart Manager, which will restore the
1490   // Chrome session when the computer is restarted after a system update.
1491   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1492   // but should run on startup if extended to handle crashes/hangs/patches.
1493   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1494   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1495     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1496         parsed_command_line());
1497   }
1498
1499   // Verify that the profile is not on a network share and if so prepare to show
1500   // notification to the user.
1501   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1502     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1503         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1504                    profile_->GetPath()));
1505   }
1506 #endif  // defined(OS_WIN)
1507
1508 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1509   // Init the RLZ library. This just binds the dll and schedules a task on the
1510   // file thread to be run sometime later. If this is the first run we record
1511   // the installation event.
1512   PrefService* pref_service = profile_->GetPrefs();
1513   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1514       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1515   // Negative ping delay means to send ping immediately after a first search is
1516   // recorded.
1517   rlz::RLZTracker::SetRlzDelegate(
1518       make_scoped_ptr(new ChromeRLZTrackerDelegate));
1519   rlz::RLZTracker::InitRlzDelayed(
1520       first_run::IsChromeFirstRun(), ping_delay < 0,
1521       base::TimeDelta::FromMilliseconds(abs(ping_delay)),
1522       ChromeRLZTrackerDelegate::IsGoogleDefaultSearch(profile_),
1523       ChromeRLZTrackerDelegate::IsGoogleHomepage(profile_),
1524       ChromeRLZTrackerDelegate::IsGoogleInStartpages(profile_));
1525 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1526
1527   // Configure modules that need access to resources.
1528   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1529
1530   // In unittest mode, this will do nothing.  In normal mode, this will create
1531   // the global IntranetRedirectDetector instance, which will promptly go to
1532   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1533   // to see if it should do anything else.
1534   //
1535   // A simpler way of doing all this would be to have some function which could
1536   // give the time elapsed since startup, and simply have this object check that
1537   // when asked to initialize itself, but this doesn't seem to exist.
1538   //
1539   // This can't be created in the BrowserProcessImpl constructor because it
1540   // needs to read prefs that get set after that runs.
1541   browser_process_->intranet_redirect_detector();
1542
1543 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1544   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1545     base::FilePath path =
1546         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1547     printing::PrintedDocument::set_debug_dump_path(path);
1548   }
1549 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1550
1551   HandleTestParameters(parsed_command_line());
1552   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1553       base::debug::BeingDebugged());
1554
1555   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1556       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1557   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1558       browser_process_->GetApplicationLocale());
1559
1560   // Start watching for hangs during startup. We disarm this hang detector when
1561   // ThreadWatcher takes over or when browser is shutdown or when
1562   // startup_watcher_ is deleted.
1563   metrics::MetricsService::SetExecutionPhase(
1564       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1565       g_browser_process->local_state());
1566   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1567
1568   // On mobile, need for clean shutdown arises only when the application comes
1569   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1570   // http://crbug.com/179143
1571 #if !defined(OS_ANDROID)
1572   // Start watching for a hang.
1573   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1574 #endif  // !defined(OS_ANDROID)
1575
1576 #if defined(ENABLE_PRINT_PREVIEW)
1577   // Create the instance of the cloud print proxy service so that it can launch
1578   // the service process if needed. This is needed because the service process
1579   // might have shutdown because an update was available.
1580   // TODO(torne): this should maybe be done with
1581   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1582   // instead?
1583   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1584 #endif  // defined(ENABLE_PRINT_PREVIEW)
1585
1586   // Start watching all browser threads for responsiveness.
1587   metrics::MetricsService::SetExecutionPhase(
1588       metrics::MetricsService::THREAD_WATCHER_START,
1589       g_browser_process->local_state());
1590   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1591
1592 #if defined(OS_ANDROID)
1593   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1594 #endif  // defined(OS_ANDROID)
1595
1596 #if !defined(DISABLE_NACL)
1597   BrowserThread::PostTask(
1598       BrowserThread::IO,
1599       FROM_HERE,
1600       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1601 #endif  // !defined(DISABLE_NACL)
1602
1603   // Make sure initial prefs are recorded
1604   PrefMetricsService::Factory::GetForProfile(profile_);
1605
1606   PreBrowserStart();
1607
1608   // Instantiate the notification UI manager, as this triggers a perf timer
1609   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1610   // triggering the timer and call that explicitly in the approprate place.
