chrome/browser/chrome_browser_main.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_browser_main.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/at_exit.h"
  12 #include "base/bind.h"
  13 #include "base/command_line.h"
  14 #include "base/debug/crash_logging.h"
  15 #include "base/debug/debugger.h"
  16 #include "base/files/file_path.h"
  17 #include "base/files/file_util.h"
  18 #include "base/metrics/field_trial.h"
  19 #include "base/metrics/histogram_macros.h"
  20 #include "base/path_service.h"
  21 #include "base/prefs/json_pref_store.h"
  22 #include "base/prefs/pref_registry_simple.h"
  23 #include "base/prefs/pref_service.h"
  24 #include "base/prefs/pref_value_store.h"
  25 #include "base/prefs/scoped_user_pref_update.h"
  26 #include "base/process/process_info.h"
  27 #include "base/profiler/scoped_profile.h"
  28 #include "base/profiler/scoped_tracker.h"
  29 #include "base/run_loop.h"
  30 #include "base/strings/string_number_conversions.h"
  31 #include "base/strings/string_piece.h"
  32 #include "base/strings/string_split.h"
  33 #include "base/strings/sys_string_conversions.h"
  34 #include "base/strings/utf_string_conversions.h"
  35 #include "base/sys_info.h"
  36 #include "base/threading/platform_thread.h"
  37 #include "base/time/default_tick_clock.h"
  38 #include "base/time/time.h"
  39 #include "base/trace_event/trace_event.h"
  40 #include "base/values.h"
  41 #include "build/build_config.h"
  42 #include "cc/base/switches.h"
  43 #include "chrome/browser/about_flags.h"
  44 #include "chrome/browser/after_startup_task_utils.h"
  45 #include "chrome/browser/browser_process.h"
  46 #include "chrome/browser/browser_process_impl.h"
  47 #include "chrome/browser/browser_process_platform_part.h"
  48 #include "chrome/browser/browser_shutdown.h"
  49 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  50 #include "chrome/browser/component_updater/cld_component_installer.h"
  51 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  52 #include "chrome/browser/component_updater/flash_component_installer.h"
  53 #include "chrome/browser/component_updater/recovery_component_installer.h"
  54 #include "chrome/browser/component_updater/supervised_user_whitelist_installer.h"
  55 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  56 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  57 #include "chrome/browser/defaults.h"
  58 #include "chrome/browser/first_run/first_run.h"
  59 #include "chrome/browser/first_run/upgrade_util.h"
  60 #include "chrome/browser/google/google_search_counter.h"
  61 #include "chrome/browser/gpu/gl_string_manager.h"
  62 #include "chrome/browser/gpu/three_d_api_observer.h"
  63 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  64 #include "chrome/browser/memory/oom_priority_manager.h"
  65 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  66 #include "chrome/browser/metrics/metrics_services_manager.h"
  67 #include "chrome/browser/metrics/thread_watcher.h"
  68 #include "chrome/browser/metrics/variations/variations_service.h"
  69 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  70 #include "chrome/browser/net/chrome_net_log.h"
  71 #include "chrome/browser/net/crl_set_fetcher.h"
  72 #include "chrome/browser/notifications/desktop_notification_service.h"
  73 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
  74 #include "chrome/browser/performance_monitor/performance_monitor.h"
  75 #include "chrome/browser/plugins/plugin_prefs.h"
  76 #include "chrome/browser/power/process_power_collector.h"
  77 #include "chrome/browser/pref_service_flags_storage.h"
  78 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  79 #include "chrome/browser/prefs/command_line_pref_store.h"
  80 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  81 #include "chrome/browser/prefs/pref_metrics_service.h"
  82 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  83 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  84 #include "chrome/browser/process_singleton.h"
  85 #include "chrome/browser/profiles/profile.h"
  86 #include "chrome/browser/profiles/profile_manager.h"
  87 #include "chrome/browser/profiles/profiles_state.h"
  88 #include "chrome/browser/shell_integration.h"
  89 #include "chrome/browser/tracing/navigation_tracing.h"
  90 #include "chrome/browser/translate/translate_service.h"
  91 #include "chrome/browser/ui/app_list/app_list_service.h"
  92 #include "chrome/browser/ui/browser.h"
  93 #include "chrome/browser/ui/browser_finder.h"
  94 #include "chrome/browser/ui/host_desktop.h"
  95 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  96 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  97 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  98 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  99 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
 100 #include "chrome/common/chrome_constants.h"
 101 #include "chrome/common/chrome_paths.h"
 102 #include "chrome/common/chrome_result_codes.h"
 103 #include "chrome/common/chrome_switches.h"
 104 #include "chrome/common/chrome_version_info.h"
 105 #include "chrome/common/crash_keys.h"
 106 #include "chrome/common/env_vars.h"
 107 #include "chrome/common/logging_chrome.h"
 108 #include "chrome/common/net/net_resource_provider.h"
 109 #include "chrome/common/pref_names.h"
 110 #include "chrome/common/profiling.h"
 111 #include "chrome/common/variations/variations_util.h"
 112 #include "chrome/grit/generated_resources.h"
 113 #include "chrome/installer/util/google_update_settings.h"
 114 #include "components/component_updater/component_updater_service.h"
 115 #include "components/device_event_log/device_event_log.h"
 116 #include "components/google/core/browser/google_util.h"
 117 #include "components/language_usage_metrics/language_usage_metrics.h"
 118 #include "components/metrics/call_stack_profile_metrics_provider.h"
 119 #include "components/metrics/metrics_service.h"
 120 #include "components/metrics/profiler/tracking_synchronizer.h"
 121 #include "components/nacl/browser/nacl_browser.h"
 122 #include "components/rappor/rappor_service.h"
 123 #include "components/signin/core/common/profile_management_switches.h"
 124 #include "components/startup_metric_utils/startup_metric_utils.h"
 125 #include "components/translate/content/browser/browser_cld_utils.h"
 126 #include "components/translate/content/common/cld_data_source.h"
 127 #include "components/translate/core/browser/translate_download_manager.h"
 128 #include "components/variations/net/variations_http_header_provider.h"
 129 #include "components/variations/variations_associated_data.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/win/windows_version.h"
 180 #include "chrome/browser/browser_util_win.h"
 181 #include "chrome/browser/chrome_browser_main_win.h"
 182 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 183 #include "chrome/browser/component_updater/caps_installer_win.h"
 184 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 185 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 186 #include "chrome/browser/first_run/upgrade_util_win.h"
 187 #include "chrome/browser/ui/network_profile_bubble.h"
 188 #include "chrome/installer/util/helper.h"
 189 #include "chrome/installer/util/install_util.h"
 190 #include "chrome/installer/util/shell_util.h"
 191 #include "components/browser_watcher/exit_funnel_win.h"
 192 #include "net/base/net_util.h"
 193 #include "ui/base/l10n/l10n_util_win.h"
 194 #include "ui/gfx/win/dpi.h"
 195 #include "ui/shell_dialogs/select_file_dialog.h"
 196 #endif  // defined(OS_WIN)
 197
 198 #if defined(OS_MACOSX)
 199 #include <Security/Security.h>
 200
 201 #include "base/mac/scoped_nsautorelease_pool.h"
 202 #include "chrome/browser/mac/keystone_glue.h"
 203 #endif  // defined(OS_MACOSX)
 204
 205 #if !defined(OS_IOS)
 206 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 207 #endif  // !defined(OS_IOS)
 208
 209 #if !defined(DISABLE_NACL)
 210 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 211 #include "components/nacl/browser/nacl_process_host.h"
 212 #endif  // !defined(DISABLE_NACL)
 213
 214 #if defined(ENABLE_EXTENSIONS)
 215 #include "chrome/browser/extensions/startup_helper.h"
 216 #include "extensions/browser/extension_protocols.h"
 217 #include "extensions/common/features/feature_provider.h"
 218 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 219 #endif  // defined(ENABLE_EXTENSIONS)
 220
 221 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 222 #include "printing/printed_document.h"
 223 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 224
 225 #if defined(ENABLE_RLZ)
 226 #include "chrome/browser/rlz/chrome_rlz_tracker_delegate.h"
 227 #include "components/rlz/rlz_tracker.h"
 228 #endif  // defined(ENABLE_RLZ)
 229
 230 #if defined(ENABLE_WEBRTC)
 231 #include "chrome/browser/media/webrtc_log_util.h"
 232 #endif  // defined(ENABLE_WEBRTC)
 233
 234 #if defined(USE_AURA)
 235 #include "ui/aura/env.h"
 236 #endif  // defined(USE_AURA)
 237
 238 using content::BrowserThread;
 239
 240 namespace {
 241
 242 // This function provides some ways to test crash and assertion handling
 243 // behavior of the program.
