Delete FileAutoDeleter.

chrome/test/file_test_utils.h

-// Copyright (c) 2010 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_TEST_FILE_TEST_UTILS_H_
-#define CHROME_TEST_FILE_TEST_UTILS_H_
-#pragma once
-
-#include "base/file_path.h"
-#include "base/file_util.h"
-
-// Auto deletes file/folder when it goes out-of-scope. This is useful for tests
-// to cleanup files/folder automatically.
-class FileAutoDeleter {
- public:
-  explicit FileAutoDeleter(const FilePath& path);
-  ~FileAutoDeleter();
-
-  const FilePath& path() { return path_; }
- private:
-  FilePath path_;
-  DISALLOW_COPY_AND_ASSIGN(FileAutoDeleter);
-};
-
-#endif  // CHROME_TEST_FILE_TEST_UTILS_H_