Remove NOTIFICATION_SYSTEM_SETTING_CHANGED, switch CrosSettings to base::CallbackRegistry.

chrome/browser/chromeos/login/existing_user_controller.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
 #include "chrome/browser/chromeos/login/login_display.h"
 #include "chrome/browser/chromeos/login/login_performer.h"
 #include "chrome/browser/chromeos/login/login_utils.h"
 #include "chrome/browser/chromeos/login/user.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "chrome/browser/chromeos/settings/device_settings_service.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/rect.h"
 #include "url/gurl.h"
 
 namespace chromeos {
 
 class CrosSettings;
 class LoginDisplayHost;
@@ skipping 106 matching lines @@
   virtual void OnOffTheRecordLoginSuccess() OVERRIDE;
   virtual void OnPasswordChangeDetected() OVERRIDE;
   virtual void WhiteListCheckFailed(const std::string& email) OVERRIDE;
   virtual void PolicyLoadFailed() OVERRIDE;
   virtual void OnOnlineChecked(
       const std::string& username, bool success) OVERRIDE;
 
   // LoginUtils::Delegate implementation:
   virtual void OnProfilePrepared(Profile* profile) OVERRIDE;
 
+  // Called when device settings change.
+  void DeviceSettingsChanged();
+
   // Starts WizardController with the specified screen.
   void ActivateWizard(const std::string& screen_name);
 
   // Returns corresponding native window.
   gfx::NativeWindow GetNativeWindow() const;
 
   // Adds first-time login URLs.
   void InitializeStartUrls() const;
 
   // Show error message. |error_id| error message ID in resources.
@@ skipping 131 matching lines @@
 
   // Time when the signin screen was first displayed. Used to measure the time
   // from showing the screen until a successful login is performed.
   base::Time time_init_;
 
   // Timer for the interval to wait for the reboot after TPM error UI was shown.
   base::OneShotTimer<ExistingUserController> reboot_timer_;
 
   scoped_ptr<login::NetworkStateHelper> network_state_helper_;
 
+  scoped_ptr<CrosSettings::ObserverSubscription> show_user_names_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription> allow_new_user_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription> allow_guest_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription> users_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription>
+      local_account_auto_login_id_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription>
+      local_account_auto_login_delay_subscription_;
+
   FRIEND_TEST_ALL_PREFIXES(ExistingUserControllerTest, ExistingUserLogin);
 
   DISALLOW_COPY_AND_ASSIGN(ExistingUserController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EXISTING_USER_CONTROLLER_H_