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      1 // Copyright (c) 2013 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/chromeos/chrome_browser_main_chromeos.h"
      6 
      7 #include <string>
      8 #include <vector>
      9 
     10 #include "ash/ash_switches.h"
     11 #include "ash/shell.h"
     12 #include "base/bind.h"
     13 #include "base/callback.h"
     14 #include "base/command_line.h"
     15 #include "base/files/file_util.h"
     16 #include "base/lazy_instance.h"
     17 #include "base/linux_util.h"
     18 #include "base/path_service.h"
     19 #include "base/prefs/pref_service.h"
     20 #include "base/strings/string_number_conversions.h"
     21 #include "base/strings/string_split.h"
     22 #include "base/sys_info.h"
     23 #include "chrome/browser/browser_process.h"
     24 #include "chrome/browser/browser_process_platform_part_chromeos.h"
     25 #include "chrome/browser/chrome_notification_types.h"
     26 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
     27 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
     28 #include "chrome/browser/chromeos/app_mode/kiosk_app_launch_error.h"
     29 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
     30 #include "chrome/browser/chromeos/app_mode/kiosk_mode_idle_app_name_notification.h"
     31 #include "chrome/browser/chromeos/boot_times_loader.h"
     32 #include "chrome/browser/chromeos/dbus/cros_dbus_service.h"
     33 #include "chrome/browser/chromeos/device/input_service_proxy.h"
     34 #include "chrome/browser/chromeos/events/event_rewriter.h"
     35 #include "chrome/browser/chromeos/events/event_rewriter_controller.h"
     36 #include "chrome/browser/chromeos/events/keyboard_driven_event_rewriter.h"
     37 #include "chrome/browser/chromeos/extensions/default_app_order.h"
     38 #include "chrome/browser/chromeos/extensions/extension_system_event_observer.h"
     39 #include "chrome/browser/chromeos/external_metrics.h"
     40 #include "chrome/browser/chromeos/imageburner/burn_manager.h"
     41 #include "chrome/browser/chromeos/input_method/input_method_configuration.h"
     42 #include "chrome/browser/chromeos/input_method/input_method_util.h"
     43 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_idle_logout.h"
     44 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_screensaver.h"
     45 #include "chrome/browser/chromeos/kiosk_mode/kiosk_mode_settings.h"
     46 #include "chrome/browser/chromeos/language_preferences.h"
     47 #include "chrome/browser/chromeos/login/helper.h"
     48 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
     49 #include "chrome/browser/chromeos/login/login_wizard.h"
     50 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
     51 #include "chrome/browser/chromeos/login/startup_utils.h"
     52 #include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
     53 #include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
     54 #include "chrome/browser/chromeos/login/wizard_controller.h"
     55 #include "chrome/browser/chromeos/memory/oom_priority_manager.h"
     56 #include "chrome/browser/chromeos/net/network_portal_detector_impl.h"
     57 #include "chrome/browser/chromeos/options/cert_library.h"
     58 #include "chrome/browser/chromeos/ownership/owner_settings_service_chromeos_factory.h"
     59 #include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
     60 #include "chrome/browser/chromeos/policy/device_local_account.h"
     61 #include "chrome/browser/chromeos/power/freezer_cgroup_process_manager.h"
     62 #include "chrome/browser/chromeos/power/idle_action_warning_observer.h"
     63 #include "chrome/browser/chromeos/power/light_bar.h"
     64 #include "chrome/browser/chromeos/power/peripheral_battery_observer.h"
     65 #include "chrome/browser/chromeos/power/power_button_observer.h"
     66 #include "chrome/browser/chromeos/power/power_data_collector.h"
     67 #include "chrome/browser/chromeos/power/power_prefs.h"
     68 #include "chrome/browser/chromeos/power/renderer_freezer.h"
     69 #include "chrome/browser/chromeos/profiles/profile_helper.h"
     70 #include "chrome/browser/chromeos/settings/device_oauth2_token_service_factory.h"
     71 #include "chrome/browser/chromeos/settings/device_settings_service.h"
     72 #include "chrome/browser/chromeos/status/data_promo_notification.h"
     73 #include "chrome/browser/chromeos/system/input_device_settings.h"
     74 #include "chrome/browser/chromeos/upgrade_detector_chromeos.h"
     75 #include "chrome/browser/defaults.h"
     76 #include "chrome/browser/lifetime/application_lifetime.h"
     77 #include "chrome/browser/net/chrome_network_delegate.h"
     78 #include "chrome/browser/profiles/profile.h"
     79 #include "chrome/browser/profiles/profile_manager.h"