 244 void HandleTestParameters(const base::CommandLine& command_line) {
 245   // This parameter causes a null pointer crash (crash reporter trigger).
 246   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 247     int* bad_pointer = NULL;
 248     *bad_pointer = 0;
 249   }
 250 }
 251
 252 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 253 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 254                         const std::vector<GURL>& new_tabs) {
 255   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 256        it != new_tabs.end(); ++it) {
 257     if (it->is_valid())
 258       browser_creator->AddFirstRunTab(*it);
 259   }
 260 }
 261 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 262
 263 // Returns the new local state object, guaranteed non-NULL.
 264 // |local_state_task_runner| must be a shutdown-blocking task runner.
 265 PrefService* InitializeLocalState(
 266     base::SequencedTaskRunner* local_state_task_runner,
 267     const base::CommandLine& parsed_command_line) {
 268   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 269
 270   // Load local state.  This includes the application locale so we know which
 271   // locale dll to load.  This also causes local state prefs to be registered.
 272   PrefService* local_state = g_browser_process->local_state();
 273   DCHECK(local_state);
 274
 275 #if defined(OS_WIN)
 276   if (first_run::IsChromeFirstRun()) {
 277     // During first run we read the google_update registry key to find what
 278     // language the user selected when downloading the installer. This
 279     // becomes our default language in the prefs.
 280     // Other platforms obey the system locale.
 281     base::string16 install_lang;
 282     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 283       local_state->SetString(prefs::kApplicationLocale,
 284                              base::UTF16ToASCII(install_lang));
 285     }
 286   }
 287 #endif  // defined(OS_WIN)
 288
 289   // If the local state file for the current profile doesn't exist and the
 290   // parent profile command line flag is present, then we should inherit some
 291   // local state from the parent profile.
 292   // Checking that the local state file for the current profile doesn't exist
 293   // is the most robust way to determine whether we need to inherit or not
 294   // since the parent profile command line flag can be present even when the
 295   // current profile is not a new one, and in that case we do not want to
 296   // inherit and reset the user's setting.
 297   //
 298   // TODO(mnissler): We should probably just instantiate a
 299   // JSONPrefStore here instead of an entire PrefService. Once this is
 300   // addressed, the call to browser_prefs::RegisterLocalState can move
 301   // to chrome_prefs::CreateLocalState.
 302   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 303     base::FilePath local_state_path;
 304     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 305     bool local_state_file_exists = base::PathExists(local_state_path);
 306     if (!local_state_file_exists) {
 307       base::FilePath parent_profile =
 308           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 309       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 310       scoped_ptr<PrefService> parent_local_state(
 311           chrome_prefs::CreateLocalState(
 312               parent_profile,
 313               local_state_task_runner,
 314               g_browser_process->policy_service(),
 315               registry,
 316               false));
 317       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 318       // Right now, we only inherit the locale setting from the parent profile.
 319       local_state->SetString(
 320           prefs::kApplicationLocale,
 321           parent_local_state->GetString(prefs::kApplicationLocale));
 322     }
 323   }
 324
 325 #if defined(OS_CHROMEOS)
 326   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 327     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 328     // Ensure that we start with owner's locale.
 329     if (!owner_locale.empty() &&
 330         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 331         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 332       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 333     }
 334   }
 335 #endif  // defined(OS_CHROMEOS)
 336
 337   return local_state;
 338 }
 339
 340 // Initializes the primary profile, possibly doing some user prompting to pick
 341 // a fallback profile. Returns the newly created profile, or NULL if startup
 342 // should not continue.
 343 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 344                               const base::FilePath& user_data_dir,
 345                               const base::CommandLine& parsed_command_line) {
 346   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 347   TRACK_SCOPED_REGION(
 348       "Startup", "ChromeBrowserMainParts::CreatePrimaryProfile");
 349
 350   base::Time start = base::Time::Now();
 351   if (profiles::IsMultipleProfilesEnabled() &&
 352       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 353     profiles::SetLastUsedProfile(
 354         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 355     // Clear kProfilesLastActive since the user only wants to launch a specific
 356     // profile.
 357     ListPrefUpdate update(g_browser_process->local_state(),
 358                           prefs::kProfilesLastActive);
 359     base::ListValue* profile_list = update.Get();
 360     profile_list->Clear();
 361   }
 362
 363   Profile* profile = NULL;
 364 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 365   // On ChromeOS and Android the ProfileManager will use the same path as the
 366   // one we got passed. GetActiveUserProfile will therefore use the correct path
 367   // automatically.
 368   DCHECK_EQ(user_data_dir.value(),
 369             g_browser_process->profile_manager()->user_data_dir().value());
 370   profile = ProfileManager::GetActiveUserProfile();
 371 #else
 372   base::FilePath profile_path =
 373       GetStartupProfilePath(user_data_dir, parsed_command_line);
 374
 375   // Without NewAvatarMenu, replace guest with any existing profile.
 376   if (!switches::IsNewAvatarMenu() &&
 377       profile_path == ProfileManager::GetGuestProfilePath()) {
 378     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 379         GetPathOfProfileAtIndex(0);
 380   }
 381   profile = g_browser_process->profile_manager()->GetProfile(
 382       profile_path);
 383
 384   // If we're using the --new-profile-management flag and this profile is
 385   // signed out, then we should show the user manager instead. By switching
 386   // the active profile to the guest profile we ensure that no
 387   // browser windows will be opened for the guest profile.
 388   if (switches::IsNewProfileManagement() &&
 389       profile &&
 390       !profile->IsGuestSession()) {
 391     ProfileInfoCache& cache =
 392         g_browser_process->profile_manager()->GetProfileInfoCache();
 393     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 394
 395     if (profile_index != std::string::npos &&
 396         cache.ProfileIsSigninRequiredAtIndex(profile_index)) {
 397       profile = g_browser_process->profile_manager()->GetProfile(
 398           ProfileManager::GetGuestProfilePath());
 399     }
 400   }
 401 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID)
 402   if (profile) {
 403     UMA_HISTOGRAM_LONG_TIMES(
 404         "Startup.CreateFirstProfile", base::Time::Now() - start);
 405     return profile;
 406   }
 407
 408 #if !defined(OS_WIN)
 409   // TODO(port): fix this.  See comments near the definition of
 410   // user_data_dir.  It is better to CHECK-fail here than it is to
 411   // silently exit because of missing code in the above test.
 412   CHECK(profile) << "Cannot get default profile.";
 413 #endif  // !defined(OS_WIN)
 414
 415   return NULL;
 416 }
 417
 418 #if defined(OS_MACOSX)
 419 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 420                           SecKeychainCallbackInfo* info, void* context) {
 421   return noErr;
 422 }
 423 #endif  // defined(OS_MACOSX)
 424
 425 void RegisterComponentsForUpdate() {
 426   component_updater::ComponentUpdateService* cus =
 427       g_browser_process->component_updater();
 428
 429   // Registration can be before or after cus->Start() so it is ok to post
 430   // a task to the UI thread to do registration once you done the necessary
 431   // file IO to know you existing component version.
