Change media MessageLoopProxy usage to SingleThreadTaskRunners.

content/renderer/media/android/renderer_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_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_
 
 #include "base/atomic_sequence_num.h"
 #include "base/id_map.h"
 #include "ipc/message_filter.h"
 #include "media/base/android/demuxer_stream_player_params.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 namespace content {
 
 class MediaSourceDelegate;
 class ThreadSafeSender;
 
 // Represents the renderer process half of an IPC-based implementation of
 // media::DemuxerAndroid.
 //
@@ skipping 43 matching lines @@
   void OnReadFromDemuxer(int demuxer_client_id,
                          media::DemuxerStream::Type type);
   void OnDemuxerSeekRequest(int demuxer_client_id,
                             const base::TimeDelta& time_to_seek,
                             bool is_browser_seek);
 
   base::AtomicSequenceNumber next_demuxer_client_id_;
 
   IDMap<MediaSourceDelegate> delegates_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
-  scoped_refptr<base::MessageLoopProxy> media_message_loop_;
+  scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererDemuxerAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_RENDERER_DEMUXER_ANDROID_H_