Log MediaSource parsing errors to the MediaLog so they can appear in chrome:media-internals.

media/filters/chunk_demuxer.h

 // Copyright (c) 2012 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_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 22 matching lines @@
   };
 
   typedef base::Callback<void(const std::string& type,
                               scoped_array<uint8> init_data,
                               int init_data_size)> NeedKeyCB;
 
   // |open_cb| Run when Initialize() is called to signal that the demuxer
   //   is ready to receive media data via AppenData().
   // |need_key_cb| Run when the demuxer determines that an encryption key is
   //   needed to decrypt the content.
-  ChunkDemuxer(const base::Closure& open_cb, const NeedKeyCB& need_key_cb);
+  // |log_cb| Run when parsing error messages need to be logged to the error
+  //   console.
+  ChunkDemuxer(const base::Closure& open_cb, const NeedKeyCB& need_key_cb,
+               const LogCB& log_cb);
 
   // Demuxer implementation.
   virtual void Initialize(DemuxerHost* host,
                           const PipelineStatusCB& cb) OVERRIDE;
   virtual void Stop(const base::Closure& callback) OVERRIDE;
   virtual void Seek(base::TimeDelta time, const PipelineStatusCB&  cb) OVERRIDE;
   virtual void OnAudioRendererDisabled() OVERRIDE;
   virtual scoped_refptr<DemuxerStream> GetStream(
       DemuxerStream::Type type) OVERRIDE;
   virtual base::TimeDelta GetStartTime() const OVERRIDE;
@@ skipping 110 matching lines @@
 
   // Returns the ranges representing the buffered data in the demuxer.
   Ranges<base::TimeDelta> GetBufferedRanges() const;
 
   mutable base::Lock lock_;
   State state_;
 
   DemuxerHost* host_;
   base::Closure open_cb_;
   NeedKeyCB need_key_cb_;
+  LogCB log_cb_;
 
   PipelineStatusCB init_cb_;
   PipelineStatusCB seek_cb_;
 
   scoped_refptr<ChunkDemuxerStream> audio_;
   scoped_refptr<ChunkDemuxerStream> video_;
 
   base::TimeDelta duration_;
 
   typedef std::map<std::string, StreamParser*> StreamParserMap;
@@ skipping 12 matching lines @@
   // removed with RemoveID() but can not be re-added (yet).
   std::string source_id_audio_;
   std::string source_id_video_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_