Decryptors can report kNoKey to WebMediaPlayer

media/filters/decoder_stream_traits.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_TRAITS_H_
 #define MEDIA_FILTERS_DECODER_STREAM_TRAITS_H_
 
 #include "media/base/demuxer_stream.h"
 #include "media/base/pipeline_status.h"
 
@@ skipping 12 matching lines @@
 
 template <>
 struct DecoderStreamTraits<DemuxerStream::AUDIO> {
   typedef AudioBuffer OutputType;
   typedef AudioDecoder DecoderType;
   typedef DecryptingAudioDecoder DecryptingDecoderType;
   typedef base::Callback<void(bool success)> StreamInitCB;
   typedef base::Callback<void(const scoped_refptr<OutputType>&)> OutputCB;
 
   static std::string ToString();
-  static void InitializeDecoder(DecoderType* decoder,
-                                DemuxerStream* stream,
-                                const PipelineStatusCB& status_cb,
-                                const OutputCB& output_cb);
+  static void InitializeDecoder(
+      DecoderType* decoder,
+      DemuxerStream* stream,
+      const PipelineStatusCB& status_cb,
+      const OutputCB& output_cb,
+      const base::Closure& waiting_for_encryption_key_cb);
   static bool NeedsBitstreamConversion(DecoderType* decoder) { return false; }
   static void ReportStatistics(const StatisticsCB& statistics_cb,
                                int bytes_decoded);
   static scoped_refptr<OutputType> CreateEOSOutput();
 };
 
 template <>
 struct DecoderStreamTraits<DemuxerStream::VIDEO> {
   typedef VideoFrame OutputType;
   typedef VideoDecoder DecoderType;
   typedef DecryptingVideoDecoder DecryptingDecoderType;
   typedef base::Callback<void(bool success)> StreamInitCB;
   typedef base::Callback<void(const scoped_refptr<OutputType>&)> OutputCB;
 
   static std::string ToString();
-  static void InitializeDecoder(DecoderType* decoder,
-                                DemuxerStream* stream,
-                                const PipelineStatusCB& status_cb,
-                                const OutputCB& output_cb);
+  static void InitializeDecoder(
+      DecoderType* decoder,
+      DemuxerStream* stream,
+      const PipelineStatusCB& status_cb,
+      const OutputCB& output_cb,
+      const base::Closure& waiting_for_encryption_key_cb);
   static bool NeedsBitstreamConversion(DecoderType* decoder);
   static void ReportStatistics(const StatisticsCB& statistics_cb,
                                int bytes_decoded);
   static scoped_refptr<OutputType> CreateEOSOutput();
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECODER_STREAM_TRAITS_H_