Deleted OS_WIN and all Windows specific files from base.

base/win/i18n.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_WIN_I18N_H_
-#define BASE_WIN_I18N_H_
-
-#include <string>
-#include <vector>
-
-#include "base/base_export.h"
-#include "base/basictypes.h"
-
-namespace base {
-namespace win {
-namespace i18n {
-
-// Adds to |languages| the list of user preferred UI languages from MUI, if
-// available, falling-back on the user default UI language otherwise.  Returns
-// true if at least one language is added.
-BASE_EXPORT bool GetUserPreferredUILanguageList(
-    std::vector<std::wstring>* languages);
-
-// Adds to |languages| the list of thread, process, user, and system preferred
-// UI languages from MUI, if available, falling-back on the user default UI
-// language otherwise.  Returns true if at least one language is added.
-BASE_EXPORT bool GetThreadPreferredUILanguageList(
-    std::vector<std::wstring>* languages);
-
-}  // namespace i18n
-}  // namespace win
-}  // namespace base
-
-#endif  // BASE_WIN_I18N_H_