chrome/browser/chrome_browser_main.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_browser_main.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/at_exit.h"
  12 #include "base/bind.h"
  13 #include "base/command_line.h"
  14 #include "base/debug/crash_logging.h"
  15 #include "base/debug/debugger.h"
  16 #include "base/files/file_path.h"
  17 #include "base/files/file_util.h"
  18 #include "base/metrics/field_trial.h"
  19 #include "base/metrics/histogram_macros.h"
  20 #include "base/path_service.h"
  21 #include "base/prefs/json_pref_store.h"
  22 #include "base/prefs/pref_registry_simple.h"
  23 #include "base/prefs/pref_service.h"
  24 #include "base/prefs/pref_value_store.h"
  25 #include "base/prefs/scoped_user_pref_update.h"
  26 #include "base/process/process_info.h"
  27 #include "base/profiler/scoped_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/time.h"
  37 #include "base/trace_event/trace_event.h"
  38 #include "base/values.h"
  39 #include "build/build_config.h"
  40 #include "cc/base/switches.h"
  41 #include "chrome/browser/about_flags.h"
  42 #include "chrome/browser/browser_process.h"
  43 #include "chrome/browser/browser_process_impl.h"
  44 #include "chrome/browser/browser_process_platform_part.h"
  45 #include "chrome/browser/browser_shutdown.h"
  46 #include "chrome/browser/chrome_browser_main_extra_parts.h"
  47 #include "chrome/browser/component_updater/cld_component_installer.h"
  48 #include "chrome/browser/component_updater/ev_whitelist_component_installer.h"
  49 #include "chrome/browser/component_updater/flash_component_installer.h"
  50 #include "chrome/browser/component_updater/recovery_component_installer.h"
  51 #include "chrome/browser/component_updater/supervised_user_whitelist_installer.h"
  52 #include "chrome/browser/component_updater/swiftshader_component_installer.h"
  53 #include "chrome/browser/component_updater/widevine_cdm_component_installer.h"
  54 #include "chrome/browser/defaults.h"
  55 #include "chrome/browser/first_run/first_run.h"
  56 #include "chrome/browser/first_run/upgrade_util.h"
  57 #include "chrome/browser/google/google_search_counter.h"
  58 #include "chrome/browser/gpu/gl_string_manager.h"
  59 #include "chrome/browser/gpu/three_d_api_observer.h"
  60 #include "chrome/browser/media/media_capture_devices_dispatcher.h"
  61 #include "chrome/browser/metrics/field_trial_synchronizer.h"
  62 #include "chrome/browser/metrics/metrics_services_manager.h"
  63 #include "chrome/browser/metrics/thread_watcher.h"
  64 #include "chrome/browser/metrics/variations/variations_service.h"
  65 #include "chrome/browser/nacl_host/nacl_browser_delegate_impl.h"
  66 #include "chrome/browser/net/chrome_net_log.h"
  67 #include "chrome/browser/net/crl_set_fetcher.h"
  68 #include "chrome/browser/notifications/desktop_notification_service.h"
  69 #include "chrome/browser/notifications/desktop_notification_service_factory.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/pref_metrics_service.h"
  77 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
  78 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
  79 #include "chrome/browser/process_singleton.h"
  80 #include "chrome/browser/profiles/profile.h"
  81 #include "chrome/browser/profiles/profile_manager.h"
  82 #include "chrome/browser/profiles/profiles_state.h"
  83 #include "chrome/browser/shell_integration.h"
  84 #include "chrome/browser/translate/translate_service.h"
  85 #include "chrome/browser/ui/app_list/app_list_service.h"
  86 #include "chrome/browser/ui/browser.h"
  87 #include "chrome/browser/ui/browser_finder.h"
  88 #include "chrome/browser/ui/host_desktop.h"
  89 #include "chrome/browser/ui/startup/bad_flags_prompt.h"
  90 #include "chrome/browser/ui/startup/default_browser_prompt.h"
  91 #include "chrome/browser/ui/startup/startup_browser_creator.h"
  92 #include "chrome/browser/ui/uma_browsing_activity_observer.h"
  93 #include "chrome/browser/ui/webui/chrome_web_ui_controller_factory.h"
  94 #include "chrome/common/chrome_constants.h"
  95 #include "chrome/common/chrome_paths.h"
  96 #include "chrome/common/chrome_result_codes.h"
  97 #include "chrome/common/chrome_switches.h"
  98 #include "chrome/common/chrome_version_info.h"
  99 #include "chrome/common/crash_keys.h"
 100 #include "chrome/common/env_vars.h"
 101 #include "chrome/common/logging_chrome.h"
 102 #include "chrome/common/net/net_resource_provider.h"
 103 #include "chrome/common/pref_names.h"
 104 #include "chrome/common/profiling.h"
 105 #include "chrome/grit/generated_resources.h"
 106 #include "chrome/installer/util/google_update_settings.h"
 107 #include "components/component_updater/component_updater_service.h"
 108 #include "components/device_event_log/device_event_log.h"
 109 #include "components/google/core/browser/google_util.h"
 110 #include "components/language_usage_metrics/language_usage_metrics.h"
 111 #include "components/metrics/metrics_service.h"
 112 #include "components/metrics/profiler/tracking_synchronizer.h"
 113 #include "components/nacl/browser/nacl_browser.h"
 114 #include "components/rappor/rappor_service.h"
 115 #include "components/signin/core/common/profile_management_switches.h"
 116 #include "components/startup_metric_utils/startup_metric_utils.h"
 117 #include "components/translate/content/browser/browser_cld_utils.h"
 118 #include "components/translate/content/common/cld_data_source.h"
 119 #include "components/translate/core/browser/translate_download_manager.h"
 120 #include "components/variations/net/variations_http_header_provider.h"
 121 #include "content/public/browser/browser_thread.h"
 122 #include "content/public/browser/notification_observer.h"
 123 #include "content/public/browser/notification_registrar.h"
 124 #include "content/public/browser/notification_service.h"
 125 #include "content/public/browser/notification_types.h"
 126 #include "content/public/browser/power_usage_monitor.h"
 127 #include "content/public/browser/site_instance.h"
 128 #include "content/public/common/content_client.h"
 129 #include "content/public/common/content_switches.h"
 130 #include "content/public/common/main_function_params.h"
 131 #include "grit/platform_locale_settings.h"
 132 #include "net/base/net_module.h"
 133 #include "net/base/sdch_manager.h"
 134 #include "net/cookies/cookie_monster.h"
 135 #include "net/http/http_network_layer.h"
 136 #include "net/http/http_stream_factory.h"
 137 #include "net/url_request/url_request.h"
 138 #include "ui/base/l10n/l10n_util.h"
 139 #include "ui/base/layout.h"
 140 #include "ui/base/resource/resource_bundle.h"
 141 #include "ui/strings/grit/app_locale_settings.h"
 142
 143 #if defined(OS_ANDROID)
 144 #include "chrome/browser/metrics/thread_watcher_android.h"
 145 #else
 146 #include "chrome/browser/feedback/feedback_profile_observer.h"
 147 #endif
 148
 149 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
 150 #include "chrome/browser/first_run/upgrade_util_linux.h"
 151 #include "chrome/browser/sxs_linux.h"
 152 #endif
 153
 154 #if defined(OS_CHROMEOS)
 155 #include "chrome/browser/chromeos/settings/cros_settings.h"
 156 #include "chromeos/chromeos_switches.h"
 157 #include "chromeos/settings/cros_settings_names.h"
 158 #endif
 159
 160 // TODO(port): several win-only methods have been pulled out of this, but
 161 // BrowserMain() as a whole needs to be broken apart so that it's usable by
 162 // other platforms. For now, it's just a stub. This is a serious work in
 163 // progress and should not be taken as an indication of a real refactoring.
 164
 165 #if defined(OS_WIN)
 166 #include "base/environment.h"  // For PreRead experiment.
 167 #include "base/win/windows_version.h"
 168 #include "chrome/browser/browser_util_win.h"
 169 #include "chrome/browser/chrome_browser_main_win.h"
 170 #include "chrome/browser/chrome_select_file_dialog_factory_win.h"
 171 #include "chrome/browser/component_updater/caps_installer_win.h"
 172 #include "chrome/browser/component_updater/sw_reporter_installer_win.h"
 173 #include "chrome/browser/first_run/try_chrome_dialog_view.h"
 174 #include "chrome/browser/first_run/upgrade_util_win.h"
 175 #include "chrome/browser/ui/network_profile_bubble.h"
 176 #include "chrome/installer/util/helper.h"
 177 #include "chrome/installer/util/install_util.h"
 178 #include "chrome/installer/util/shell_util.h"
 179 #include "net/base/net_util.h"
 180 #include "ui/base/l10n/l10n_util_win.h"
 181 #include "ui/gfx/win/dpi.h"
 182 #include "ui/shell_dialogs/select_file_dialog.h"
 183 #endif  // defined(OS_WIN)
 184
 185 #if defined(OS_MACOSX)
 186 #include <Security/Security.h>
 187
 188 #include "base/mac/scoped_nsautorelease_pool.h"
 189 #include "chrome/browser/mac/keystone_glue.h"
 190 #endif
 191
 192 #if !defined(OS_IOS)
 193 #include "chrome/browser/ui/app_modal/chrome_javascript_native_dialog_factory.h"
 194 #endif
 195
 196 #if !defined(DISABLE_NACL)
 197 #include "chrome/browser/component_updater/pnacl/pnacl_component_installer.h"
 198 #include "components/nacl/browser/nacl_process_host.h"
 199 #endif
 200
 201 #if defined(ENABLE_EXTENSIONS)
 202 #include "chrome/browser/extensions/startup_helper.h"
 203 #include "extensions/browser/extension_protocols.h"
 204 #include "extensions/components/javascript_dialog_extensions_client/javascript_dialog_extension_client_impl.h"
 205 #endif
 206
 207 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
 208 #include "printing/printed_document.h"
 209 #endif
 210
 211 #if defined(ENABLE_RLZ)
 212 #include "chrome/browser/rlz/rlz.h"
 213 #endif
 214
 215 #if defined(ENABLE_WEBRTC)
 216 #include "chrome/browser/media/webrtc_log_util.h"
 217 #endif
 218
 219 #if defined(USE_AURA)
 220 #include "ui/aura/env.h"
 221 #endif
 222
 223 using content::BrowserThread;
 224
 225 namespace {
 226
 227 // This function provides some ways to test crash and assertion handling
 228 // behavior of the program.
