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/profiler/scoped_profile.h"
  27 #include "base/profiler/scoped_tracker.h"
  28 #include "base/run_loop.h"
  29 #include "base/strings/string_number_conversions.h"
  30 #include "base/strings/string_piece.h"
  31 #include "base/strings/string_split.h"
  32 #include "base/strings/sys_string_conversions.h"
  33 #include "base/strings/utf_string_conversions.h"
  34 #include "base/sys_info.h"
  35 #include "base/threading/platform_thread.h"
  36 #include "base/time/default_tick_clock.h"
  37 #include "base/time/time.h"
  38 #include "base/trace_event/trace_event.h"
  39 #include "base/values.h"
  40 #include "build/build_config.h"
  41 #include "cc/base/switches.h"
  42 #include "chrome/browser/about_flags.h"
  43 #include "chrome/browser/after_startup_task_utils.h"
  44 #include "chrome/browser/browser_process.h"
  45 #include "chrome/browser/browser_process_impl.h"
  46 #include "chrome/browser/browser_process_platform_part.h"
  47 #include "chrome/browser/browser_shutdown.h"
  48 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  49 #include "chrome/browser/component_updater/cld_component_installer.h"
  50 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  51 #include "chrome/browser/component_updater/flash_component_installer.h"
  52 #include "chrome/browser/component_updater/recovery_component_installer.h"
  53 #include "chrome/browser/component_updater/supervised_user_whitelist_installer.h"
  54 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  55 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  56 #include "chrome/browser/defaults.h"
  57 #include "chrome/browser/first_run/first_run.h"
  58 #include "chrome/browser/first_run/upgrade_util.h"
  59 #include "chrome/browser/google/google_search_counter.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/metrics/variations/variations_service.h"
  68 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  69 #include "chrome/browser/net/chrome_net_log.h"
  70 #include "chrome/browser/net/crl_set_fetcher.h"
  71 #include "chrome/browser/performance_monitor/performance_monitor.h"
  72 #include "chrome/browser/plugins/plugin_prefs.h"
  73 #include "chrome/browser/power/process_power_collector.h"
  74 #include "chrome/browser/pref_service_flags_storage.h"
  75 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  76 #include "chrome/browser/prefs/command_line_pref_store.h"
  77 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  78 #include "chrome/browser/prefs/pref_metrics_service.h"
  79 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  80 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  81 #include "chrome/browser/process_singleton.h"
  82 #include "chrome/browser/profiles/profile.h"
  83 #include "chrome/browser/profiles/profile_manager.h"
  84 #include "chrome/browser/profiles/profiles_state.h"
  85 #include "chrome/browser/shell_integration.h"
  86 #include "chrome/browser/tracing/navigation_tracing.h"
  87 #include "chrome/browser/translate/translate_service.h"
  88 #include "chrome/browser/ui/app_list/app_list_service.h"
  89 #include "chrome/browser/ui/browser.h"
  90 #include "chrome/browser/ui/browser_finder.h"
  91 #include "chrome/browser/ui/host_desktop.h"
  92 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  93 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  94 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  95 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  96 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  97 #include "chrome/common/channel_info.h"
  98 #include "chrome/common/chrome_constants.h"
  99 #include "chrome/common/chrome_paths.h"
 100 #include "chrome/common/chrome_result_codes.h"
 101 #include "chrome/common/chrome_switches.h"
 102 #include "chrome/common/crash_keys.h"
 103 #include "chrome/common/env_vars.h"
 104 #include "chrome/common/logging_chrome.h"
 105 #include "chrome/common/net/net_resource_provider.h"
 106 #include "chrome/common/pref_names.h"
 107 #include "chrome/common/profiling.h"
 108 #include "chrome/common/variations/variations_util.h"
 109 #include "chrome/grit/generated_resources.h"
 110 #include "chrome/installer/util/google_update_settings.h"
 111 #include "components/component_updater/component_updater_service.h"
 112 #include "components/device_event_log/device_event_log.h"
 113 #include "components/google/core/browser/google_util.h"
 114 #include "components/language_usage_metrics/language_usage_metrics.h"
 115 #include "components/metrics/call_stack_profile_metrics_provider.h"
 116 #include "components/metrics/metrics_service.h"
 117 #include "components/metrics/profiler/tracking_synchronizer.h"
 118 #include "components/nacl/browser/nacl_browser.h"
 119 #include "components/rappor/rappor_service.h"
 120 #include "components/signin/core/common/profile_management_switches.h"
 121 #include "components/startup_metric_utils/startup_metric_utils.h"
 122 #include "components/tracing/tracing_switches.h"
 123 #include "components/translate/content/browser/browser_cld_utils.h"
 124 #include "components/translate/content/common/cld_data_source.h"
 125 #include "components/translate/core/browser/translate_download_manager.h"
 126 #include "components/variations/net/variations_http_header_provider.h"
 127 #include "components/variations/pref_names.h"
 128 #include "components/variations/variations_associated_data.h"
 129 #include "components/version_info/version_info.h"
 130 #include "content/public/browser/browser_thread.h"
 131 #include "content/public/browser/notification_observer.h"
 132 #include "content/public/browser/notification_registrar.h"
 133 #include "content/public/browser/notification_service.h"
 134 #include "content/public/browser/notification_types.h"
 135 #include "content/public/browser/power_usage_monitor.h"
 136 #include "content/public/browser/site_instance.h"
 137 #include "content/public/common/content_client.h"
 138 #include "content/public/common/content_switches.h"
 139 #include "content/public/common/main_function_params.h"
 140 #include "grit/platform_locale_settings.h"
 141 #include "media/audio/audio_manager.h"
 142 #include "net/base/net_module.h"
 143 #include "net/cookies/cookie_monster.h"
 144 #include "net/http/http_network_layer.h"
 145 #include "net/http/http_stream_factory.h"
 146 #include "net/url_request/url_request.h"
 147 #include "ui/base/l10n/l10n_util.h"
 148 #include "ui/base/layout.h"
 149 #include "ui/base/resource/resource_bundle.h"
 150 #include "ui/strings/grit/app_locale_settings.h"
 151
 152 #if defined(OS_ANDROID)
 153 #include "chrome/browser/android/dev_tools_discovery_provider_android.h"
 154 #include "chrome/browser/metrics/thread_watcher_android.h"
 155 #include "ui/base/resource/resource_bundle_android.h"
 156 #else
 157 #include "chrome/browser/devtools/chrome_devtools_discovery_provider.h"
 158 #include "chrome/browser/feedback/feedback_profile_observer.h"
 159 #endif  // defined(OS_ANDROID)
 160
 161 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 162 #include "chrome/browser/first_run/upgrade_util_linux.h"
 163 #include "chrome/browser/sxs_linux.h"
 164 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 165
 166 #if defined(OS_CHROMEOS)
 167 #include "chrome/browser/chromeos/settings/cros_settings.h"
 168 #include "chromeos/chromeos_switches.h"
 169 #include "chromeos/settings/cros_settings_names.h"
 170 #endif  // defined(OS_CHROMEOS)
 171
 172 // TODO(port): several win-only methods have been pulled out of this, but
 173 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 174 // other platforms. For now, it's just a stub. This is a serious work in
 175 // progress and should not be taken as an indication of a real refactoring.
