ntp: remove dead code for pinning

chrome/browser/ui/webui/ntp/most_visited_handler.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "chrome/browser/history/history_types.h"
 #include "content/browser/cancelable_request.h"
 #include "content/browser/webui/web_ui.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class GURL;
 class PageUsageData;
 class PrefService;
 
 namespace base {
 class ListValue;
 class Value;
 }
 
 // The handler for Javascript messages related to the "most visited" view.
 //
-// This class manages two preferences:
+// 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).
-// - Pinned URLs: This is a dictionary for the pinned URLs for the the most
-//   visited part of the new tab page. The key of the dictionary is a hash of
-//   the URL and the value is a dictionary with title, url and index.  This is
-//   owned by the PrefService.
 class MostVisitedHandler : public WebUIMessageHandler,
                            public content::NotificationObserver {
  public:
 
   MostVisitedHandler();
   virtual ~MostVisitedHandler();
 
   // WebUIMessageHandler override and implementation.
   virtual WebUIMessageHandler* Attach(WebUI* web_ui) OVERRIDE;
   virtual void RegisterMessages() OVERRIDE;
 
   // Callback for the "getMostVisited" message.
   void HandleGetMostVisited(const base::ListValue* args);
 
   // Callback for the "blacklistURLFromMostVisited" message.
   void HandleBlacklistURL(const base::ListValue* args);
 
   // Callback for the "removeURLsFromMostVisitedBlacklist" message.
   void HandleRemoveURLsFromBlacklist(const base::ListValue* args);
 
   // Callback for the "clearMostVisitedURLsBlacklist" message.
   void HandleClearBlacklist(const base::ListValue* args);
 
-  // Callback for the "addPinnedURL" message.
-  void HandleAddPinnedURL(const base::ListValue* args);
-
-  // Callback for the "removePinnedURL" message.
-  void HandleRemovePinnedURL(const base::ListValue* args);
-
   // 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(PrefService* prefs);
 
  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);
 
   // Callback for TopSites.
   void OnMostVisitedURLsAvailable(const history::MostVisitedURLList& data);
 
   // Puts the passed URL in the blacklist (so it does not show as a thumbnail).
   void BlacklistURL(const GURL& url);
 
-  // Returns the key used in url_blacklist_ and pinned_urls_ for the passed
-  // |url|.
+  // Returns the key used in url_blacklist_ for the passed |url|.
   std::string GetDictionaryKeyForURL(const std::string& url);
 
-  // Gets the page data for a pinned URL at a given index. This returns
-  // true if found.
-  bool GetPinnedURLAtIndex(int index, MostVisitedPage* page);
-
-  void AddPinnedURL(const MostVisitedPage& page, int index);
-  void RemovePinnedURL(const GURL& url);
-
   // Sends pages_value_ to the javascript side to and resets page_value_.
   void SendPagesValue();
 
   content::NotificationRegistrar registrar_;
 
   // Our consumer for the history service.
   CancelableRequestConsumerTSimple<PageUsageData*> cancelable_consumer_;
   CancelableRequestConsumer topsites_consumer_;
 
   // The most visited URLs, in priority order.
   // Only used for matching up clicks on the page to which most visited entry
   // was clicked on for metrics purposes.
   std::vector<GURL> most_visited_urls_;
 
   // We pre-fetch the first set of result pages.  This variable is false until
   // we get the first getMostVisited() call.
   bool got_first_most_visited_request_;
 
   // Keep the results of the db query here.
   scoped_ptr<base::ListValue> pages_value_;
 
   DISALLOW_COPY_AND_ASSIGN(MostVisitedHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_MOST_VISITED_HANDLER_H_