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/nacl_host/nacl_browser_delegate_impl.h"
  68 #include "chrome/browser/net/chrome_net_log.h"
  69 #include "chrome/browser/net/crl_set_fetcher.h"
  70 #include "chrome/browser/performance_monitor/performance_monitor.h"
  71 #include "chrome/browser/plugins/plugin_prefs.h"
  72 #include "chrome/browser/power/process_power_collector.h"
  73 #include "chrome/browser/pref_service_flags_storage.h"
  74 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
  75 #include "chrome/browser/prefs/command_line_pref_store.h"
  76 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  77 #include "chrome/browser/prefs/pref_metrics_service.h"
  78 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  79 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  80 #include "chrome/browser/process_singleton.h"
  81 #include "chrome/browser/profiles/profile.h"
  82 #include "chrome/browser/profiles/profile_manager.h"
  83 #include "chrome/browser/profiles/profiles_state.h"
  84 #include "chrome/browser/shell_integration.h"
  85 #include "chrome/browser/tracing/navigation_tracing.h"
  86 #include "chrome/browser/translate/translate_service.h"
  87 #include "chrome/browser/ui/app_list/app_list_service.h"
  88 #include "chrome/browser/ui/browser.h"
  89 #include "chrome/browser/ui/browser_finder.h"
  90 #include "chrome/browser/ui/host_desktop.h"
  91 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  92 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  93 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  94 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  95 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  96 #include "chrome/common/channel_info.h"
  97 #include "chrome/common/chrome_constants.h"
  98 #include "chrome/common/chrome_paths.h"
  99 #include "chrome/common/chrome_result_codes.h"
 100 #include "chrome/common/chrome_switches.h"
 101 #include "chrome/common/crash_keys.h"
 102 #include "chrome/common/env_vars.h"
 103 #include "chrome/common/logging_chrome.h"
 104 #include "chrome/common/net/net_resource_provider.h"
 105 #include "chrome/common/pref_names.h"
 106 #include "chrome/common/profiling.h"
 107 #include "chrome/common/variations/variations_util.h"
 108 #include "chrome/grit/generated_resources.h"
 109 #include "chrome/installer/util/google_update_settings.h"
 110 #include "components/component_updater/component_updater_service.h"
 111 #include "components/device_event_log/device_event_log.h"
 112 #include "components/google/core/browser/google_util.h"
 113 #include "components/language_usage_metrics/language_usage_metrics.h"
 114 #include "components/metrics/call_stack_profile_metrics_provider.h"
 115 #include "components/metrics/metrics_service.h"
 116 #include "components/metrics/profiler/tracking_synchronizer.h"
 117 #include "components/nacl/browser/nacl_browser.h"
 118 #include "components/rappor/rappor_service.h"
 119 #include "components/signin/core/common/profile_management_switches.h"
 120 #include "components/startup_metric_utils/startup_metric_utils.h"
 121 #include "components/tracing/tracing_switches.h"
 122 #include "components/translate/content/browser/browser_cld_utils.h"
 123 #include "components/translate/content/common/cld_data_source.h"
 124 #include "components/translate/core/browser/translate_download_manager.h"
 125 #include "components/variations/net/variations_http_header_provider.h"
 126 #include "components/variations/pref_names.h"
 127 #include "components/variations/service/variations_service.h"
 128 #include "components/variations/variations_associated_data.h"
 129 #include "components/variations/variations_switches.h"
 130 #include "components/version_info/version_info.h"
 131 #include "content/public/browser/browser_thread.h"
 132 #include "content/public/browser/notification_observer.h"
 133 #include "content/public/browser/notification_registrar.h"
 134 #include "content/public/browser/notification_service.h"
 135 #include "content/public/browser/notification_types.h"
 136 #include "content/public/browser/power_usage_monitor.h"
 137 #include "content/public/browser/site_instance.h"
 138 #include "content/public/common/content_client.h"
 139 #include "content/public/common/content_switches.h"
 140 #include "content/public/common/main_function_params.h"
 141 #include "grit/platform_locale_settings.h"
 142 #include "media/audio/audio_manager.h"
 143 #include "net/base/net_module.h"
 144 #include "net/cookies/cookie_monster.h"
 145 #include "net/http/http_network_layer.h"
 146 #include "net/http/http_stream_factory.h"
 147 #include "net/url_request/url_request.h"
 148 #include "ui/base/l10n/l10n_util.h"
 149 #include "ui/base/layout.h"
 150 #include "ui/base/resource/resource_bundle.h"
 151 #include "ui/strings/grit/app_locale_settings.h"
 152
 153 #if defined(OS_ANDROID)
 154 #include "chrome/browser/android/dev_tools_discovery_provider_android.h"
 155 #include "chrome/browser/metrics/thread_watcher_android.h"
 156 #include "ui/base/resource/resource_bundle_android.h"
 157 #else
 158 #include "chrome/browser/devtools/chrome_devtools_discovery_provider.h"
 159 #include "chrome/browser/feedback/feedback_profile_observer.h"
 160 #endif  // defined(OS_ANDROID)
 161
 162 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 163 #include "chrome/browser/first_run/upgrade_util_linux.h"
 164 #include "chrome/browser/sxs_linux.h"
 165 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
 166
 167 #if defined(OS_CHROMEOS)
 168 #include "chrome/browser/chromeos/settings/cros_settings.h"
 169 #include "chromeos/chromeos_switches.h"
 170 #include "chromeos/settings/cros_settings_names.h"
 171 #endif  // defined(OS_CHROMEOS)
 172
 173 // TODO(port): several win-only methods have been pulled out of this, but
 174 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 175 // other platforms. For now, it's just a stub. This is a serious work in
 176 // progress and should not be taken as an indication of a real refactoring.
 177
 178 #if defined(OS_WIN)
 179 #include "base/environment.h"  // For PreRead experiment.
 180 #include "base/trace_event/trace_event_etw_export_win.h"
 181 #include "base/win/windows_version.h"
 182 #include "chrome/browser/browser_util_win.h"
 183 #include "chrome/browser/chrome_browser_main_win.h"
 184 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 185 #include "chrome/browser/component_updater/caps_installer_win.h"
 186 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 187 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 188 #include "chrome/browser/first_run/upgrade_util_win.h"
 189 #include "chrome/browser/ui/network_profile_bubble.h"
 190 #include "chrome/installer/util/helper.h"
 191 #include "chrome/installer/util/install_util.h"
 192 #include "chrome/installer/util/shell_util.h"
 193 #include "components/browser_watcher/exit_funnel_win.h"
 194 #include "net/base/net_util.h"
 195 #include "ui/base/l10n/l10n_util_win.h"
 196 #include "ui/gfx/win/dpi.h"
 197 #include "ui/shell_dialogs/select_file_dialog.h"
 198 #endif  // defined(OS_WIN)
 199
 200 #if defined(OS_MACOSX)
 201 #include <Security/Security.h>
 202
 203 #include "base/mac/scoped_nsautorelease_pool.h"
 204 #include "chrome/browser/mac/keystone_glue.h"
 205 #endif  // defined(OS_MACOSX)
 206
 207 #if !defined(OS_IOS)
 208 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 209 #endif  // !defined(OS_IOS)
 210
 211 #if !defined(DISABLE_NACL)
 212 #include "chrome/browser/component_updater/pnacl_component_installer.h"
 213 #include "components/nacl/browser/nacl_process_host.h"
 214 #endif  // !defined(DISABLE_NACL)
 215
 216 #if defined(ENABLE_EXTENSIONS)
 217 #include "chrome/browser/extensions/startup_helper.h"
 218 #include "extensions/browser/extension_protocols.h"
 219 #include "extensions/common/features/feature_provider.h"
 220 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 221 #endif  // defined(ENABLE_EXTENSIONS)
 222
 223 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 224 #include "printing/printed_document.h"
 225 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 226
 227 #if defined(ENABLE_RLZ)
 228 #include "chrome/browser/rlz/chrome_rlz_tracker_delegate.h"
 229 #include "components/rlz/rlz_tracker.h"
 230 #endif  // defined(ENABLE_RLZ)
 231
 232 #if defined(ENABLE_WEBRTC)
 233 #include "chrome/browser/media/webrtc_log_util.h"
 234 #endif  // defined(ENABLE_WEBRTC)
 235
 236 #if defined(USE_AURA)
 237 #include "ui/aura/env.h"
 238 #endif  // defined(USE_AURA)
 239
 240 using content::BrowserThread;
 241
 242 namespace {
 243
 244 // This function provides some ways to test crash and assertion handling
 245 // behavior of the program.
