Removes pinning code from TopSites as we no longer need it.

chrome/browser/automation/testing_automation_provider.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_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_
 #define CHROME_BROWSER_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 826 matching lines @@
   void MoveNTPMostVisitedThumbnail(Browser* browser,
                                    base::DictionaryValue* args,
                                    IPC::Message* reply_message);
 
   // Removes a thumbnail from the NTP's Most Visited sites section.
   // Uses the JSON interface for input/output.
   void RemoveNTPMostVisitedThumbnail(Browser* browser,
                                      base::DictionaryValue* args,
                                      IPC::Message* reply_message);
 
-  // Unpins a thumbnail in the NTP's Most Visited sites section.
-  // Uses the JSON interface for input/output.
-  void UnpinNTPMostVisitedThumbnail(Browser* browser,
-                                    base::DictionaryValue* args,
-                                    IPC::Message* reply_message);
-
   // Restores all thumbnails that have been removed (i.e., blacklisted) from the
   // NTP's Most Visited sites section.
   // Uses the JSON interface for input/output.
   void RestoreAllNTPMostVisitedThumbnails(Browser* browser,
                                           base::DictionaryValue* args,
                                           IPC::Message* reply_message);
 
   // Kills the given renderer process and returns after the associated
   // RenderProcessHost receives notification of its closing.
   void KillRendererProcess(Browser* browser,
@@ skipping 707 matching lines @@
   ImportSettingsData import_settings_data_;
 
   // The automation event observer queue. It is lazily created when an observer
   // is added to avoid overhead when not needed.
   scoped_ptr<AutomationEventQueue> automation_event_queue_;
 
   DISALLOW_COPY_AND_ASSIGN(TestingAutomationProvider);
 };
 
 #endif  // CHROME_BROWSER_AUTOMATION_TESTING_AUTOMATION_PROVIDER_H_