 229 void HandleTestParameters(const base::CommandLine& command_line) {
 230   // This parameter causes a null pointer crash (crash reporter trigger).
 231   if (command_line.HasSwitch(switches::kBrowserCrashTest)) {
 232     int* bad_pointer = NULL;
 233     *bad_pointer = 0;
 234   }
 235 }
 236
 237 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 238 void AddFirstRunNewTabs(StartupBrowserCreator* browser_creator,
 239                         const std::vector<GURL>& new_tabs) {
 240   for (std::vector<GURL>::const_iterator it = new_tabs.begin();
 241        it != new_tabs.end(); ++it) {
 242     if (it->is_valid())
 243       browser_creator->AddFirstRunTab(*it);
 244   }
 245 }
 246 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 247
 248 // Returns the new local state object, guaranteed non-NULL.
 249 // |local_state_task_runner| must be a shutdown-blocking task runner.
 250 PrefService* InitializeLocalState(
 251     base::SequencedTaskRunner* local_state_task_runner,
 252     const base::CommandLine& parsed_command_line) {
 253   TRACE_EVENT0("startup", "ChromeBrowserMainParts::InitializeLocalState")
 254
 255   // Load local state.  This includes the application locale so we know which
 256   // locale dll to load.  This also causes local state prefs to be registered.
 257   PrefService* local_state = g_browser_process->local_state();
 258   DCHECK(local_state);
 259
 260 #if defined(OS_WIN)
 261   if (first_run::IsChromeFirstRun()) {
 262     // During first run we read the google_update registry key to find what
 263     // language the user selected when downloading the installer. This
 264     // becomes our default language in the prefs.
 265     // Other platforms obey the system locale.
 266     base::string16 install_lang;
 267     if (GoogleUpdateSettings::GetLanguage(&install_lang)) {
 268       local_state->SetString(prefs::kApplicationLocale,
 269                              base::UTF16ToASCII(install_lang));
 270     }
 271   }
 272 #endif  // defined(OS_WIN)
 273
 274   // If the local state file for the current profile doesn't exist and the
 275   // parent profile command line flag is present, then we should inherit some
 276   // local state from the parent profile.
 277   // Checking that the local state file for the current profile doesn't exist
 278   // is the most robust way to determine whether we need to inherit or not
 279   // since the parent profile command line flag can be present even when the
 280   // current profile is not a new one, and in that case we do not want to
 281   // inherit and reset the user's setting.
 282   //
 283   // TODO(mnissler): We should probably just instantiate a
 284   // JSONPrefStore here instead of an entire PrefService. Once this is
 285   // addressed, the call to browser_prefs::RegisterLocalState can move
 286   // to chrome_prefs::CreateLocalState.
 287   if (parsed_command_line.HasSwitch(switches::kParentProfile)) {
 288     base::FilePath local_state_path;
 289     PathService::Get(chrome::FILE_LOCAL_STATE, &local_state_path);
 290     bool local_state_file_exists = base::PathExists(local_state_path);
 291     if (!local_state_file_exists) {
 292       base::FilePath parent_profile =
 293           parsed_command_line.GetSwitchValuePath(switches::kParentProfile);
 294       scoped_refptr<PrefRegistrySimple> registry = new PrefRegistrySimple();
 295       scoped_ptr<PrefService> parent_local_state(
 296           chrome_prefs::CreateLocalState(
 297               parent_profile,
 298               local_state_task_runner,
 299               g_browser_process->policy_service(),
 300               registry,
 301               false));
 302       registry->RegisterStringPref(prefs::kApplicationLocale, std::string());
 303       // Right now, we only inherit the locale setting from the parent profile.
 304       local_state->SetString(
 305           prefs::kApplicationLocale,
 306           parent_local_state->GetString(prefs::kApplicationLocale));
 307     }
 308   }
 309
 310 #if defined(OS_CHROMEOS)
 311   if (parsed_command_line.HasSwitch(chromeos::switches::kLoginManager)) {
 312     std::string owner_locale = local_state->GetString(prefs::kOwnerLocale);
 313     // Ensure that we start with owner's locale.
 314     if (!owner_locale.empty() &&
 315         local_state->GetString(prefs::kApplicationLocale) != owner_locale &&
 316         !local_state->IsManagedPreference(prefs::kApplicationLocale)) {
 317       local_state->SetString(prefs::kApplicationLocale, owner_locale);
 318     }
 319   }
 320 #endif
 321
 322   return local_state;
 323 }
 324
 325 // Initializes the primary profile, possibly doing some user prompting to pick
 326 // a fallback profile. Returns the newly created profile, or NULL if startup
 327 // should not continue.
 328 Profile* CreatePrimaryProfile(const content::MainFunctionParams& parameters,
 329                               const base::FilePath& user_data_dir,
 330                               const base::CommandLine& parsed_command_line) {
 331   TRACE_EVENT0("startup", "ChromeBrowserMainParts::CreateProfile")
 332   base::Time start = base::Time::Now();
 333   if (profiles::IsMultipleProfilesEnabled() &&
 334       parsed_command_line.HasSwitch(switches::kProfileDirectory)) {
 335     g_browser_process->local_state()->SetString(prefs::kProfileLastUsed,
 336         parsed_command_line.GetSwitchValueASCII(switches::kProfileDirectory));
 337     // Clear kProfilesLastActive since the user only wants to launch a specific
 338     // profile.
 339     ListPrefUpdate update(g_browser_process->local_state(),
 340                           prefs::kProfilesLastActive);
 341     base::ListValue* profile_list = update.Get();
 342     profile_list->Clear();
 343   }
 344
 345   Profile* profile = NULL;
 346 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
 347   // On ChromeOS and Android the ProfileManager will use the same path as the
 348   // one we got passed. GetActiveUserProfile will therefore use the correct path
 349   // automatically.
 350   DCHECK_EQ(user_data_dir.value(),
 351             g_browser_process->profile_manager()->user_data_dir().value());
 352   profile = ProfileManager::GetActiveUserProfile();
 353 #else
 354   base::FilePath profile_path =
 355       GetStartupProfilePath(user_data_dir, parsed_command_line);
 356
 357   // Without NewAvatarMenu, replace guest with any existing profile.
 358   if (!switches::IsNewAvatarMenu() &&
 359       profile_path == ProfileManager::GetGuestProfilePath()) {
 360     profile_path = g_browser_process->profile_manager()->GetProfileInfoCache().
 361         GetPathOfProfileAtIndex(0);
 362   }
 363   profile = g_browser_process->profile_manager()->GetProfile(
 364       profile_path);
 365
 366   // If we're using the --new-profile-management flag and this profile is
 367   // signed out, then we should show the user manager instead. By switching
 368   // the active profile to the guest profile we ensure that no
 369   // browser windows will be opened for the guest profile.
 370   if (switches::IsNewProfileManagement() &&
 371       profile &&
 372       !profile->IsGuestSession()) {
 373     ProfileInfoCache& cache =
 374         g_browser_process->profile_manager()->GetProfileInfoCache();
 375     size_t profile_index = cache.GetIndexOfProfileWithPath(profile_path);
 376
 377     if (cache.ProfileIsSigninRequiredAtIndex(profile_index))
 378       profile = g_browser_process->profile_manager()->GetProfile(
 379           ProfileManager::GetGuestProfilePath());
 380   }
 381 #endif
 382   if (profile) {
 383     UMA_HISTOGRAM_LONG_TIMES(
 384         "Startup.CreateFirstProfile", base::Time::Now() - start);
 385     return profile;
 386   }
 387
 388 #if !defined(OS_WIN)
 389   // TODO(port): fix this.  See comments near the definition of
 390   // user_data_dir.  It is better to CHECK-fail here than it is to
 391   // silently exit because of missing code in the above test.
 392   CHECK(profile) << "Cannot get default profile.";
 393 #endif
 394
 395   return NULL;
 396 }
 397
 398 #if defined(OS_MACOSX)
 399 OSStatus KeychainCallback(SecKeychainEvent keychain_event,
 400                           SecKeychainCallbackInfo* info, void* context) {
 401   return noErr;
 402 }
 403 #endif
 404
 405 void RegisterComponentsForUpdate() {
 406   component_updater::ComponentUpdateService* cus =
 407       g_browser_process->component_updater();
 408
 409   // Registration can be before or after cus->Start() so it is ok to post
 410   // a task to the UI thread to do registration once you done the necessary
 411   // file IO to know you existing component version.
 412 #if !defined(OS_CHROMEOS) && !defined(OS_ANDROID)
 413   RegisterRecoveryComponent(cus, g_browser_process->local_state());
 414   RegisterPepperFlashComponent(cus);
 415   RegisterSwiftShaderComponent(cus);
 416   RegisterWidevineCdmComponent(cus);
 417 #endif
 418
 419 #if !defined(DISABLE_NACL) && !defined(OS_ANDROID)
 420 #if defined(OS_CHROMEOS)
 421   // PNaCl on Chrome OS is on rootfs and there is no need to download it. But
 422   // Chrome4ChromeOS on Linux doesn't contain PNaCl so enable component
 423   // installer when running on Linux. See crbug.com/422121 for more details.