     80 #include "chrome/browser/rlz/rlz.h"
     81 #include "chrome/common/chrome_constants.h"
     82 #include "chrome/common/chrome_paths.h"
     83 #include "chrome/common/chrome_switches.h"
     84 #include "chrome/common/chrome_version_info.h"
     85 #include "chrome/common/logging_chrome.h"
     86 #include "chrome/common/pref_names.h"
     87 #include "chromeos/audio/audio_devices_pref_handler.h"
     88 #include "chromeos/audio/cras_audio_handler.h"
     89 #include "chromeos/cert_loader.h"
     90 #include "chromeos/chromeos_paths.h"
     91 #include "chromeos/chromeos_switches.h"
     92 #include "chromeos/cryptohome/async_method_caller.h"
     93 #include "chromeos/cryptohome/homedir_methods.h"
     94 #include "chromeos/cryptohome/system_salt_getter.h"
     95 #include "chromeos/dbus/dbus_thread_manager.h"
     96 #include "chromeos/dbus/session_manager_client.h"
     97 #include "chromeos/disks/disk_mount_manager.h"
     98 #include "chromeos/ime/ime_keyboard.h"
     99 #include "chromeos/ime/input_method_manager.h"
    100 #include "chromeos/login/login_state.h"
    101 #include "chromeos/login/user_names.h"
    102 #include "chromeos/login_event_recorder.h"
    103 #include "chromeos/network/network_change_notifier_chromeos.h"
    104 #include "chromeos/network/network_change_notifier_factory_chromeos.h"
    105 #include "chromeos/network/network_handler.h"
    106 #include "chromeos/system/statistics_provider.h"
    107 #include "chromeos/tpm_token_loader.h"
    108 #include "components/metrics/metrics_service.h"
    109 #include "components/ownership/owner_key_util.h"
    110 #include "components/session_manager/core/session_manager.h"
    111 #include "components/user_manager/user.h"
    112 #include "components/user_manager/user_manager.h"
    113 #include "content/public/browser/browser_thread.h"
    114 #include "content/public/browser/notification_service.h"
    115 #include "content/public/browser/power_save_blocker.h"
    116 #include "content/public/common/main_function_params.h"
    117 #include "media/audio/sounds/sounds_manager.h"
    118 #include "net/base/network_change_notifier.h"
    119 #include "net/url_request/url_request.h"
    120 #include "net/url_request/url_request_context_getter.h"
    121 #include "ui/base/touch/touch_device.h"
    122 #include "ui/events/event_utils.h"
    123 
    124 // Exclude X11 dependents for ozone
    125 #if defined(USE_X11)
    126 #include "chrome/browser/chromeos/device_uma.h"
    127 #include "chrome/browser/chromeos/events/system_key_event_listener.h"
    128 #include "chrome/browser/chromeos/events/xinput_hierarchy_changed_event_listener.h"
    129 #endif
    130 
    131 namespace chromeos {
    132 
    133 namespace {
    134 
    135 void ChromeOSVersionCallback(const std::string& version) {
    136   base::SetLinuxDistro(std::string("CrOS ") + version);
    137 }
    138 
    139 bool ShouldAutoLaunchKioskApp(const base::CommandLine& command_line) {
    140   KioskAppManager* app_manager = KioskAppManager::Get();
    141   return command_line.HasSwitch(switches::kLoginManager) &&
    142       !command_line.HasSwitch(switches::kForceLoginManagerInTests) &&
    143       app_manager->IsAutoLaunchEnabled() &&
    144       KioskAppLaunchError::Get() == KioskAppLaunchError::NONE;
    145 }
    146 
    147 }  // namespace
    148 
    149 namespace internal {
    150 
    151 // Wrapper class for initializing dbus related services and shutting them
    152 // down. This gets instantiated in a scoped_ptr so that shutdown methods in the
    153 // destructor will get called if and only if this has been instantiated.
    154 class DBusServices {
    155  public:
    156   explicit DBusServices(const content::MainFunctionParams& parameters) {
    157     // Initialize DBusThreadManager for the browser. This must be done after
    158     // the main message loop is started, as it uses the message loop.
    159     DBusThreadManager::Initialize();
    160     CrosDBusService::Initialize();
    161 
    162     // Initialize PowerDataCollector after DBusThreadManager is initialized.
    163     PowerDataCollector::Initialize();
    164 
    165     LoginState::Initialize();
    166     SystemSaltGetter::Initialize();
    167     TPMTokenLoader::Initialize();
    168     CertLoader::Initialize();
    169 
    170     disks::DiskMountManager::Initialize();
    171     cryptohome::AsyncMethodCaller::Initialize();
    172     cryptohome::HomedirMethods::Initialize();
    173 
    174     NetworkHandler::Initialize();
    175     CertLibrary::Initialize();
    176 
    177     // Initialize the network change notifier for Chrome OS. The network
    178     // change notifier starts to monitor changes from the power manager and
    179     // the network manager.