 246 void HandleTestParameters(const base::CommandLine& command_line) {
 247   // This parameter causes a null pointer crash (crash reporter trigger).
 248   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 249     int* bad_pointer = NULL;
 250     *bad_pointer = 0;
 251   }
 252 }
 253
 254 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 255 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 256                         const std::vector<GURL>& new_tabs) {
 257   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 258        it != new_tabs.end(); ++it) {
 259     if (it->is_valid())
 260       browser_creator->AddFirstRunTab(*it);
 261   }
 262 }
 263 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 264
 265 // Returns the new local state object, guaranteed non-NULL.
 266 // |local_state_task_runner| must be a shutdown-blocking task runner.
 267 PrefService* InitializeLocalState(
 268     base::SequencedTaskRunner* local_state_task_runner,
 269     const base::CommandLine& parsed_command_line) {
 270   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 271
 272   // Load local state.  This includes the application locale so we know which
 273   // locale dll to load.  This also causes local state prefs to be registered.
 274   PrefService* local_state = g_browser_process->local_state();
 275   DCHECK(local_state);
 276
 277 #if defined(OS_WIN)
 278   if (first_run::IsChromeFirstRun()) {
 279     // During first run we read the google_update registry key to find what
 280     // language the user selected when downloading the installer. This
 281     // becomes our default language in the prefs.
 282     // Other platforms obey the system locale.
 283     base::string16 install_lang;
 284     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 285       local_state->SetString(prefs::kApplicationLocale,
 286                              base::UTF16ToASCII(install_lang));
 287     }
 288   }
 289 #endif  // defined(OS_WIN)
 290
 291   // If the local state file for the current profile doesn't exist and the
 292   // parent profile command line flag is present, then we should inherit some
 293   // local state from the parent profile.
 294   // Checking that the local state file for the current profile doesn't exist
 295   // is the most robust way to determine whether we need to inherit or not
 296   // since the parent profile command line flag can be present even when the
 297   // current profile is not a new one, and in that case we do not want to
 298   // inherit and reset the user's setting.
 299   //
 300   // TODO(mnissler): We should probably just instantiate a
 301   // JSONPrefStore here instead of an entire PrefService. Once this is
 302   // addressed, the call to browser_prefs::RegisterLocalState can move
 303   // to chrome_prefs::CreateLocalState.
 304   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 305     base::FilePath local_state_path;
 306     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 307     bool local_state_file_exists = base::PathExists(local_state_path);
 308     if (!local_state_file_exists) {
 309       base::FilePath parent_profile =
 310           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 311       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 312       scoped_ptr<PrefService> parent_local_state(
 313           chrome_prefs::CreateLocalState(
 314               parent_profile,
 315               local_state_task_runner,
 316               g_browser_process->policy_service(),
 317               registry,
 318               false));
 319       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 320       // Right now, we only inherit the locale setting from the parent profile.
 321       local_state->SetString(
 322           prefs::kApplicationLocale,
 323           parent_local_state->GetString(prefs::kApplicationLocale));
 324     }
 325   }
 326
 327 #if defined(OS_CHROMEOS)
 328   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 329     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 330     // Ensure that we start with owner's locale.
 331     if (!owner_locale.empty() &&
 332         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 333         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 334       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 335     }
 336   }
 337 #endif  // defined(OS_CHROMEOS)
 338
 339   return local_state;
 340 }
 341
 342 // Initializes the primary profile, possibly doing some user prompting to pick
 343 // a fallback profile. Returns the newly created profile, or NULL if startup
 344 // should not continue.
 345 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 346                               const base::FilePath& user_data_dir,
 347                               const base::CommandLine& parsed_command_line) {
 348   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 349   TRACK_SCOPED_REGION(
 350       "Startup", "ChromeBrowserMainParts::CreatePrimaryProfile");
 351
 352   base::Time start = base::Time::Now();
 353   if (profiles::IsMultipleProfilesEnabled() &&
 354       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 355     profiles::SetLastUsedProfile(
 356         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 357     // Clear kProfilesLastActive since the user only wants to launch a specific
 358     // profile.
 359     ListPrefUpdate update(g_browser_process->local_state(),
 360                           prefs::kProfilesLastActive);
 361     base::ListValue* profile_list = update.Get();
 362     profile_list->Clear();
 363   }
 364
 365   Profile* profile = NULL;
 366 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 367   // On ChromeOS and Android the ProfileManager will use the same path as the
 368   // one we got passed. GetActiveUserProfile will therefore use the correct path
 369   // automatically.
 370   DCHECK_EQ(user_data_dir.value(),
 371             g_browser_process->profile_manager()->user_data_dir().value());
 372   profile = ProfileManager::GetActiveUserProfile();
 373 #else
 374   base::FilePath profile_path =
 375       GetStartupProfilePath(user_data_dir, parsed_command_line);
 376
 377   // Without NewAvatarMenu, replace guest with any existing profile.
 378   if (!switches::IsNewAvatarMenu() &&
 379       profile_path == ProfileManager::GetGuestProfilePath()) {
 380     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 381         GetPathOfProfileAtIndex(0);
 382   }
 383   profile = g_browser_process->profile_manager()->GetProfile(
 384       profile_path);
 385
 386   // If we're using the --new-profile-management flag and this profile is
 387   // signed out, then we should show the user manager instead. By switching
 388   // the active profile to the guest profile we ensure that no
 389   // browser windows will be opened for the guest profile.
 390   if (switches::IsNewProfileManagement() &&
 391       profile &&
 392       !profile->IsGuestSession()) {
 393     ProfileInfoCache& cache =
 394         g_browser_process->profile_manager()->GetProfileInfoCache();
 395     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 396
 397     if (profile_index != std::string::npos &&
 398         cache.ProfileIsSigninRequiredAtIndex(profile_index)) {
 399       profile = g_browser_process->profile_manager()->GetProfile(
 400           ProfileManager::GetGuestProfilePath());
 401     }
 402   }
 403 #endif  // defined(OS_CHROMEOS) || defined(OS_ANDROID)
 404   if (profile) {
 405     UMA_HISTOGRAM_LONG_TIMES(
 406         "Startup.CreateFirstProfile", base::Time::Now() - start);
 407     return profile;
 408   }
 409
 410 #if !defined(OS_WIN)
 411   // TODO(port): fix this.  See comments near the definition of
 412   // user_data_dir.  It is better to CHECK-fail here than it is to
 413   // silently exit because of missing code in the above test.
 414   CHECK(profile) << "Cannot get default profile.";
 415 #endif  // !defined(OS_WIN)
 416
 417   return NULL;
 418 }
 419
 420 #if defined(OS_MACOSX)
 421 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 422                           SecKeychainCallbackInfo* info, void* context) {
 423   return noErr;
 424 }
 425 #endif  // defined(OS_MACOSX)
 426
 427 void RegisterComponentsForUpdate() {
 428   component_updater::ComponentUpdateService* cus =
 429       g_browser_process->component_updater();
 430
 431   // Registration can be before or after cus->Start() so it is ok to post
 432   // a task to the UI thread to do registration once you done the necessary
 433   // file IO to know you existing component version.
 434 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 435   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 436   RegisterPepperFlashComponent(cus);
 437   RegisterSwiftShaderComponent(cus);
 438   RegisterWidevineCdmComponent(cus);
 439 #endif  // !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 440
 441 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 442 #if defined(OS_CHROMEOS)
 443   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 444   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 445   // installer when running on Linux. See crbug.com/422121 for more details.
 446   if (!base::SysInfo::IsRunningOnChromeOS())
 447 #endif  // defined(OS_CHROMEOS)
 448     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 449 #endif  // !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 450
 451   // Registration of the CLD Component is a no-op unless the CLD data source has
 452   // been configured to be the "Component" data source.
 453   RegisterCldComponent(cus);
 454
 455   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 456       g_browser_process->supervised_user_whitelist_installer();
 457   whitelist_installer->RegisterComponents();
 458
 459   base::FilePath path;
 460   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 461 #if defined(OS_ANDROID)
 462     // The CRLSet component was enabled for some releases. This code attempts to
 463     // delete it from the local disk of those how may have downloaded it.