 432 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 433   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 434   RegisterPepperFlashComponent(cus);
 435   RegisterSwiftShaderComponent(cus);
 436   RegisterWidevineCdmComponent(cus);
 437 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 438
 439 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 440 #if defined(OS_CHROMEOS)
 441   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 442   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 443   // installer when running on Linux. See crbug.com/422121 for more details.
 444   if (!base::SysInfo::IsRunningOnChromeOS())
 445 #endif  // defined(OS_CHROMEOS)
 446     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 447 #endif  // !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 448
 449   // Registration of the CLD Component is a no-op unless the CLD data source has
 450   // been configured to be the "Component" data source.
 451   RegisterCldComponent(cus);
 452
 453   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 454       g_browser_process->supervised_user_whitelist_installer();
 455   whitelist_installer->RegisterComponents();
 456
 457   base::FilePath path;
 458   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 459 #if defined(OS_ANDROID)
 460     // The CRLSet component was enabled for some releases. This code attempts to
 461     // delete it from the local disk of those how may have downloaded it.
 462     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 463 #elif !defined(OS_CHROMEOS)
 464     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 465     // network.
 466     // For Chrome OS this registration is delayed until user login.
 467     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 468     // Registration of the EV Whitelist component here is not necessary for:
 469     // 1. Android: Because it currently does not have the EV indicator.
 470     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 471     RegisterEVWhitelistComponent(cus, path);
 472 #endif  // defined(OS_ANDROID)
 473   }
 474
 475 #if defined(OS_WIN)
 476 #if defined(GOOGLE_CHROME_BUILD)
 477   RegisterSwReporterComponent(cus);
 478 #endif  // defined(GOOGLE_CHROME_BUILD)
 479   RegisterCAPSComponent(cus);
 480 #endif  // defined(OS_WIN)
 481 }
 482
 483 #if !defined(OS_ANDROID)
 484 bool ProcessSingletonNotificationCallback(
 485     const base::CommandLine& command_line,
 486     const base::FilePath& current_directory) {
 487   // Drop the request if the browser process is already in shutdown path.
 488   if (!g_browser_process || g_browser_process->IsShuttingDown()) {
 489 #if defined(OS_WIN)
 490     browser_watcher::ExitFunnel::RecordSingleEvent(
 491         chrome::kBrowserExitCodesRegistryPath,
 492         L"ProcessSingletonIsShuttingDown");
 493 #endif  // defined(OS_WIN)
 494
 495     return false;
 496   }
 497
 498   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 499     std::string start_time_string =
 500         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 501     int64 remote_start_time;
 502     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 503       base::TimeDelta elapsed =
 504           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 505       if (command_line.HasSwitch(switches::kFastStart)) {
 506         UMA_HISTOGRAM_LONG_TIMES(
 507             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 508       } else {
 509         UMA_HISTOGRAM_LONG_TIMES(
 510             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 511       }
 512     }
 513   }
 514
 515   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 516       command_line);
 517
 518   base::FilePath user_data_dir =
 519       g_browser_process->profile_manager()->user_data_dir();
 520   base::FilePath startup_profile_dir =
 521       GetStartupProfilePath(user_data_dir, command_line);
 522
 523   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 524       command_line, current_directory, startup_profile_dir);
 525   return true;
 526 }
 527 #endif  // !defined(OS_ANDROID)
 528
 529 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 530   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 531     std::string port_str =
 532         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 533     int port;
 534     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 535       g_browser_process->CreateDevToolsHttpProtocolHandler(
 536           chrome::HOST_DESKTOP_TYPE_NATIVE,
 537           "127.0.0.1",
 538           static_cast<uint16>(port));
 539     } else {
 540       DLOG(WARNING) << "Invalid http debugger port number " << port;
 541     }
 542   }
 543 }
 544
 545 }  // namespace
 546
 547 namespace chrome_browser {
 548
 549 // This error message is not localized because we failed to load the
 550 // localization data files.
 551 #if defined(OS_WIN)
 552 const char kMissingLocaleDataTitle[] = "Missing File Error";
 553 #endif  // defined(OS_WIN)
 554
 555 #if defined(OS_WIN)
 556 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 557 const char kMissingLocaleDataMessage[] =
 558     "Unable to find locale data files. Please reinstall.";
 559 #endif  // defined(OS_WIN)
 560
 561 }  // namespace chrome_browser
 562
 563 // BrowserMainParts ------------------------------------------------------------
 564
 565 ChromeBrowserMainParts::ChromeBrowserMainParts(
 566     const content::MainFunctionParams& parameters)
 567     : parameters_(parameters),
 568       parsed_command_line_(parameters.command_line),
 569       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 570       startup_watcher_(new StartupTimeBomb()),
 571       shutdown_watcher_(new ShutdownWatcherHelper()),
 572       browser_field_trials_(parameters.command_line),
 573       profile_(NULL),
 574       run_message_loop_(true),
 575       notify_result_(ProcessSingleton::PROCESS_NONE),
 576       local_state_(NULL),
 577       restart_last_session_(false) {
 578   // If we're running tests (ui_task is non-null).
 579   if (parameters.ui_task)
 580     browser_defaults::enable_help_app = false;
 581
 582   // Chrome disallows cookies by default. All code paths that want to use
 583   // cookies need to go through one of Chrome's URLRequestContexts which have
 584   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 585   net::URLRequest::SetDefaultCookiePolicyToBlock();
 586 }
 587
 588 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 589   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 590     delete chrome_extra_parts_[i];
 591   chrome_extra_parts_.clear();
 592 }
 593
 594 // This will be called after the command-line has been mutated by about:flags
 595 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 596   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 597   // Must initialize metrics after labs have been converted into switches,
 598   // but before field trials are set up (so that client ID is available for
 599   // one-time randomized field trials).
 600
 601   // Initialize FieldTrialList to support FieldTrials that use one-time
 602   // randomization.
 603   metrics::MetricsService* metrics = browser_process_->metrics_service();
 604   field_trial_list_.reset(
 605       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 606
 607   const base::CommandLine* command_line =
 608       base::CommandLine::ForCurrentProcess();
 609   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 610       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 611     base::FieldTrial::EnableBenchmarking();
 612   }
 613
 614   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 615     bool result = chrome_variations::AssociateParamsFromString(
 616         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 617     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 618                   << " list specified.";
 619   }
 620
 621   // Ensure any field trials specified on the command line are initialized.
 622   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 623     std::set<std::string> unforceable_field_trials;
 624 #if defined(OFFICIAL_BUILD)
 625     unforceable_field_trials.insert("SettingsEnforcement");
 626 #endif  // defined(OFFICIAL_BUILD)
 627
 628     // Create field trials without activating them, so that this behaves in a
 629     // consistent manner with field trials created from the server.
 630     bool result = base::FieldTrialList::CreateTrialsFromString(
 631         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 632         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 633         unforceable_field_trials);
 634     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 635                   << " list specified.";
 636   }
 637
 638 #if !defined(GOOGLE_CHROME_BUILD)
 639   if (!command_line->HasSwitch(switches::kDisableFieldTrialTestingConfig) &&
 640       !command_line->HasSwitch(switches::kForceFieldTrials) &&
 641       !command_line->HasSwitch(switches::kVariationsServerURL))
 642     chrome_variations::AssociateDefaultFieldTrialConfig();
 643 #endif  // !defined(GOOGLE_CHROME_BUILD)
 644
 645   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 646     // Create default variation ids which will always be included in the
 647     // X-Client-Data request header.
 648     variations::VariationsHttpHeaderProvider* provider =
 649         variations::VariationsHttpHeaderProvider::GetInstance();
 650     bool result = provider->SetDefaultVariationIds(
 651         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 652     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 653                   << " list specified.";
 654     metrics->AddSyntheticTrialObserver(provider);
 655   }
 656   chrome_variations::VariationsService* variations_service =
 657       browser_process_->variations_service();
 658   if (variations_service)
 659     variations_service->CreateTrialsFromSeed();
 660
 661   // This must be called after |local_state_| is initialized.
