Introduce PrefRegistrySyncable, simplifying PrefServiceSyncable.

chrome/browser/extensions/api/tabs/tabs_api.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_TABS_TABS_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/common/extensions/extension_resource.h"
 #include "chrome/common/extensions/user_script.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 
 class BackingStore;
 class GURL;
-class PrefServiceSyncable;
+class PrefRegistrySyncable;
 class SkBitmap;
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace content {
 class WebContents;
 }
 
@@ skipping 138 matching lines @@
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
   void GotLanguage(const std::string& language);
   content::NotificationRegistrar registrar_;
   DECLARE_EXTENSION_FUNCTION("tabs.detectLanguage", TABS_DETECTLANGUAGE)
 };
 class TabsCaptureVisibleTabFunction : public AsyncExtensionFunction,
                                   public content::NotificationObserver {
  public:
-  static void RegisterUserPrefs(PrefServiceSyncable* service);
+  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
 
  protected:
   enum ImageFormat {
     FORMAT_JPEG,
     FORMAT_PNG
   };
 
   // The default quality setting used when encoding jpegs.
   static const int kDefaultQuality;
 
@@ skipping 86 matching lines @@
 };
 
 class TabsInsertCSSFunction : public ExecuteCodeInTabFunction {
  private:
   virtual ~TabsInsertCSSFunction() {}
 
   DECLARE_EXTENSION_FUNCTION("tabs.insertCSS", TABS_INSERTCSS)
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_