Unify code to query D3D device object from ANGLE

ui/gl/gl_angle_util_win.h

+// Copyright 2016 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_GL_GL_ANGLE_UTIL_WIN_H_
+#define UI_GL_GL_ANGLE_UTIL_WIN_H_
+
+#include <d3d11.h>
+#include <d3d9.h>
+
+#include "base/win/scoped_comptr.h"
+#include "ui/gl/gl_export.h"
+
+namespace gl {
+
+GL_EXPORT base::win::ScopedComPtr<ID3D11Device>
+QueryD3D11DeviceObjectFromANGLE();
+GL_EXPORT base::win::ScopedComPtr<IDirect3DDevice9>
+QueryD3D9DeviceObjectFromANGLE();
+
+}  // namespace gl
+
+#endif  // UI_GL_GL_ANGLE_UTIL_WIN_H_