 662   browser_field_trials_.SetupFieldTrials();
 663
 664   // Enable Navigation Tracing only if a trace upload url is specified.
 665   if (command_line->HasSwitch(switches::kEnableNavigationTracing) &&
 666       command_line->HasSwitch(switches::kTraceUploadURL)) {
 667     tracing::SetupNavigationTracing();
 668   }
 669
 670   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 671   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 672   // Even though base::Bind does AddRef and Release, the object will not be
 673   // deleted after the Task is executed.
 674   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 675
 676   // Now that field trials have been created, initializes metrics recording.
 677   metrics->InitializeMetricsRecordingState();
 678
 679   const chrome::VersionInfo::Channel channel =
 680       chrome::VersionInfo::GetChannel();
 681
 682   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 683   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 684   if (channel == chrome::VersionInfo::CHANNEL_UNKNOWN ||
 685       channel == chrome::VersionInfo::CHANNEL_CANARY ||
 686       channel == chrome::VersionInfo::CHANNEL_DEV) {
 687     media::AudioManager::EnableHangMonitor();
 688   }
 689
 690   // Enable profiler instrumentation depending on the channel.
 691   switch (channel) {
 692     case chrome::VersionInfo::CHANNEL_UNKNOWN:
 693     case chrome::VersionInfo::CHANNEL_CANARY:
 694       tracked_objects::ScopedTracker::Enable();
 695       break;
 696
 697     case chrome::VersionInfo::CHANNEL_DEV:
 698     case chrome::VersionInfo::CHANNEL_BETA:
 699     case chrome::VersionInfo::CHANNEL_STABLE:
 700       // Don't enable instrumentation.
 701       break;
 702   }
 703 }
 704
 705 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 706
 707 void ChromeBrowserMainParts::StartMetricsRecording() {
 708   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 709
 710   g_browser_process->metrics_service()->CheckForClonedInstall(
 711       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 712
 713   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 714 }
 715
 716 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 717   // Don't record any metrics if UI was displayed before this point e.g.
 718   // warning dialogs.
 719   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 720     return;
 721
 722 #if defined(OS_ANDROID)
 723   // On Android the first run is handled in Java code, and the C++ side of
 724   // Chrome doesn't know if this is the first run. This will cause some
 725   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 726   // rare).
 727   bool is_first_run = false;
 728 #else
 729   bool is_first_run = first_run::IsChromeFirstRun();
 730 #endif  // defined(OS_ANDROID)
 731
 732 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 733 // platforms.
 734 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 735   const base::Time process_creation_time =
 736       base::CurrentProcessInfo::CreationTime();
 737
 738   if (!is_first_run && !process_creation_time.is_null()) {
 739     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 740     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 741   }
 742 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 743
 744   // Record collected startup metrics.
 745   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 746 }
 747
 748 // -----------------------------------------------------------------------------
 749 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 750
 751 #if defined(OS_WIN)
 752 #define DLLEXPORT __declspec(dllexport)
 753
 754 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 755 extern "C" {
 756 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 757 }
 758
 759 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 760   // Need an instance of AtExitManager to handle singleton creations and
 761   // deletions.  We need this new instance because, the old instance created
 762   // in ChromeMain() got destructed when the function returned.
 763   base::AtExitManager exit_manager;
 764   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 765 }
 766 #endif
 767
 768 // content::BrowserMainParts implementation ------------------------------------
 769
 770 void ChromeBrowserMainParts::PreEarlyInitialization() {
 771   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 772   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 773     chrome_extra_parts_[i]->PreEarlyInitialization();
 774 }
 775
 776 void ChromeBrowserMainParts::PostEarlyInitialization() {
 777   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 778   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 779     chrome_extra_parts_[i]->PostEarlyInitialization();
 780 }
 781
 782 void ChromeBrowserMainParts::ToolkitInitialized() {
 783   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 784   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 785     chrome_extra_parts_[i]->ToolkitInitialized();
 786 }
 787
 788 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 789   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 790
 791   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 792     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 793 }
 794
 795 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 796   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 797
 798   // device_event_log must be initialized after the message loop. Calls to
 799   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 800   // platforms (e.g. chromeos) may have already initialized this.
 801   if (!device_event_log::IsInitialized())
 802     device_event_log::Initialize(0 /* default max entries */);
 803
 804   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 805     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 806 }
 807
 808 int ChromeBrowserMainParts::PreCreateThreads() {
 809   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 810   result_code_ = PreCreateThreadsImpl();
 811
 812   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 813 #if !defined(OS_ANDROID)
 814     // These members must be initialized before exiting this function normally.
 815     DCHECK(master_prefs_.get());
 816     DCHECK(browser_creator_.get());
 817 #endif  // !defined(OS_ANDROID)
 818     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 819       chrome_extra_parts_[i]->PreCreateThreads();
 820   }
 821
 822   return result_code_;
 823 }
 824
 825 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 826   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 827   run_message_loop_ = false;
 828 #if !defined(OS_ANDROID)
 829   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 830 #endif  // !defined(OS_ANDROID)
 831   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 832     return chrome::RESULT_CODE_MISSING_DATA;
 833
 834   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 835   MediaCaptureDevicesDispatcher::GetInstance();
 836
 837   // Android's first run is done in Java instead of native.
 838 #if !defined(OS_ANDROID)
 839   process_singleton_.reset(new ChromeProcessSingleton(
 840       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 841
 842   // Cache first run state early.
 843   first_run::IsChromeFirstRun();
 844 #endif  // !defined(OS_ANDROID)
 845
 846   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 847       JsonPrefStore::GetTaskRunnerForFile(
 848           base::FilePath(chrome::kLocalStorePoolName),
 849           BrowserThread::GetBlockingPool());
 850
 851   {
 852     TRACE_EVENT0("startup",
 853       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 854     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 855                                                   parsed_command_line()));
 856   }
 857
 858   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 859     TRACE_EVENT0("startup",
 860         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 861     // User wants to override default tracking status.
 862     std::string flag =
 863       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 864     // Default to basic profiling (no parent child support).
 865     tracked_objects::ThreadData::Status status =
 866           tracked_objects::ThreadData::PROFILING_ACTIVE;
 867     if (flag.compare("0") != 0)
 868       status = tracked_objects::ThreadData::DEACTIVATED;
 869     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 870   }
 871
 872   local_state_ = InitializeLocalState(
 873       local_state_task_runner.get(), parsed_command_line());
 874
 875 #if !defined(OS_ANDROID)
 876   // These members must be initialized before returning from this function.
 877   master_prefs_.reset(new first_run::MasterPrefs);
 878   // Android doesn't use StartupBrowserCreator.
 879   browser_creator_.reset(new StartupBrowserCreator);
 880   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 881   chrome::UMABrowsingActivityObserver::Init();
 882 #endif  // !defined(OS_ANDROID)
 883
 884 #if !defined(OS_CHROMEOS)
 885   // Convert active labs into switches. This needs to be done before
 886   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 887   // affected by experiment flags (--touch-optimized-ui in particular).
 888   // On ChromeOS system level flags are applied from the device settings from
 889   // the session manager.
 890   {
 891     TRACE_EVENT0("startup",
 892         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 893     about_flags::PrefServiceFlagsStorage flags_storage_(
 894         g_browser_process->local_state());
 895     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 896                                         base::CommandLine::ForCurrentProcess(),
 897                                         about_flags::kAddSentinels);
 898   }
 899 #endif  // !defined(OS_CHROMEOS)
 900
 901   local_state_->UpdateCommandLinePrefStore(
 902       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 903
 904   // Reset the command line in the crash report details, since we may have
 905   // just changed it to include experiments.
 906   crash_keys::SetSwitchesFromCommandLine(
 907       base::CommandLine::ForCurrentProcess());
 908
 909   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 910   // needed when loading the MainMenu.nib and the language doesn't depend on
 911   // anything since it comes from Cocoa.
