Revert 89664 - Cleanup in base/test.

base/test/scoped_locale.h

-// Copyright (c) 2011 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 BASE_TEST_SCOPED_LOCALE_H_
-#define BASE_TEST_SCOPED_LOCALE_H_
-#pragma once
-
-#include <string>
-
-#include "base/basictypes.h"
-
-namespace base {
-
-// Sets the given |locale| on construction, and restores the previous locale
-// on destruction.
-class ScopedLocale {
- public:
-  explicit ScopedLocale(const std::string& locale);
-  ~ScopedLocale();
-
- private:
-  std::string prev_locale_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedLocale);
-};
-
-}  // namespace base
-
-#endif  // BASE_TEST_SCOPED_LOCALE_H_