 176
 177 #if defined(OS_WIN)
 178 #include "base/environment.h"  // For PreRead experiment.
 179 #include "base/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 base::StackSamplingProfiler::SamplingParams GetStartupSamplingParams() {
 546   // Sample at 10Hz for 30 seconds.
 547   base::StackSamplingProfiler::SamplingParams params;
 548   params.initial_delay = base::TimeDelta::FromMilliseconds(0);
 549   params.bursts = 1;
 550   params.samples_per_burst = 300;
 551   params.sampling_interval = base::TimeDelta::FromMilliseconds(100);
 552   return params;
 553 }
 554
 555 }  // namespace
 556
 557 namespace chrome_browser {
 558
 559 // This error message is not localized because we failed to load the
 560 // localization data files.
 561 #if defined(OS_WIN)
 562 const char kMissingLocaleDataTitle[] = "Missing File Error";
 563 #endif  // defined(OS_WIN)
 564
 565 #if defined(OS_WIN)
 566 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 567 const char kMissingLocaleDataMessage[] =
 568     "Unable to find locale data files. Please reinstall.";
 569 #endif  // defined(OS_WIN)
 570
 571 }  // namespace chrome_browser
 572
 573 // BrowserMainParts ------------------------------------------------------------
 574
 575 ChromeBrowserMainParts::ChromeBrowserMainParts(
 576     const content::MainFunctionParams& parameters)
 577     : parameters_(parameters),
 578       parsed_command_line_(parameters.command_line),
 579       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 580       startup_watcher_(new StartupTimeBomb()),
 581       shutdown_watcher_(new ShutdownWatcherHelper()),
 582       browser_field_trials_(parameters.command_line),
 583       sampling_profiler_(
 584           base::PlatformThread::CurrentId(),
 585           GetStartupSamplingParams(),
 586           metrics::CallStackProfileMetricsProvider::GetProfilerCallback(
 587               metrics::CallStackProfileMetricsProvider::Params(
 588                   metrics::CallStackProfileMetricsProvider::PROCESS_STARTUP,
 589                   false))),
 590       profile_(NULL),
 591       run_message_loop_(true),
 592       notify_result_(ProcessSingleton::PROCESS_NONE),
 593       local_state_(NULL),
 594       restart_last_session_(false) {
 595   const version_info::Channel channel = chrome::GetChannel();
 596   if (channel == version_info::Channel::UNKNOWN ||
 597       channel == version_info::Channel::CANARY ||
 598       channel == version_info::Channel::DEV) {
 599     sampling_profiler_.Start();
 600   }
 601
 602   // If we're running tests (ui_task is non-null).
 603   if (parameters.ui_task)
 604     browser_defaults::enable_help_app = false;
 605
 606   // Chrome disallows cookies by default. All code paths that want to use
 607   // cookies need to go through one of Chrome's URLRequestContexts which have
 608   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 609   net::URLRequest::SetDefaultCookiePolicyToBlock();
 610 }
 611
 612 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 613   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 614     delete chrome_extra_parts_[i];
 615   chrome_extra_parts_.clear();
 616 }
 617
 618 // This will be called after the command-line has been mutated by about:flags
 619 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 620   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 621   // Must initialize metrics after labs have been converted into switches,
 622   // but before field trials are set up (so that client ID is available for
 623   // one-time randomized field trials).
 624
 625   // Initialize FieldTrialList to support FieldTrials that use one-time
 626   // randomization.
 627   metrics::MetricsService* metrics = browser_process_->metrics_service();
 628   field_trial_list_.reset(
 629       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 630
 631   const base::CommandLine* command_line =
 632       base::CommandLine::ForCurrentProcess();
 633   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 634       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 635     base::FieldTrial::EnableBenchmarking();
 636   }
 637
 638   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 639     bool result = chrome_variations::AssociateParamsFromString(
 640         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 641     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 642                   << " list specified.";
 643   }
 644
 645   // Ensure any field trials specified on the command line are initialized.
 646   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 647     std::set<std::string> unforceable_field_trials;
 648 #if defined(OFFICIAL_BUILD)
 649     unforceable_field_trials.insert("SettingsEnforcement");
 650 #endif  // defined(OFFICIAL_BUILD)
 651
 652     // Create field trials without activating them, so that this behaves in a
 653     // consistent manner with field trials created from the server.
 654     bool result = base::FieldTrialList::CreateTrialsFromString(
 655         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 656         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 657         unforceable_field_trials);
 658     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 659                   << " list specified.";
 660   }
 661
 662 #if defined(FIELDTRIAL_TESTING_ENABLED)
 663   if (!command_line->HasSwitch(switches::kDisableFieldTrialTestingConfig) &&
 664       !command_line->HasSwitch(switches::kForceFieldTrials) &&
 665       !command_line->HasSwitch(switches::kVariationsServerURL))
 666     chrome_variations::AssociateDefaultFieldTrialConfig();
 667 #endif  // defined(FIELDTRIAL_TESTING_ENABLED)
 668
 669   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 670     // Create default variation ids which will always be included in the
 671     // X-Client-Data request header.
 672     variations::VariationsHttpHeaderProvider* provider =
 673         variations::VariationsHttpHeaderProvider::GetInstance();
 674     bool result = provider->SetDefaultVariationIds(
 675         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 676     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 677                   << " list specified.";
 678     metrics->AddSyntheticTrialObserver(provider);
 679   }
 680   chrome_variations::VariationsService* variations_service =
 681       browser_process_->variations_service();
 682   if (variations_service)
 683     variations_service->CreateTrialsFromSeed();
 684
 685   // This must be called after |local_state_| is initialized.
 686   browser_field_trials_.SetupFieldTrials();
 687
 688   // Enable Navigation Tracing only if a trace upload url is specified.