    180     NetworkChangeNotifierFactoryChromeos::GetInstance()->Initialize();
    181 
    182     // Likewise, initialize the upgrade detector for Chrome OS. The upgrade
    183     // detector starts to monitor changes from the update engine.
    184     UpgradeDetectorChromeos::GetInstance()->Init();
    185 
    186     // Initialize the device settings service so that we'll take actions per
    187     // signals sent from the session manager. This needs to happen before
    188     // g_browser_process initializes BrowserPolicyConnector.
    189     DeviceSettingsService::Initialize();
    190     DeviceSettingsService::Get()->SetSessionManager(
    191         DBusThreadManager::Get()->GetSessionManagerClient(),
    192         OwnerSettingsServiceChromeOSFactory::GetInstance()->GetOwnerKeyUtil());
    193   }
    194 
    195   ~DBusServices() {
    196     CertLibrary::Shutdown();
    197     NetworkHandler::Shutdown();
    198 
    199     cryptohome::AsyncMethodCaller::Shutdown();
    200     disks::DiskMountManager::Shutdown();
    201 
    202     SystemSaltGetter::Shutdown();
    203     LoginState::Shutdown();
    204     CertLoader::Shutdown();
    205     TPMTokenLoader::Shutdown();
    206 
    207     CrosDBusService::Shutdown();
    208 
    209     // Shutdown the PowerDataCollector before shutting down DBusThreadManager.
    210     PowerDataCollector::Shutdown();
    211 
    212     // NOTE: This must only be called if Initialize() was called.
    213     DBusThreadManager::Shutdown();
    214   }
    215 
    216  private:
    217 
    218   DISALLOW_COPY_AND_ASSIGN(DBusServices);
    219 };
    220 
    221 }  //  namespace internal
    222 
    223 // ChromeBrowserMainPartsChromeos ----------------------------------------------
    224 
    225 ChromeBrowserMainPartsChromeos::ChromeBrowserMainPartsChromeos(
    226     const content::MainFunctionParams& parameters)
    227     : ChromeBrowserMainPartsLinux(parameters) {
    228 }
    229 
    230 ChromeBrowserMainPartsChromeos::~ChromeBrowserMainPartsChromeos() {
    231   if (KioskModeSettings::Get()->IsKioskModeEnabled())
    232     ShutdownKioskModeScreensaver();
    233 
    234   // To be precise, logout (browser shutdown) is not yet done, but the
    235   // remaining work is negligible, hence we say LogoutDone here.
    236   BootTimesLoader::Get()->AddLogoutTimeMarker("LogoutDone", false);
    237   BootTimesLoader::Get()->WriteLogoutTimes();
    238 }
    239 
    240 // content::BrowserMainParts and ChromeBrowserMainExtraParts overrides ---------
    241 
    242 void ChromeBrowserMainPartsChromeos::PreEarlyInitialization() {
    243   CommandLine* singleton_command_line = CommandLine::ForCurrentProcess();
    244 
    245   if (parsed_command_line().HasSwitch(switches::kGuestSession)) {
    246     // Disable sync and extensions if we're in "browse without sign-in" mode.
    247     singleton_command_line->AppendSwitch(::switches::kDisableSync);
    248     singleton_command_line->AppendSwitch(::switches::kDisableExtensions);
    249     browser_defaults::bookmarks_enabled = false;
    250   }
    251 
    252   // If we're not running on real Chrome OS hardware (or under VM), and are not
    253   // showing the login manager or attempting a command line login, login with a
    254   // stub user.
    255   if (!base::SysInfo::IsRunningOnChromeOS() &&
    256       !parsed_command_line().HasSwitch(switches::kLoginManager) &&
    257       !parsed_command_line().HasSwitch(switches::kLoginUser) &&
    258       !parsed_command_line().HasSwitch(switches::kGuestSession)) {
    259     singleton_command_line->AppendSwitchASCII(switches::kLoginUser,
    260                                               chromeos::login::kStubUser);
    261     if (!parsed_command_line().HasSwitch(switches::kLoginProfile)) {
    262       singleton_command_line->AppendSwitchASCII(switches::kLoginProfile,
    263                                                 chrome::kTestUserProfileDir);
    264     }
    265     LOG(WARNING) << "Running as stub user with profile dir: "
    266                  << singleton_command_line->GetSwitchValuePath(
    267                      switches::kLoginProfile).value();
    268   }
    269 
    270 #if defined(GOOGLE_CHROME_BUILD)
    271   const char kChromeOSReleaseTrack[] = "CHROMEOS_RELEASE_TRACK";
    272   std::string channel;
    273   if (base::SysInfo::GetLsbReleaseValue(kChromeOSReleaseTrack, &channel))
    274     chrome::VersionInfo::SetChannel(channel);
    275 #endif
    276 
    277   ChromeBrowserMainPartsLinux::PreEarlyInitialization();
    278 }
    279 
    280 void ChromeBrowserMainPartsChromeos::PreMainMessageLoopStart() {
    281   // Replace the default NetworkChangeNotifierFactory with ChromeOS specific
    282   // implementation. This must be done before BrowserMainLoop calls
    283   // net::NetworkChangeNotifier::Create() in MainMessageLoopStart().