 912 #if defined(OS_MACOSX)
 913   std::string locale =
 914       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 915   browser_process_->SetApplicationLocale(locale);
 916 #else
 917   const std::string locale =
 918       local_state_->GetString(prefs::kApplicationLocale);
 919
 920   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 921   // method InitSharedInstance is ignored.
 922
 923   TRACE_EVENT_BEGIN0("startup",
 924       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 925   const std::string loaded_locale =
 926       ui::ResourceBundle::InitSharedInstanceWithLocale(
 927           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 928   TRACE_EVENT_END0("startup",
 929       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 930
 931   if (loaded_locale.empty() &&
 932       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 933     ShowMissingLocaleMessageBox();
 934     return chrome::RESULT_CODE_MISSING_DATA;
 935   }
 936   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 937   browser_process_->SetApplicationLocale(loaded_locale);
 938
 939   {
 940     TRACE_EVENT0("startup",
 941         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 942     base::FilePath resources_pack_path;
 943     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 944 #if defined(OS_ANDROID)
 945     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 946 #else
 947     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 948         resources_pack_path, ui::SCALE_FACTOR_NONE);
 949 #endif  // defined(OS_ANDROID)
 950   }
 951 #endif  // defined(OS_MACOSX)
 952
 953   // Android does first run in Java instead of native.
 954   // Chrome OS has its own out-of-box-experience code.
 955 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 956   // On first run, we need to process the predictor preferences before the
 957   // browser's profile_manager object is created, but after ResourceBundle
 958   // is initialized.
 959   if (first_run::IsChromeFirstRun()) {
 960     first_run::ProcessMasterPreferencesResult pmp_result =
 961         first_run::ProcessMasterPreferences(user_data_dir_,
 962                                             master_prefs_.get());
 963     if (pmp_result == first_run::EULA_EXIT_NOW)
 964       return chrome::RESULT_CODE_EULA_REFUSED;
 965
 966     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 967         !parsed_command_line().HasSwitch(switches::kAppId) &&
 968         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 969       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 970     }
 971
 972     // TODO(macourteau): refactor preferences that are copied from
 973     // master_preferences into local_state, as a "local_state" section in
 974     // master preferences. If possible, a generic solution would be preferred
 975     // over a copy one-by-one of specific preferences. Also see related TODO
 976     // in first_run.h.
 977
 978     // Store the initial VariationsService seed in local state, if it exists
 979     // in master prefs.
 980     if (!master_prefs_->variations_seed.empty() ||
 981         !master_prefs_->compressed_variations_seed.empty()) {
 982       if (!master_prefs_->variations_seed.empty()) {
 983         local_state_->SetString(prefs::kVariationsSeed,
 984                               master_prefs_->variations_seed);
 985       }
 986       if (!master_prefs_->compressed_variations_seed.empty()) {
 987         local_state_->SetString(prefs::kVariationsCompressedSeed,
 988                                 master_prefs_->compressed_variations_seed);
 989       }
 990       if (!master_prefs_->variations_seed_signature.empty()) {
 991         local_state_->SetString(prefs::kVariationsSeedSignature,
 992                                 master_prefs_->variations_seed_signature);
 993       }
 994       // Set the variation seed date to the current system time. If the user's
 995       // clock is incorrect, this may cause some field trial expiry checks to
 996       // not do the right thing until the next seed update from the server,
 997       // when this value will be updated.
 998       local_state_->SetInt64(prefs::kVariationsSeedDate,
 999                              base::Time::Now().ToInternalValue());
1000     }
1001
1002     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
1003       local_state_->SetString(
1004           prefs::kBrowserSuppressDefaultBrowserPrompt,
1005           master_prefs_->suppress_default_browser_prompt_for_version);
1006     }
1007
1008 #if defined(OS_WIN)
1009     if (!master_prefs_->welcome_page_on_os_upgrade_enabled)
1010       local_state_->SetBoolean(prefs::kWelcomePageOnOSUpgradeEnabled, false);
1011 #endif
1012   }
1013 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1014
1015 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1016   // Set the product channel for crash reports.
1017   base::debug::SetCrashKeyValue(crash_keys::kChannel,
1018       chrome::VersionInfo::GetVersionStringModifier());
1019 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1020
1021   // Initialize tracking synchronizer system.
1022   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
1023       make_scoped_ptr(new base::DefaultTickClock()));
1024
1025 #if defined(OS_MACOSX)
1026   // Get the Keychain API to register for distributed notifications on the main
1027   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
1028   // which doesn't. This ensures those notifications will get delivered
1029   // properly. See issue 37766.
1030   // (Note that the callback mask here is empty. I don't want to register for
1031   // any callbacks, I just want to initialize the mechanism.)
1032   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1033 #endif  // defined(OS_MACOSX)
1034
1035 #if defined(OS_CHROMEOS)
1036   // Must be done after g_browser_process is constructed, before
1037   // SetupMetricsAndFieldTrials().
1038   chromeos::CrosSettings::Initialize();
1039 #endif  // defined(OS_CHROMEOS)
1040
1041   // Now the command line has been mutated based on about:flags, we can setup
1042   // metrics and initialize field trials. The field trials are needed by
1043   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1044   SetupMetricsAndFieldTrials();
1045
1046   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1047   browser_process_->PreCreateThreads();
1048
1049   return content::RESULT_CODE_NORMAL_EXIT;
1050 }
1051
1052 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1053   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1054   TRACK_SCOPED_REGION(
1055       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1056
1057   result_code_ = PreMainMessageLoopRunImpl();
1058
1059   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1060     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1061 }
1062
1063 // PreMainMessageLoopRun calls these extra stages in the following order:
1064 //  PreMainMessageLoopRunImpl()
1065 //   ... initial setup, including browser_process_ setup.
1066 //   PreProfileInit()
1067 //   ... additional setup, including CreateProfile()
1068 //   PostProfileInit()
1069 //   ... additional setup
1070 //   PreBrowserStart()
1071 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1072 //   PostBrowserStart()
1073
1074 void ChromeBrowserMainParts::PreProfileInit() {
1075   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1076
1077   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1078     chrome_extra_parts_[i]->PreProfileInit();
1079
1080 #if !defined(OS_ANDROID)
1081   // Initialize the feedback uploader so it can setup notifications for profile
1082   // creation.
1083   feedback::FeedbackProfileObserver::Initialize();
1084
1085   // Ephemeral profiles may have been left behind if the browser crashed.
1086   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1087 #endif  // !defined(OS_ANDROID)
1088
1089 #if defined(ENABLE_EXTENSIONS)
1090   javascript_dialog_extensions_client::InstallClient();
1091 #endif  // defined(ENABLE_EXTENSIONS)
1092
1093 #if !defined(OS_IOS)
1094   InstallChromeJavaScriptNativeDialogFactory();
1095 #endif  // !defined(OS_IOS)
1096 }
1097
1098 void ChromeBrowserMainParts::PostProfileInit() {
1099   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1100
1101 #if defined(OS_ANDROID)
1102   DevToolsDiscoveryProviderAndroid::Install();
1103 #else
1104   ChromeDevToolsDiscoveryProvider::Install();
1105 #endif  // defined(OS_ANDROID)
1106
1107   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1108   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1109     chrome_extra_parts_[i]->PostProfileInit();
1110 }
1111
1112 void ChromeBrowserMainParts::PreBrowserStart() {
1113   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1114   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1115     chrome_extra_parts_[i]->PreBrowserStart();
1116
1117   three_d_observer_.reset(new ThreeDAPIObserver());
1118
1119   // Start the out-of-memory priority manager here so that we give the most
1120   // amount of time for the other services to start up before we start
1121   // adjusting the oom priority.
1122   //
1123   // On CrOS, it is always enabled. On other platforms, it's behind a flag for
1124   // now.
