NOT FOR LANDING Implement WebMediaSession

content/browser/media/android/browser_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_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_SESSION_MANAGER_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_SESSION_MANAGER_H_
 
 #include "base/macros.h"
+#include "base/memory/scoped_vector.h"
+#include "content/browser/media/android/media_session.h"
 
 namespace IPC {
 class Message;
 }
 
 namespace content {
 
 class RenderFrameHost;
 
 class BrowserMediaSessionManager {
  public:
   BrowserMediaSessionManager(RenderFrameHost* render_frame_host);
 
   // Message handlers.
   void OnActivate(int session_id, int request_id);
   void OnDeactivate(int session_id, int request_id);
 
   int GetRoutingID() const;
 
+  MediaSession* GetSession(int session_id);
+
+  void RemovePlayers(MediaSessionObserver* observer);
+  void RemovePlayer(MediaSessionObserver* observer, int player_id);
+  void OnPlayerPaused(MediaSessionObserver* observer, int player_id);
+
   bool Send(IPC::Message* msg);
 
  private:
   RenderFrameHost* const render_frame_host_;
+  ScopedVector<MediaSession> sessions_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMediaSessionManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_MEDIA_SESSION_MANAGER_H_