 464     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 465 #elif !defined(OS_CHROMEOS)
 466     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 467     // network.
 468     // For Chrome OS this registration is delayed until user login.
 469     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 470     // Registration of the EV Whitelist component here is not necessary for:
 471     // 1. Android: Because it currently does not have the EV indicator.
 472     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 473     RegisterEVWhitelistComponent(cus, path);
 474 #endif  // defined(OS_ANDROID)
 475   }
 476
 477 #if defined(OS_WIN)
 478 #if defined(GOOGLE_CHROME_BUILD)
 479   RegisterSwReporterComponent(cus);
 480 #endif  // defined(GOOGLE_CHROME_BUILD)
 481   RegisterCAPSComponent(cus);
 482 #endif  // defined(OS_WIN)
 483 }
 484
 485 #if !defined(OS_ANDROID)
 486 bool ProcessSingletonNotificationCallback(
 487     const base::CommandLine& command_line,
 488     const base::FilePath& current_directory) {
 489   // Drop the request if the browser process is already in shutdown path.
 490   if (!g_browser_process || g_browser_process->IsShuttingDown()) {
 491 #if defined(OS_WIN)
 492     browser_watcher::ExitFunnel::RecordSingleEvent(
 493         chrome::kBrowserExitCodesRegistryPath,
 494         L"ProcessSingletonIsShuttingDown");
 495 #endif  // defined(OS_WIN)
 496
 497     return false;
 498   }
 499
 500   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 501     std::string start_time_string =
 502         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 503     int64 remote_start_time;
 504     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 505       base::TimeDelta elapsed =
 506           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 507       if (command_line.HasSwitch(switches::kFastStart)) {
 508         UMA_HISTOGRAM_LONG_TIMES(
 509             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 510       } else {
 511         UMA_HISTOGRAM_LONG_TIMES(
 512             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 513       }
 514     }
 515   }
 516
 517   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 518       command_line);
 519
 520   base::FilePath user_data_dir =
 521       g_browser_process->profile_manager()->user_data_dir();
 522   base::FilePath startup_profile_dir =
 523       GetStartupProfilePath(user_data_dir, command_line);
 524
 525   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 526       command_line, current_directory, startup_profile_dir);
 527   return true;
 528 }
 529 #endif  // !defined(OS_ANDROID)
 530
 531 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 532   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 533     std::string port_str =
 534         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 535     int port;
 536     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 537       g_browser_process->CreateDevToolsHttpProtocolHandler(
 538           chrome::HOST_DESKTOP_TYPE_NATIVE,
 539           "127.0.0.1",
 540           static_cast<uint16>(port));
 541     } else {
 542       DLOG(WARNING) << "Invalid http debugger port number " << port;
 543     }
 544   }
 545 }
 546
 547 base::StackSamplingProfiler::SamplingParams GetStartupSamplingParams() {
 548   // Sample at 10Hz for 30 seconds.
 549   base::StackSamplingProfiler::SamplingParams params;
 550   params.initial_delay = base::TimeDelta::FromMilliseconds(0);
 551   params.bursts = 1;
 552   params.samples_per_burst = 300;
 553   params.sampling_interval = base::TimeDelta::FromMilliseconds(100);
 554   return params;
 555 }
 556
 557 }  // namespace
 558
 559 namespace chrome_browser {
 560
 561 // This error message is not localized because we failed to load the
 562 // localization data files.
 563 #if defined(OS_WIN)
 564 const char kMissingLocaleDataTitle[] = "Missing File Error";
 565 #endif  // defined(OS_WIN)
 566
 567 #if defined(OS_WIN)
 568 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 569 const char kMissingLocaleDataMessage[] =
 570     "Unable to find locale data files. Please reinstall.";
 571 #endif  // defined(OS_WIN)
 572
 573 }  // namespace chrome_browser
 574
 575 // BrowserMainParts ------------------------------------------------------------
 576
 577 ChromeBrowserMainParts::ChromeBrowserMainParts(
 578     const content::MainFunctionParams& parameters)
 579     : parameters_(parameters),
 580       parsed_command_line_(parameters.command_line),
 581       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 582       startup_watcher_(new StartupTimeBomb()),
 583       shutdown_watcher_(new ShutdownWatcherHelper()),
 584       browser_field_trials_(parameters.command_line),
 585       sampling_profiler_(
 586           base::PlatformThread::CurrentId(),
 587           GetStartupSamplingParams(),
 588           metrics::CallStackProfileMetricsProvider::GetProfilerCallback(
 589               metrics::CallStackProfileMetricsProvider::Params(
 590                   metrics::CallStackProfileMetricsProvider::PROCESS_STARTUP,
 591                   false))),
 592       profile_(NULL),
 593       run_message_loop_(true),
 594       notify_result_(ProcessSingleton::PROCESS_NONE),
 595       local_state_(NULL),
 596       restart_last_session_(false) {
 597   const version_info::Channel channel = chrome::GetChannel();
 598   if (channel == version_info::Channel::UNKNOWN ||
 599       channel == version_info::Channel::CANARY ||
 600       channel == version_info::Channel::DEV) {
 601     sampling_profiler_.Start();
 602   }
 603
 604   // If we're running tests (ui_task is non-null).
 605   if (parameters.ui_task)
 606     browser_defaults::enable_help_app = false;
 607
 608   // Chrome disallows cookies by default. All code paths that want to use
 609   // cookies need to go through one of Chrome's URLRequestContexts which have
 610   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 611   net::URLRequest::SetDefaultCookiePolicyToBlock();
 612 }
 613
 614 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 615   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 616     delete chrome_extra_parts_[i];
 617   chrome_extra_parts_.clear();
 618 }
 619
 620 // This will be called after the command-line has been mutated by about:flags
 621 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 622   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 623   // Must initialize metrics after labs have been converted into switches,
 624   // but before field trials are set up (so that client ID is available for
 625   // one-time randomized field trials).
 626
 627   // Initialize FieldTrialList to support FieldTrials that use one-time
 628   // randomization.
 629   metrics::MetricsService* metrics = browser_process_->metrics_service();
 630   field_trial_list_.reset(
 631       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 632
 633   const base::CommandLine* command_line =
 634       base::CommandLine::ForCurrentProcess();
 635   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 636       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 637     base::FieldTrial::EnableBenchmarking();
 638   }
 639
 640   if (command_line->HasSwitch(switches::kForceFieldTrialParams)) {
 641     bool result = chrome_variations::AssociateParamsFromString(
 642         command_line->GetSwitchValueASCII(switches::kForceFieldTrialParams));
 643     CHECK(result) << "Invalid --" << switches::kForceFieldTrialParams
 644                   << " list specified.";
 645   }
 646
 647   // Ensure any field trials specified on the command line are initialized.
 648   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 649     std::set<std::string> unforceable_field_trials;
 650 #if defined(OFFICIAL_BUILD)
 651     unforceable_field_trials.insert("SettingsEnforcement");
 652 #endif  // defined(OFFICIAL_BUILD)
 653
 654     // Create field trials without activating them, so that this behaves in a
 655     // consistent manner with field trials created from the server.
 656     bool result = base::FieldTrialList::CreateTrialsFromString(
 657         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 658         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 659         unforceable_field_trials);
 660     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 661                   << " list specified.";
 662   }
 663
 664 #if defined(FIELDTRIAL_TESTING_ENABLED)
 665   if (!command_line->HasSwitch(switches::kDisableFieldTrialTestingConfig) &&
 666       !command_line->HasSwitch(switches::kForceFieldTrials) &&
 667       !command_line->HasSwitch(
 668           chrome_variations::switches::kVariationsServerURL))
 669     chrome_variations::AssociateDefaultFieldTrialConfig();
 670 #endif  // defined(FIELDTRIAL_TESTING_ENABLED)
 671
 672   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 673     // Create default variation ids which will always be included in the
 674     // X-Client-Data request header.
 675     variations::VariationsHttpHeaderProvider* provider =
 676         variations::VariationsHttpHeaderProvider::GetInstance();
 677     bool result = provider->SetDefaultVariationIds(
 678         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 679     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 680                   << " list specified.";
 681     metrics->AddSyntheticTrialObserver(provider);
 682   }
 683   chrome_variations::VariationsService* variations_service =
 684       browser_process_->variations_service();
 685   if (variations_service)
 686     variations_service->CreateTrialsFromSeed();
 687
 688   // This must be called after |local_state_| is initialized.
