Remove "View Background Pages".

chrome/browser/task_manager/task_manager.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_TASK_MANAGER_TASK_MANAGER_H_
 #define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 65 matching lines @@
   // OnModelChanged() events.
   void ModelChanged();
 
   // Returns the singleton instance (and initializes it if necessary).
   static TaskManager* GetInstance();
 
   TaskManagerModel* model() const { return model_.get(); }
 
   void OpenAboutMemory(chrome::HostDesktopType desktop_type);
 
-  // Returns the number of background pages that will be displayed in the
-  // TaskManager. Used by the wrench menu code to display a count of background
-  // pages in the "View Background Pages" menu item.
-  static int GetBackgroundPageCount();
-
  private:
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Basic);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, Resources);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerTest, RefreshCalled);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Init);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Sort);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
                            SelectionAdaptsToSorting);
 
   // Obtain an instance via GetInstance().
@@ skipping 462 matching lines @@
   // All per-Resource values are stored here.
   mutable PerResourceCache per_resource_cache_;
 
   // All per-Process values are stored here.
   mutable PerProcessCache per_process_cache_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManagerModel);
 };
 
 #endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_H_