    284   net::NetworkChangeNotifier::SetFactory(
    285       new NetworkChangeNotifierFactoryChromeos());
    286   ChromeBrowserMainPartsLinux::PreMainMessageLoopStart();
    287 }
    288 
    289 void ChromeBrowserMainPartsChromeos::PostMainMessageLoopStart() {
    290   base::FilePath user_data_dir;
    291   if (!base::SysInfo::IsRunningOnChromeOS() &&
    292       PathService::Get(chrome::DIR_USER_DATA, &user_data_dir)) {
    293     // Override some paths with stub locations so that cloud policy and
    294     // enterprise enrollment work on desktop builds, for ease of
    295     // development.
    296     chromeos::RegisterStubPathOverrides(user_data_dir);
    297   }
    298 
    299   dbus_services_.reset(new internal::DBusServices(parameters()));
    300 
    301   ChromeBrowserMainPartsLinux::PostMainMessageLoopStart();
    302 }
    303 
    304 // Threads are initialized between MainMessageLoopStart and MainMessageLoopRun.
    305 // about_flags settings are applied in ChromeBrowserMainParts::PreCreateThreads.
    306 void ChromeBrowserMainPartsChromeos::PreMainMessageLoopRun() {
    307   // Set the crypto thread after the IO thread has been created/started.
    308   TPMTokenLoader::Get()->SetCryptoTaskRunner(
    309       content::BrowserThread::GetMessageLoopProxyForThread(
    310           content::BrowserThread::IO));
    311 
    312   CrasAudioHandler::Initialize(
    313       AudioDevicesPrefHandler::Create(g_browser_process->local_state()));
    314 
    315   // Start loading machine statistics here. StatisticsProvider::Shutdown()
    316   // will ensure that loading is aborted on early exit.
    317   bool load_oem_statistics = !StartupUtils::IsOobeCompleted();
    318   system::StatisticsProvider::GetInstance()->StartLoadingMachineStatistics(
    319       content::BrowserThread::GetMessageLoopProxyForThread(
    320           content::BrowserThread::FILE),
    321       load_oem_statistics);
    322 
    323   base::FilePath downloads_directory;
    324   CHECK(PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &downloads_directory));
    325   imageburner::BurnManager::Initialize(
    326       downloads_directory, g_browser_process->system_request_context());
    327 
    328   DeviceOAuth2TokenServiceFactory::Initialize();
    329 
    330   ChromeBrowserMainPartsLinux::PreMainMessageLoopRun();
    331 }
    332 
    333 void ChromeBrowserMainPartsChromeos::PreProfileInit() {
    334   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
    335   // -- immediately before Profile creation().
    336 
    337   // Now that the file thread exists we can record our stats.
    338   BootTimesLoader::Get()->RecordChromeMainStats();
    339   LoginEventRecorder::Get()->SetDelegate(BootTimesLoader::Get());
    340 
    341   // Trigger prefetching of ownership status.
    342   DeviceSettingsService::Get()->Load();
    343 
    344   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
    345   // -- just before CreateProfile().
    346 
    347   g_browser_process->platform_part()->InitializeChromeUserManager();
    348 
    349   // Initialize the screen locker now so that it can receive
    350   // LOGIN_USER_CHANGED notification from UserManager.
    351   if (KioskModeSettings::Get()->IsKioskModeEnabled())
    352     KioskModeIdleLogout::Initialize();
    353   else
    354     ScreenLocker::InitClass();
    355 
    356   // This forces the ProfileManager to be created and register for the
    357   // notification it needs to track the logged in user.
    358   g_browser_process->profile_manager();
    359 
    360   // AccessibilityManager and SystemKeyEventListener use InputMethodManager.
    361   input_method::Initialize();
    362 
    363   // ProfileHelper has to be initialized after UserManager instance is created.
    364   ProfileHelper::Get()->Initialize();
    365 
    366   // TODO(abarth): Should this move to InitializeNetworkOptions()?
    367   // Allow access to file:// on ChromeOS for tests.
