Remove NOTIFICATION_SYSTEM_SETTING_CHANGED, switch CrosSettings to base::CallbackRegistry.

chrome/browser/chromeos/app_mode/kiosk_app_manager.h

 // Copyright 2013 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_APP_MODE_KIOSK_APP_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_MANAGER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/lazy_instance.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/observer_list.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_data_delegate.h"
 #include "chrome/browser/chromeos/policy/enterprise_install_attributes.h"
-#include "content/public/browser/notification_observer.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
 #include "ui/gfx/image/image_skia.h"
 
 class PrefRegistrySimple;
 
 namespace base {
 class RefCountedString;
 }
 
 namespace chromeos {
 
 class KioskAppData;
 class KioskAppManagerObserver;
 
 // KioskAppManager manages cached app data.
-class KioskAppManager : public content::NotificationObserver,
-                        public KioskAppDataDelegate {
+class KioskAppManager : public KioskAppDataDelegate {
  public:
   enum ConsumerKioskModeStatus {
     // Consumer kiosk mode can be enabled on this machine.
     CONSUMER_KIOSK_MODE_CONFIGURABLE,
     // Consumer kiosk is enabled on this machine.
     CONSUMER_KIOSK_MODE_ENABLED,
     // Consumer kiosk mode is disabled ans cannot any longer be enabled on
     // this machine.
     CONSUMER_KIOSK_MODE_DISABLED,
   };
@@ skipping 100 matching lines @@
 
   // Stop all data loading and remove its dependency on CrosSettings.
   void CleanUp();
 
   // Gets KioskAppData for the given app id.
   const KioskAppData* GetAppData(const std::string& app_id) const;
 
   // Update app data |apps_| based on CrosSettings.
   void UpdateAppData();
 
-  // content::NotificationObserver overrides:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
   // KioskAppDataDelegate overrides:
   virtual void GetKioskAppIconCacheDir(base::FilePath* cache_dir) OVERRIDE;
   virtual void OnKioskAppDataChanged(const std::string& app_id) OVERRIDE;
   virtual void OnKioskAppDataLoadFailure(const std::string& app_id) OVERRIDE;
 
   // Callback for EnterpriseInstallAttributes::LockDevice() during
   // EnableConsumerModeKiosk() call.
   void OnLockDevice(
       const EnableKioskModeCallback& callback,
       policy::EnterpriseInstallAttributes::LockResult result);
@@ skipping 11 matching lines @@
   // Reads/writes auto login state from/to local state.
   AutoLoginState GetAutoLoginState() const;
   void SetAutoLoginState(AutoLoginState state);
 
   // True if machine ownership is already established.
   bool ownership_established_;
   ScopedVector<KioskAppData> apps_;
   std::string auto_launch_app_id_;
   ObserverList<KioskAppManagerObserver, true> observers_;
 
+  scoped_ptr<CrosSettings::ObserverSubscription>
+      local_accounts_subscription_;
+  scoped_ptr<CrosSettings::ObserverSubscription>
+      local_account_auto_login_id_subscription_;
+
   DISALLOW_COPY_AND_ASSIGN(KioskAppManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_APP_MODE_KIOSK_APP_MANAGER_H_