Add TaskManagerEndProcessEnabled policy

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 36 matching lines @@
 
 namespace net {
 class URLRequest;
 }
 
 // This class is a singleton.
 class TaskManager {
  public:
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
+  // Returns true if the user is allowed to end processes.
+  static bool IsEndProcessEnabled();
+
   // Returns true if the process at the specified index is the browser process.
   bool IsBrowserProcess(int index) const;
 
   // Terminates the process at the specified index.
   void KillProcess(int index);
 
   // Activates the browser tab associated with the process in the specified
   // index.
   void ActivateProcess(int index);
 
@@ skipping 482 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_