    368   if (parsed_command_line().HasSwitch(::switches::kAllowFileAccess))
    369     ChromeNetworkDelegate::AllowAccessToAllFiles();
    370 
    371   // If kLoginUser is passed this indicates that user has already
    372   // logged in and we should behave accordingly.
    373   bool immediate_login =
    374       parsed_command_line().HasSwitch(switches::kLoginUser);
    375   if (immediate_login){
    376     // Redirects Chrome logging to the user data dir.
    377     logging::RedirectChromeLogging(parsed_command_line());
    378 
    379     // Load the default app order synchronously for restarting case.
    380     app_order_loader_.reset(
    381         new default_app_order::ExternalLoader(false /* async */));
    382   }
    383 
    384   if (!app_order_loader_) {
    385     app_order_loader_.reset(
    386         new default_app_order::ExternalLoader(true /* async */));
    387   }
    388 
    389   media::SoundsManager::Create();
    390 
    391   // Initialize magnification manager before ash tray is created. And this must
    392   // be placed after UserManager::SessionStarted();
    393   AccessibilityManager::Initialize();
    394 #if !defined(USE_ATHENA)
    395   // TODO(oshima): MagnificationManager/WallpaperManager depends on ash.
    396   // crbug.com/408733, crbug.com/408734.
    397   MagnificationManager::Initialize();
    398 
    399   // Add observers for WallpaperManager. This depends on PowerManagerClient,
    400   // TimezoneSettings and CrosSettings.
    401   WallpaperManager::Get()->AddObservers();
    402 #endif
    403 
    404   cros_version_loader_.GetVersion(VersionLoader::VERSION_FULL,
    405                                   base::Bind(&ChromeOSVersionCallback),
    406                                   &tracker_);
    407 
    408   // Make sure that wallpaper boot transition and other delays in OOBE
    409   // are disabled for tests and kiosk app launch by default.
    410   // Individual tests may enable them if they want.
    411   if (parsed_command_line().HasSwitch(::switches::kTestType) ||
    412       ShouldAutoLaunchKioskApp(parsed_command_line())) {
    413     WizardController::SetZeroDelays();
    414   }
    415 
    416   power_prefs_.reset(new PowerPrefs(
    417       DBusThreadManager::Get()->GetPowerPolicyController()));
    418 
    419   // In Aura builds this will initialize ash::Shell.
    420   ChromeBrowserMainPartsLinux::PreProfileInit();
    421 
    422   if (immediate_login) {
    423     const std::string user_id = login::CanonicalizeUserID(
    424         parsed_command_line().GetSwitchValueASCII(switches::kLoginUser));
    425     user_manager::UserManager* user_manager = user_manager::UserManager::Get();
    426 
    427     if (policy::IsDeviceLocalAccountUser(user_id, NULL) &&
    428         !user_manager->IsKnownUser(user_id)) {
    429       // When a device-local account is removed, its policy is deleted from disk
    430       // immediately. If a session using this account happens to be in progress,
    431       // the session is allowed to continue with policy served from an in-memory
    432       // cache. If Chrome crashes later in the session, the policy becomes
    433       // completely unavailable. Exit the session in that case, rather than
    434       // allowing it to continue without policy.
    435       chrome::AttemptUserExit();
    436       return;
    437     }
    438 
    439     // In case of multi-profiles --login-profile will contain user_id_hash.
    440     std::string user_id_hash =
    441         parsed_command_line().GetSwitchValueASCII(switches::kLoginProfile);
    442     user_manager->UserLoggedIn(user_id, user_id_hash, true);
    443     VLOG(1) << "Relaunching browser for user: " << user_id
    444             << " with hash: " << user_id_hash;
    445   }
    446 }
    447 
    448 class GuestLanguageSetCallbackData {
    449  public:
    450   explicit GuestLanguageSetCallbackData(Profile* profile) : profile(profile) {
    451   }
    452 
    453   // Must match SwitchLanguageCallback type.
    454   static void Callback(const scoped_ptr<GuestLanguageSetCallbackData>& self,
    455                        const std::string& locale,
    456                        const std::string& loaded_locale,
    457                        bool success);
    458 
    459   Profile* profile;
    460 };
    461 
    462 // static
    463 void GuestLanguageSetCallbackData::Callback(
    464     const scoped_ptr<GuestLanguageSetCallbackData>& self,
    465     const std::string& locale,
    466     const std::string& loaded_locale,
    467     bool success) {
    468   input_method::InputMethodManager* manager =
    469       input_method::InputMethodManager::Get();
    470   scoped_refptr<input_method::InputMethodManager::State> ime_state =
    471       manager->GetActiveIMEState();
    472   // Active layout must be hardware "login layout".
    473   // The previous one must be "locale default layout".
    474   // First, enable all hardware input methods.
