Allow multiple concurrent Decode() requests in VideoDecoder interface.

media/filters/fake_demuxer_stream.h

 // Copyright (c) 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 MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_
 #define MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "media/base/audio_decoder_config.h"
@@ skipping 31 matching lines @@
   void HoldNextRead();
 
   // Upon the next config change read, holds the read callback until
   // SatisfyRead() or Reset() is called. If there is no config change any more,
   // no read will be held.
   void HoldNextConfigChangeRead();
 
   // Satisfies the pending read with the next scheduled status and buffer.
   void SatisfyRead();
 
+  // Satisfies pending read request and then holds the following read.
+  void SatisfyReadAndHoldNext();
+
   // Satisfies the pending read (if any) with kAborted and NULL. This call
   // always clears |hold_next_read_|.
   void Reset();
 
  private:
   void UpdateVideoDecoderConfig();
   void DoRead();
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
@@ skipping 19 matching lines @@
   // Zero-based number indicating which read operation should be held. -1 means
   // no read shall be held.
   int read_to_hold_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeDemuxerStream);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FAKE_DEMUXER_STREAM_H_