Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/chromeos/login/user_manager.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_USER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_
 
 #include <string>
 
 #include "base/memory/singleton.h"
 #include "chrome/browser/chromeos/login/user.h"
 
-class PrefService;
+class PrefServiceSimple;
 
 namespace chromeos {
 
 class RemoveUserDelegate;
 class UserImageManager;
 
 // Base class for UserManagerImpl - provides a mechanism for discovering users
 // who have logged into this Chrome OS device before and updating that list.
 class UserManager {
  public:
@@ skipping 29 matching lines @@
   //   }
   //   virtual void TearDown() {
   //     ...
   //     UserManager::Set(old_user_manager_);
   //   }
   //   scoped_ptr<MockUserManager> mock_user_manager_;
   //   UserManager* old_user_manager_;
   static UserManager* Set(UserManager* mock);
 
   // Registers user manager preferences.
-  static void RegisterPrefs(PrefService* local_state);
+  static void RegisterPrefs(PrefServiceSimple* local_state);
 
   // Indicates imminent shutdown, allowing the UserManager to remove any
   // observers it has registered.
   virtual void Shutdown() = 0;
 
   virtual ~UserManager();
 
   virtual UserImageManager* GetUserImageManager() = 0;
 
   // Returns a list of users who have logged into this device previously. This
@@ skipping 128 matching lines @@
 
   virtual void AddObserver(Observer* obs) = 0;
   virtual void RemoveObserver(Observer* obs) = 0;
 
   virtual void NotifyLocalStateChanged() = 0;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_MANAGER_H_