    475   const std::vector<std::string>& input_methods =
    476       manager->GetInputMethodUtil()->GetHardwareInputMethodIds();
    477   for (size_t i = 0; i < input_methods.size(); ++i)
    478     ime_state->EnableInputMethod(input_methods[i]);
    479 
    480   // Second, enable locale based input methods.
    481   const std::string locale_default_input_method =
    482       manager->GetInputMethodUtil()->GetLanguageDefaultInputMethodId(
    483           loaded_locale);
    484   if (!locale_default_input_method.empty()) {
    485     PrefService* user_prefs = self->profile->GetPrefs();
    486     user_prefs->SetString(prefs::kLanguagePreviousInputMethod,
    487                           locale_default_input_method);
    488     ime_state->EnableInputMethod(locale_default_input_method);
    489   }
    490 
    491   // Finally, activate the first login input method.
    492   const std::vector<std::string>& login_input_methods =
    493       manager->GetInputMethodUtil()->GetHardwareLoginInputMethodIds();
    494   ime_state->ChangeInputMethod(login_input_methods[0],
    495                                false /* show_message */);
    496 }
    497 
    498 void SetGuestLocale(Profile* const profile) {
    499   scoped_ptr<GuestLanguageSetCallbackData> data(
    500       new GuestLanguageSetCallbackData(profile));
    501   scoped_ptr<locale_util::SwitchLanguageCallback> callback(
    502       new locale_util::SwitchLanguageCallback(base::Bind(
    503           &GuestLanguageSetCallbackData::Callback, base::Passed(data.Pass()))));
    504   user_manager::User* const user =
    505       ProfileHelper::Get()->GetUserByProfile(profile);
    506   UserSessionManager::GetInstance()->RespectLocalePreference(
    507       profile, user, callback.Pass());
    508 }
    509 
    510 void ChromeBrowserMainPartsChromeos::PostProfileInit() {
    511   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
    512   // -- just after CreateProfile().
    513 
    514   BootTimesLoader::Get()->OnChromeProcessStart();
    515 
    516   // Initialize the network portal detector for Chrome OS. The network
    517   // portal detector starts to listen for notifications from
    518   // NetworkStateHandler and initiates captive portal detection for
    519   // active networks. Should be called before call to CreateSessionManager,
    520   // because it depends on NetworkPortalDetector.
    521   NetworkPortalDetectorImpl::Initialize(
    522       g_browser_process->system_request_context());
    523   {
    524     NetworkPortalDetector* detector = NetworkPortalDetector::Get();
    525 #if defined(GOOGLE_CHROME_BUILD)
    526     bool is_official_build = true;
    527 #else
    528     bool is_official_build = false;
    529 #endif
    530     // Enable portal detector if EULA was previously accepted or if
    531     // this is an unofficial build.
    532     if (!is_official_build || StartupUtils::IsEulaAccepted())
    533       detector->Enable(true);
    534   }
    535 
    536   // Initialize input methods.
    537   input_method::InputMethodManager* manager =
    538       input_method::InputMethodManager::Get();
    539   UserSessionManager* session_manager = UserSessionManager::GetInstance();
    540   DCHECK(manager);
    541   DCHECK(session_manager);
    542 
    543   manager->SetState(session_manager->GetDefaultIMEState(profile()));
    544 
    545   bool is_running_test = parameters().ui_task != NULL;
    546   g_browser_process->platform_part()->InitializeSessionManager(
    547       parsed_command_line(), profile(), is_running_test);
    548   g_browser_process->platform_part()->SessionManager()->Start();
    549 
    550   // Guest user profile is never initialized with locale settings,
    551   // so we need special handling for Guest session.
    552   if (user_manager::UserManager::Get()->IsLoggedInAsGuest())
    553     SetGuestLocale(profile());
    554 
    555   // These observers must be initialized after the profile because
    556   // they use the profile to dispatch extension events.
    557   extension_system_event_observer_.reset(new ExtensionSystemEventObserver());
    558   if (KioskModeSettings::Get()->IsKioskModeEnabled()) {
    559     retail_mode_power_save_blocker_ = content::PowerSaveBlocker::Create(
    560         content::PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep,
    561         "Retail mode");
    562   }
    563 
    564   peripheral_battery_observer_.reset(new PeripheralBatteryObserver());
    565 
    566   renderer_freezer_.reset(
    567       new RendererFreezer(scoped_ptr<RendererFreezer::Delegate>(
    568           new FreezerCgroupProcessManager())));
    569   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kWakeOnPackets))
    570     light_bar_.reset(new LightBar());
    571 
    572   g_browser_process->platform_part()->InitializeAutomaticRebootManager();
    573 
    574   // This observer cannot be created earlier because it requires the shell to be
    575   // available.