 689   browser_field_trials_.SetupFieldTrials();
 690
 691   // Enable Navigation Tracing only if a trace upload url is specified.
 692   if (command_line->HasSwitch(switches::kEnableNavigationTracing) &&
 693       command_line->HasSwitch(switches::kTraceUploadURL)) {
 694     tracing::SetupNavigationTracing();
 695   }
 696
 697   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 698   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 699   // Even though base::Bind does AddRef and Release, the object will not be
 700   // deleted after the Task is executed.
 701   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 702
 703   // Now that field trials have been created, initializes metrics recording.
 704   metrics->InitializeMetricsRecordingState();
 705
 706   const version_info::Channel channel = chrome::GetChannel();
 707
 708   // TODO(dalecurtis): Remove these checks and enable for all channels once we
 709   // track down the root causes of crbug.com/422522 and crbug.com/478932.
 710   if (channel == version_info::Channel::UNKNOWN ||
 711       channel == version_info::Channel::CANARY ||
 712       channel == version_info::Channel::DEV) {
 713     media::AudioManager::EnableHangMonitor();
 714   }
 715
 716   // Enable profiler instrumentation depending on the channel.
 717   switch (channel) {
 718     case version_info::Channel::UNKNOWN:
 719     case version_info::Channel::CANARY:
 720       tracked_objects::ScopedTracker::Enable();
 721       break;
 722
 723     case version_info::Channel::DEV:
 724     case version_info::Channel::BETA:
 725     case version_info::Channel::STABLE:
 726       // Don't enable instrumentation.
 727       break;
 728   }
 729 }
 730
 731 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 732
 733 void ChromeBrowserMainParts::StartMetricsRecording() {
 734   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 735
 736   g_browser_process->metrics_service()->CheckForClonedInstall(
 737       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 738
 739   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 740 }
 741
 742 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 743   // Don't record any metrics if UI was displayed before this point e.g.
 744   // warning dialogs.
 745   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 746     return;
 747
 748   bool is_first_run = false;
 749 #if !defined(OS_ANDROID)
 750   // On Android, first run is handled in Java code, and the C++ side of Chrome
 751   // doesn't know if this is the first run. This will cause some inaccuracy in
 752   // the UMA statistics, but this should be minor (first runs are rare).
 753   is_first_run = first_run::IsChromeFirstRun();
 754 #endif  // defined(OS_ANDROID)
 755
 756   // Record collected startup metrics.
 757   startup_metric_utils::RecordBrowserMainMessageLoopStart(base::Time::Now(),
 758                                                           is_first_run);
 759 }
 760
 761 // -----------------------------------------------------------------------------
 762 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 763
 764 #if defined(OS_WIN)
 765 #define DLLEXPORT __declspec(dllexport)
 766
 767 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 768 extern "C" {
 769 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 770 }
 771
 772 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 773   // Need an instance of AtExitManager to handle singleton creations and
 774   // deletions.  We need this new instance because, the old instance created
 775   // in ChromeMain() got destructed when the function returned.
 776   base::AtExitManager exit_manager;
 777   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 778 }
 779 #endif
 780
 781 // content::BrowserMainParts implementation ------------------------------------
 782
 783 void ChromeBrowserMainParts::PreEarlyInitialization() {
 784   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 785   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 786     chrome_extra_parts_[i]->PreEarlyInitialization();
 787 }
 788
 789 void ChromeBrowserMainParts::PostEarlyInitialization() {
 790   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 791   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 792     chrome_extra_parts_[i]->PostEarlyInitialization();
 793 }
 794
 795 void ChromeBrowserMainParts::ToolkitInitialized() {
 796   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 797   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 798     chrome_extra_parts_[i]->ToolkitInitialized();
 799 }
 800
 801 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 802   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 803
 804   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 805     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 806 }
 807
 808 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 809   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 810
 811   // device_event_log must be initialized after the message loop. Calls to
 812   // {DEVICE}_LOG prior to here will only be logged with VLOG. Some
 813   // platforms (e.g. chromeos) may have already initialized this.
 814   if (!device_event_log::IsInitialized())
 815     device_event_log::Initialize(0 /* default max entries */);
 816
 817   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 818     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 819 }
 820
 821 int ChromeBrowserMainParts::PreCreateThreads() {
 822   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 823   result_code_ = PreCreateThreadsImpl();
 824
 825   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 826 #if !defined(OS_ANDROID)
 827     // These members must be initialized before exiting this function normally.
 828     DCHECK(master_prefs_.get());
 829     DCHECK(browser_creator_.get());
 830 #endif  // !defined(OS_ANDROID)
 831     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 832       chrome_extra_parts_[i]->PreCreateThreads();
 833   }
 834
 835   return result_code_;
 836 }
 837
 838 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 839   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 840   run_message_loop_ = false;
 841 #if !defined(OS_ANDROID)
 842   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 843 #endif  // !defined(OS_ANDROID)
 844   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 845     return chrome::RESULT_CODE_MISSING_DATA;
 846
 847   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 848   MediaCaptureDevicesDispatcher::GetInstance();
 849
 850   // Android's first run is done in Java instead of native.
 851 #if !defined(OS_ANDROID)
 852   process_singleton_.reset(new ChromeProcessSingleton(
 853       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 854
 855   // Cache first run state early.
 856   first_run::IsChromeFirstRun();
 857 #endif  // !defined(OS_ANDROID)
 858
 859   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 860       JsonPrefStore::GetTaskRunnerForFile(
 861           base::FilePath(chrome::kLocalStorePoolName),
 862           BrowserThread::GetBlockingPool());
 863
 864   {
 865     TRACE_EVENT0("startup",
 866       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 867     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 868                                                   parsed_command_line()));
 869   }
 870
 871   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 872     TRACE_EVENT0("startup",
 873         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 874     // User wants to override default tracking status.
 875     std::string flag =
 876       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 877     // Default to basic profiling (no parent child support).
 878     tracked_objects::ThreadData::Status status =
 879           tracked_objects::ThreadData::PROFILING_ACTIVE;
 880     if (flag.compare("0") != 0)
 881       status = tracked_objects::ThreadData::DEACTIVATED;
 882     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 883   }
 884
 885   local_state_ = InitializeLocalState(
 886       local_state_task_runner.get(), parsed_command_line());
 887
 888 #if !defined(OS_ANDROID)
 889   // These members must be initialized before returning from this function.
 890   master_prefs_.reset(new first_run::MasterPrefs);
 891   // Android doesn't use StartupBrowserCreator.
 892   browser_creator_.reset(new StartupBrowserCreator);
 893   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 894   chrome::UMABrowsingActivityObserver::Init();
 895 #endif  // !defined(OS_ANDROID)
 896
 897 #if !defined(OS_CHROMEOS)
 898   // Convert active labs into switches. This needs to be done before
 899   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 900   // affected by experiment flags (--touch-optimized-ui in particular).
 901   // On ChromeOS system level flags are applied from the device settings from
 902   // the session manager.
 903   {
 904     TRACE_EVENT0("startup",
 905         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 906     about_flags::PrefServiceFlagsStorage flags_storage_(
 907         g_browser_process->local_state());
 908     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 909                                         base::CommandLine::ForCurrentProcess(),
 910                                         about_flags::kAddSentinels);
 911   }
 912 #endif  // !defined(OS_CHROMEOS)
 913
 914 #if defined(OS_WIN)
 915   // This is needed to enable ETW exporting when requested in about:flags.
 916   // Normally, we enable it in ContentMainRunnerImpl::Initialize when the flag
 917   // is present on the command line but flags in about:flags are converted only
 918   // after this function runs. Note that this starts exporting later which
 919   // affects tracing the browser startup. Also, this is only relevant for the
 920   // browser process, as other processes will get all the flags on their command
 921   // line regardless of the origin (command line or about:flags).
 922   if (parsed_command_line().HasSwitch(switches::kTraceExportEventsToETW))
 923     base::trace_event::TraceEventETWExport::EnableETWExport();
 924 #endif  // OS_WIN
 925
 926   local_state_->UpdateCommandLinePrefStore(
 927       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 928
 929   // Reset the command line in the crash report details, since we may have
 930   // just changed it to include experiments.
