Move scoped_ole_initializer.h to ui/base/win and clean up ole initialization/uninitialization.

ui/base/win/scoped_ole_initializer.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_OLE_INITIALIZER_H_
+#define UI_BASE_WIN_SCOPED_OLE_INITIALIZER_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "ui/base/ui_export.h"
+
+namespace ui {
+
+class UI_EXPORT ScopedOleInitializer {
+ public:
+  ScopedOleInitializer();
+  ~ScopedOleInitializer();
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ScopedOleInitializer);
+};
+
+}  // namespace
+
+#endif  // UI_BASE_WIN_SCOPED_OLE_INITIALIZER_H_