1611   // http://crbug.com/105065.
1612   browser_process_->notification_ui_manager();
1613
1614   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1615   // data source is based on the Component Updater.
1616   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1617
1618   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1619     RegisterComponentsForUpdate();
1620
1621 #if defined(OS_ANDROID)
1622   variations::VariationsService* variations_service =
1623       browser_process_->variations_service();
1624   if (variations_service) {
1625     // Just initialize the policy prefs service here. Variations seed fetching
1626     // will be initialized when the app enters foreground mode.
1627     variations_service->set_policy_pref_service(profile_->GetPrefs());
1628   }
1629   translate::TranslateDownloadManager::RequestLanguageList(
1630       profile_->GetPrefs());
1631
1632 #else
1633   // Most general initialization is behind us, but opening a
1634   // tab and/or session restore and such is still to be done.
1635   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1636
1637   // We are in regular browser boot sequence. Open initial tabs and enter the
1638   // main message loop.
1639   std::vector<Profile*> last_opened_profiles;
1640 #if !defined(OS_CHROMEOS)
1641   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1642   // them this early as the cryptohome hasn't yet been mounted (which happens
1643   // only once we log in).
1644   last_opened_profiles =
1645       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1646 #endif  // defined(OS_CHROMEOS)
1647
1648   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1649                       base::TimeTicks::Now() - start_time_step2);
1650
1651   // This step is costly and is already measured in
1652   // Startup.StartupBrowserCreator_Start.
1653   const bool started = browser_creator_->Start(
1654       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1655   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1656   if (started) {
1657 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1658     // Initialize autoupdate timer. Timer callback costs basically nothing
1659     // when browser is not in persistent mode, so it's OK to let it ride on
1660     // the main thread. This needs to be done here because we don't want
1661     // to start the timer when Chrome is run inside a test harness.
1662     browser_process_->StartAutoupdateTimer();
1663 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1664
1665 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1666     // On Linux, the running exe will be updated if an upgrade becomes
1667     // available while the browser is running.  We need to save the last
1668     // modified time of the exe, so we can compare to determine if there is
1669     // an upgrade while the browser is kept alive by a persistent extension.
1670     upgrade_util::SaveLastModifiedTimeOfExe();
1671 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1672
1673     // Record now as the last successful chrome start.
1674     GoogleUpdateSettings::SetLastRunTime();
1675
1676 #if defined(OS_MACOSX)
1677     // Call Recycle() here as late as possible, before going into the loop
1678     // because Start() will add things to it while creating the main window.
1679     if (parameters().autorelease_pool)
1680       parameters().autorelease_pool->Recycle();
1681 #endif  // defined(OS_MACOSX)
1682
1683     const base::TimeDelta delta = base::TimeTicks::Now() - browser_open_start;
1684     startup_metric_utils::RecordBrowserOpenTabsDelta(delta);
1685
1686     // If we're running tests (ui_task is non-null), then we don't want to
1687     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1688     // RequestLanguageList
1689     if (parameters().ui_task == NULL) {
1690       // Request new variations seed information from server.
1691       variations::VariationsService* variations_service =
1692           browser_process_->variations_service();
1693       if (variations_service)
1694         variations_service->PerformPreMainMessageLoopStartup();
1695
1696       translate::TranslateDownloadManager::RequestLanguageList(
1697           profile_->GetPrefs());
1698     }
1699   }
1700   run_message_loop_ = started;
1701   browser_creator_.reset();
1702
1703 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1704   if (g_browser_process->metrics_service()->reporting_active())
1705     content::StartPowerUsageMonitor();
1706 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1707
1708   process_power_collector_.reset(new ProcessPowerCollector);
1709   process_power_collector_->Initialize();
1710 #endif  // !defined(OS_ANDROID)
1711
1712   PostBrowserStart();
1713
1714   if (parameters().ui_task) {
1715     parameters().ui_task->Run();
1716     delete parameters().ui_task;
1717     run_message_loop_ = false;
1718   }
1719 #if defined(OS_ANDROID)
1720   // We never run the C++ main loop on Android, since the UI thread message
1721   // loop is controlled by the OS, so this is as close as we can get to
1722   // the start of the main loop.