 931   crash_keys::SetSwitchesFromCommandLine(
 932       base::CommandLine::ForCurrentProcess());
 933
 934   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 935   // needed when loading the MainMenu.nib and the language doesn't depend on
 936   // anything since it comes from Cocoa.
 937 #if defined(OS_MACOSX)
 938   std::string locale =
 939       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 940   browser_process_->SetApplicationLocale(locale);
 941 #else
 942   const std::string locale =
 943       local_state_->GetString(prefs::kApplicationLocale);
 944
 945   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 946   // method InitSharedInstance is ignored.
 947
 948   TRACE_EVENT_BEGIN0("startup",
 949       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 950   const std::string loaded_locale =
 951       ui::ResourceBundle::InitSharedInstanceWithLocale(
 952           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 953   TRACE_EVENT_END0("startup",
 954       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 955
 956   if (loaded_locale.empty() &&
 957       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 958     ShowMissingLocaleMessageBox();
 959     return chrome::RESULT_CODE_MISSING_DATA;
 960   }
 961   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 962   browser_process_->SetApplicationLocale(loaded_locale);
 963
 964   {
 965     TRACE_EVENT0("startup",
 966         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 967     base::FilePath resources_pack_path;
 968     PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 969 #if defined(OS_ANDROID)
 970     ui::LoadMainAndroidPackFile("assets/resources.pak", resources_pack_path);
 971 #else
 972     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 973         resources_pack_path, ui::SCALE_FACTOR_NONE);
 974 #endif  // defined(OS_ANDROID)
 975   }
 976 #endif  // defined(OS_MACOSX)
 977
 978   // Android does first run in Java instead of native.
 979   // Chrome OS has its own out-of-box-experience code.
 980 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 981   // On first run, we need to process the predictor preferences before the
 982   // browser's profile_manager object is created, but after ResourceBundle
 983   // is initialized.
 984   if (first_run::IsChromeFirstRun()) {
 985     first_run::ProcessMasterPreferencesResult pmp_result =
 986         first_run::ProcessMasterPreferences(user_data_dir_,
 987                                             master_prefs_.get());
 988     if (pmp_result == first_run::EULA_EXIT_NOW)
 989       return chrome::RESULT_CODE_EULA_REFUSED;
 990
 991     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 992         !parsed_command_line().HasSwitch(switches::kAppId) &&
 993         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 994       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 995     }
 996
 997     // TODO(macourteau): refactor preferences that are copied from
 998     // master_preferences into local_state, as a "local_state" section in
 999     // master preferences. If possible, a generic solution would be preferred
1000     // over a copy one-by-one of specific preferences. Also see related TODO
1001     // in first_run.h.
1002
1003     // Store the initial VariationsService seed in local state, if it exists
1004     // in master prefs.
1005     if (!master_prefs_->variations_seed.empty() ||
1006         !master_prefs_->compressed_variations_seed.empty()) {
1007       if (!master_prefs_->variations_seed.empty()) {
1008         local_state_->SetString(chrome_variations::prefs::kVariationsSeed,
1009                                 master_prefs_->variations_seed);
1010       }
1011       if (!master_prefs_->compressed_variations_seed.empty()) {
1012         local_state_->SetString(
1013             chrome_variations::prefs::kVariationsCompressedSeed,
1014             master_prefs_->compressed_variations_seed);
1015       }
1016       if (!master_prefs_->variations_seed_signature.empty()) {
1017         local_state_->SetString(
1018             chrome_variations::prefs::kVariationsSeedSignature,
1019             master_prefs_->variations_seed_signature);
1020       }
1021       // Set the variation seed date to the current system time. If the user's
1022       // clock is incorrect, this may cause some field trial expiry checks to
1023       // not do the right thing until the next seed update from the server,
1024       // when this value will be updated.
1025       local_state_->SetInt64(chrome_variations::prefs::kVariationsSeedDate,
1026                              base::Time::Now().ToInternalValue());
1027     }
1028
1029     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
1030       local_state_->SetString(
1031           prefs::kBrowserSuppressDefaultBrowserPrompt,
1032           master_prefs_->suppress_default_browser_prompt_for_version);
1033     }
1034
1035 #if defined(OS_WIN)
1036     if (!master_prefs_->welcome_page_on_os_upgrade_enabled)
1037       local_state_->SetBoolean(prefs::kWelcomePageOnOSUpgradeEnabled, false);
1038 #endif
1039   }
1040 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1041
1042 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1043   // Set the product channel for crash reports.
1044   base::debug::SetCrashKeyValue(crash_keys::kChannel,
1045                                 chrome::GetChannelString());
1046 #endif  // defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
1047
1048   // Initialize tracking synchronizer system.
1049   tracking_synchronizer_ = new metrics::TrackingSynchronizer(
1050       make_scoped_ptr(new base::DefaultTickClock()));
1051
1052 #if defined(OS_MACOSX)
1053   // Get the Keychain API to register for distributed notifications on the main
1054   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
1055   // which doesn't. This ensures those notifications will get delivered
1056   // properly. See issue 37766.
1057   // (Note that the callback mask here is empty. I don't want to register for
1058   // any callbacks, I just want to initialize the mechanism.)
1059   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
1060 #endif  // defined(OS_MACOSX)
1061
1062 #if defined(OS_CHROMEOS)
1063   // Must be done after g_browser_process is constructed, before
1064   // SetupMetricsAndFieldTrials().
1065   chromeos::CrosSettings::Initialize();
1066 #endif  // defined(OS_CHROMEOS)
1067
1068   // Now the command line has been mutated based on about:flags, we can setup
1069   // metrics and initialize field trials. The field trials are needed by
1070   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1071   SetupMetricsAndFieldTrials();
1072
1073   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1074   browser_process_->PreCreateThreads();
1075
1076   return content::RESULT_CODE_NORMAL_EXIT;
1077 }
1078
1079 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1080   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1081   TRACK_SCOPED_REGION(
1082       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1083
1084   result_code_ = PreMainMessageLoopRunImpl();
1085
1086   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1087     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1088 }
1089
1090 // PreMainMessageLoopRun calls these extra stages in the following order:
1091 //  PreMainMessageLoopRunImpl()
1092 //   ... initial setup, including browser_process_ setup.
1093 //   PreProfileInit()
1094 //   ... additional setup, including CreateProfile()
1095 //   PostProfileInit()
1096 //   ... additional setup
1097 //   PreBrowserStart()
1098 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1099 //   PostBrowserStart()
1100
1101 void ChromeBrowserMainParts::PreProfileInit() {
1102   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1103
1104   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1105     chrome_extra_parts_[i]->PreProfileInit();
1106
1107 #if !defined(OS_ANDROID)
1108   // Initialize the feedback uploader so it can setup notifications for profile
1109   // creation.
1110   feedback::FeedbackProfileObserver::Initialize();
1111
1112   // Ephemeral profiles may have been left behind if the browser crashed.
1113   g_browser_process->profile_manager()->CleanUpEphemeralProfiles();
1114 #endif  // !defined(OS_ANDROID)
1115
1116 #if defined(ENABLE_EXTENSIONS)
1117   javascript_dialog_extensions_client::InstallClient();
1118 #endif  // defined(ENABLE_EXTENSIONS)
1119
1120 #if !defined(OS_IOS)
1121   InstallChromeJavaScriptNativeDialogFactory();
1122 #endif  // !defined(OS_IOS)
1123 }
1124
1125 void ChromeBrowserMainParts::PostProfileInit() {
1126   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1127
1128 #if defined(OS_ANDROID)
1129   DevToolsDiscoveryProviderAndroid::Install();
1130 #else
1131   ChromeDevToolsDiscoveryProvider::Install();
1132 #endif  // defined(OS_ANDROID)
1133
1134   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1135   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1136     chrome_extra_parts_[i]->PostProfileInit();
1137 }
1138
1139 void ChromeBrowserMainParts::PreBrowserStart() {
1140   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1141   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1142     chrome_extra_parts_[i]->PreBrowserStart();
1143
1144   three_d_observer_.reset(new ThreeDAPIObserver());
1145
1146   // Start the out-of-memory priority manager here so that we give the most
1147   // amount of time for the other services to start up before we start
1148   // adjusting the oom priority.
1149   //
1150   // On CrOS, it is always enabled. On other platforms, it's behind a flag for
1151   // now.
