components: Move PrefRegistrySyncable into user_prefs namespace.

chrome/browser/ui/webui/ntp/most_visited_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_MOST_VISITED_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_MOST_VISITED_HANDLER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/common/cancelable_request.h"
 #include "chrome/browser/history/history_types.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 class GURL;
 class PageUsageData;
-class PrefRegistrySyncable;
 
 namespace base {
 class ListValue;
 class Value;
 }
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 // The handler for Javascript messages related to the "most visited" view.
 //
 // This class manages one preference:
 // - The URL blacklist: URLs we do not want to show in the thumbnails list.  It
 //   is a dictionary for quick access (it associates a dummy boolean to the URL
 //   string).
 class MostVisitedHandler : public content::WebUIMessageHandler,
                            public content::NotificationObserver {
  public:
 
@@ skipping 23 matching lines @@
 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   const std::vector<GURL>& most_visited_urls() const {
     return most_visited_urls_;
   }
 
-  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
 
  private:
   struct MostVisitedPage;
 
   // Send a request to the HistoryService to get the most visited pages.
   void StartQueryForMostVisited();
 
   // Sets pages_value_ from a format produced by TopSites.
   void SetPagesValueFromTopSites(const history::MostVisitedURLList& data);
 
@@ skipping 29 matching lines @@
   // Whether the user has viewed the 'most visited' pane.
   bool most_visited_viewed_;
 
   // Whether the user has performed a "tracked" action to leave the page or not.
   bool user_action_logged_;
 
   DISALLOW_COPY_AND_ASSIGN(MostVisitedHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_MOST_VISITED_HANDLER_H_