Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/profiles/profile_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.
 
 // This class keeps track of the currently-active profiles in the runtime.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_
 
 #include <list>
@@ skipping 157 matching lines @@
   // creation. (Because directories can be removed, however, it may be the case
   // that at some point the list of numbered profiles is not continuous.)
   static void CreateMultiProfileAsync(
       const string16& name,
       const string16& icon_url,
       const CreateCallback& callback,
       chrome::HostDesktopType desktop_type,
       bool is_managed);
 
   // Register multi-profile related preferences in Local State.
-  static void RegisterPrefs(PrefService* prefs);
+  static void RegisterPrefs(PrefServiceSimple* prefs);
 
   // Returns a ProfileInfoCache object which can be used to get information
   // about profiles without having to load them from disk.
   ProfileInfoCache& GetProfileInfoCache();
 
   // Returns a ProfileShortcut Manager that enables the caller to create
   // profile specfic desktop shortcuts.
   ProfileShortcutManager* profile_shortcut_manager();
 
   // Schedules the profile at the given path to be deleted on shutdown.
@@ skipping 154 matching lines @@
 class ProfileManagerWithoutInit : public ProfileManager {
  public:
   explicit ProfileManagerWithoutInit(const FilePath& user_data_dir);
 
  protected:
   virtual void DoFinalInitForServices(Profile*, bool) OVERRIDE {}
   virtual void DoFinalInitLogging(Profile*) OVERRIDE {}
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_MANAGER_H_