 424   if (!base::SysInfo::IsRunningOnChromeOS())
 425 #endif
 426     g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(cus);
 427 #endif
 428
 429   // Registration of the CLD Component is a no-op unless the CLD data source has
 430   // been configured to be the "Component" data source.
 431   RegisterCldComponent(cus);
 432
 433   component_updater::SupervisedUserWhitelistInstaller* whitelist_installer =
 434       g_browser_process->supervised_user_whitelist_installer();
 435   whitelist_installer->RegisterComponents();
 436
 437   base::FilePath path;
 438   if (PathService::Get(chrome::DIR_USER_DATA, &path)) {
 439 #if defined(OS_ANDROID)
 440     // The CRLSet component was enabled for some releases. This code attempts to
 441     // delete it from the local disk of those how may have downloaded it.
 442     g_browser_process->crl_set_fetcher()->DeleteFromDisk(path);
 443 #elif !defined(OS_CHROMEOS)
 444     // CRLSetFetcher attempts to load a CRL set from either the local disk or
 445     // network.
 446     // For Chrome OS this registration is delayed until user login.
 447     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus, path);
 448     // Registration of the EV Whitelist component here is not necessary for:
 449     // 1. Android: Because it currently does not have the EV indicator.
 450     // 2. Chrome OS: On Chrome OS this registration is delayed until user login.
 451     RegisterEVWhitelistComponent(cus, path);
 452 #endif
 453   }
 454
 455 #if defined(OS_WIN)
 456   RegisterSwReporterComponent(cus, g_browser_process->local_state());
 457   RegisterCAPSComponent(cus);
 458 #endif
 459
 460   cus->Start();
 461 }
 462
 463 #if !defined(OS_ANDROID)
 464 bool ProcessSingletonNotificationCallback(
 465     const base::CommandLine& command_line,
 466     const base::FilePath& current_directory) {
 467   // Drop the request if the browser process is already in shutdown path.
 468   if (!g_browser_process || g_browser_process->IsShuttingDown())
 469     return false;
 470
 471   if (command_line.HasSwitch(switches::kOriginalProcessStartTime)) {
 472     std::string start_time_string =
 473         command_line.GetSwitchValueASCII(switches::kOriginalProcessStartTime);
 474     int64 remote_start_time;
 475     if (base::StringToInt64(start_time_string, &remote_start_time)) {
 476       base::TimeDelta elapsed =
 477           base::Time::Now() - base::Time::FromInternalValue(remote_start_time);
 478       if (command_line.HasSwitch(switches::kFastStart)) {
 479         UMA_HISTOGRAM_LONG_TIMES(
 480             "Startup.WarmStartTimeFromRemoteProcessStartFast", elapsed);
 481       } else {
 482         UMA_HISTOGRAM_LONG_TIMES(
 483             "Startup.WarmStartTimeFromRemoteProcessStart", elapsed);
 484       }
 485     }
 486   }
 487
 488   g_browser_process->platform_part()->PlatformSpecificCommandLineProcessing(
 489       command_line);
 490
 491   base::FilePath user_data_dir =
 492       g_browser_process->profile_manager()->user_data_dir();
 493   base::FilePath startup_profile_dir =
 494       GetStartupProfilePath(user_data_dir, command_line);
 495
 496   StartupBrowserCreator::ProcessCommandLineAlreadyRunning(
 497       command_line, current_directory, startup_profile_dir);
 498   return true;
 499 }
 500 #endif  // !defined(OS_ANDROID)
 501
 502 void LaunchDevToolsHandlerIfNeeded(const base::CommandLine& command_line) {
 503   if (command_line.HasSwitch(::switches::kRemoteDebuggingPort)) {
 504     std::string port_str =
 505         command_line.GetSwitchValueASCII(::switches::kRemoteDebuggingPort);
 506     int port;
 507     if (base::StringToInt(port_str, &port) && port >= 0 && port < 65535) {
 508       g_browser_process->CreateDevToolsHttpProtocolHandler(
 509           chrome::HOST_DESKTOP_TYPE_NATIVE,
 510           "127.0.0.1",
 511           static_cast<uint16>(port));
 512     } else {
 513       DLOG(WARNING) << "Invalid http debugger port number " << port;
 514     }
 515   }
 516 }
 517
 518 // Heap allocated class that listens for first page load, kicks off stat
 519 // recording and then deletes itself.
 520 class LoadCompleteListener : public content::NotificationObserver {
 521  public:
 522   LoadCompleteListener() {
 523     registrar_.Add(this,
 524                    content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
 525                    content::NotificationService::AllSources());
 526   }
 527   ~LoadCompleteListener() override {}
 528
 529   // content::NotificationObserver implementation.
 530   void Observe(int type,
 531                const content::NotificationSource& source,
 532                const content::NotificationDetails& details) override {
 533     DCHECK_EQ(content::NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME, type);
 534     startup_metric_utils::OnInitialPageLoadComplete();
 535     delete this;
 536   }
 537
 538  private:
 539   content::NotificationRegistrar registrar_;
 540   DISALLOW_COPY_AND_ASSIGN(LoadCompleteListener);
 541 };
 542
 543 }  // namespace
 544
 545 namespace chrome_browser {
 546
 547 // This error message is not localized because we failed to load the
 548 // localization data files.
 549 #if defined(OS_WIN)
 550 const char kMissingLocaleDataTitle[] = "Missing File Error";
 551 #endif
 552
 553 #if defined(OS_WIN)
 554 // TODO(port) This should be used on Linux Aura as well. http://crbug.com/338969
 555 const char kMissingLocaleDataMessage[] =
 556     "Unable to find locale data files. Please reinstall.";
 557 #endif
 558
 559 }  // namespace chrome_browser
 560
 561 // BrowserMainParts ------------------------------------------------------------
 562
 563 ChromeBrowserMainParts::ChromeBrowserMainParts(
 564     const content::MainFunctionParams& parameters)
 565     : parameters_(parameters),
 566       parsed_command_line_(parameters.command_line),
 567       result_code_(content::RESULT_CODE_NORMAL_EXIT),
 568       startup_watcher_(new StartupTimeBomb()),
 569       shutdown_watcher_(new ShutdownWatcherHelper()),
 570       browser_field_trials_(parameters.command_line),
 571       profile_(NULL),
 572       run_message_loop_(true),
 573       notify_result_(ProcessSingleton::PROCESS_NONE),
 574       local_state_(NULL),
 575       restart_last_session_(false) {
 576   // If we're running tests (ui_task is non-null).
 577   if (parameters.ui_task)
 578     browser_defaults::enable_help_app = false;
 579
 580   // Chrome disallows cookies by default. All code paths that want to use
 581   // cookies need to go through one of Chrome's URLRequestContexts which have
 582   // a ChromeNetworkDelegate attached that selectively allows cookies again.
 583   net::URLRequest::SetDefaultCookiePolicyToBlock();
 584 }
 585
 586 ChromeBrowserMainParts::~ChromeBrowserMainParts() {
 587   for (int i = static_cast<int>(chrome_extra_parts_.size())-1; i >= 0; --i)
 588     delete chrome_extra_parts_[i];
 589   chrome_extra_parts_.clear();
 590 }
 591
 592 // This will be called after the command-line has been mutated by about:flags
 593 void ChromeBrowserMainParts::SetupMetricsAndFieldTrials() {
 594   TRACE_EVENT0("startup", "ChromeBrowserMainParts::SetupMetricsAndFieldTrials");
 595   // Must initialize metrics after labs have been converted into switches,
 596   // but before field trials are set up (so that client ID is available for
 597   // one-time randomized field trials).
 598
 599   // Initialize FieldTrialList to support FieldTrials that use one-time
 600   // randomization.
 601   metrics::MetricsService* metrics = browser_process_->metrics_service();
 602   field_trial_list_.reset(
 603       new base::FieldTrialList(metrics->CreateEntropyProvider().release()));
 604
 605   const base::CommandLine* command_line =
 606       base::CommandLine::ForCurrentProcess();
 607   if (command_line->HasSwitch(switches::kEnableBenchmarking) ||
 608       command_line->HasSwitch(cc::switches::kEnableGpuBenchmarking)) {
 609     base::FieldTrial::EnableBenchmarking();
 610   }
 611
 612   // Ensure any field trials specified on the command line are initialized.
 613   if (command_line->HasSwitch(switches::kForceFieldTrials)) {
 614     std::set<std::string> unforceable_field_trials;
 615 #if defined(OFFICIAL_BUILD)
 616     unforceable_field_trials.insert("SettingsEnforcement");
 617 #endif  // defined(OFFICIAL_BUILD)
 618
 619     // Create field trials without activating them, so that this behaves in a
 620     // consistent manner with field trials created from the server.
 621     bool result = base::FieldTrialList::CreateTrialsFromString(
 622         command_line->GetSwitchValueASCII(switches::kForceFieldTrials),
 623         base::FieldTrialList::DONT_ACTIVATE_TRIALS,
 624         unforceable_field_trials);
 625     CHECK(result) << "Invalid --" << switches::kForceFieldTrials
 626                   << " list specified.";
 627   }
 628   if (command_line->HasSwitch(switches::kForceVariationIds)) {
 629     // Create default variation ids which will always be included in the
 630     // X-Client-Data request header.
 631     variations::VariationsHttpHeaderProvider* provider =
 632         variations::VariationsHttpHeaderProvider::GetInstance();
 633     bool result = provider->SetDefaultVariationIds(
 634         command_line->GetSwitchValueASCII(switches::kForceVariationIds));
 635     CHECK(result) << "Invalid --" << switches::kForceVariationIds
 636                   << " list specified.";
 637     metrics->AddSyntheticTrialObserver(provider);
 638   }
 639   chrome_variations::VariationsService* variations_service =
 640       browser_process_->variations_service();
 641   if (variations_service)
 642     variations_service->CreateTrialsFromSeed();
 643
 644   // This must be called after |local_state_| is initialized.