 689   if (command_line->HasSwitch(switches::kEnableNavigationTracing) &&
 690       command_line->HasSwitch(switches::kTraceUploadURL)) {
 691     tracing::SetupNavigationTracing();
 692   }
 693
 694   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 695   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 696   // Even though base::Bind does AddRef and Release, the object will not be
 697   // deleted after the Task is executed.
 698   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 699
 700   // Now that field trials have been created, initializes metrics recording.
 701   metrics->InitializeMetricsRecordingState();
 702
 703   const version_info::Channel channel = chrome::GetChannel();
 704
 705   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 706   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 707   if (channel == version_info::Channel::UNKNOWN ||
 708       channel == version_info::Channel::CANARY ||
 709       channel == version_info::Channel::DEV) {
 710     media::AudioManager::EnableHangMonitor();
 711   }
 712
 713   // Enable profiler instrumentation depending on the channel.
 714   switch (channel) {
 715     case version_info::Channel::UNKNOWN:
 716     case version_info::Channel::CANARY:
 717       tracked_objects::ScopedTracker::Enable();
 718       break;
 719
 720     case version_info::Channel::DEV:
 721     case version_info::Channel::BETA:
 722     case version_info::Channel::STABLE:
 723       // Don't enable instrumentation.
 724       break;
 725   }
 726 }
 727
 728 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 729
 730 void ChromeBrowserMainParts::StartMetricsRecording() {
 731   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 732
 733   g_browser_process->metrics_service()->CheckForClonedInstall(
 734       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 735
 736   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 737 }
 738
 739 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 740   // Don't record any metrics if UI was displayed before this point e.g.
 741   // warning dialogs.
 742   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 743     return;
 744
 745   bool is_first_run = false;
 746 #if !defined(OS_ANDROID)
 747   // On Android, first run is handled in Java code, and the C++ side of Chrome
 748   // doesn't know if this is the first run. This will cause some inaccuracy in
 749   // the UMA statistics, but this should be minor (first runs are rare).
 750   is_first_run = first_run::IsChromeFirstRun();
 751 #endif  // defined(OS_ANDROID)
 752
 753   // Record collected startup metrics.
 754   startup_metric_utils::RecordBrowserMainMessageLoopStart(base::Time::Now(),
 755                                                           is_first_run);
 756 }
 757
 758 // -----------------------------------------------------------------------------
 759 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 760
 761 #if defined(OS_WIN)
 762 #define DLLEXPORT __declspec(dllexport)
 763
 764 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 765 extern "C" {
 766 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 767 }
 768
 769 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 770   // Need an instance of AtExitManager to handle singleton creations and
 771   // deletions.  We need this new instance because, the old instance created
 772   // in ChromeMain() got destructed when the function returned.
 773   base::AtExitManager exit_manager;
 774   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 775 }
 776 #endif
 777
 778 // content::BrowserMainParts implementation ------------------------------------
 779
 780 void ChromeBrowserMainParts::PreEarlyInitialization() {
 781   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 782   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 783     chrome_extra_parts_[i]->PreEarlyInitialization();
 784 }
 785
 786 void ChromeBrowserMainParts::PostEarlyInitialization() {
 787   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 788   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 789     chrome_extra_parts_[i]->PostEarlyInitialization();
 790 }
 791
 792 void ChromeBrowserMainParts::ToolkitInitialized() {
 793   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 794   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 795     chrome_extra_parts_[i]->ToolkitInitialized();
 796 }
 797
 798 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 799   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 800
 801   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 802     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 803 }
 804
 805 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 806   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 807
 808   // device_event_log must be initialized after the message loop. Calls to
 809   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 810   // platforms (e.g. chromeos) may have already initialized this.
 811   if (!device_event_log::IsInitialized())
 812     device_event_log::Initialize(0 /* default max entries */);
 813
 814   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 815     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 816 }
 817
 818 int ChromeBrowserMainParts::PreCreateThreads() {
 819   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 820   result_code_ = PreCreateThreadsImpl();
 821
 822   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 823 #if !defined(OS_ANDROID)
 824     // These members must be initialized before exiting this function normally.
 825     DCHECK(master_prefs_.get());
 826     DCHECK(browser_creator_.get());
 827 #endif  // !defined(OS_ANDROID)
 828     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 829       chrome_extra_parts_[i]->PreCreateThreads();
 830   }
 831
 832   return result_code_;
 833 }
 834
 835 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 836   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 837   run_message_loop_ = false;
 838 #if !defined(OS_ANDROID)
 839   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 840 #endif  // !defined(OS_ANDROID)
 841   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 842     return chrome::RESULT_CODE_MISSING_DATA;
 843
 844   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 845   MediaCaptureDevicesDispatcher::GetInstance();
 846
 847   // Android's first run is done in Java instead of native.
 848 #if !defined(OS_ANDROID)
 849   process_singleton_.reset(new ChromeProcessSingleton(
 850       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 851
 852   // Cache first run state early.
 853   first_run::IsChromeFirstRun();
 854 #endif  // !defined(OS_ANDROID)
 855
 856   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 857       JsonPrefStore::GetTaskRunnerForFile(
 858           base::FilePath(chrome::kLocalStorePoolName),
 859           BrowserThread::GetBlockingPool());
 860
 861   {
 862     TRACE_EVENT0("startup",
 863       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 864     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 865                                                   parsed_command_line()));
 866   }
 867
 868   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 869     TRACE_EVENT0("startup",
 870         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 871     // User wants to override default tracking status.
 872     std::string flag =
 873       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 874     // Default to basic profiling (no parent child support).
 875     tracked_objects::ThreadData::Status status =
 876           tracked_objects::ThreadData::PROFILING_ACTIVE;
 877     if (flag.compare("0") != 0)
 878       status = tracked_objects::ThreadData::DEACTIVATED;
 879     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 880   }
 881
 882   local_state_ = InitializeLocalState(
 883       local_state_task_runner.get(), parsed_command_line());
 884
 885 #if !defined(OS_ANDROID)
 886   // These members must be initialized before returning from this function.
 887   master_prefs_.reset(new first_run::MasterPrefs);
 888   // Android doesn't use StartupBrowserCreator.
 889   browser_creator_.reset(new StartupBrowserCreator);
 890   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 891   chrome::UMABrowsingActivityObserver::Init();
 892 #endif  // !defined(OS_ANDROID)
 893
 894 #if !defined(OS_CHROMEOS)
 895   // Convert active labs into switches. This needs to be done before
 896   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 897   // affected by experiment flags (--touch-optimized-ui in particular).
 898   // On ChromeOS system level flags are applied from the device settings from
 899   // the session manager.
