NOT FOR LANDING Implement WebMediaSession

content/renderer/media/android/renderer_media_session_manager.h

+// Copyright 2015 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 CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_SESSION_MANAGER_H_
+#define CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_SESSION_MANAGER_H_
+
+#include "base/basictypes.h"
+#include "content/public/renderer/render_frame_observer.h"
+
+namespace content {
+
+class RendererMediaSessionManager : public RenderFrameObserver {
+ public:
+  RendererMediaSessionManager(RenderFrame* render_frame);
+  ~RendererMediaSessionManager();
+
+  void Activate(int session_id);
+  void Deactivate(int session_id);
+
+ private:
+  int next_media_session_id_;
+
+  DISALLOW_COPY_AND_ASSIGN(RendererMediaSessionManager);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_MEDIA_SESSION_MANAGER_H_