Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/ui/webui/ntp/foreign_session_handler.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_UI_WEBUI_NTP_FOREIGN_SESSION_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_FOREIGN_SESSION_HANDLER_H_
 
 #include <vector>
 
 #include "base/time.h"
 #include "chrome/browser/sessions/session_service.h"
 #include "chrome/browser/sync/glue/session_model_associator.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
-class PrefServiceSyncable;
+class PrefRegistrySyncable;
 
 namespace browser_sync {
 
 class ForeignSessionHandler : public content::WebUIMessageHandler,
                               public content::NotificationObserver {
  public:
   // Invalid value, used to note that we don't have a tab or window number.
   static const int kInvalidId = -1;
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
 
   ForeignSessionHandler();
   virtual ~ForeignSessionHandler() {}
 
-  static void RegisterUserPrefs(PrefServiceSyncable* prefs);
+  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
 
   static void OpenForeignSessionTab(content::WebUI* web_ui,
                                     const std::string& session_string_value,
                                     SessionID::id_type window_num,
                                     SessionID::id_type tab_id,
                                     const WindowOpenDisposition& disposition);
 
   static void OpenForeignSessionWindows(content::WebUI* web_ui,
                                         const std::string& session_string_value,
                                         SessionID::id_type window_num);
@@ skipping 48 matching lines @@
 
   // The Registrar used to register ForeignSessionHandler for notifications.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(ForeignSessionHandler);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_FOREIGN_SESSION_HANDLER_H_