 645   browser_field_trials_.SetupFieldTrials(
 646       base::Time::FromTimeT(metrics->GetInstallDate()), local_state_);
 647
 648   // Initialize FieldTrialSynchronizer system. This is a singleton and is used
 649   // for posting tasks via base::Bind. Its deleted when it goes out of scope.
 650   // Even though base::Bind does AddRef and Release, the object will not be
 651   // deleted after the Task is executed.
 652   field_trial_synchronizer_ = new FieldTrialSynchronizer();
 653
 654   // Now that field trials have been created, initializes metrics recording.
 655   metrics->InitializeMetricsRecordingState();
 656
 657   // Enable profiler instrumentation depending on the channel.
 658   switch (chrome::VersionInfo::GetChannel()) {
 659     case chrome::VersionInfo::CHANNEL_UNKNOWN:
 660     case chrome::VersionInfo::CHANNEL_CANARY:
 661       tracked_objects::ScopedTracker::Enable();
 662       break;
 663
 664     case chrome::VersionInfo::CHANNEL_DEV:
 665     case chrome::VersionInfo::CHANNEL_BETA:
 666     case chrome::VersionInfo::CHANNEL_STABLE:
 667       // Don't enable instrumentation.
 668       break;
 669   }
 670 }
 671
 672 // ChromeBrowserMainParts: |SetupMetricsAndFieldTrials()| related --------------
 673
 674 void ChromeBrowserMainParts::StartMetricsRecording() {
 675   TRACE_EVENT0("startup", "ChromeBrowserMainParts::StartMetricsRecording");
 676
 677   g_browser_process->metrics_service()->CheckForClonedInstall(
 678       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE));
 679
 680   g_browser_process->GetMetricsServicesManager()->UpdateUploadPermissions(true);
 681 }
 682
 683 void ChromeBrowserMainParts::RecordBrowserStartupTime() {
 684   // Don't record any metrics if UI was displayed before this point e.g.
 685   // warning dialogs.
 686   if (startup_metric_utils::WasNonBrowserUIDisplayed())
 687     return;
 688
 689 #if defined(OS_ANDROID)
 690   // On Android the first run is handled in Java code, and the C++ side of
 691   // Chrome doesn't know if this is the first run. This will cause some
 692   // inaccuracy in the UMA statistics, but this should be minor (first runs are
 693   // rare).
 694   bool is_first_run = false;
 695 #else
 696   bool is_first_run = first_run::IsChromeFirstRun();
 697 #endif
 698
 699 // CurrentProcessInfo::CreationTime() is currently only implemented on some
 700 // platforms.
 701 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 702   const base::Time process_creation_time =
 703       base::CurrentProcessInfo::CreationTime();
 704
 705   if (!is_first_run && !process_creation_time.is_null()) {
 706     base::TimeDelta delay = base::Time::Now() - process_creation_time;
 707     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserMessageLoopStartTime", delay);
 708   }
 709 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
 710
 711   // Record collected startup metrics.
 712   startup_metric_utils::OnBrowserStartupComplete(is_first_run);
 713
 714   // Deletes self.
 715   new LoadCompleteListener();
 716 }
 717
 718 // -----------------------------------------------------------------------------
 719 // TODO(viettrungluu): move more/rest of BrowserMain() into BrowserMainParts.
 720
 721 #if defined(OS_WIN)
 722 #define DLLEXPORT __declspec(dllexport)
 723
 724 // We use extern C for the prototype DLLEXPORT to avoid C++ name mangling.
 725 extern "C" {
 726 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 727 }
 728
 729 DLLEXPORT void __cdecl RelaunchChromeBrowserWithNewCommandLineIfNeeded() {
 730   // Need an instance of AtExitManager to handle singleton creations and
 731   // deletions.  We need this new instance because, the old instance created
 732   // in ChromeMain() got destructed when the function returned.
 733   base::AtExitManager exit_manager;
 734   upgrade_util::RelaunchChromeBrowserWithNewCommandLineIfNeeded();
 735 }
 736 #endif
 737
 738 // content::BrowserMainParts implementation ------------------------------------
 739
 740 void ChromeBrowserMainParts::PreEarlyInitialization() {
 741   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreEarlyInitialization");
 742   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 743     chrome_extra_parts_[i]->PreEarlyInitialization();
 744 }
 745
 746 void ChromeBrowserMainParts::PostEarlyInitialization() {
 747   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostEarlyInitialization");
 748   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 749     chrome_extra_parts_[i]->PostEarlyInitialization();
 750 }
 751
 752 void ChromeBrowserMainParts::ToolkitInitialized() {
 753   TRACE_EVENT0("startup", "ChromeBrowserMainParts::ToolkitInitialized");
 754   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 755     chrome_extra_parts_[i]->ToolkitInitialized();
 756 }
 757
 758 void ChromeBrowserMainParts::PreMainMessageLoopStart() {
 759   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopStart");
 760
 761   device_event_log::Initialize(0 /* default max entries */);
 762
 763   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 764     chrome_extra_parts_[i]->PreMainMessageLoopStart();
 765 }
 766
 767 void ChromeBrowserMainParts::PostMainMessageLoopStart() {
 768   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopStart");
 769   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 770     chrome_extra_parts_[i]->PostMainMessageLoopStart();
 771 }
 772
 773 int ChromeBrowserMainParts::PreCreateThreads() {
 774   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreads");
 775   result_code_ = PreCreateThreadsImpl();
 776
 777   if (result_code_ == content::RESULT_CODE_NORMAL_EXIT) {
 778 #if !defined(OS_ANDROID)
 779     // These members must be initialized before exiting this function normally.
 780     DCHECK(master_prefs_.get());
 781     DCHECK(browser_creator_.get());
 782 #endif
 783     for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
 784       chrome_extra_parts_[i]->PreCreateThreads();
 785   }
 786
 787   return result_code_;
 788 }
 789
 790 int ChromeBrowserMainParts::PreCreateThreadsImpl() {
 791   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreCreateThreadsImpl")
 792   run_message_loop_ = false;
 793 #if !defined(OS_ANDROID)
 794   chrome::MaybeShowInvalidUserDataDirWarningDialog();
 795 #endif
 796   if (!PathService::Get(chrome::DIR_USER_DATA, &user_data_dir_))
 797     return chrome::RESULT_CODE_MISSING_DATA;
 798
 799   // Force MediaCaptureDevicesDispatcher to be created on UI thread.
 800   MediaCaptureDevicesDispatcher::GetInstance();
 801
 802   // Android's first run is done in Java instead of native.
 803 #if !defined(OS_ANDROID)
 804   process_singleton_.reset(new ChromeProcessSingleton(
 805       user_data_dir_, base::Bind(&ProcessSingletonNotificationCallback)));
 806
 807   // Cache first run state early.
 808   first_run::IsChromeFirstRun();
 809 #endif
 810
 811   scoped_refptr<base::SequencedTaskRunner> local_state_task_runner =
 812       JsonPrefStore::GetTaskRunnerForFile(
 813           base::FilePath(chrome::kLocalStorePoolName),
 814           BrowserThread::GetBlockingPool());
 815
 816   {
 817     TRACE_EVENT0("startup",
 818       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitBrowswerProcessImpl");
 819     browser_process_.reset(new BrowserProcessImpl(local_state_task_runner.get(),
 820                                                   parsed_command_line()));
 821   }
 822
 823   if (parsed_command_line().HasSwitch(switches::kEnableProfiling)) {
 824     TRACE_EVENT0("startup",
 825         "ChromeBrowserMainParts::PreCreateThreadsImpl:InitProfiling");
 826     // User wants to override default tracking status.
 827     std::string flag =
 828       parsed_command_line().GetSwitchValueASCII(switches::kEnableProfiling);
 829     // Default to basic profiling (no parent child support).
 830     tracked_objects::ThreadData::Status status =
 831           tracked_objects::ThreadData::PROFILING_ACTIVE;
 832     if (flag.compare("0") != 0)
 833       status = tracked_objects::ThreadData::DEACTIVATED;
 834     else if (flag.compare("child") != 0)
 835       status = tracked_objects::ThreadData::PROFILING_CHILDREN_ACTIVE;
 836     tracked_objects::ThreadData::InitializeAndSetTrackingStatus(status);
 837   }
 838
 839   if (parsed_command_line().HasSwitch(switches::kProfilingOutputFile)) {
 840     tracking_objects_.set_output_file_path(
 841         parsed_command_line().GetSwitchValuePath(
 842             switches::kProfilingOutputFile));
 843   }
 844
 845   local_state_ = InitializeLocalState(
 846       local_state_task_runner.get(), parsed_command_line());
 847
 848 #if !defined(OS_ANDROID)
 849   // These members must be initialized before returning from this function.
 850   master_prefs_.reset(new first_run::MasterPrefs);
 851   // Android doesn't use StartupBrowserCreator.
 852   browser_creator_.reset(new StartupBrowserCreator);
 853   // TODO(yfriedman): Refactor Android to re-use UMABrowsingActivityObserver
 854   chrome::UMABrowsingActivityObserver::Init();
 855 #endif
 856
 857 #if !defined(OS_CHROMEOS)
 858   // Convert active labs into switches. This needs to be done before
 859   // ResourceBundle::InitSharedInstanceWithLocale as some loaded resources are
 860   // affected by experiment flags (--touch-optimized-ui in particular).
 861   // On ChromeOS system level flags are applied from the device settings from
 862   // the session manager.