1125 #if defined(OS_CHROMEOS)
1126   g_browser_process->GetOomPriorityManager()->Start();
1127 #elif defined(OS_WIN) || defined(OS_MACOSX)
1128   if (parsed_command_line().HasSwitch(switches::kEnableTabDiscarding))
1129     g_browser_process->GetOomPriorityManager()->Start();
1130 #endif
1131 }
1132
1133 void ChromeBrowserMainParts::PostBrowserStart() {
1134   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1135   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1136     chrome_extra_parts_[i]->PostBrowserStart();
1137 #if !defined(OS_ANDROID)
1138   // Allow ProcessSingleton to process messages.
1139   process_singleton_->Unlock();
1140 #endif  // !defined(OS_ANDROID)
1141 #if defined(ENABLE_WEBRTC)
1142   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1143   // to reduce the impact on startup time.
1144   BrowserThread::PostDelayedTask(
1145       BrowserThread::UI,
1146       FROM_HERE,
1147       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1148       base::TimeDelta::FromMinutes(1));
1149 #endif  // defined(ENABLE_WEBRTC)
1150
1151   // At this point, StartupBrowserCreator::Start has run creating initial
1152   // browser windows and tabs, but no progress has been made in loading
1153   // content as the main message loop hasn't started processing tasks yet.
1154   // We setup to observe to the initial page load here to defer running
1155   // task posted via PostAfterStartupTask until its complete.
1156   AfterStartupTaskUtils::StartMonitoringStartup();
1157 }
1158
1159 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1160   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1161   TRACK_SCOPED_REGION(
1162       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1163
1164   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1165   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1166
1167 #if defined(OS_WIN)
1168   // Windows parental controls calls can be slow, so we do an early init here
1169   // that calculates this value off of the UI thread.
1170   IncognitoModePrefs::InitializePlatformParentalControls();
1171 #endif
1172
1173 #if defined(ENABLE_EXTENSIONS)
1174   if (!variations::GetVariationParamValue(
1175       "LightSpeed", "EarlyInitStartup").empty()) {
1176     // Try to compute this early on another thread so that we don't spend time
1177     // during profile load initializing the extensions APIs.
1178     BrowserThread::PostTask(
1179         BrowserThread::FILE_USER_BLOCKING,
1180         FROM_HERE,
1181         base::Bind(
1182             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1183   }
1184 #endif
1185
1186   // Android updates the metrics service dynamically depending on whether the
1187   // application is in the foreground or not. Do not start here.
1188 #if !defined(OS_ANDROID)
1189   // Now that the file thread has been started, start recording.
1190   StartMetricsRecording();
1191 #endif  // !defined(OS_ANDROID)
1192
1193   if (!base::debug::BeingDebugged()) {
1194     // Create watchdog thread after creating all other threads because it will
1195     // watch the other threads and they must be running.
1196     browser_process_->watchdog_thread();
1197   }
1198
1199   // Do any initializating in the browser process that requires all threads
1200   // running.
1201   browser_process_->PreMainMessageLoopRun();
1202
1203   // Record last shutdown time into a histogram.
1204   browser_shutdown::ReadLastShutdownInfo();
1205
1206 #if defined(OS_WIN)
1207   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1208   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1209   // upgrade/uninstall happen separately.
1210   bool already_running = browser_util::IsBrowserAlreadyRunning();
1211
1212   // If the command line specifies 'uninstall' then we need to work here
1213   // unless we detect another chrome browser running.
1214   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1215     return DoUninstallTasks(already_running);
1216   }
1217
1218   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1219       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1220     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1221         parsed_command_line_);
1222   }
1223
1224   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1225       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1226 #endif  // defined(OS_WIN)
1227
1228   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1229     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1230         prefs::kDefaultBrowserSettingEnabled);
1231     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1232         prefs::kDefaultBrowserSettingEnabled)) {
1233       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1234     }
1235
1236     return ShellIntegration::SetAsDefaultBrowser() ?
1237         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1238         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1239   }
1240
1241 #if defined(USE_AURA)
1242   // Make sure aura::Env has been initialized.
1243   CHECK(aura::Env::GetInstance());
1244 #endif  // defined(USE_AURA)
1245
1246   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1247 #if !defined(OS_ANDROID)
1248   // If the command line specifies --pack-extension, attempt the pack extension
1249   // startup action and exit.
1250   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1251     extensions::StartupHelper extension_startup_helper;
1252     if (extension_startup_helper.PackExtension(parsed_command_line()))
1253       return content::RESULT_CODE_NORMAL_EXIT;
1254     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1255   }
1256
1257   // When another process is running, use that process instead of starting a
1258   // new one. NotifyOtherProcess will currently give the other process up to
1259   // 20 seconds to respond. Note that this needs to be done before we attempt
1260   // to read the profile.
1261   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1262   switch (notify_result_) {
1263     case ProcessSingleton::PROCESS_NONE:
1264       // No process already running, fall through to starting a new one.
1265       break;
1266
1267     case ProcessSingleton::PROCESS_NOTIFIED:
1268 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1269       // On POSIX systems, print a message notifying the process is running.
1270       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1271           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1272 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1273
1274       // Having a differentiated return type for testing allows for tests to
1275       // verify proper handling of some switches. When not testing, stick to
1276       // the standard Unix convention of returning zero when things went as
1277       // expected.
1278       if (parsed_command_line().HasSwitch(switches::kTestType))
1279         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1280       return content::RESULT_CODE_NORMAL_EXIT;
1281
1282     case ProcessSingleton::PROFILE_IN_USE:
1283       return chrome::RESULT_CODE_PROFILE_IN_USE;
1284
1285     case ProcessSingleton::LOCK_ERROR:
1286       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1287                     "directory. This means that running multiple instances "
1288                     "would start multiple browser processes rather than "
1289                     "opening a new window in the existing process. Aborting "
1290                     "now to avoid profile corruption.";
1291       return chrome::RESULT_CODE_PROFILE_IN_USE;
1292
1293     default:
1294       NOTREACHED();
1295   }
1296 #endif  // !defined(OS_ANDROID)
1297
1298   // Handle special early return paths (which couldn't be processed even earlier
1299   // as they require the process singleton to be held) first.
1300
1301   std::string try_chrome =
1302       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1303   if (!try_chrome.empty()) {
1304 #if defined(OS_WIN)
1305     // Setup.exe has determined that we need to run a retention experiment
1306     // and has lauched chrome to show the experiment UI. It is guaranteed that
1307     // no other Chrome is currently running as the process singleton was
1308     // sucessfully grabbed above.
1309     int try_chrome_int;
1310     base::StringToInt(try_chrome, &try_chrome_int);
1311     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1312         try_chrome_int,
1313         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1314                    base::Unretained(process_singleton_.get())));
1315     if (answer == TryChromeDialogView::NOT_NOW)
1316       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1317     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1318       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1319     // At this point the user is willing to try chrome again.
1320     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1321       // Only set in the unattended case, the interactive case is Windows 8.
1322       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1323           ShellIntegration::SET_DEFAULT_UNATTENDED)
1324         ShellIntegration::SetAsDefaultBrowser();
1325     }
1326 #else
1327     // We don't support retention experiments on Mac or Linux.
1328     return content::RESULT_CODE_NORMAL_EXIT;
1329 #endif  // defined(OS_WIN)
1330   }
1331
1332 #if defined(OS_WIN)
1333   // Do the tasks if chrome has been upgraded while it was last running.
1334   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1335     return content::RESULT_CODE_NORMAL_EXIT;
1336
1337   // Check if there is any machine level Chrome installed on the current
1338   // machine. If yes and the current Chrome process is user level, we do not
1339   // allow the user level Chrome to run. So we notify the user and uninstall
1340   // user level Chrome.
1341   // Note this check needs to happen here (after the process singleton was
1342   // obtained but before potentially creating the first run sentinel).
1343   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1344     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1345 #endif  // defined(OS_WIN)
1346
1347 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1348   if (sxs_linux::ShouldMigrateUserDataDir())
1349     return sxs_linux::MigrateUserDataDir();
1350 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1351
1352   // Desktop construction occurs here, (required before profile creation).