    576   idle_action_warning_observer_.reset(new IdleActionWarningObserver());
    577 
    578   ChromeBrowserMainPartsLinux::PostProfileInit();
    579 }
    580 
    581 void ChromeBrowserMainPartsChromeos::PreBrowserStart() {
    582   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
    583   // -- just before MetricsService::LogNeedForCleanShutdown().
    584 
    585   // Start the external metrics service, which collects metrics from Chrome OS
    586   // and passes them to the browser process.
    587   external_metrics_ = new chromeos::ExternalMetrics;
    588   external_metrics_->Start();
    589 
    590 #if defined(USE_X11)
    591   // Listen for system key events so that the user will be able to adjust the
    592   // volume on the login screen, if Chrome is running on Chrome OS
    593   // (i.e. not Linux desktop), and in non-test mode.
    594   // Note: SystemKeyEventListener depends on the DBus thread.
    595   if (base::SysInfo::IsRunningOnChromeOS() &&
    596       !parameters().ui_task) {  // ui_task is non-NULL when running tests.
    597     SystemKeyEventListener::Initialize();
    598   }
    599 
    600   // Listen for XI_HierarchyChanged events. Note: if this is moved to
    601   // PreMainMessageLoopRun() then desktopui_PageCyclerTests fail for unknown
    602   // reasons, see http://crosbug.com/24833.
    603   XInputHierarchyChangedEventListener::GetInstance();
    604 
    605   // Start the CrOS input device UMA watcher
    606   DeviceUMA::GetInstance();
    607 #endif
    608 
    609   // -- This used to be in ChromeBrowserMainParts::PreMainMessageLoopRun()
    610   // -- immediately after ChildProcess::WaitForDebugger().
    611 
    612   // Start the out-of-memory priority manager here so that we give the most
    613   // amount of time for the other services to start up before we start
    614   // adjusting the oom priority.
    615   g_browser_process->platform_part()->oom_priority_manager()->Start();
    616 
    617   if (ui::ShouldDefaultToNaturalScroll()) {
    618     CommandLine::ForCurrentProcess()->AppendSwitch(
    619         chromeos::switches::kNaturalScrollDefault);
    620     system::InputDeviceSettings::Get()->SetTapToClick(true);
    621   }
    622 
    623   ChromeBrowserMainPartsLinux::PreBrowserStart();
    624 }
    625 
    626 void ChromeBrowserMainPartsChromeos::PostBrowserStart() {
    627   // These are dependent on the ash::Shell singleton already having been
    628   // initialized.
    629 #if !defined(USE_ATHENA)
    630   // TODO(oshima): Remove ash dependency in PowerButtonObserver.
    631   // crbug.com/408832.
    632   power_button_observer_.reset(new PowerButtonObserver);
    633 #endif
    634   data_promo_notification_.reset(new DataPromoNotification());
    635 
    636 #if !defined(USE_ATHENA)
    637   // TODO(oshima): Support accessibility on athena. crbug.com/408733.
    638   keyboard_event_rewriters_.reset(new EventRewriterController());
    639   keyboard_event_rewriters_->AddEventRewriter(
    640       scoped_ptr<ui::EventRewriter>(new KeyboardDrivenEventRewriter()));
    641   keyboard_event_rewriters_->AddEventRewriter(scoped_ptr<ui::EventRewriter>(
    642       new EventRewriter(ash::Shell::GetInstance()->sticky_keys_controller())));
    643   keyboard_event_rewriters_->Init();
    644 #endif
    645 
    646   ChromeBrowserMainPartsLinux::PostBrowserStart();
    647 }
    648 
    649 // Shut down services before the browser process, etc are destroyed.
    650 void ChromeBrowserMainPartsChromeos::PostMainMessageLoopRun() {
    651   BootTimesLoader::Get()->AddLogoutTimeMarker("UIMessageLoopEnded", true);
    652 
    653   g_browser_process->platform_part()->oom_priority_manager()->Stop();
    654 
    655   // Early wake-up of HID device service.
    656   InputServiceProxy::WarmUp();
    657 
    658   // Destroy the application name notifier for Kiosk mode.
    659   KioskModeIdleAppNameNotification::Shutdown();
    660 
    661   // Shutdown the upgrade detector for Chrome OS. The upgrade detector
    662   // stops monitoring changes from the update engine.
    663   if (UpgradeDetectorChromeos::GetInstance())
    664     UpgradeDetectorChromeos::GetInstance()->Shutdown();
    665 
    666   // Shutdown the network change notifier for Chrome OS. The network
    667   // change notifier stops monitoring changes from the power manager and
    668   // the network manager.
