Create task_manager namespace and wrap classes related to TaskManager with it.

chrome/browser/task_manager/task_manager_os_resources_win.h

Index: chrome/browser/task_manager/task_manager_os_resources_win.h
diff --git a/chrome/browser/task_manager/task_manager_os_resources_win.h b/chrome/browser/task_manager/task_manager_os_resources_win.h
deleted file mode 100644
index f0e7887bab318fefbb60297eaef116078d248f8e..0000000000000000000000000000000000000000
--- a/chrome/browser/task_manager/task_manager_os_resources_win.h
+++ /dev/null
@@ -1,20 +0,0 @@
-// Copyright 2013 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_OS_RESOURCES_WIN_H_
-#define CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_OS_RESOURCES_WIN_H_
-
-#include "base/process_util.h"
-
-// Get the current number of GDI handles in use (and peak on >= Win7+).
-void GetWinGDIHandles(base::ProcessHandle process,
-                      size_t* current,
-                      size_t* peak);
-
-// Get the current number of USER handles in use (and peak on >= Win7).
-void GetWinUSERHandles(base::ProcessHandle process,
-                       size_t* current,
-                       size_t* peak);
-
-#endif  // CHROME_BROWSER_TASK_MANAGER_TASK_MANAGER_OS_RESOURCES_WIN_H_