Decryptors can report kNoKey to WebMediaPlayer

media/filters/decoder_stream.h

 // Copyright 2014 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_DECODER_STREAM_H_
 #define MEDIA_FILTERS_DECODER_STREAM_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 43 matching lines @@
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       ScopedVector<Decoder> decoders,
       const scoped_refptr<MediaLog>& media_log);
   virtual ~DecoderStream();
 
   // Initializes the DecoderStream and returns the initialization result
   // through |init_cb|. Note that |init_cb| is always called asynchronously.
   void Initialize(DemuxerStream* stream,
                   const InitCB& init_cb,
                   const SetDecryptorReadyCB& set_decryptor_ready_cb,
-                  const StatisticsCB& statistics_cb);
+                  const StatisticsCB& statistics_cb,
+                  const base::Closure& waiting_for_decryption_key_cb);
 
   // Reads a decoded Output and returns it via the |read_cb|. Note that
   // |read_cb| is always called asynchronously. This method should only be
   // called after initialization has succeeded and must not be called during
   // pending Reset().
   void Read(const ReadCB& read_cb);
 
   // Resets the decoder, flushes all decoded outputs and/or internal buffers,
   // fires any existing pending read callback and calls |closure| on completion.
   // Note that |closure| is always called asynchronously. This method should
@@ skipping 88 matching lines @@
   void OnDecoderReset();
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   scoped_refptr<MediaLog> media_log_;
 
   State state_;
 
   StatisticsCB statistics_cb_;
   InitCB init_cb_;
+  base::Closure waiting_for_decryption_key_cb_;
 
   ReadCB read_cb_;
   base::Closure reset_cb_;
 
   DemuxerStream* stream_;
 
   scoped_ptr<DecoderSelector<StreamType> > decoder_selector_;
 
   scoped_ptr<Decoder> decoder_;
   // TODO(watk): When falling back from H/W decoding to S/W decoding,
@@ skipping 30 matching lines @@
 
 template <>
 int DecoderStream<DemuxerStream::AUDIO>::GetMaxDecodeRequests() const;
 
 typedef DecoderStream<DemuxerStream::VIDEO> VideoFrameStream;
 typedef DecoderStream<DemuxerStream::AUDIO> AudioBufferStream;
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECODER_STREAM_H_