Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/extensions/api/commands/command_service.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_EXTENSIONS_API_COMMANDS_COMMAND_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_API_COMMANDS_COMMAND_SERVICE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/common/extensions/command.h"
 #include "chrome/common/extensions/extension.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_source.h"
 
-class PrefService;
+class PrefServiceSyncable;
 class Profile;
 
 namespace base {
   class DictionaryValue;
 }
 
 namespace ui {
   class Accelerator;
 }
 
 namespace extensions {
 
 // This service keeps track of preferences related to extension commands
 // (assigning initial keybindings on install and removing them on deletion
 // and answers questions related to which commands are active.
 class CommandService : public ProfileKeyedService,
                        public content::NotificationObserver {
  public:
   // An enum specifying whether to fetch all extension commands or only active
   // ones.
   enum QueryType {
     ALL,
     ACTIVE_ONLY,
   };
 
   // Register prefs for keybinding.
-  static void RegisterUserPrefs(PrefService* user_prefs);
+  static void RegisterUserPrefs(PrefServiceSyncable* user_prefs);
 
   // Constructs a CommandService object for the given profile.
   explicit CommandService(Profile* profile);
   virtual ~CommandService();
 
   // Gets the command (if any) for the browser action of an extension given
   // its |extension_id|. The function consults the master list to see if
   // the command is active. Returns false if the extension has no browser
   // action. Returns false if the command is not active and |type| requested
   // is ACTIVE_ONLY. |command| contains the command found and |active| (if not
@@ skipping 97 matching lines @@
 
   // A weak pointer to the profile we are associated with. Not owned by us.
   Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(CommandService);
 };
 
 }  //  namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_COMMANDS_COMMAND_SERVICE_H_