 900   {
 901     TRACE_EVENT0("startup",
 902         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 903     about_flags::PrefServiceFlagsStorage flags_storage_(
 904         g_browser_process->local_state());
 905     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 906                                         base::CommandLine::ForCurrentProcess(),
 907                                         about_flags::kAddSentinels);
 908   }
 909 #endif  // !defined(OS_CHROMEOS)
 910
 911   local_state_->UpdateCommandLinePrefStore(
 912       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 913
 914   // Reset the command line in the crash report details, since we may have
 915   // just changed it to include experiments.
 916   crash_keys::SetSwitchesFromCommandLine(
 917       base::CommandLine::ForCurrentProcess());
 918
 919   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 920   // needed when loading the MainMenu.nib and the language doesn't depend on
 921   // anything since it comes from Cocoa.
 922 #if defined(OS_MACOSX)
 923   std::string locale =
 924       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 925   browser_process_->SetApplicationLocale(locale);
 926 #else
 927   const std::string locale =
 928       local_state_->GetString(prefs::kApplicationLocale);
 929
 930   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 931   // method InitSharedInstance is ignored.
 932
 933   TRACE_EVENT_BEGIN0("startup",
 934       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 935   const std::string loaded_locale =
 936       ui::ResourceBundle::InitSharedInstanceWithLocale(
 937           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 938   TRACE_EVENT_END0("startup",
 939       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 940
 941   if (loaded_locale.empty() &&
 942       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 943     ShowMissingLocaleMessageBox();
 944     return chrome::RESULT_CODE_MISSING_DATA;
 945   }
 946   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 947   browser_process_->SetApplicationLocale(loaded_locale);
 948
 949   {
 950     TRACE_EVENT0("startup",
 951         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 952     base::FilePath resources_pack_path;
 953     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 954 #if defined(OS_ANDROID)
 955     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 956 #else
 957     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 958         resources_pack_path, ui::SCALE_FACTOR_NONE);
 959 #endif  // defined(OS_ANDROID)
 960   }
 961 #endif  // defined(OS_MACOSX)
 962
 963   // Android does first run in Java instead of native.
 964   // Chrome OS has its own out-of-box-experience code.
 965 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 966   // On first run, we need to process the predictor preferences before the
 967   // browser's profile_manager object is created, but after ResourceBundle
 968   // is initialized.
 969   if (first_run::IsChromeFirstRun()) {
 970     first_run::ProcessMasterPreferencesResult pmp_result =
 971         first_run::ProcessMasterPreferences(user_data_dir_,
 972                                             master_prefs_.get());
 973     if (pmp_result == first_run::EULA_EXIT_NOW)
 974       return chrome::RESULT_CODE_EULA_REFUSED;
 975
 976     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 977         !parsed_command_line().HasSwitch(switches::kAppId) &&
 978         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 979       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 980     }
 981
 982     // TODO(macourteau): refactor preferences that are copied from
 983     // master_preferences into local_state, as a "local_state" section in
 984     // master preferences. If possible, a generic solution would be preferred
 985     // over a copy one-by-one of specific preferences. Also see related TODO
 986     // in first_run.h.
 987
 988     // Store the initial VariationsService seed in local state, if it exists
 989     // in master prefs.
 990     if (!master_prefs_->variations_seed.empty() ||
 991         !master_prefs_->compressed_variations_seed.empty()) {
 992       if (!master_prefs_->variations_seed.empty()) {
 993         local_state_->SetString(chrome_variations::prefs::kVariationsSeed,
 994                                 master_prefs_->variations_seed);
 995       }
 996       if (!master_prefs_->compressed_variations_seed.empty()) {
 997         local_state_->SetString(
 998             chrome_variations::prefs::kVariationsCompressedSeed,
 999             master_prefs_->compressed_variations_seed);
1000       }
1001       if (!master_prefs_->variations_seed_signature.empty()) {
1002         local_state_->SetString(
1003             chrome_variations::prefs::kVariationsSeedSignature,
1004             master_prefs_->variations_seed_signature);
1005       }
1006       // Set the variation seed date to the current system time. If the user's
1007       // clock is incorrect, this may cause some field trial expiry checks to
1008       // not do the right thing until the next seed update from the server,
1009       // when this value will be updated.
1010       local_state_->SetInt64(chrome_variations::prefs::kVariationsSeedDate,
1011                              base::Time::Now().ToInternalValue());
1012     }
1013
1014     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
1015       local_state_->SetString(
1016           prefs::kBrowserSuppressDefaultBrowserPrompt,
1017           master_prefs_->suppress_default_browser_prompt_for_version);
1018     }
1019
1020 #if defined(OS_WIN)
1021     if (!master_prefs_->welcome_page_on_os_upgrade_enabled)
1022       local_state_->SetBoolean(prefs::kWelcomePageOnOSUpgradeEnabled, false);
1023 #endif
1024   }
1025 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1026
1027 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1028   // Set the product channel for crash reports.
1029   base::debug::SetCrashKeyValue(crash_keys::kChannel,
1030                                 chrome::GetChannelString());
1031 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1032
1033   // Initialize tracking synchronizer system.
1034   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
1035       make_scoped_ptr(new base::DefaultTickClock()));
1036
1037 #if defined(OS_MACOSX)
1038   // Get the Keychain API to register for distributed notifications on the main
1039   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
1040   // which doesn't. This ensures those notifications will get delivered
1041   // properly. See issue 37766.
1042   // (Note that the callback mask here is empty. I don't want to register for
1043   // any callbacks, I just want to initialize the mechanism.)
1044   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1045 #endif  // defined(OS_MACOSX)
1046
1047 #if defined(OS_CHROMEOS)
1048   // Must be done after g_browser_process is constructed, before
1049   // SetupMetricsAndFieldTrials().
1050   chromeos::CrosSettings::Initialize();
1051 #endif  // defined(OS_CHROMEOS)
1052
1053   // Now the command line has been mutated based on about:flags, we can setup
1054   // metrics and initialize field trials. The field trials are needed by
1055   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1056   SetupMetricsAndFieldTrials();
1057
1058   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1059   browser_process_->PreCreateThreads();
1060
1061   return content::RESULT_CODE_NORMAL_EXIT;
1062 }
1063
1064 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1065   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1066   TRACK_SCOPED_REGION(
1067       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1068
1069   result_code_ = PreMainMessageLoopRunImpl();
1070
1071   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1072     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1073 }
1074
1075 // PreMainMessageLoopRun calls these extra stages in the following order:
1076 //  PreMainMessageLoopRunImpl()
1077 //   ... initial setup, including browser_process_ setup.
