Added stub MediaSourcePlayer for developing behind the flag

content/browser/media/android/browser_demuxer_android.h

 // Copyright 2013 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_DEMUXER_ANDROID_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_
 
+#define DISABLE_NON_THREAD_SAFE
 #include "base/id_map.h"
+#undef DISABLE_NON_THREAD_SAFE
+
+#include "base/synchronization/lock.h"
 #include "content/public/browser/browser_message_filter.h"
 #include "media/base/android/demuxer_android.h"
 
 namespace content {
 
 // Represents the browser process half of an IPC-based demuxer proxy.
 // It vends out media::DemuxerAndroid instances that are registered with an
 // end point in the renderer process.
 //
 // Refer to RendererDemuxerAndroid for the renderer process half.
@@ skipping 27 matching lines @@
   // IPC message handlers.
   void OnDemuxerReady(int demuxer_client_id,
                       const media::DemuxerConfigs& configs);
   void OnReadFromDemuxerAck(int demuxer_client_id,
                             const media::DemuxerData& data);
   void OnDemuxerSeekDone(int demuxer_client_id,
                          const base::TimeDelta& actual_browser_seek_time);
   void OnDurationChanged(int demuxer_client_id,
                          const base::TimeDelta& duration);
 
+  media::DemuxerAndroidClient* Lookup(int demuxer_client_id);
+
+
   IDMap<media::DemuxerAndroidClient> demuxer_clients_;
+  base::Lock lock_;
+  bool enable_media_thread_for_media_playback_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserDemuxerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_BROWSER_DEMUXER_ANDROID_H_