1152 #if defined(OS_CHROMEOS)
1153   g_browser_process->GetOomPriorityManager()->Start();
1154 #elif defined(OS_WIN) || defined(OS_MACOSX)
1155   const std::string group_name =
1156       base::FieldTrialList::FindFullName("AutomaticTabDiscarding");
1157   if (parsed_command_line().HasSwitch(switches::kEnableTabDiscarding) ||
1158       base::StartsWith(group_name, "Enabled", base::CompareCase::SENSITIVE)) {
1159     g_browser_process->GetOomPriorityManager()->Start();
1160   }
1161 #endif
1162 }
1163
1164 void ChromeBrowserMainParts::PostBrowserStart() {
1165   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1166   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1167     chrome_extra_parts_[i]->PostBrowserStart();
1168 #if !defined(OS_ANDROID)
1169   // Allow ProcessSingleton to process messages.
1170   process_singleton_->Unlock();
1171 #endif  // !defined(OS_ANDROID)
1172 #if defined(ENABLE_WEBRTC)
1173   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1174   // to reduce the impact on startup time.
1175   BrowserThread::PostDelayedTask(
1176       BrowserThread::UI,
1177       FROM_HERE,
1178       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1179       base::TimeDelta::FromMinutes(1));
1180 #endif  // defined(ENABLE_WEBRTC)
1181
1182   // At this point, StartupBrowserCreator::Start has run creating initial
1183   // browser windows and tabs, but no progress has been made in loading
1184   // content as the main message loop hasn't started processing tasks yet.
1185   // We setup to observe to the initial page load here to defer running
1186   // task posted via PostAfterStartupTask until its complete.
1187   AfterStartupTaskUtils::StartMonitoringStartup();
1188 }
1189
1190 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1191   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1192   TRACK_SCOPED_REGION(
1193       "Startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1194
1195   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1196   const base::TimeTicks start_time_step1 = base::TimeTicks::Now();
1197
1198 #if defined(OS_WIN)
1199   // Windows parental controls calls can be slow, so we do an early init here
1200   // that calculates this value off of the UI thread.
1201   IncognitoModePrefs::InitializePlatformParentalControls();
1202 #endif
1203
1204 #if defined(ENABLE_EXTENSIONS)
1205   if (!variations::GetVariationParamValue(
1206       "LightSpeed", "EarlyInitStartup").empty()) {
1207     // Try to compute this early on another thread so that we don't spend time
1208     // during profile load initializing the extensions APIs.
1209     BrowserThread::PostTask(
1210         BrowserThread::FILE_USER_BLOCKING,
1211         FROM_HERE,
1212         base::Bind(
1213             base::IgnoreResult(&extensions::FeatureProvider::GetAPIFeatures)));
1214   }
1215 #endif
1216
1217   // Android updates the metrics service dynamically depending on whether the
1218   // application is in the foreground or not. Do not start here.
1219 #if !defined(OS_ANDROID)
1220   // Now that the file thread has been started, start recording.
1221   StartMetricsRecording();
1222 #endif  // !defined(OS_ANDROID)
1223
1224   if (!base::debug::BeingDebugged()) {
1225     // Create watchdog thread after creating all other threads because it will
1226     // watch the other threads and they must be running.
1227     browser_process_->watchdog_thread();
1228   }
1229
1230   // Do any initializating in the browser process that requires all threads
1231   // running.
1232   browser_process_->PreMainMessageLoopRun();
1233
1234   // Record last shutdown time into a histogram.
1235   browser_shutdown::ReadLastShutdownInfo();
1236
1237 #if defined(OS_WIN)
1238   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1239   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1240   // upgrade/uninstall happen separately.
1241   bool already_running = browser_util::IsBrowserAlreadyRunning();
1242
1243   // If the command line specifies 'uninstall' then we need to work here
1244   // unless we detect another chrome browser running.
1245   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1246     return DoUninstallTasks(already_running);
1247   }
1248
1249   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1250       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1251     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1252         parsed_command_line_);
1253   }
1254
1255   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1256       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1257 #endif  // defined(OS_WIN)
1258
1259   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1260     bool is_managed = g_browser_process->local_state()->IsManagedPreference(
1261         prefs::kDefaultBrowserSettingEnabled);
1262     if (is_managed && !g_browser_process->local_state()->GetBoolean(
1263         prefs::kDefaultBrowserSettingEnabled)) {
1264       return static_cast<int>(chrome::RESULT_CODE_ACTION_DISALLOWED_BY_POLICY);
1265     }
1266
1267     return ShellIntegration::SetAsDefaultBrowser() ?
1268         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1269         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1270   }
1271
1272 #if defined(USE_AURA)
1273   // Make sure aura::Env has been initialized.
1274   CHECK(aura::Env::GetInstance());
1275 #endif  // defined(USE_AURA)
1276
1277   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1278 #if !defined(OS_ANDROID)
1279   // If the command line specifies --pack-extension, attempt the pack extension
1280   // startup action and exit.
1281   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1282     extensions::StartupHelper extension_startup_helper;
1283     if (extension_startup_helper.PackExtension(parsed_command_line()))
1284       return content::RESULT_CODE_NORMAL_EXIT;
1285     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1286   }
1287
1288   // When another process is running, use that process instead of starting a
1289   // new one. NotifyOtherProcess will currently give the other process up to
1290   // 20 seconds to respond. Note that this needs to be done before we attempt
1291   // to read the profile.
1292   notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1293   switch (notify_result_) {
1294     case ProcessSingleton::PROCESS_NONE:
1295       // No process already running, fall through to starting a new one.
1296       break;
1297
1298     case ProcessSingleton::PROCESS_NOTIFIED:
1299 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1300       // On POSIX systems, print a message notifying the process is running.
1301       printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1302           l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1303 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
1304
1305       // Having a differentiated return type for testing allows for tests to
1306       // verify proper handling of some switches. When not testing, stick to
1307       // the standard Unix convention of returning zero when things went as
1308       // expected.
1309       if (parsed_command_line().HasSwitch(switches::kTestType))
1310         return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1311       return content::RESULT_CODE_NORMAL_EXIT;
1312
1313     case ProcessSingleton::PROFILE_IN_USE:
1314       return chrome::RESULT_CODE_PROFILE_IN_USE;
1315
1316     case ProcessSingleton::LOCK_ERROR:
1317       LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1318                     "directory. This means that running multiple instances "
1319                     "would start multiple browser processes rather than "
1320                     "opening a new window in the existing process. Aborting "
1321                     "now to avoid profile corruption.";
1322       return chrome::RESULT_CODE_PROFILE_IN_USE;
1323
1324     default:
1325       NOTREACHED();
1326   }
1327 #endif  // !defined(OS_ANDROID)
1328
1329   // Handle special early return paths (which couldn't be processed even earlier
1330   // as they require the process singleton to be held) first.
1331
1332   std::string try_chrome =
1333       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1334   if (!try_chrome.empty()) {
1335 #if defined(OS_WIN)
1336     // Setup.exe has determined that we need to run a retention experiment
1337     // and has lauched chrome to show the experiment UI. It is guaranteed that
1338     // no other Chrome is currently running as the process singleton was
1339     // sucessfully grabbed above.
1340     int try_chrome_int;
1341     base::StringToInt(try_chrome, &try_chrome_int);
1342     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1343         try_chrome_int,
1344         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1345                    base::Unretained(process_singleton_.get())));
1346     if (answer == TryChromeDialogView::NOT_NOW)
1347       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1348     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1349       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1350     // At this point the user is willing to try chrome again.
1351     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1352       // Only set in the unattended case, the interactive case is Windows 8.
1353       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1354           ShellIntegration::SET_DEFAULT_UNATTENDED)
1355         ShellIntegration::SetAsDefaultBrowser();
1356     }
1357 #else
1358     // We don't support retention experiments on Mac or Linux.
1359     return content::RESULT_CODE_NORMAL_EXIT;
1360 #endif  // defined(OS_WIN)
1361   }
1362
1363 #if defined(OS_WIN)
1364   // Do the tasks if chrome has been upgraded while it was last running.
1365   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1366     return content::RESULT_CODE_NORMAL_EXIT;
1367
1368   // Check if there is any machine level Chrome installed on the current
1369   // machine. If yes and the current Chrome process is user level, we do not
1370   // allow the user level Chrome to run. So we notify the user and uninstall
1371   // user level Chrome.
