Deleted OS_WIN and all Windows specific files from base.

base/win/scoped_select_object.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_SCOPED_SELECT_OBJECT_H_
-#define BASE_WIN_SCOPED_SELECT_OBJECT_H_
-
-#include <windows.h>
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-
-namespace base {
-namespace win {
-
-// Helper class for deselecting object from DC.
-class ScopedSelectObject {
- public:
-  ScopedSelectObject(HDC hdc, HGDIOBJ object)
-      : hdc_(hdc),
-        oldobj_(SelectObject(hdc, object)) {
-    DCHECK(hdc_);
-    DCHECK(object);
-    DCHECK(oldobj_ != NULL && oldobj_ != HGDI_ERROR);
-  }
-
-  ~ScopedSelectObject() {
-    HGDIOBJ object = SelectObject(hdc_, oldobj_);
-    DCHECK((GetObjectType(oldobj_) != OBJ_REGION && object != NULL) ||
-           (GetObjectType(oldobj_) == OBJ_REGION && object != HGDI_ERROR));
-  }
-
- private:
-  HDC hdc_;
-  HGDIOBJ oldobj_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopedSelectObject);
-};
-
-}  // namespace win
-}  // namespace base
-
-#endif  // BASE_WIN_SCOPED_SELECT_OBJECT_H_