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