1372   // Note this check needs to happen here (after the process singleton was
1373   // obtained but before potentially creating the first run sentinel).
1374   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1375     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1376 #endif  // defined(OS_WIN)
1377
1378 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1379   if (sxs_linux::ShouldMigrateUserDataDir())
1380     return sxs_linux::MigrateUserDataDir();
1381 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1382
1383   // Desktop construction occurs here, (required before profile creation).
1384   PreProfileInit();
1385
1386   // Profile creation ----------------------------------------------------------
1387
1388   metrics::MetricsService::SetExecutionPhase(
1389       metrics::MetricsService::CREATE_PROFILE,
1390       g_browser_process->local_state());
1391
1392   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep1Time",
1393                       base::TimeTicks::Now() - start_time_step1);
1394
1395   // This step is costly and is already measured in Startup.CreateFirstProfile
1396   // and more directly Profile.CreateAndInitializeProfile.
1397   profile_ = CreatePrimaryProfile(parameters(),
1398                                   user_data_dir_,
1399                                   parsed_command_line());
1400   if (!profile_)
1401     return content::RESULT_CODE_NORMAL_EXIT;
1402
1403 #if !defined(OS_ANDROID)
1404   const base::TimeTicks start_time_step2 = base::TimeTicks::Now();
1405   // The first run sentinel must be created after the process singleton was
1406   // grabbed and no early return paths were otherwise hit above.
1407   first_run::CreateSentinelIfNeeded();
1408 #endif  // !defined(OS_ANDROID)
1409
1410 #if defined(ENABLE_BACKGROUND)
1411   // Autoload any profiles which are running background apps.
1412   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1413   browser_process_->profile_manager()->AutoloadProfiles();
1414 #endif  // defined(ENABLE_BACKGROUND)
1415   // Post-profile init ---------------------------------------------------------
1416
1417   TranslateService::Initialize();
1418
1419   // Needs to be done before PostProfileInit, since login manager on CrOS is
1420   // called inside PostProfileInit.
1421   content::WebUIControllerFactory::RegisterFactory(
1422       ChromeWebUIControllerFactory::GetInstance());
1423
1424   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1425   // So make sure to create it before that.
1426 #if !defined(DISABLE_NACL)
1427   NaClBrowserDelegateImpl* delegate =
1428       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1429   nacl::NaClBrowser::SetDelegate(delegate);
1430 #endif  // !defined(DISABLE_NACL)
1431
1432   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1433   // (requires supporting early exit).
1434   PostProfileInit();
1435
1436   // Retrieve cached GL strings from local state and use them for GPU
1437   // blacklist decisions.
1438   if (g_browser_process->gl_string_manager())
1439     g_browser_process->gl_string_manager()->Initialize();
1440
1441   // Create an instance of GpuModeManager to watch gpu mode pref change.
1442   g_browser_process->gpu_mode_manager();
1443
1444 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1445   // Show the First Run UI if this is the first time Chrome has been run on
1446   // this computer, or we're being compelled to do so by a command line flag.
1447   // Note that this be done _after_ the PrefService is initialized and all
1448   // preferences are registered, since some of the code that the importer
1449   // touches reads preferences.
1450   if (first_run::IsChromeFirstRun()) {
1451     first_run::AutoImport(profile_,
1452                           master_prefs_->homepage_defined,
1453                           master_prefs_->do_import_items,
1454                           master_prefs_->dont_import_items,
1455                           master_prefs_->import_bookmarks_path);
1456
1457     // Note: this can pop the first run consent dialog on linux.
1458     first_run::DoPostImportTasks(profile_,
1459                                  master_prefs_->make_chrome_default_for_user);
1460
1461     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1462       browser_creator_->set_show_main_browser_window(
1463           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1464     } else {
1465       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1466     }
1467   }
1468 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1469
1470 #if defined(OS_WIN)
1471   // Sets things up so that if we crash from this point on, a dialog will
1472   // popup asking the user to restart chrome. It is done this late to avoid
1473   // testing against a bunch of special cases that are taken care early on.
1474   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1475       parsed_command_line());
1476
1477   // Registers Chrome with the Windows Restart Manager, which will restore the
1478   // Chrome session when the computer is restarted after a system update.
1479   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1480   // but should run on startup if extended to handle crashes/hangs/patches.
1481   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1482   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1483     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1484         parsed_command_line());
1485   }
1486
1487   // Verify that the profile is not on a network share and if so prepare to show
1488   // notification to the user.
1489   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1490     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1491         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1492                    profile_->GetPath()));
1493   }
1494 #endif  // defined(OS_WIN)
1495
1496 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1497   // Init the RLZ library. This just binds the dll and schedules a task on the
1498   // file thread to be run sometime later. If this is the first run we record
1499   // the installation event.
1500   PrefService* pref_service = profile_->GetPrefs();
1501   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1502       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1503   // Negative ping delay means to send ping immediately after a first search is
1504   // recorded.
1505   rlz::RLZTracker::SetRlzDelegate(
1506       make_scoped_ptr(new ChromeRLZTrackerDelegate));
1507   rlz::RLZTracker::InitRlzDelayed(
1508       first_run::IsChromeFirstRun(), ping_delay < 0,
1509       base::TimeDelta::FromMilliseconds(abs(ping_delay)),
1510       ChromeRLZTrackerDelegate::IsGoogleDefaultSearch(profile_),
1511       ChromeRLZTrackerDelegate::IsGoogleHomepage(profile_),
1512       ChromeRLZTrackerDelegate::IsGoogleInStartpages(profile_));
1513 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1514
1515   // Configure modules that need access to resources.
1516   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1517
1518   // In unittest mode, this will do nothing.  In normal mode, this will create
1519   // the global IntranetRedirectDetector instance, which will promptly go to
1520   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1521   // to see if it should do anything else.
1522   //
1523   // A simpler way of doing all this would be to have some function which could
1524   // give the time elapsed since startup, and simply have this object check that
1525   // when asked to initialize itself, but this doesn't seem to exist.
1526   //
1527   // This can't be created in the BrowserProcessImpl constructor because it
1528   // needs to read prefs that get set after that runs.
1529   browser_process_->intranet_redirect_detector();
1530   GoogleSearchCounter::RegisterForNotifications();
1531
1532 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1533   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1534     base::FilePath path =
1535         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1536     printing::PrintedDocument::set_debug_dump_path(path);
1537   }
1538 #endif  // defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1539
1540   HandleTestParameters(parsed_command_line());
1541   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1542       base::debug::BeingDebugged());
1543
1544   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1545       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1546   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1547       browser_process_->GetApplicationLocale());
1548
1549   // Start watching for hangs during startup. We disarm this hang detector when
1550   // ThreadWatcher takes over or when browser is shutdown or when
1551   // startup_watcher_ is deleted.
1552   metrics::MetricsService::SetExecutionPhase(
1553       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1554       g_browser_process->local_state());
1555   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1556
1557   // On mobile, need for clean shutdown arises only when the application comes
1558   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1559   // http://crbug.com/179143
1560 #if !defined(OS_ANDROID)
1561   // Start watching for a hang.
1562   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1563 #endif  // !defined(OS_ANDROID)
1564
1565 #if defined(ENABLE_PRINT_PREVIEW)
1566   // Create the instance of the cloud print proxy service so that it can launch
1567   // the service process if needed. This is needed because the service process
1568   // might have shutdown because an update was available.
1569   // TODO(torne): this should maybe be done with
1570   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1571   // instead?
1572   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1573 #endif  // defined(ENABLE_PRINT_PREVIEW)
1574
1575   // Start watching all browser threads for responsiveness.
1576   metrics::MetricsService::SetExecutionPhase(
1577       metrics::MetricsService::THREAD_WATCHER_START,
1578       g_browser_process->local_state());
1579   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1580
1581 #if defined(OS_ANDROID)
1582   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1583 #endif  // defined(OS_ANDROID)
1584
1585 #if !defined(DISABLE_NACL)
1586   BrowserThread::PostTask(
1587       BrowserThread::IO,
1588       FROM_HERE,
1589       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1590 #endif  // !defined(DISABLE_NACL)
1591
1592   // Make sure initial prefs are recorded
1593   PrefMetricsService::Factory::GetForProfile(profile_);
1594
1595   PreBrowserStart();
1596
1597   // Instantiate the notification UI manager, as this triggers a perf timer
1598   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1599   // triggering the timer and call that explicitly in the approprate place.