1078 //   PreProfileInit()
1079 //   ... additional setup, including CreateProfile()
1080 //   PostProfileInit()
1081 //   ... additional setup
1082 //   PreBrowserStart()
1083 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1084 //   PostBrowserStart()
1085
1086 void ChromeBrowserMainParts::PreProfileInit() {
1087   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1088
1089   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1090     chrome_extra_parts_[i]->PreProfileInit();
1091
1092 #if !defined(OS_ANDROID)
1093   // Initialize the feedback uploader so it can setup notifications for profile
1094   // creation.
1095   feedback::FeedbackProfileObserver::Initialize();
1096
1097   // Ephemeral profiles may have been left behind if the browser crashed.
1098   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1099 #endif  // !defined(OS_ANDROID)
1100
1101 #if defined(ENABLE_EXTENSIONS)
1102   javascript_dialog_extensions_client::InstallClient();
1103 #endif  // defined(ENABLE_EXTENSIONS)
1104
1105 #if !defined(OS_IOS)
1106   InstallChromeJavaScriptNativeDialogFactory();
1107 #endif  // !defined(OS_IOS)
1108 }
1109
1110 void ChromeBrowserMainParts::PostProfileInit() {
1111   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1112
1113 #if defined(OS_ANDROID)
1114   DevToolsDiscoveryProviderAndroid::Install();
1115 #else
1116   ChromeDevToolsDiscoveryProvider::Install();
1117 #endif  // defined(OS_ANDROID)
1118
1119   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1120   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1121     chrome_extra_parts_[i]->PostProfileInit();
1122 }
1123
1124 void ChromeBrowserMainParts::PreBrowserStart() {
1125   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1126   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1127     chrome_extra_parts_[i]->PreBrowserStart();
1128
1129   three_d_observer_.reset(new ThreeDAPIObserver());
1130
1131   // Start the out-of-memory priority manager here so that we give the most
1132   // amount of time for the other services to start up before we start
1133   // adjusting the oom priority.
1134   //
1135   // On CrOS, it is always enabled. On other platforms, it's behind a flag for
1136   // now.
1137 #if defined(OS_CHROMEOS)
1138   g_browser_process->GetOomPriorityManager()->Start();
1139 #elif defined(OS_WIN) || defined(OS_MACOSX)
1140   const std::string group_name =
1141       base::FieldTrialList::FindFullName("AutomaticTabDiscarding");
1142   if (parsed_command_line().HasSwitch(switches::kEnableTabDiscarding) ||
1143       base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE)) {
1144     g_browser_process->GetOomPriorityManager()->Start();
1145   }
1146 #endif
1147 }
1148
1149 void ChromeBrowserMainParts::PostBrowserStart() {
1150   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1151   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1152     chrome_extra_parts_[i]->PostBrowserStart();
1153 #if !defined(OS_ANDROID)
1154   // Allow ProcessSingleton to process messages.
1155   process_singleton_->Unlock();
1156 #endif  // !defined(OS_ANDROID)
1157 #if defined(ENABLE_WEBRTC)
1158   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1159   // to reduce the impact on startup time.
1160   BrowserThread::PostDelayedTask(
1161       BrowserThread::UI,
1162       FROM_HERE,
1163       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1164       base::TimeDelta::FromMinutes(1));
1165 #endif  // defined(ENABLE_WEBRTC)
1166
1167   // At this point, StartupBrowserCreator::Start has run creating initial
1168   // browser windows and tabs, but no progress has been made in loading
1169   // content as the main message loop hasn't started processing tasks yet.
1170   // We setup to observe to the initial page load here to defer running
1171   // task posted via PostAfterStartupTask until its complete.
1172   AfterStartupTaskUtils::StartMonitoringStartup();
1173 }
1174
1175 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1176   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1177   TRACK_SCOPED_REGION(
1178       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1179
1180   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1181   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1182
1183 #if defined(OS_WIN)
1184   // Windows parental controls calls can be slow, so we do an early init here
1185   // that calculates this value off of the UI thread.
1186   IncognitoModePrefs::InitializePlatformParentalControls();
1187 #endif
1188
1189 #if defined(ENABLE_EXTENSIONS)
1190   if (!variations::GetVariationParamValue(
1191       "LightSpeed", "EarlyInitStartup").empty()) {
1192     // Try to compute this early on another thread so that we don't spend time
1193     // during profile load initializing the extensions APIs.
1194     BrowserThread::PostTask(
1195         BrowserThread::FILE_USER_BLOCKING,
1196         FROM_HERE,
1197         base::Bind(
1198             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1199   }
1200 #endif
1201
1202   // Android updates the metrics service dynamically depending on whether the
1203   // application is in the foreground or not. Do not start here.
1204 #if !defined(OS_ANDROID)
1205   // Now that the file thread has been started, start recording.
1206   StartMetricsRecording();
1207 #endif  // !defined(OS_ANDROID)
1208
1209   if (!base::debug::BeingDebugged()) {
1210     // Create watchdog thread after creating all other threads because it will
1211     // watch the other threads and they must be running.
1212     browser_process_->watchdog_thread();
1213   }
1214
1215   // Do any initializating in the browser process that requires all threads
1216   // running.
1217   browser_process_->PreMainMessageLoopRun();
1218
1219   // Record last shutdown time into a histogram.
1220   browser_shutdown::ReadLastShutdownInfo();
1221
1222 #if defined(OS_WIN)
1223   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1224   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1225   // upgrade/uninstall happen separately.
1226   bool already_running = browser_util::IsBrowserAlreadyRunning();
1227
1228   // If the command line specifies 'uninstall' then we need to work here
1229   // unless we detect another chrome browser running.
1230   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1231     return DoUninstallTasks(already_running);
1232   }
1233
1234   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1235       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1236     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1237         parsed_command_line_);
1238   }
1239
1240   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1241       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1242 #endif  // defined(OS_WIN)
1243
1244   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1245     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1246         prefs::kDefaultBrowserSettingEnabled);
1247     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1248         prefs::kDefaultBrowserSettingEnabled)) {
1249       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1250     }
1251
1252     return ShellIntegration::SetAsDefaultBrowser() ?
1253         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1254         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1255   }
1256
1257 #if defined(USE_AURA)
1258   // Make sure aura::Env has been initialized.
1259   CHECK(aura::Env::GetInstance());
1260 #endif  // defined(USE_AURA)
1261
1262   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1263 #if !defined(OS_ANDROID)
1264   // If the command line specifies --pack-extension, attempt the pack extension
1265   // startup action and exit.