1353   PreProfileInit();
1354
1355   // Profile creation ----------------------------------------------------------
1356
1357   metrics::MetricsService::SetExecutionPhase(
1358       metrics::MetricsService::CREATE_PROFILE,
1359       g_browser_process->local_state());
1360
1361   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1362                       base::TimeTicks::Now() - start_time_step1);
1363
1364   // This step is costly and is already measured in Startup.CreateFirstProfile
1365   // and more directly Profile.CreateAndInitializeProfile.
1366   profile_ = CreatePrimaryProfile(parameters(),
1367                                   user_data_dir_,
1368                                   parsed_command_line());
1369   if (!profile_)
1370     return content::RESULT_CODE_NORMAL_EXIT;
1371
1372 #if !defined(OS_ANDROID)
1373   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1374   // The first run sentinel must be created after the process singleton was
1375   // grabbed and no early return paths were otherwise hit above.
1376   first_run::CreateSentinelIfNeeded();
1377 #endif  // !defined(OS_ANDROID)
1378
1379 #if defined(ENABLE_BACKGROUND)
1380   // Autoload any profiles which are running background apps.
1381   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1382   browser_process_->profile_manager()->AutoloadProfiles();
1383 #endif  // defined(ENABLE_BACKGROUND)
1384   // Post-profile init ---------------------------------------------------------
1385
1386   TranslateService::Initialize();
1387
1388   // Needs to be done before PostProfileInit, since login manager on CrOS is
1389   // called inside PostProfileInit.
1390   content::WebUIControllerFactory::RegisterFactory(
1391       ChromeWebUIControllerFactory::GetInstance());
1392
1393   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1394   // So make sure to create it before that.
1395 #if !defined(DISABLE_NACL)
1396   NaClBrowserDelegateImpl* delegate =
1397       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1398   nacl::NaClBrowser::SetDelegate(delegate);
1399 #endif  // !defined(DISABLE_NACL)
1400
1401   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1402   // (requires supporting early exit).
1403   PostProfileInit();
1404
1405   // Retrieve cached GL strings from local state and use them for GPU
1406   // blacklist decisions.
1407   if (g_browser_process->gl_string_manager())
1408     g_browser_process->gl_string_manager()->Initialize();
1409
1410   // Create an instance of GpuModeManager to watch gpu mode pref change.
1411   g_browser_process->gpu_mode_manager();
1412
1413 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1414   // Show the First Run UI if this is the first time Chrome has been run on
1415   // this computer, or we're being compelled to do so by a command line flag.
1416   // Note that this be done _after_ the PrefService is initialized and all
1417   // preferences are registered, since some of the code that the importer
1418   // touches reads preferences.
1419   if (first_run::IsChromeFirstRun()) {
1420     first_run::AutoImport(profile_,
1421                           master_prefs_->homepage_defined,
1422                           master_prefs_->do_import_items,
1423                           master_prefs_->dont_import_items,
1424                           master_prefs_->import_bookmarks_path);
1425
1426     // Note: this can pop the first run consent dialog on linux.
1427     first_run::DoPostImportTasks(profile_,
1428                                  master_prefs_->make_chrome_default_for_user);
1429
1430     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1431       browser_creator_->set_show_main_browser_window(
1432           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1433     } else {
1434       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1435     }
1436   }
1437 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1438
1439 #if defined(OS_WIN)
1440   // Sets things up so that if we crash from this point on, a dialog will
1441   // popup asking the user to restart chrome. It is done this late to avoid
1442   // testing against a bunch of special cases that are taken care early on.
1443   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1444       parsed_command_line());
1445
1446   // Registers Chrome with the Windows Restart Manager, which will restore the
1447   // Chrome session when the computer is restarted after a system update.
1448   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1449   // but should run on startup if extended to handle crashes/hangs/patches.
1450   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1451   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1452     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1453         parsed_command_line());
1454   }
1455
1456   // Verify that the profile is not on a network share and if so prepare to show
1457   // notification to the user.
1458   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1459     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1460         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1461                    profile_->GetPath()));
1462   }
1463 #endif  // defined(OS_WIN)
1464
1465 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1466   // Init the RLZ library. This just binds the dll and schedules a task on the
1467   // file thread to be run sometime later. If this is the first run we record
1468   // the installation event.
1469   PrefService* pref_service = profile_->GetPrefs();
1470   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1471       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1472   // Negative ping delay means to send ping immediately after a first search is
1473   // recorded.
1474   rlz::RLZTracker::SetRlzDelegate(
1475       make_scoped_ptr(new ChromeRLZTrackerDelegate));
1476   rlz::RLZTracker::InitRlzDelayed(
1477       first_run::IsChromeFirstRun(), ping_delay < 0,
1478       base::TimeDelta::FromMilliseconds(abs(ping_delay)),
1479       ChromeRLZTrackerDelegate::IsGoogleDefaultSearch(profile_),
1480       ChromeRLZTrackerDelegate::IsGoogleHomepage(profile_),
1481       ChromeRLZTrackerDelegate::IsGoogleInStartpages(profile_));
1482 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1483
1484   // Configure modules that need access to resources.
1485   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1486
1487   // In unittest mode, this will do nothing.  In normal mode, this will create
1488   // the global IntranetRedirectDetector instance, which will promptly go to
1489   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1490   // to see if it should do anything else.
1491   //
1492   // A simpler way of doing all this would be to have some function which could
1493   // give the time elapsed since startup, and simply have this object check that
1494   // when asked to initialize itself, but this doesn't seem to exist.
1495   //
1496   // This can't be created in the BrowserProcessImpl constructor because it
1497   // needs to read prefs that get set after that runs.
1498   browser_process_->intranet_redirect_detector();
1499   GoogleSearchCounter::RegisterForNotifications();
1500
1501 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1502   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1503     base::FilePath path =
1504         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1505     printing::PrintedDocument::set_debug_dump_path(path);
1506   }
1507 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1508
1509   HandleTestParameters(parsed_command_line());
1510   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1511       base::debug::BeingDebugged());
1512
1513   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1514       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1515   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1516       browser_process_->GetApplicationLocale());
1517
1518   // Start watching for hangs during startup. We disarm this hang detector when
1519   // ThreadWatcher takes over or when browser is shutdown or when
1520   // startup_watcher_ is deleted.
1521   metrics::MetricsService::SetExecutionPhase(
1522       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1523       g_browser_process->local_state());
1524   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1525
1526   // On mobile, need for clean shutdown arises only when the application comes
1527   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1528   // http://crbug.com/179143
1529 #if !defined(OS_ANDROID)
1530   // Start watching for a hang.
1531   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1532 #endif  // !defined(OS_ANDROID)
1533
1534 #if defined(ENABLE_PRINT_PREVIEW)
1535   // Create the instance of the cloud print proxy service so that it can launch
1536   // the service process if needed. This is needed because the service process
1537   // might have shutdown because an update was available.
1538   // TODO(torne): this should maybe be done with
1539   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1540   // instead?
1541   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1542 #endif  // defined(ENABLE_PRINT_PREVIEW)
1543
1544   // Start watching all browser threads for responsiveness.
1545   metrics::MetricsService::SetExecutionPhase(
1546       metrics::MetricsService::THREAD_WATCHER_START,
1547       g_browser_process->local_state());
1548   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1549
1550 #if defined(OS_ANDROID)
1551   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1552 #endif  // defined(OS_ANDROID)
1553
1554 #if !defined(DISABLE_NACL)
1555   BrowserThread::PostTask(
1556       BrowserThread::IO,
1557       FROM_HERE,
1558       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1559 #endif  // !defined(DISABLE_NACL)
1560
1561   // Make sure initial prefs are recorded
1562   PrefMetricsService::Factory::GetForProfile(profile_);
1563
1564   PreBrowserStart();
1565
1566   // Instantiate the notification UI manager, as this triggers a perf timer
1567   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1568   // triggering the timer and call that explicitly in the approprate place.