 863   {
 864     TRACE_EVENT0("startup",
 865         "ChromeBrowserMainParts::PreCreateThreadsImpl:ConvertFlags");
 866     about_flags::PrefServiceFlagsStorage flags_storage_(
 867         g_browser_process->local_state());
 868     about_flags::ConvertFlagsToSwitches(&flags_storage_,
 869                                         base::CommandLine::ForCurrentProcess(),
 870                                         about_flags::kAddSentinels);
 871   }
 872 #endif
 873
 874   local_state_->UpdateCommandLinePrefStore(
 875       new CommandLinePrefStore(base::CommandLine::ForCurrentProcess()));
 876
 877   // Reset the command line in the crash report details, since we may have
 878   // just changed it to include experiments.
 879   crash_keys::SetSwitchesFromCommandLine(
 880       base::CommandLine::ForCurrentProcess());
 881
 882   // Mac starts it earlier in |PreMainMessageLoopStart()| (because it is
 883   // needed when loading the MainMenu.nib and the language doesn't depend on
 884   // anything since it comes from Cocoa.
 885 #if defined(OS_MACOSX)
 886   std::string locale =
 887       parameters().ui_task ? "en-US" : l10n_util::GetLocaleOverride();
 888   browser_process_->SetApplicationLocale(locale);
 889 #else
 890   const std::string locale =
 891       local_state_->GetString(prefs::kApplicationLocale);
 892
 893   // On a POSIX OS other than ChromeOS, the parameter that is passed to the
 894   // method InitSharedInstance is ignored.
 895
 896   TRACE_EVENT_BEGIN0("startup",
 897       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 898   const std::string loaded_locale =
 899       ui::ResourceBundle::InitSharedInstanceWithLocale(
 900           locale, NULL, ui::ResourceBundle::LOAD_COMMON_RESOURCES);
 901   TRACE_EVENT_END0("startup",
 902       "ChromeBrowserMainParts::PreCreateThreadsImpl:InitResourceBundle");
 903
 904   if (loaded_locale.empty() &&
 905       !parsed_command_line().HasSwitch(switches::kNoErrorDialogs)) {
 906     ShowMissingLocaleMessageBox();
 907     return chrome::RESULT_CODE_MISSING_DATA;
 908   }
 909   CHECK(!loaded_locale.empty()) << "Locale could not be found for " << locale;
 910   browser_process_->SetApplicationLocale(loaded_locale);
 911
 912   base::FilePath resources_pack_path;
 913   PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
 914   {
 915     TRACE_EVENT0("startup",
 916         "ChromeBrowserMainParts::PreCreateThreadsImpl:AddDataPack");
 917     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
 918         resources_pack_path, ui::SCALE_FACTOR_NONE);
 919   }
 920 #endif  // defined(OS_MACOSX)
 921
 922   // Android does first run in Java instead of native.
 923   // Chrome OS has its own out-of-box-experience code.
 924 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
 925   // On first run, we need to process the predictor preferences before the
 926   // browser's profile_manager object is created, but after ResourceBundle
 927   // is initialized.
 928   if (first_run::IsChromeFirstRun()) {
 929     first_run::ProcessMasterPreferencesResult pmp_result =
 930         first_run::ProcessMasterPreferences(user_data_dir_,
 931                                             master_prefs_.get());
 932     if (pmp_result == first_run::EULA_EXIT_NOW)
 933       return chrome::RESULT_CODE_EULA_REFUSED;
 934
 935     if (!parsed_command_line().HasSwitch(switches::kApp) &&
 936         !parsed_command_line().HasSwitch(switches::kAppId) &&
 937         !parsed_command_line().HasSwitch(switches::kShowAppList)) {
 938       AddFirstRunNewTabs(browser_creator_.get(), master_prefs_->new_tabs);
 939     }
 940
 941     // TODO(macourteau): refactor preferences that are copied from
 942     // master_preferences into local_state, as a "local_state" section in
 943     // master preferences. If possible, a generic solution would be preferred
 944     // over a copy one-by-one of specific preferences. Also see related TODO
 945     // in first_run.h.
 946
 947     // Store the initial VariationsService seed in local state, if it exists
 948     // in master prefs.
 949     if (!master_prefs_->variations_seed.empty() ||
 950         !master_prefs_->compressed_variations_seed.empty()) {
 951       if (!master_prefs_->variations_seed.empty()) {
 952         local_state_->SetString(prefs::kVariationsSeed,
 953                               master_prefs_->variations_seed);
 954       }
 955       if (!master_prefs_->compressed_variations_seed.empty()) {
 956         local_state_->SetString(prefs::kVariationsCompressedSeed,
 957                                 master_prefs_->compressed_variations_seed);
 958       }
 959       if (!master_prefs_->variations_seed_signature.empty()) {
 960         local_state_->SetString(prefs::kVariationsSeedSignature,
 961                                 master_prefs_->variations_seed_signature);
 962       }
 963       // Set the variation seed date to the current system time. If the user's
 964       // clock is incorrect, this may cause some field trial expiry checks to
 965       // not do the right thing until the next seed update from the server,
 966       // when this value will be updated.
 967       local_state_->SetInt64(prefs::kVariationsSeedDate,
 968                              base::Time::Now().ToInternalValue());
 969     }
 970
 971     if (!master_prefs_->suppress_default_browser_prompt_for_version.empty()) {
 972       local_state_->SetString(
 973           prefs::kBrowserSuppressDefaultBrowserPrompt,
 974           master_prefs_->suppress_default_browser_prompt_for_version);
 975     }
 976   }
 977 #endif
 978
 979 #if defined(OS_LINUX) || defined(OS_OPENBSD) || defined(OS_MACOSX)
 980   // Set the product channel for crash reports.
 981   base::debug::SetCrashKeyValue(crash_keys::kChannel,
 982       chrome::VersionInfo::GetVersionStringModifier());
 983 #endif
 984
 985   // Initialize tracking synchronizer system.
 986   tracking_synchronizer_ = new metrics::TrackingSynchronizer();
 987
 988 #if defined(OS_MACOSX)
 989   // Get the Keychain API to register for distributed notifications on the main
 990   // thread, which has a proper CFRunloop, instead of later on the I/O thread,
 991   // which doesn't. This ensures those notifications will get delivered
 992   // properly. See issue 37766.
 993   // (Note that the callback mask here is empty. I don't want to register for
 994   // any callbacks, I just want to initialize the mechanism.)
 995   SecKeychainAddCallback(&KeychainCallback, 0, NULL);
 996 #endif
 997
 998 #if defined(OS_CHROMEOS)
 999   // Must be done after g_browser_process is constructed, before
1000   // SetupMetricsAndFieldTrials().
1001   chromeos::CrosSettings::Initialize();
1002 #endif
1003
1004   // Now the command line has been mutated based on about:flags, we can setup
1005   // metrics and initialize field trials. The field trials are needed by
1006   // IOThread's initialization which happens in BrowserProcess:PreCreateThreads.
1007   SetupMetricsAndFieldTrials();
1008
1009   // ChromeOS needs ResourceBundle::InitSharedInstance to be called before this.
1010   browser_process_->PreCreateThreads();
1011
1012   return content::RESULT_CODE_NORMAL_EXIT;
1013 }
1014
1015 void ChromeBrowserMainParts::PreMainMessageLoopRun() {
1016   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRun");
1017   result_code_ = PreMainMessageLoopRunImpl();
1018
1019   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1020     chrome_extra_parts_[i]->PreMainMessageLoopRun();
1021 }
1022
1023 // PreMainMessageLoopRun calls these extra stages in the following order:
1024 //  PreMainMessageLoopRunImpl()
1025 //   ... initial setup, including browser_process_ setup.
1026 //   PreProfileInit()
1027 //   ... additional setup, including CreateProfile()
1028 //   PostProfileInit()
1029 //   ... additional setup
1030 //   PreBrowserStart()
1031 //   ... browser_creator_->Start (OR parameters().ui_task->Run())
1032 //   PostBrowserStart()
1033
1034 void ChromeBrowserMainParts::PreProfileInit() {
1035   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreProfileInit");
1036
1037   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1038     chrome_extra_parts_[i]->PreProfileInit();
1039
1040 #if !defined(OS_ANDROID)
1041   // Initialize the feedback uploader so it can setup notifications for profile
1042   // creation.
1043   feedback::FeedbackProfileObserver::Initialize();
1044
1045   ProfileManager* profile_manager = g_browser_process->profile_manager();
1046
1047   // First check if any ephemeral profiles are left behind because of browser
1048   // crash and schedule them for deletion and then proceed with getting the set
1049   // of profiles to open.
1050   ProfileInfoCache& profile_cache = profile_manager->GetProfileInfoCache();
1051   size_t profiles_count = profile_cache.GetNumberOfProfiles();
1052   std::vector<base::FilePath> profiles_to_delete;
1053   for (size_t i = 0; i < profiles_count; ++i) {
1054     if (profile_cache.ProfileIsEphemeralAtIndex(i))
1055       profiles_to_delete.push_back(profile_cache.GetPathOfProfileAtIndex(i));
1056   }
1057
1058   if (profiles_to_delete.size()) {
1059     for (size_t i = 0; i < profiles_to_delete.size(); ++i) {
1060       profile_manager->ScheduleProfileForDeletion(
1061           profiles_to_delete[i], ProfileManager::CreateCallback());
1062     }
1063     // Clean up stale profiles immediately after browser start.
1064     BrowserThread::PostTask(
1065         BrowserThread::FILE, FROM_HERE,
1066         base::Bind(&ProfileManager::CleanUpStaleProfiles, profiles_to_delete));
1067   }
1068 #endif  // OS_ANDROID
1069
1070 #if defined(ENABLE_EXTENSIONS)
1071   javascript_dialog_extensions_client::InstallClient();
1072 #endif
1073
1074 #if !defined(OS_IOS)
1075   InstallChromeJavaScriptNativeDialogFactory();
1076 #endif
1077 }
1078
1079 void ChromeBrowserMainParts::PostProfileInit() {
1080   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostProfileInit");
1081   LaunchDevToolsHandlerIfNeeded(parsed_command_line());
1082   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1083     chrome_extra_parts_[i]->PostProfileInit();
1084 }
1085
1086 void ChromeBrowserMainParts::PreBrowserStart() {
1087   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreBrowserStart");
1088   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1089     chrome_extra_parts_[i]->PreBrowserStart();
1090
1091   three_d_observer_.reset(new ThreeDAPIObserver());
1092 }
1093
1094 void ChromeBrowserMainParts::PostBrowserStart() {
1095   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostBrowserStart");
1096   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1097     chrome_extra_parts_[i]->PostBrowserStart();
1098 #if !defined(OS_ANDROID)
1099   // Allow ProcessSingleton to process messages.