1266   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1267     extensions::StartupHelper extension_startup_helper;
1268     if (extension_startup_helper.PackExtension(parsed_command_line()))
1269       return content::RESULT_CODE_NORMAL_EXIT;
1270     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1271   }
1272
1273   // When another process is running, use that process instead of starting a
1274   // new one. NotifyOtherProcess will currently give the other process up to
1275   // 20 seconds to respond. Note that this needs to be done before we attempt
1276   // to read the profile.
1277   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1278   switch (notify_result_) {
1279     case ProcessSingleton::PROCESS_NONE:
1280       // No process already running, fall through to starting a new one.
1281       break;
1282
1283     case ProcessSingleton::PROCESS_NOTIFIED:
1284 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1285       // On POSIX systems, print a message notifying the process is running.
1286       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1287           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1288 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1289
1290       // Having a differentiated return type for testing allows for tests to
1291       // verify proper handling of some switches. When not testing, stick to
1292       // the standard Unix convention of returning zero when things went as
1293       // expected.
1294       if (parsed_command_line().HasSwitch(switches::kTestType))
1295         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1296       return content::RESULT_CODE_NORMAL_EXIT;
1297
1298     case ProcessSingleton::PROFILE_IN_USE:
1299       return chrome::RESULT_CODE_PROFILE_IN_USE;
1300
1301     case ProcessSingleton::LOCK_ERROR:
1302       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1303                     "directory. This means that running multiple instances "
1304                     "would start multiple browser processes rather than "
1305                     "opening a new window in the existing process. Aborting "
1306                     "now to avoid profile corruption.";
1307       return chrome::RESULT_CODE_PROFILE_IN_USE;
1308
1309     default:
1310       NOTREACHED();
1311   }
1312 #endif  // !defined(OS_ANDROID)
1313
1314   // Handle special early return paths (which couldn't be processed even earlier
1315   // as they require the process singleton to be held) first.
1316
1317   std::string try_chrome =
1318       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1319   if (!try_chrome.empty()) {
1320 #if defined(OS_WIN)
1321     // Setup.exe has determined that we need to run a retention experiment
1322     // and has lauched chrome to show the experiment UI. It is guaranteed that
1323     // no other Chrome is currently running as the process singleton was
1324     // sucessfully grabbed above.
1325     int try_chrome_int;
1326     base::StringToInt(try_chrome, &try_chrome_int);
1327     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1328         try_chrome_int,
1329         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1330                    base::Unretained(process_singleton_.get())));
1331     if (answer == TryChromeDialogView::NOT_NOW)
1332       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1333     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1334       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1335     // At this point the user is willing to try chrome again.
1336     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1337       // Only set in the unattended case, the interactive case is Windows 8.
1338       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1339           ShellIntegration::SET_DEFAULT_UNATTENDED)
1340         ShellIntegration::SetAsDefaultBrowser();
1341     }
1342 #else
1343     // We don't support retention experiments on Mac or Linux.
1344     return content::RESULT_CODE_NORMAL_EXIT;
1345 #endif  // defined(OS_WIN)
1346   }
1347
1348 #if defined(OS_WIN)
1349   // Do the tasks if chrome has been upgraded while it was last running.
1350   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1351     return content::RESULT_CODE_NORMAL_EXIT;
1352
1353   // Check if there is any machine level Chrome installed on the current
1354   // machine. If yes and the current Chrome process is user level, we do not
1355   // allow the user level Chrome to run. So we notify the user and uninstall
1356   // user level Chrome.
1357   // Note this check needs to happen here (after the process singleton was
1358   // obtained but before potentially creating the first run sentinel).
1359   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1360     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1361 #endif  // defined(OS_WIN)
1362
1363 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1364   if (sxs_linux::ShouldMigrateUserDataDir())
1365     return sxs_linux::MigrateUserDataDir();
1366 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1367
1368   // Desktop construction occurs here, (required before profile creation).
1369   PreProfileInit();
1370
1371   // Profile creation ----------------------------------------------------------
1372
1373   metrics::MetricsService::SetExecutionPhase(
1374       metrics::MetricsService::CREATE_PROFILE,
1375       g_browser_process->local_state());
1376
1377   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1378                       base::TimeTicks::Now() - start_time_step1);
1379
1380   // This step is costly and is already measured in Startup.CreateFirstProfile
1381   // and more directly Profile.CreateAndInitializeProfile.
1382   profile_ = CreatePrimaryProfile(parameters(),
1383                                   user_data_dir_,
1384                                   parsed_command_line());
1385   if (!profile_)
1386     return content::RESULT_CODE_NORMAL_EXIT;
1387
1388 #if !defined(OS_ANDROID)
1389   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1390   // The first run sentinel must be created after the process singleton was
1391   // grabbed and no early return paths were otherwise hit above.
1392   first_run::CreateSentinelIfNeeded();
1393 #endif  // !defined(OS_ANDROID)
1394
1395 #if defined(ENABLE_BACKGROUND)
1396   // Autoload any profiles which are running background apps.
1397   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1398   browser_process_->profile_manager()->AutoloadProfiles();
1399 #endif  // defined(ENABLE_BACKGROUND)
1400   // Post-profile init ---------------------------------------------------------
1401
1402   TranslateService::Initialize();
1403
1404   // Needs to be done before PostProfileInit, since login manager on CrOS is
1405   // called inside PostProfileInit.
1406   content::WebUIControllerFactory::RegisterFactory(
1407       ChromeWebUIControllerFactory::GetInstance());
1408
1409   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1410   // So make sure to create it before that.
1411 #if !defined(DISABLE_NACL)
1412   NaClBrowserDelegateImpl* delegate =
1413       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1414   nacl::NaClBrowser::SetDelegate(delegate);
1415 #endif  // !defined(DISABLE_NACL)
1416
1417   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1418   // (requires supporting early exit).
1419   PostProfileInit();
1420
1421   // Retrieve cached GL strings from local state and use them for GPU
1422   // blacklist decisions.
1423   if (g_browser_process->gl_string_manager())
1424     g_browser_process->gl_string_manager()->Initialize();
1425
1426   // Create an instance of GpuModeManager to watch gpu mode pref change.
1427   g_browser_process->gpu_mode_manager();
1428
1429 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1430   // Show the First Run UI if this is the first time Chrome has been run on
1431   // this computer, or we're being compelled to do so by a command line flag.
1432   // Note that this be done _after_ the PrefService is initialized and all
1433   // preferences are registered, since some of the code that the importer
1434   // touches reads preferences.