1723   if (result_code_ <= 0) {
1724     RecordBrowserStartupTime();
1725   }
1726 #endif  // defined(OS_ANDROID)
1727
1728 #if !defined(OS_ANDROID)
1729   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1730                       base::TimeTicks::Now() - start_time_step3);
1731 #endif  // !defined(OS_ANDROID)
1732
1733   return result_code_;
1734 }
1735
1736 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1737   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1738 #if defined(OS_ANDROID)
1739   // Chrome on Android does not use default MessageLoop. It has its own
1740   // Android specific MessageLoop
1741   NOTREACHED();
1742   return true;
1743 #else
1744   // Set the result code set in PreMainMessageLoopRun or set above.
1745   *result_code = result_code_;
1746   if (!run_message_loop_)
1747     return true;  // Don't run the default message loop.
1748
1749   // These should be invoked as close to the start of the browser's
1750   // UI thread message loop as possible to get a stable measurement
1751   // across versions.
1752   RecordBrowserStartupTime();
1753
1754   DCHECK(base::MessageLoopForUI::IsCurrent());
1755   base::RunLoop run_loop;
1756
1757   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1758
1759   metrics::MetricsService::SetExecutionPhase(
1760       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1761       g_browser_process->local_state());
1762   run_loop.Run();
1763
1764   return true;
1765 #endif  // defined(OS_ANDROID)
1766 }
1767
1768 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1769   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1770 #if defined(OS_ANDROID)
1771   // Chrome on Android does not use default MessageLoop. It has its own
1772   // Android specific MessageLoop
1773   NOTREACHED();
1774 #else
1775   // Start watching for jank during shutdown. It gets disarmed when
1776   // |shutdown_watcher_| object is destructed.
1777   metrics::MetricsService::SetExecutionPhase(
1778       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1779       g_browser_process->local_state());
1780   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1781
1782   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1783   startup_watcher_->Disarm();
1784
1785   // Remove observers attached to D-Bus clients before DbusThreadManager is
1786   // shut down.
1787   process_power_collector_.reset();
1788
1789 #if !defined(OS_IOS)
1790   webusb_detector_.reset();
1791   webusb_browser_client_.reset();
1792 #endif
1793
1794   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1795     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1796
1797   // Some tests don't set parameters.ui_task, so they started translate
1798   // language fetch that was never completed so we need to cleanup here
1799   // otherwise it will be done by the destructor in a wrong thread.
1800   TranslateService::Shutdown(parameters().ui_task == NULL);
1801
1802   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1803     process_singleton_->Cleanup();
1804
1805   // Stop all tasks that might run on WatchDogThread.
1806   ThreadWatcherList::StopWatchingAll();
1807
1808   browser_process_->metrics_service()->Stop();
1809
1810   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1811   browser_process_->StartTearDown();
1812 #endif  // defined(OS_ANDROID)
1813 }
1814
1815 void ChromeBrowserMainParts::PostDestroyThreads() {
1816 #if defined(OS_ANDROID)
1817   // On Android, there is no quit/exit. So the browser's main message loop will
1818   // not finish.
1819   NOTREACHED();
1820 #else
1821   browser_process_->PostDestroyThreads();
1822   // browser_shutdown takes care of deleting browser_process, so we need to
1823   // release it.
1824   ignore_result(browser_process_.release());
1825   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1826   master_prefs_.reset();
1827   process_singleton_.reset();
1828   device_event_log::Shutdown();
1829
1830   // We need to do this check as late as possible, but due to modularity, this
1831   // may be the last point in Chrome.  This would be more effective if done at
1832   // a higher level on the stack, so that it is impossible for an early return
1833   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1834   // paths from content/browser/browser_main.
1835   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1836
1837 #if defined(OS_CHROMEOS)
1838   chromeos::CrosSettings::Shutdown();
1839 #endif  // defined(OS_CHROMEOS)
1840 #endif  // defined(OS_ANDROID)
1841 }
1842
1843 // Public members:
1844
1845 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1846   chrome_extra_parts_.push_back(parts);
1847 }