1100   process_singleton_->Unlock();
1101 #endif
1102 #if defined(ENABLE_WEBRTC)
1103   // Set up a task to delete old WebRTC log files for all profiles. Use a delay
1104   // to reduce the impact on startup time.
1105   BrowserThread::PostDelayedTask(
1106       BrowserThread::UI,
1107       FROM_HERE,
1108       base::Bind(&WebRtcLogUtil::DeleteOldWebRtcLogFilesForAllProfiles),
1109       base::TimeDelta::FromMinutes(1));
1110 #endif
1111 }
1112
1113 int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
1114   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PreMainMessageLoopRunImpl");
1115   SCOPED_UMA_HISTOGRAM_LONG_TIMER("Startup.PreMainMessageLoopRunImplLongTime");
1116   // Android updates the metrics service dynamically depending on whether the
1117   // application is in the foreground or not. Do not start here.
1118 #if !defined(OS_ANDROID)
1119   // Now that the file thread has been started, start recording.
1120   StartMetricsRecording();
1121 #endif
1122
1123   if (!base::debug::BeingDebugged()) {
1124     // Create watchdog thread after creating all other threads because it will
1125     // watch the other threads and they must be running.
1126     browser_process_->watchdog_thread();
1127   }
1128
1129   // Do any initializating in the browser process that requires all threads
1130   // running.
1131   browser_process_->PreMainMessageLoopRun();
1132
1133   // Record last shutdown time into a histogram.
1134   browser_shutdown::ReadLastShutdownInfo();
1135
1136 #if defined(OS_WIN)
1137   // On Windows, we use our startup as an opportunity to do upgrade/uninstall
1138   // tasks.  Those care whether the browser is already running.  On Linux/Mac,
1139   // upgrade/uninstall happen separately.
1140   bool already_running = browser_util::IsBrowserAlreadyRunning();
1141
1142   // If the command line specifies 'uninstall' then we need to work here
1143   // unless we detect another chrome browser running.
1144   if (parsed_command_line().HasSwitch(switches::kUninstall)) {
1145     return DoUninstallTasks(already_running);
1146   }
1147
1148   if (parsed_command_line().HasSwitch(switches::kHideIcons) ||
1149       parsed_command_line().HasSwitch(switches::kShowIcons)) {
1150     return ChromeBrowserMainPartsWin::HandleIconsCommands(
1151         parsed_command_line_);
1152   }
1153
1154   ui::SelectFileDialog::SetFactory(new ChromeSelectFileDialogFactory(
1155       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)));
1156 #endif
1157
1158   if (parsed_command_line().HasSwitch(switches::kMakeDefaultBrowser)) {
1159     return ShellIntegration::SetAsDefaultBrowser() ?
1160         static_cast<int>(content::RESULT_CODE_NORMAL_EXIT) :
1161         static_cast<int>(chrome::RESULT_CODE_SHELL_INTEGRATION_FAILED);
1162   }
1163
1164 #if defined(USE_AURA)
1165   // Make sure aura::Env has been initialized.
1166   CHECK(aura::Env::GetInstance());
1167 #endif
1168
1169   // Android doesn't support extensions and doesn't implement ProcessSingleton.
1170 #if !defined(OS_ANDROID)
1171   // If the command line specifies --pack-extension, attempt the pack extension
1172   // startup action and exit.
1173   if (parsed_command_line().HasSwitch(switches::kPackExtension)) {
1174     extensions::StartupHelper extension_startup_helper;
1175     if (extension_startup_helper.PackExtension(parsed_command_line()))
1176       return content::RESULT_CODE_NORMAL_EXIT;
1177     return chrome::RESULT_CODE_PACK_EXTENSION_ERROR;
1178   }
1179
1180   // If we're being launched just to check the connector policy, we are
1181   // short-lived and don't want to be passing that switch off.
1182   bool pass_command_line = !parsed_command_line().HasSwitch(
1183       switches::kCheckCloudPrintConnectorPolicy);
1184
1185   if (pass_command_line) {
1186     // When another process is running, use that process instead of starting a
1187     // new one. NotifyOtherProcess will currently give the other process up to
1188     // 20 seconds to respond. Note that this needs to be done before we attempt
1189     // to read the profile.
1190     notify_result_ = process_singleton_->NotifyOtherProcessOrCreate();
1191     switch (notify_result_) {
1192       case ProcessSingleton::PROCESS_NONE:
1193         // No process already running, fall through to starting a new one.
1194         break;
1195
1196       case ProcessSingleton::PROCESS_NOTIFIED:
1197 #if defined(OS_POSIX) && !defined(OS_MACOSX)
1198         printf("%s\n", base::SysWideToNativeMB(base::UTF16ToWide(
1199             l10n_util::GetStringUTF16(IDS_USED_EXISTING_BROWSER))).c_str());
1200 #endif
1201         // Having a differentiated return type for testing allows for tests to
1202         // verify proper handling of some switches. When not testing, stick to
1203         // the standard Unix convention of returning zero when things went as
1204         // expected.
1205         if (parsed_command_line().HasSwitch(switches::kTestType))
1206           return chrome::RESULT_CODE_NORMAL_EXIT_PROCESS_NOTIFIED;
1207         return content::RESULT_CODE_NORMAL_EXIT;
1208
1209       case ProcessSingleton::PROFILE_IN_USE:
1210         return chrome::RESULT_CODE_PROFILE_IN_USE;
1211
1212       case ProcessSingleton::LOCK_ERROR:
1213         LOG(ERROR) << "Failed to create a ProcessSingleton for your profile "
1214                       "directory. This means that running multiple instances "
1215                       "would start multiple browser processes rather than "
1216                       "opening a new window in the existing process. Aborting "
1217                       "now to avoid profile corruption.";
1218         return chrome::RESULT_CODE_PROFILE_IN_USE;
1219
1220       default:
1221         NOTREACHED();
1222     }
1223   }
1224 #endif  // !defined(OS_ANDROID)
1225
1226   // Handle special early return paths (which couldn't be processed even earlier
1227   // as they require the process singleton to be held) first.
1228
1229   std::string try_chrome =
1230       parsed_command_line().GetSwitchValueASCII(switches::kTryChromeAgain);
1231   if (!try_chrome.empty()) {
1232 #if defined(OS_WIN)
1233     // Setup.exe has determined that we need to run a retention experiment
1234     // and has lauched chrome to show the experiment UI. It is guaranteed that
1235     // no other Chrome is currently running as the process singleton was
1236     // sucessfully grabbed above.
1237     int try_chrome_int;
1238     base::StringToInt(try_chrome, &try_chrome_int);
1239     TryChromeDialogView::Result answer = TryChromeDialogView::Show(
1240         try_chrome_int,
1241         base::Bind(&ChromeProcessSingleton::SetActiveModalDialog,
1242                    base::Unretained(process_singleton_.get())));
1243     if (answer == TryChromeDialogView::NOT_NOW)
1244       return chrome::RESULT_CODE_NORMAL_EXIT_CANCEL;
1245     if (answer == TryChromeDialogView::UNINSTALL_CHROME)
1246       return chrome::RESULT_CODE_NORMAL_EXIT_EXP2;
1247     // At this point the user is willing to try chrome again.
1248     if (answer == TryChromeDialogView::TRY_CHROME_AS_DEFAULT) {
1249       // Only set in the unattended case, the interactive case is Windows 8.
1250       if (ShellIntegration::CanSetAsDefaultBrowser() ==
1251           ShellIntegration::SET_DEFAULT_UNATTENDED)
1252         ShellIntegration::SetAsDefaultBrowser();
1253     }
1254 #else
1255     // We don't support retention experiments on Mac or Linux.
1256     return content::RESULT_CODE_NORMAL_EXIT;
1257 #endif  // defined(OS_WIN)
1258   }
1259
1260 #if defined(OS_WIN)
1261   // Do the tasks if chrome has been upgraded while it was last running.
1262   if (!already_running && upgrade_util::DoUpgradeTasks(parsed_command_line()))
1263     return content::RESULT_CODE_NORMAL_EXIT;
1264
1265   // Check if there is any machine level Chrome installed on the current
1266   // machine. If yes and the current Chrome process is user level, we do not
1267   // allow the user level Chrome to run. So we notify the user and uninstall
1268   // user level Chrome.
1269   // Note this check needs to happen here (after the process singleton was
1270   // obtained but before potentially creating the first run sentinel).
1271   if (ChromeBrowserMainPartsWin::CheckMachineLevelInstall())
1272     return chrome::RESULT_CODE_MACHINE_LEVEL_INSTALL_EXISTS;
1273 #endif  // defined(OS_WIN)
1274
1275 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1276   if (sxs_linux::ShouldMigrateUserDataDir())
1277     return sxs_linux::MigrateUserDataDir();
1278 #endif  // defined(OS_LINUX) && !defined(OS_CHROMEOS)
1279
1280   // Desktop construction occurs here, (required before profile creation).
1281   PreProfileInit();
1282
1283   // Profile creation ----------------------------------------------------------
1284
1285   metrics::MetricsService::SetExecutionPhase(
1286       metrics::MetricsService::CREATE_PROFILE,
1287       g_browser_process->local_state());
1288   profile_ = CreatePrimaryProfile(parameters(),
1289                                   user_data_dir_,
1290                                   parsed_command_line());
1291   if (!profile_)
1292     return content::RESULT_CODE_NORMAL_EXIT;
1293
1294 #if !defined(OS_ANDROID)
1295   // The first run sentinel must be created after the process singleton was
1296   // grabbed and no early return paths were otherwise hit above.