1569   // http://crbug.com/105065.
1570   browser_process_->notification_ui_manager();
1571
1572   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1573   // data source is based on the Component Updater.
1574   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1575
1576   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1577     RegisterComponentsForUpdate();
1578
1579 #if defined(OS_ANDROID)
1580   chrome_variations::VariationsService* variations_service =
1581       browser_process_->variations_service();
1582   if (variations_service) {
1583     // Just initialize the policy prefs service here. Variations seed fetching
1584     // will be initialized when the app enters foreground mode.
1585     variations_service->set_policy_pref_service(profile_->GetPrefs());
1586   }
1587   translate::TranslateDownloadManager::RequestLanguageList(
1588       profile_->GetPrefs());
1589
1590 #else
1591   // Most general initialization is behind us, but opening a
1592   // tab and/or session restore and such is still to be done.
1593   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1594
1595   // We are in regular browser boot sequence. Open initial tabs and enter the
1596   // main message loop.
1597 #if defined(OS_CHROMEOS)
1598   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1599   // them this early as the cryptohome hasn't yet been mounted (which happens
1600   // only once we log in.
1601   std::vector<Profile*> last_opened_profiles;
1602 #else
1603   std::vector<Profile*> last_opened_profiles =
1604       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1605 #endif  // defined(OS_CHROMEOS)
1606
1607   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1608                       base::TimeTicks::Now() - start_time_step2);
1609
1610   // This step is costly and is already measured in
1611   // Startup.StartupBrowserCreator_Start.
1612   bool started = browser_creator_->Start(
1613       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1614   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1615   if (started) {
1616 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1617     // Initialize autoupdate timer. Timer callback costs basically nothing
1618     // when browser is not in persistent mode, so it's OK to let it ride on
1619     // the main thread. This needs to be done here because we don't want
1620     // to start the timer when Chrome is run inside a test harness.
1621     browser_process_->StartAutoupdateTimer();
1622 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1623
1624 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1625     // On Linux, the running exe will be updated if an upgrade becomes
1626     // available while the browser is running.  We need to save the last
1627     // modified time of the exe, so we can compare to determine if there is
1628     // an upgrade while the browser is kept alive by a persistent extension.
1629     upgrade_util::SaveLastModifiedTimeOfExe();
1630 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1631
1632     // Record now as the last successful chrome start.
1633     GoogleUpdateSettings::SetLastRunTime();
1634
1635 #if defined(OS_MACOSX)
1636     // Call Recycle() here as late as possible, before going into the loop
1637     // because Start() will add things to it while creating the main window.
1638     if (parameters().autorelease_pool)
1639       parameters().autorelease_pool->Recycle();
1640 #endif  // defined(OS_MACOSX)
1641
1642     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1643     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1644
1645     // If we're running tests (ui_task is non-null), then we don't want to
1646     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1647     // RequestLanguageList
1648     if (parameters().ui_task == NULL) {
1649       // Request new variations seed information from server.
1650       chrome_variations::VariationsService* variations_service =
1651           browser_process_->variations_service();
1652       if (variations_service) {
1653         variations_service->StartRepeatedVariationsSeedFetch();
1654
1655 #if defined(OS_WIN)
1656         variations_service->StartGoogleUpdateRegistrySync();
1657 #endif  // defined(OS_WIN)
1658       }
1659
1660       translate::TranslateDownloadManager::RequestLanguageList(
1661           profile_->GetPrefs());
1662     }
1663
1664     run_message_loop_ = true;
1665   } else {
1666     run_message_loop_ = false;
1667   }
1668   browser_creator_.reset();
1669
1670 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1671   if (g_browser_process->metrics_service()->reporting_active())
1672     content::StartPowerUsageMonitor();
1673 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1674
1675   process_power_collector_.reset(new ProcessPowerCollector);
1676   process_power_collector_->Initialize();
1677 #endif  // !defined(OS_ANDROID)
1678
1679   PostBrowserStart();
1680
1681   if (parameters().ui_task) {
1682     parameters().ui_task->Run();
1683     delete parameters().ui_task;
1684     run_message_loop_ = false;
1685   }
1686 #if defined(OS_ANDROID)
1687   // We never run the C++ main loop on Android, since the UI thread message
1688   // loop is controlled by the OS, so this is as close as we can get to
1689   // the start of the main loop.
1690   if (result_code_ <= 0) {
1691     RecordBrowserStartupTime();
1692   }
1693 #endif  // defined(OS_ANDROID)
1694
1695 #if !defined(OS_ANDROID)
1696   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1697                       base::TimeTicks::Now() - start_time_step3);
1698 #endif  // !defined(OS_ANDROID)
1699
1700   return result_code_;
1701 }
1702
1703 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1704   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1705 #if defined(OS_ANDROID)
1706   // Chrome on Android does not use default MessageLoop. It has its own
1707   // Android specific MessageLoop
1708   NOTREACHED();
1709   return true;
1710 #else
1711   // Set the result code set in PreMainMessageLoopRun or set above.
1712   *result_code = result_code_;
1713   if (!run_message_loop_)
1714     return true;  // Don't run the default message loop.
1715
1716   // These should be invoked as close to the start of the browser's
1717   // UI thread message loop as possible to get a stable measurement
1718   // across versions.
1719   RecordBrowserStartupTime();
1720
1721   DCHECK(base::MessageLoopForUI::IsCurrent());
1722   base::RunLoop run_loop;
1723
1724   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1725
1726   metrics::MetricsService::SetExecutionPhase(
1727       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1728       g_browser_process->local_state());
1729   run_loop.Run();
1730
1731   return true;
1732 #endif  // defined(OS_ANDROID)
1733 }
1734
1735 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1736   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
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 #else
1742   // Start watching for jank during shutdown. It gets disarmed when
1743   // |shutdown_watcher_| object is destructed.
1744   metrics::MetricsService::SetExecutionPhase(
1745       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1746       g_browser_process->local_state());
1747   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1748
1749   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1750   startup_watcher_->Disarm();
1751
1752   // Remove observers attached to D-Bus clients before DbusThreadManager is
1753   // shut down.
1754   process_power_collector_.reset();
1755
1756   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1757     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1758
1759   // Some tests don't set parameters.ui_task, so they started translate
1760   // language fetch that was never completed so we need to cleanup here
1761   // otherwise it will be done by the destructor in a wrong thread.
1762   TranslateService::Shutdown(parameters().ui_task == NULL);
1763
1764   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1765     process_singleton_->Cleanup();
1766
1767   // Stop all tasks that might run on WatchDogThread.
1768   ThreadWatcherList::StopWatchingAll();
1769
1770   browser_process_->metrics_service()->Stop();
1771
1772   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1773   browser_process_->StartTearDown();
1774 #endif  // defined(OS_ANDROID)
1775 }
1776
1777 void ChromeBrowserMainParts::PostDestroyThreads() {
1778 #if defined(OS_ANDROID)
1779   // On Android, there is no quit/exit. So the browser's main message loop will
1780   // not finish.
1781   NOTREACHED();
1782 #else
1783   browser_process_->PostDestroyThreads();
1784   // browser_shutdown takes care of deleting browser_process, so we need to
1785   // release it.
1786   ignore_result(browser_process_.release());
1787   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1788   master_prefs_.reset();
1789   process_singleton_.reset();
1790   device_event_log::Shutdown();
1791
1792   // We need to do this check as late as possible, but due to modularity, this
1793   // may be the last point in Chrome.  This would be more effective if done at
1794   // a higher level on the stack, so that it is impossible for an early return
1795   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1796   // paths from content/browser/browser_main.
1797   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1798
1799 #if defined(OS_CHROMEOS)
1800   chromeos::CrosSettings::Shutdown();
1801 #endif  // defined(OS_CHROMEOS)
1802 #endif  // defined(OS_ANDROID)
1803 }
1804
1805 // Public members:
1806
1807 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1808   chrome_extra_parts_.push_back(parts);
1809 }