Move Singleton and related structs to namespace base

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 <stdint.h>
 
 #include <map>
@@ skipping 81 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest, Sort);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
                            SelectionAdaptsToSorting);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
                            EnsureNewPrimarySortColumn);
   FRIEND_TEST_ALL_PREFIXES(TaskManagerWindowControllerTest,
                            EnsureOneColumnVisible);
 
   // Obtain an instance via GetInstance().
   TaskManager();
-  friend struct DefaultSingletonTraits<TaskManager>;
+  friend struct base::DefaultSingletonTraits<TaskManager>;
 
   ~TaskManager();
 
   // The model used for gathering and processing task data. It is ref counted
   // because it is passed as a parameter to MessageLoop::InvokeLater().
   scoped_refptr<TaskManagerModel> model_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskManager);
 };
 
@@ skipping 434 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_