[DO NOT COMMIT] Initial MediaPlayerRenderer plumbing and basic features

media/mojo/services/mojo_media_player_renderer_helper.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 MEDIA_MOJO_SERVICES_MOJO_MEDIA_PLAYER_RENDERER_HELPER_H_
+#define MEDIA_MOJO_SERVICES_MOJO_MEDIA_PLAYER_RENDERER_HELPER_H_
+
+#include "content/public/browser/render_frame_host.h"
+#include "media/mojo/interfaces/renderer.mojom.h"
+
+namespace media {
+
+// Helper class to instantiate a Mojo Renderer wrapping a MediaPlayerRenderer
+class MEDIA_EXPORT MojoMediaPlayerRendererHelper {
+ public:
+  static void CreateMediaPlayerRenderer(
+      content::RenderFrameHost* render_frame_host,
+      mojo::InterfaceRequest<mojom::Renderer> request);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_MOJO_SERVICES_MOJO_MEDIA_PLAYER_RENDERER_HELPER_H_