    669   if (NetworkChangeNotifierFactoryChromeos::GetInstance())
    670     NetworkChangeNotifierFactoryChromeos::GetInstance()->Shutdown();
    671 
    672   // Destroy UI related classes before destroying services that they may
    673   // depend on.
    674   data_promo_notification_.reset();
    675 
    676   // Tell DeviceSettingsService to stop talking to session_manager. Do not
    677   // shutdown DeviceSettingsService yet, it might still be accessed by
    678   // BrowserPolicyConnector (owned by g_browser_process).
    679   DeviceSettingsService::Get()->UnsetSessionManager();
    680 
    681   // We should remove observers attached to D-Bus clients before
    682   // DBusThreadManager is shut down.
    683   extension_system_event_observer_.reset();
    684   retail_mode_power_save_blocker_.reset();
    685   peripheral_battery_observer_.reset();
    686   power_prefs_.reset();
    687   renderer_freezer_.reset();
    688   light_bar_.reset();
    689 
    690   // Let the ScreenLocker unregister itself from SessionManagerClient before
    691   // DBusThreadManager is shut down.
    692   if (!KioskModeSettings::Get()->IsKioskModeEnabled())
    693     ScreenLocker::ShutDownClass();
    694 
    695   keyboard_event_rewriters_.reset();
    696 #if defined(USE_X11)
    697   // The XInput2 event listener needs to be shut down earlier than when
    698   // Singletons are finally destroyed in AtExitManager.
    699   XInputHierarchyChangedEventListener::GetInstance()->Stop();
    700 
    701   DeviceUMA::GetInstance()->Stop();
    702 
    703   // SystemKeyEventListener::Shutdown() is always safe to call,
    704   // even if Initialize() wasn't called.
    705   SystemKeyEventListener::Shutdown();
    706 #endif
    707 
    708   imageburner::BurnManager::Shutdown();
    709   CrasAudioHandler::Shutdown();
    710 
    711   // Detach D-Bus clients before DBusThreadManager is shut down.
    712   power_button_observer_.reset();
    713   idle_action_warning_observer_.reset();
    714 
    715 #if !defined(USE_ATHENA)
    716   MagnificationManager::Shutdown();
    717 #endif
    718 
    719   AccessibilityManager::Shutdown();
    720 
    721   media::SoundsManager::Shutdown();
    722 
    723   system::StatisticsProvider::GetInstance()->Shutdown();
    724 
    725   // Let the UserManager and WallpaperManager unregister itself as an observer
    726   // of the CrosSettings singleton before it is destroyed. This also ensures
    727   // that the UserManager has no URLRequest pending (see
    728   // http://crbug.com/276659).
    729   g_browser_process->platform_part()->user_manager()->Shutdown();
    730   WallpaperManager::Get()->Shutdown();
    731 
    732   // Let the AutomaticRebootManager unregister itself as an observer of several
    733   // subsystems.
    734   g_browser_process->platform_part()->ShutdownAutomaticRebootManager();
    735 
    736   // Clean up dependency on CrosSettings and stop pending data fetches.
    737   KioskAppManager::Shutdown();
    738 
    739   // Give BrowserPolicyConnectorChromeOS a chance to unregister any observers
    740   // on services that are going to be deleted later but before its Shutdown()
    741   // is called.
    742   g_browser_process->platform_part()->browser_policy_connector_chromeos()->
    743       PreShutdown();
    744 
    745   // We first call PostMainMessageLoopRun and then destroy UserManager, because
    746   // Ash needs to be closed before UserManager is destroyed.
    747   ChromeBrowserMainPartsLinux::PostMainMessageLoopRun();
    748 
    749   input_method::Shutdown();
    750 
    751   // Stops all in-flight OAuth2 token fetchers before the IO thread stops.
    752   DeviceOAuth2TokenServiceFactory::Shutdown();
    753 
    754   // Called after
    755   // ChromeBrowserMainPartsLinux::PostMainMessageLoopRun() to be
    756   // executed after execution of chrome::CloseAsh(), because some
    757   // parts of WebUI depends on NetworkPortalDetector.
    758   NetworkPortalDetector::Shutdown();
    759 
    760   g_browser_process->platform_part()->DestroyChromeUserManager();
    761 
    762   g_browser_process->platform_part()->ShutdownSessionManager();
    763 }
    764 
    765 void ChromeBrowserMainPartsChromeos::PostDestroyThreads() {
    766   // Destroy DBus services immediately after threads are stopped.
    767   dbus_services_.reset();
    768 
    769   ChromeBrowserMainPartsLinux::PostDestroyThreads();
    770 
    771   // Destroy DeviceSettingsService after g_browser_process.
    772   DeviceSettingsService::Shutdown();
    773 }
    774 
    775 }  //  namespace chromeos
    776