1600   // http://crbug.com/105065.
1601   browser_process_->notification_ui_manager();
1602
1603   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1604   // data source is based on the Component Updater.
1605   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1606
1607   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1608     RegisterComponentsForUpdate();
1609
1610 #if defined(OS_ANDROID)
1611   chrome_variations::VariationsService* variations_service =
1612       browser_process_->variations_service();
1613   if (variations_service) {
1614     // Just initialize the policy prefs service here. Variations seed fetching
1615     // will be initialized when the app enters foreground mode.
1616     variations_service->set_policy_pref_service(profile_->GetPrefs());
1617   }
1618   translate::TranslateDownloadManager::RequestLanguageList(
1619       profile_->GetPrefs());
1620
1621 #else
1622   // Most general initialization is behind us, but opening a
1623   // tab and/or session restore and such is still to be done.
1624   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1625
1626   // We are in regular browser boot sequence. Open initial tabs and enter the
1627   // main message loop.
1628   std::vector<Profile*> last_opened_profiles;
1629 #if !defined(OS_CHROMEOS)
1630   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1631   // them this early as the cryptohome hasn't yet been mounted (which happens
1632   // only once we log in).
1633   last_opened_profiles =
1634       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1635 #endif  // defined(OS_CHROMEOS)
1636
1637   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep2Time",
1638                       base::TimeTicks::Now() - start_time_step2);
1639
1640   // This step is costly and is already measured in
1641   // Startup.StartupBrowserCreator_Start.
1642   const bool started = browser_creator_->Start(
1643       parsed_command_line(), base::FilePath(), profile_, last_opened_profiles);
1644   const base::TimeTicks start_time_step3 = base::TimeTicks::Now();
1645   if (started) {
1646 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1647     // Initialize autoupdate timer. Timer callback costs basically nothing
1648     // when browser is not in persistent mode, so it's OK to let it ride on
1649     // the main thread. This needs to be done here because we don't want
1650     // to start the timer when Chrome is run inside a test harness.
1651     browser_process_->StartAutoupdateTimer();
1652 #endif  // defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1653
1654 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1655     // On Linux, the running exe will be updated if an upgrade becomes
1656     // available while the browser is running.  We need to save the last
1657     // modified time of the exe, so we can compare to determine if there is
1658     // an upgrade while the browser is kept alive by a persistent extension.
1659     upgrade_util::SaveLastModifiedTimeOfExe();
1660 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1661
1662     // Record now as the last successful chrome start.
1663     GoogleUpdateSettings::SetLastRunTime();
1664
1665 #if defined(OS_MACOSX)
1666     // Call Recycle() here as late as possible, before going into the loop
1667     // because Start() will add things to it while creating the main window.
1668     if (parameters().autorelease_pool)
1669       parameters().autorelease_pool->Recycle();
1670 #endif  // defined(OS_MACOSX)
1671
1672     const base::TimeDelta delta = base::TimeTicks::Now() - browser_open_start;
1673     startup_metric_utils::RecordBrowserOpenTabsDelta(delta);
1674
1675     // If we're running tests (ui_task is non-null), then we don't want to
1676     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1677     // RequestLanguageList
1678     if (parameters().ui_task == NULL) {
1679       // Request new variations seed information from server.
1680       chrome_variations::VariationsService* variations_service =
1681           browser_process_->variations_service();
1682       if (variations_service)
1683         variations_service->PerformPreMainMessageLoopStartup();
1684
1685       translate::TranslateDownloadManager::RequestLanguageList(
1686           profile_->GetPrefs());
1687     }
1688   }
1689   run_message_loop_ = started;
1690   browser_creator_.reset();
1691
1692 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1693   if (g_browser_process->metrics_service()->reporting_active())
1694     content::StartPowerUsageMonitor();
1695 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
1696
1697   process_power_collector_.reset(new ProcessPowerCollector);
1698   process_power_collector_->Initialize();
1699 #endif  // !defined(OS_ANDROID)
1700
1701   PostBrowserStart();
1702
1703   if (parameters().ui_task) {
1704     parameters().ui_task->Run();
1705     delete parameters().ui_task;
1706     run_message_loop_ = false;
1707   }
1708 #if defined(OS_ANDROID)
1709   // We never run the C++ main loop on Android, since the UI thread message
1710   // loop is controlled by the OS, so this is as close as we can get to
1711   // the start of the main loop.
1712   if (result_code_ <= 0) {
1713     RecordBrowserStartupTime();
1714   }
1715 #endif  // defined(OS_ANDROID)
1716
1717 #if !defined(OS_ANDROID)
1718   UMA_HISTOGRAM_TIMES("Startup.PreMainMessageLoopRunImplStep3Time",
1719                       base::TimeTicks::Now() - start_time_step3);
1720 #endif  // !defined(OS_ANDROID)
1721
1722   return result_code_;
1723 }
1724
1725 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1726   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1727 #if defined(OS_ANDROID)
1728   // Chrome on Android does not use default MessageLoop. It has its own
1729   // Android specific MessageLoop
1730   NOTREACHED();
1731   return true;
1732 #else
1733   // Set the result code set in PreMainMessageLoopRun or set above.
1734   *result_code = result_code_;
1735   if (!run_message_loop_)
1736     return true;  // Don't run the default message loop.
1737
1738   // These should be invoked as close to the start of the browser's
1739   // UI thread message loop as possible to get a stable measurement
1740   // across versions.
1741   RecordBrowserStartupTime();
1742
1743   DCHECK(base::MessageLoopForUI::IsCurrent());
1744   base::RunLoop run_loop;
1745
1746   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1747
1748   metrics::MetricsService::SetExecutionPhase(
1749       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1750       g_browser_process->local_state());
1751   run_loop.Run();
1752
1753   return true;
1754 #endif  // defined(OS_ANDROID)
1755 }
1756
1757 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1758   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1759 #if defined(OS_ANDROID)
1760   // Chrome on Android does not use default MessageLoop. It has its own
1761   // Android specific MessageLoop
1762   NOTREACHED();
1763 #else
1764   // Start watching for jank during shutdown. It gets disarmed when
1765   // |shutdown_watcher_| object is destructed.
1766   metrics::MetricsService::SetExecutionPhase(
1767       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1768       g_browser_process->local_state());
1769   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1770
1771   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1772   startup_watcher_->Disarm();
1773
1774   // Remove observers attached to D-Bus clients before DbusThreadManager is
1775   // shut down.
1776   process_power_collector_.reset();
1777
1778   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1779     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1780
1781   // Some tests don't set parameters.ui_task, so they started translate
1782   // language fetch that was never completed so we need to cleanup here
1783   // otherwise it will be done by the destructor in a wrong thread.
1784   TranslateService::Shutdown(parameters().ui_task == NULL);
1785
1786   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1787     process_singleton_->Cleanup();
1788
1789   // Stop all tasks that might run on WatchDogThread.
1790   ThreadWatcherList::StopWatchingAll();
1791
1792   browser_process_->metrics_service()->Stop();
1793
1794   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1795   browser_process_->StartTearDown();
1796 #endif  // defined(OS_ANDROID)
1797 }
1798
1799 void ChromeBrowserMainParts::PostDestroyThreads() {
1800 #if defined(OS_ANDROID)
1801   // On Android, there is no quit/exit. So the browser's main message loop will
1802   // not finish.
1803   NOTREACHED();
1804 #else
1805   browser_process_->PostDestroyThreads();
1806   // browser_shutdown takes care of deleting browser_process, so we need to
1807   // release it.
1808   ignore_result(browser_process_.release());
1809   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1810   master_prefs_.reset();
1811   process_singleton_.reset();
1812   device_event_log::Shutdown();
1813
1814   // We need to do this check as late as possible, but due to modularity, this
1815   // may be the last point in Chrome.  This would be more effective if done at
1816   // a higher level on the stack, so that it is impossible for an early return
1817   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1818   // paths from content/browser/browser_main.
1819   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1820
1821 #if defined(OS_CHROMEOS)
1822   chromeos::CrosSettings::Shutdown();
1823 #endif  // defined(OS_CHROMEOS)
1824 #endif  // defined(OS_ANDROID)
1825 }
1826
1827 // Public members:
1828
1829 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1830   chrome_extra_parts_.push_back(parts);
1831 }