Return unique_ptrs from base::ProcessMetrics.

chrome/browser/task_manager/os_resource_win.h

-// 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_OS_RESOURCE_WIN_H_
-#define CHROME_BROWSER_TASK_MANAGER_OS_RESOURCE_WIN_H_
-
-#include <stddef.h>
-
-#include "base/process/process_handle.h"
-
-namespace task_manager {
-
-// 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);
-
-}  // namespace task_manager
-
-#endif  // CHROME_BROWSER_TASK_MANAGER_OS_RESOURCE_WIN_H_