1297   first_run::CreateSentinelIfNeeded();
1298 #endif  // !defined(OS_ANDROID)
1299
1300 #if defined(ENABLE_BACKGROUND)
1301   // Autoload any profiles which are running background apps.
1302   // TODO(rlp): Do this on a separate thread. See http://crbug.com/99075.
1303   browser_process_->profile_manager()->AutoloadProfiles();
1304 #endif
1305   // Post-profile init ---------------------------------------------------------
1306
1307   TranslateService::Initialize();
1308
1309   // Needs to be done before PostProfileInit, since login manager on CrOS is
1310   // called inside PostProfileInit.
1311   content::WebUIControllerFactory::RegisterFactory(
1312       ChromeWebUIControllerFactory::GetInstance());
1313
1314   // NaClBrowserDelegateImpl is accessed inside PostProfileInit().
1315   // So make sure to create it before that.
1316 #if !defined(DISABLE_NACL)
1317   NaClBrowserDelegateImpl* delegate =
1318       new NaClBrowserDelegateImpl(browser_process_->profile_manager());
1319   nacl::NaClBrowser::SetDelegate(delegate);
1320 #endif
1321
1322   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
1323   // (requires supporting early exit).
1324   PostProfileInit();
1325
1326   // Retrieve cached GL strings from local state and use them for GPU
1327   // blacklist decisions.
1328   if (g_browser_process->gl_string_manager())
1329     g_browser_process->gl_string_manager()->Initialize();
1330
1331   // Create an instance of GpuModeManager to watch gpu mode pref change.
1332   g_browser_process->gpu_mode_manager();
1333
1334 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1335   // Show the First Run UI if this is the first time Chrome has been run on
1336   // this computer, or we're being compelled to do so by a command line flag.
1337   // Note that this be done _after_ the PrefService is initialized and all
1338   // preferences are registered, since some of the code that the importer
1339   // touches reads preferences.
1340   if (first_run::IsChromeFirstRun()) {
1341     first_run::AutoImport(profile_,
1342                           master_prefs_->homepage_defined,
1343                           master_prefs_->do_import_items,
1344                           master_prefs_->dont_import_items,
1345                           master_prefs_->import_bookmarks_path);
1346
1347     // Note: this can pop the first run consent dialog on linux.
1348     first_run::DoPostImportTasks(profile_,
1349                                  master_prefs_->make_chrome_default_for_user);
1350
1351     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
1352       browser_creator_->set_show_main_browser_window(
1353           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
1354     } else {
1355       browser_creator_->set_is_default_browser_dialog_suppressed(true);
1356     }
1357   }
1358 #endif  // !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
1359
1360 #if defined(OS_WIN)
1361   // Sets things up so that if we crash from this point on, a dialog will
1362   // popup asking the user to restart chrome. It is done this late to avoid
1363   // testing against a bunch of special cases that are taken care early on.
1364   ChromeBrowserMainPartsWin::PrepareRestartOnCrashEnviroment(
1365       parsed_command_line());
1366
1367   // Registers Chrome with the Windows Restart Manager, which will restore the
1368   // Chrome session when the computer is restarted after a system update.
1369   // This could be run as late as WM_QUERYENDSESSION for system update reboots,
1370   // but should run on startup if extended to handle crashes/hangs/patches.
1371   // Also, better to run once here than once for each HWND's WM_QUERYENDSESSION.
1372   if (base::win::GetVersion() >= base::win::VERSION_VISTA) {
1373     ChromeBrowserMainPartsWin::RegisterApplicationRestart(
1374         parsed_command_line());
1375   }
1376
1377   // Verify that the profile is not on a network share and if so prepare to show
1378   // notification to the user.
1379   if (NetworkProfileBubble::ShouldCheckNetworkProfile(profile_)) {
1380     BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
1381         base::Bind(&NetworkProfileBubble::CheckNetworkProfile,
1382                    profile_->GetPath()));
1383   }
1384 #endif  // OS_WIN
1385
1386 #if defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1387   // Init the RLZ library. This just binds the dll and schedules a task on the
1388   // file thread to be run sometime later. If this is the first run we record
1389   // the installation event.
1390   PrefService* pref_service = profile_->GetPrefs();
1391   int ping_delay = first_run::IsChromeFirstRun() ? master_prefs_->ping_delay :
1392       pref_service->GetInteger(first_run::GetPingDelayPrefName().c_str());
1393   // Negative ping delay means to send ping immediately after a first search is
1394   // recorded.
1395   RLZTracker::InitRlzFromProfileDelayed(
1396       profile_, first_run::IsChromeFirstRun(), ping_delay < 0,
1397       base::TimeDelta::FromMilliseconds(abs(ping_delay)));
1398 #endif  // defined(ENABLE_RLZ) && !defined(OS_CHROMEOS)
1399
1400   // Configure modules that need access to resources.
1401   net::NetModule::SetResourceProvider(chrome_common_net::NetResourceProvider);
1402
1403   // In unittest mode, this will do nothing.  In normal mode, this will create
1404   // the global IntranetRedirectDetector instance, which will promptly go to
1405   // sleep for seven seconds (to avoid slowing startup), and wake up afterwards
1406   // to see if it should do anything else.
1407   //
1408   // A simpler way of doing all this would be to have some function which could
1409   // give the time elapsed since startup, and simply have this object check that
1410   // when asked to initialize itself, but this doesn't seem to exist.
1411   //
1412   // This can't be created in the BrowserProcessImpl constructor because it
1413   // needs to read prefs that get set after that runs.
1414   browser_process_->intranet_redirect_detector();
1415   GoogleSearchCounter::RegisterForNotifications();
1416
1417   // Check SDCH field trial.  Default is now that everything is enabled,
1418   // so provide options for disabling HTTPS or all of SDCH.
1419   const char kSdchFieldTrialName[] = "SDCH";
1420   const char kEnabledHttpOnlyGroupName[] = "EnabledHttpOnly";
1421   const char kDisabledAllGroupName[] = "DisabledAll";
1422
1423   // Store in a string on return to keep underlying storage for
1424   // StringPiece stable.
1425   std::string sdch_trial_group_string =
1426       base::FieldTrialList::FindFullName(kSdchFieldTrialName);
1427   base::StringPiece sdch_trial_group(sdch_trial_group_string);
1428   if (sdch_trial_group.starts_with(kEnabledHttpOnlyGroupName)) {
1429     net::SdchManager::EnableSdchSupport(true);
1430     net::SdchManager::EnableSecureSchemeSupport(false);
1431   } else if (sdch_trial_group.starts_with(kDisabledAllGroupName)) {
1432     net::SdchManager::EnableSdchSupport(false);
1433   }
1434
1435 #if defined(ENABLE_PRINT_PREVIEW) && !defined(OFFICIAL_BUILD)
1436   if (parsed_command_line().HasSwitch(switches::kDebugPrint)) {
1437     base::FilePath path =
1438         parsed_command_line().GetSwitchValuePath(switches::kDebugPrint);
1439     printing::PrintedDocument::set_debug_dump_path(path);
1440   }
1441 #endif
1442
1443   HandleTestParameters(parsed_command_line());
1444   browser_process_->metrics_service()->RecordBreakpadHasDebugger(
1445       base::debug::BeingDebugged());
1446
1447   language_usage_metrics::LanguageUsageMetrics::RecordAcceptLanguages(
1448       profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
1449   language_usage_metrics::LanguageUsageMetrics::RecordApplicationLanguage(
1450       browser_process_->GetApplicationLocale());
1451
1452   // Start watching for hangs during startup. We disarm this hang detector when
1453   // ThreadWatcher takes over or when browser is shutdown or when
1454   // startup_watcher_ is deleted.
1455   metrics::MetricsService::SetExecutionPhase(
1456       metrics::MetricsService::STARTUP_TIMEBOMB_ARM,
1457       g_browser_process->local_state());
1458   startup_watcher_->Arm(base::TimeDelta::FromSeconds(600));
1459
1460   // On mobile, need for clean shutdown arises only when the application comes
1461   // to foreground (i.e. MetricsService::OnAppEnterForeground is called).
1462   // http://crbug.com/179143
1463 #if !defined(OS_ANDROID)
1464   // Start watching for a hang.
1465   browser_process_->metrics_service()->LogNeedForCleanShutdown();
1466 #endif
1467
1468 #if defined(ENABLE_PRINT_PREVIEW)
1469   // Create the instance of the cloud print proxy service so that it can launch
1470   // the service process if needed. This is needed because the service process
1471   // might have shutdown because an update was available.
1472   // TODO(torne): this should maybe be done with
1473   // BrowserContextKeyedServiceFactory::ServiceIsCreatedWithBrowserContext()
1474   // instead?
1475   CloudPrintProxyServiceFactory::GetForProfile(profile_);
1476 #endif
1477
1478   // Start watching all browser threads for responsiveness.
1479   metrics::MetricsService::SetExecutionPhase(
1480       metrics::MetricsService::THREAD_WATCHER_START,
1481       g_browser_process->local_state());
1482   ThreadWatcherList::StartWatchingAll(parsed_command_line());
1483
1484 #if defined(OS_ANDROID)
1485   ThreadWatcherAndroid::RegisterApplicationStatusListener();
1486 #endif
1487
1488 #if !defined(DISABLE_NACL)
1489   BrowserThread::PostTask(
1490       BrowserThread::IO,
1491       FROM_HERE,
1492       base::Bind(nacl::NaClProcessHost::EarlyStartup));
1493 #endif
1494
1495   // Make sure initial prefs are recorded
1496   PrefMetricsService::Factory::GetForProfile(profile_);
1497
1498   PreBrowserStart();
1499
1500   // Instantiate the notification UI manager, as this triggers a perf timer
1501   // used to measure startup time. TODO(stevenjb): Figure out what is actually
1502   // triggering the timer and call that explicitly in the approprate place.
