Add FakeVideoDecoder.

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 17 matching lines @@
                     bool is_encrypted);
   virtual ~FakeDemuxerStream();
 
   // DemuxerStream implementation.
   virtual void Read(const ReadCB& read_cb) OVERRIDE;
   virtual const AudioDecoderConfig& audio_decoder_config() OVERRIDE;
   virtual const VideoDecoderConfig& video_decoder_config() OVERRIDE;
   virtual Type type() OVERRIDE;
   virtual void EnableBitstreamConverter() OVERRIDE;
 
+  int num_buffers_returned() const { return num_buffers_returned_; }
+
   // Upon the next read, holds the read callback until SatisfyRead() or Reset()
   // is called.
   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 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::MessageLoopProxy> message_loop_;
 
   int num_configs_left_;
   int num_buffers_in_one_config_;
   bool is_encrypted_;
 
   // Number of frames left with the current decoder config.
   int num_buffers_left_in_current_config_;
 
+  int num_buffers_returned_;
+
   base::TimeDelta current_timestamp_;
   base::TimeDelta duration_;
 
   AudioDecoderConfig audio_decoder_config_;
 
   gfx::Size next_coded_size_;
   VideoDecoderConfig video_decoder_config_;
 
   ReadCB read_cb_;
-  bool hold_next_read_;
+
+  int next_read_num_;
+  // 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_