1435   if (first_run::IsChromeFirstRun()) {
1436     first_run::AutoImport(profile_,
1437                           master_prefs_->homepage_defined,
1438                           master_prefs_->do_import_items,
1439                           master_prefs_->dont_import_items,
1440                           master_prefs_->import_bookmarks_path);
1441
1442     // Note: this can pop the first run consent dialog on linux.
1443     first_run::DoPostImportTasks(profile_,
1444                                  master_prefs_->make_chrome_default_for_user);
1445
1446     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1447       browser_creator_->set_show_main_browser_window(
1448           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1449     } else {
1450       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1451     }
1452   }
1453 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1454
1455 #if defined(OS_WIN)
1456   // Sets things up so that if we crash from this point on, a dialog will
1457   // popup asking the user to restart chrome. It is done this late to avoid
1458   // testing against a bunch of special cases that are taken care early on.
1459   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1460       parsed_command_line());
1461
1462   // Registers Chrome with the Windows Restart Manager, which will restore the
1463   // Chrome session when the computer is restarted after a system update.
1464   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1465   // but should run on startup if extended to handle crashes/hangs/patches.
1466   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1467   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1468     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1469         parsed_command_line());
1470   }
1471
1472   // Verify that the profile is not on a network share and if so prepare to show
1473   // notification to the user.
1474   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1475     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1476         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1477                    profile_->GetPath()));
1478   }
1479 #endif  // defined(OS_WIN)
1480
1481 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1482   // Init the RLZ library. This just binds the dll and schedules a task on the
1483   // file thread to be run sometime later. If this is the first run we record
1484   // the installation event.
1485   PrefService* pref_service = profile_->GetPrefs();
1486   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1487       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1488   // Negative ping delay means to send ping immediately after a first search is
1489   // recorded.
1490   rlz::RLZTracker::SetRlzDelegate(
1491       make_scoped_ptr(new ChromeRLZTrackerDelegate));
1492   rlz::RLZTracker::InitRlzDelayed(
1493       first_run::IsChromeFirstRun(), ping_delay < 0,
1494       base::TimeDelta::FromMilliseconds(abs(ping_delay)),
1495       ChromeRLZTrackerDelegate::IsGoogleDefaultSearch(profile_),
1496       ChromeRLZTrackerDelegate::IsGoogleHomepage(profile_),
1497       ChromeRLZTrackerDelegate::IsGoogleInStartpages(profile_));
1498 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1499
1500   // Configure modules that need access to resources.
1501   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1502
1503   // In unittest mode, this will do nothing.  In normal mode, this will create
1504   // the global IntranetRedirectDetector instance, which will promptly go to
1505   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1506   // to see if it should do anything else.
1507   //
1508   // A simpler way of doing all this would be to have some function which could
1509   // give the time elapsed since startup, and simply have this object check that
1510   // when asked to initialize itself, but this doesn't seem to exist.
1511   //
1512   // This can't be created in the BrowserProcessImpl constructor because it
1513   // needs to read prefs that get set after that runs.
1514   browser_process_->intranet_redirect_detector();
1515   GoogleSearchCounter::RegisterForNotifications();
1516
1517 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1518   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1519     base::FilePath path =
1520         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1521     printing::PrintedDocument::set_debug_dump_path(path);
1522   }
1523 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1524
1525   HandleTestParameters(parsed_command_line());
1526   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1527       base::debug::BeingDebugged());
1528
1529   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1530       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1531   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1532       browser_process_->GetApplicationLocale());
1533
1534   // Start watching for hangs during startup. We disarm this hang detector when
1535   // ThreadWatcher takes over or when browser is shutdown or when
1536   // startup_watcher_ is deleted.
1537   metrics::MetricsService::SetExecutionPhase(
1538       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1539       g_browser_process->local_state());
1540   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1541
1542   // On mobile, need for clean shutdown arises only when the application comes
1543   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1544   // http://crbug.com/179143
1545 #if !defined(OS_ANDROID)
1546   // Start watching for a hang.
1547   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1548 #endif  // !defined(OS_ANDROID)
1549
1550 #if defined(ENABLE_PRINT_PREVIEW)
1551   // Create the instance of the cloud print proxy service so that it can launch
1552   // the service process if needed. This is needed because the service process
1553   // might have shutdown because an update was available.
1554   // TODO(torne): this should maybe be done with
1555   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1556   // instead?
1557   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1558 #endif  // defined(ENABLE_PRINT_PREVIEW)
1559
1560   // Start watching all browser threads for responsiveness.
1561   metrics::MetricsService::SetExecutionPhase(
1562       metrics::MetricsService::THREAD_WATCHER_START,
1563       g_browser_process->local_state());
1564   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1565
1566 #if defined(OS_ANDROID)
1567   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1568 #endif  // defined(OS_ANDROID)
1569
1570 #if !defined(DISABLE_NACL)
1571   BrowserThread::PostTask(
1572       BrowserThread::IO,
1573       FROM_HERE,
1574       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1575 #endif  // !defined(DISABLE_NACL)
1576
1577   // Make sure initial prefs are recorded
1578   PrefMetricsService::Factory::GetForProfile(profile_);
1579
1580   PreBrowserStart();
1581
1582   // Instantiate the notification UI manager, as this triggers a perf timer
1583   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1584   // triggering the timer and call that explicitly in the approprate place.
1585   // http://crbug.com/105065.
1586   browser_process_->notification_ui_manager();
1587
1588   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1589   // data source is based on the Component Updater.
1590   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1591
1592   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1593     RegisterComponentsForUpdate();
1594
1595 #if defined(OS_ANDROID)
1596   chrome_variations::VariationsService* variations_service =
1597       browser_process_->variations_service();
1598   if (variations_service) {
1599     // Just initialize the policy prefs service here. Variations seed fetching
1600     // will be initialized when the app enters foreground mode.
1601     variations_service->set_policy_pref_service(profile_->GetPrefs());
1602   }
1603   translate::TranslateDownloadManager::RequestLanguageList(
1604       profile_->GetPrefs());
1605
1606 #else
1607   // Most general initialization is behind us, but opening a
1608   // tab and/or session restore and such is still to be done.
1609   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1610
1611   // We are in regular browser boot sequence. Open initial tabs and enter the
1612   // main message loop.
1613 #if defined(OS_CHROMEOS)
1614   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1615   // them this early as the cryptohome hasn't yet been mounted (which happens
1616   // only once we log in.
1617   std::vector<Profile*> last_opened_profiles;
1618 #else
1619   std::vector<Profile*> last_opened_profiles =
1620       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1621 #endif  // defined(OS_CHROMEOS)
1622
1623   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1624                       base::TimeTicks::Now() - start_time_step2);
1625
1626   // This step is costly and is already measured in
1627   // Startup.StartupBrowserCreator_Start.