1503   // http://crbug.com/105065.
1504   browser_process_->notification_ui_manager();
1505
1506   // This must be called prior to RegisterComponentsForUpdate, in case the CLD
1507   // data source is based on the Component Updater.
1508   translate::BrowserCldUtils::ConfigureDefaultDataProvider();
1509
1510   if (!parsed_command_line().HasSwitch(switches::kDisableComponentUpdate))
1511     RegisterComponentsForUpdate();
1512
1513 #if defined(OS_ANDROID)
1514   chrome_variations::VariationsService* variations_service =
1515       browser_process_->variations_service();
1516   if (variations_service) {
1517     // Just initialize the policy prefs service here. Variations seed fetching
1518     // will be initialized when the app enters foreground mode.
1519     variations_service->set_policy_pref_service(profile_->GetPrefs());
1520   }
1521   translate::TranslateDownloadManager::RequestLanguageList(
1522       profile_->GetPrefs());
1523
1524 #else
1525   // Most general initialization is behind us, but opening a
1526   // tab and/or session restore and such is still to be done.
1527   base::TimeTicks browser_open_start = base::TimeTicks::Now();
1528
1529   // We are in regular browser boot sequence. Open initial tabs and enter the
1530   // main message loop.
1531 #if defined(OS_CHROMEOS)
1532   // On ChromeOS multiple profiles doesn't apply, and will break if we load
1533   // them this early as the cryptohome hasn't yet been mounted (which happens
1534   // only once we log in.
1535   std::vector<Profile*> last_opened_profiles;
1536 #else
1537   std::vector<Profile*> last_opened_profiles =
1538       g_browser_process->profile_manager()->GetLastOpenedProfiles();
1539 #endif
1540
1541   if (browser_creator_->Start(parsed_command_line(), base::FilePath(),
1542                               profile_, last_opened_profiles)) {
1543 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS))
1544     // Initialize autoupdate timer. Timer callback costs basically nothing
1545     // when browser is not in persistent mode, so it's OK to let it ride on
1546     // the main thread. This needs to be done here because we don't want
1547     // to start the timer when Chrome is run inside a test harness.
1548     browser_process_->StartAutoupdateTimer();
1549 #endif
1550
1551 #if defined(OS_LINUX) && !defined(OS_CHROMEOS)
1552     // On Linux, the running exe will be updated if an upgrade becomes
1553     // available while the browser is running.  We need to save the last
1554     // modified time of the exe, so we can compare to determine if there is
1555     // an upgrade while the browser is kept alive by a persistent extension.
1556     upgrade_util::SaveLastModifiedTimeOfExe();
1557 #endif
1558
1559     // Record now as the last successful chrome start.
1560     GoogleUpdateSettings::SetLastRunTime();
1561
1562 #if defined(OS_MACOSX)
1563     // Call Recycle() here as late as possible, before going into the loop
1564     // because Start() will add things to it while creating the main window.
1565     if (parameters().autorelease_pool)
1566       parameters().autorelease_pool->Recycle();
1567 #endif
1568
1569     base::TimeDelta delay = base::TimeTicks::Now() - browser_open_start;
1570     UMA_HISTOGRAM_LONG_TIMES_100("Startup.BrowserOpenTabs", delay);
1571
1572     // If we're running tests (ui_task is non-null), then we don't want to
1573     // call RequestLanguageList or StartRepeatedVariationsSeedFetch or
1574     // RequestLanguageList
1575     if (parameters().ui_task == NULL) {
1576       // Request new variations seed information from server.
1577       chrome_variations::VariationsService* variations_service =
1578           browser_process_->variations_service();
1579       if (variations_service) {
1580         variations_service->StartRepeatedVariationsSeedFetch();
1581
1582 #if defined(OS_WIN)
1583         variations_service->StartGoogleUpdateRegistrySync();
1584 #endif
1585       }
1586
1587       translate::TranslateDownloadManager::RequestLanguageList(
1588           profile_->GetPrefs());
1589     }
1590
1591     run_message_loop_ = true;
1592   } else {
1593     run_message_loop_ = false;
1594   }
1595   browser_creator_.reset();
1596
1597 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
1598   if (g_browser_process->metrics_service()->reporting_active())
1599     content::StartPowerUsageMonitor();
1600 #endif
1601
1602   process_power_collector_.reset(new ProcessPowerCollector);
1603   process_power_collector_->Initialize();
1604 #endif  // !defined(OS_ANDROID)
1605
1606   PostBrowserStart();
1607
1608   if (parameters().ui_task) {
1609     parameters().ui_task->Run();
1610     delete parameters().ui_task;
1611     run_message_loop_ = false;
1612   }
1613 #if defined(OS_ANDROID)
1614   // We never run the C++ main loop on Android, since the UI thread message
1615   // loop is controlled by the OS, so this is as close as we can get to
1616   // the start of the main loop
1617   if (result_code_ <= 0) {
1618     RecordBrowserStartupTime();
1619   }
1620 #endif
1621   return result_code_;
1622 }
1623
1624 bool ChromeBrowserMainParts::MainMessageLoopRun(int* result_code) {
1625   TRACE_EVENT0("startup", "ChromeBrowserMainParts::MainMessageLoopRun");
1626 #if defined(OS_ANDROID)
1627   // Chrome on Android does not use default MessageLoop. It has its own
1628   // Android specific MessageLoop
1629   NOTREACHED();
1630   return true;
1631 #else
1632   // Set the result code set in PreMainMessageLoopRun or set above.
1633   *result_code = result_code_;
1634   if (!run_message_loop_)
1635     return true;  // Don't run the default message loop.
1636
1637   // These should be invoked as close to the start of the browser's
1638   // UI thread message loop as possible to get a stable measurement
1639   // across versions.
1640   RecordBrowserStartupTime();
1641
1642   DCHECK(base::MessageLoopForUI::IsCurrent());
1643   base::RunLoop run_loop;
1644
1645   performance_monitor::PerformanceMonitor::GetInstance()->StartGatherCycle();
1646
1647   metrics::MetricsService::SetExecutionPhase(
1648       metrics::MetricsService::MAIN_MESSAGE_LOOP_RUN,
1649       g_browser_process->local_state());
1650   run_loop.Run();
1651
1652   return true;
1653 #endif
1654 }
1655
1656 void ChromeBrowserMainParts::PostMainMessageLoopRun() {
1657   TRACE_EVENT0("startup", "ChromeBrowserMainParts::PostMainMessageLoopRun");
1658 #if defined(OS_ANDROID)
1659   // Chrome on Android does not use default MessageLoop. It has its own
1660   // Android specific MessageLoop
1661   NOTREACHED();
1662 #else
1663
1664   // Start watching for jank during shutdown. It gets disarmed when
1665   // |shutdown_watcher_| object is destructed.
1666   metrics::MetricsService::SetExecutionPhase(
1667       metrics::MetricsService::SHUTDOWN_TIMEBOMB_ARM,
1668       g_browser_process->local_state());
1669   shutdown_watcher_->Arm(base::TimeDelta::FromSeconds(300));
1670
1671   // Disarm the startup hang detector time bomb if it is still Arm'ed.
1672   startup_watcher_->Disarm();
1673
1674   // Remove observers attached to D-Bus clients before DbusThreadManager is
1675   // shut down.
1676   process_power_collector_.reset();
1677
1678   for (size_t i = 0; i < chrome_extra_parts_.size(); ++i)
1679     chrome_extra_parts_[i]->PostMainMessageLoopRun();
1680
1681   // Some tests don't set parameters.ui_task, so they started translate
1682   // language fetch that was never completed so we need to cleanup here
1683   // otherwise it will be done by the destructor in a wrong thread.
1684   TranslateService::Shutdown(parameters().ui_task == NULL);
1685
1686   if (notify_result_ == ProcessSingleton::PROCESS_NONE)
1687     process_singleton_->Cleanup();
1688
1689   // Stop all tasks that might run on WatchDogThread.
1690   ThreadWatcherList::StopWatchingAll();
1691
1692   browser_process_->metrics_service()->Stop();
1693
1694   restart_last_session_ = browser_shutdown::ShutdownPreThreadsStop();
1695   browser_process_->StartTearDown();
1696 #endif
1697 }
1698
1699 void ChromeBrowserMainParts::PostDestroyThreads() {
1700 #if defined(OS_ANDROID)
1701   // On Android, there is no quit/exit. So the browser's main message loop will
1702   // not finish.
1703   NOTREACHED();
1704 #else
1705   browser_process_->PostDestroyThreads();
1706   // browser_shutdown takes care of deleting browser_process, so we need to
1707   // release it.
1708   ignore_result(browser_process_.release());
1709   browser_shutdown::ShutdownPostThreadsStop(restart_last_session_);
1710   master_prefs_.reset();
1711   process_singleton_.reset();
1712   device_event_log::Shutdown();
1713
1714   // We need to do this check as late as possible, but due to modularity, this
1715   // may be the last point in Chrome.  This would be more effective if done at
1716   // a higher level on the stack, so that it is impossible for an early return
1717   // to bypass this code.  Perhaps we need a *final* hook that is called on all
1718   // paths from content/browser/browser_main.
1719   CHECK(metrics::MetricsService::UmaMetricsProperlyShutdown());
1720
1721 #if defined(OS_CHROMEOS)
1722   chromeos::CrosSettings::Shutdown();
1723 #endif
1724 #endif
1725 }
1726
1727 // Public members:
1728
1729 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
1730   chrome_extra_parts_.push_back(parts);
1731 }