Move a bunch of windows stuff from ui/base/win to ui/gfx/win

ui/base/win/scoped_set_map_mode.h

-// Copyright (c) 2012 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 UI_BASE_WIN_SCOPED_SET_MAP_MODE_H_
-#define UI_BASE_WIN_SCOPED_SET_MAP_MODE_H_
-
-#include <windows.h>
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-namespace ui {
-
-// Helper class for setting and restore the map mode on a DC.
-class ScopedSetMapMode {
- public:
-  ScopedSetMapMode(HDC hdc, int map_mode)
-      : hdc_(hdc),
-        old_map_mode_(SetMapMode(hdc, map_mode)) {
-    DCHECK(hdc_);
-    DCHECK_NE(map_mode, 0);
-    DCHECK_NE(old_map_mode_, 0);
-  }
-
-  ~ScopedSetMapMode() {
-    const int mode = SetMapMode(hdc_, old_map_mode_);
-    DCHECK_NE(mode, 0);
-  }
-
- private:
-  HDC hdc_;
-  int old_map_mode_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedSetMapMode);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_WIN_SCOPED_SET_MAP_MODE_H_