1628   bool started = browser_creator_->Start(
1629       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1630   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1631   if (started) {
1632 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1633     // Initialize autoupdate timer. Timer callback costs basically nothing
1634     // when browser is not in persistent mode, so it's OK to let it ride on
1635     // the main thread. This needs to be done here because we don't want
1636     // to start the timer when Chrome is run inside a test harness.
1637     browser_process_->StartAutoupdateTimer();
1638 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1639
1640 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1641     // On Linux, the running exe will be updated if an upgrade becomes
1642     // available while the browser is running.  We need to save the last
1643     // modified time of the exe, so we can compare to determine if there is
1644     // an upgrade while the browser is kept alive by a persistent extension.
1645     upgrade_util::SaveLastModifiedTimeOfExe();
1646 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1647
1648     // Record now as the last successful chrome start.
1649     GoogleUpdateSettings::SetLastRunTime();
1650
1651 #if defined(OS_MACOSX)
1652     // Call Recycle() here as late as possible, before going into the loop
1653     // because Start() will add things to it while creating the main window.
1654     if (parameters().autorelease_pool)
1655       parameters().autorelease_pool->Recycle();
1656 #endif  // defined(OS_MACOSX)
1657
1658     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1659     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1660
1661     // If we're running tests (ui_task is non-null), then we don't want to
1662     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1663     // RequestLanguageList
1664     if (parameters().ui_task == NULL) {
1665       // Request new variations seed information from server.
1666       chrome_variations::VariationsService* variations_service =
1667           browser_process_->variations_service();
1668       if (variations_service)
1669         variations_service->PerformPreMainMessageLoopStartup();
1670
1671       translate::TranslateDownloadManager::RequestLanguageList(
1672           profile_->GetPrefs());
1673     }
1674
1675     run_message_loop_ = true;
1676   } else {
1677     run_message_loop_ = false;
1678   }
1679   browser_creator_.reset();
1680
1681 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1682   if (g_browser_process->metrics_service()->reporting_active())
1683     content::StartPowerUsageMonitor();
1684 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1685
1686   process_power_collector_.reset(new ProcessPowerCollector);
1687   process_power_collector_->Initialize();
1688 #endif  // !defined(OS_ANDROID)
1689
1690   PostBrowserStart();
1691
1692   if (parameters().ui_task) {
1693     parameters().ui_task->Run();
1694     delete parameters().ui_task;
1695     run_message_loop_ = false;
1696   }
1697 #if defined(OS_ANDROID)
1698   // We never run the C++ main loop on Android, since the UI thread message
1699   // loop is controlled by the OS, so this is as close as we can get to
1700   // the start of the main loop.
1701   if (result_code_ <= 0) {
1702     RecordBrowserStartupTime();
1703   }
1704 #endif  // defined(OS_ANDROID)
1705
1706 #if !defined(OS_ANDROID)
1707   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1708                       base::TimeTicks::Now() - start_time_step3);
1709 #endif  // !defined(OS_ANDROID)
1710
1711   return result_code_;
1712 }
1713
1714 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1715   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1716 #if defined(OS_ANDROID)
1717   // Chrome on Android does not use default MessageLoop. It has its own
1718   // Android specific MessageLoop
1719   NOTREACHED();
1720   return true;
1721 #else
1722   // Set the result code set in PreMainMessageLoopRun or set above.
1723   *result_code = result_code_;
1724   if (!run_message_loop_)
1725     return true;  // Don't run the default message loop.
1726
1727   // These should be invoked as close to the start of the browser's
1728   // UI thread message loop as possible to get a stable measurement
1729   // across versions.
1730   RecordBrowserStartupTime();
1731
1732   DCHECK(base::MessageLoopForUI::IsCurrent());
1733   base::RunLoop run_loop;
1734
1735   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1736
1737   metrics::MetricsService::SetExecutionPhase(
1738       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1739       g_browser_process->local_state());
1740   run_loop.Run();
1741
1742   return true;
1743 #endif  // defined(OS_ANDROID)
1744 }
1745
1746 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1747   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1748 #if defined(OS_ANDROID)
1749   // Chrome on Android does not use default MessageLoop. It has its own
1750   // Android specific MessageLoop
1751   NOTREACHED();
1752 #else
1753   // Start watching for jank during shutdown. It gets disarmed when
1754   // |shutdown_watcher_| object is destructed.
1755   metrics::MetricsService::SetExecutionPhase(
1756       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1757       g_browser_process->local_state());
1758   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1759
1760   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1761   startup_watcher_->Disarm();
1762
1763   // Remove observers attached to D-Bus clients before DbusThreadManager is
1764   // shut down.
1765   process_power_collector_.reset();
1766
1767   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1768     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1769
1770   // Some tests don't set parameters.ui_task, so they started translate
1771   // language fetch that was never completed so we need to cleanup here
1772   // otherwise it will be done by the destructor in a wrong thread.
1773   TranslateService::Shutdown(parameters().ui_task == NULL);
1774
1775   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1776     process_singleton_->Cleanup();
1777
1778   // Stop all tasks that might run on WatchDogThread.
1779   ThreadWatcherList::StopWatchingAll();
1780
1781   browser_process_->metrics_service()->Stop();
1782
1783   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1784   browser_process_->StartTearDown();
1785 #endif  // defined(OS_ANDROID)
1786 }
1787
1788 void ChromeBrowserMainParts::PostDestroyThreads() {
1789 #if defined(OS_ANDROID)
1790   // On Android, there is no quit/exit. So the browser's main message loop will
1791   // not finish.
1792   NOTREACHED();
1793 #else
1794   browser_process_->PostDestroyThreads();
1795   // browser_shutdown takes care of deleting browser_process, so we need to
1796   // release it.
1797   ignore_result(browser_process_.release());
1798   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1799   master_prefs_.reset();
1800   process_singleton_.reset();
1801   device_event_log::Shutdown();
1802
1803   // We need to do this check as late as possible, but due to modularity, this
1804   // may be the last point in Chrome.  This would be more effective if done at
1805   // a higher level on the stack, so that it is impossible for an early return
1806   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1807   // paths from content/browser/browser_main.
1808   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1809
1810 #if defined(OS_CHROMEOS)
1811   chromeos::CrosSettings::Shutdown();
1812 #endif  // defined(OS_CHROMEOS)
1813 #endif  // defined(OS_ANDROID)
1814 }
1815
1816 // Public members:
1817
1818 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1819   chrome_extra_parts_.push_back(parts);
1820 }