Mojify demuxers and allow running {Chunk/FFmpeg}Demuxer in a Utility Process

media/base/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_BASE_DEMUXER_H_
 #define MEDIA_BASE_DEMUXER_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 42 matching lines @@
 
   // Remove |text_stream| from the presentation.
   virtual void RemoveTextStream(DemuxerStream* text_stream) = 0;
 
  protected:
   virtual ~DemuxerHost();
 };
 
 class MEDIA_EXPORT Demuxer : public MediaResource {
  public:
+  enum LoadType {
+    LoadTypeURL = 0,
+    LoadTypeMediaSource = 1,
+    LoadTypeMediaStream = 2,
+    LoadTypeMax = LoadTypeMediaStream,
+  };
+
   // A new potentially encrypted stream has been parsed.
   // First parameter - The type of initialization data.
   // Second parameter - The initialization data associated with the stream.
   using EncryptedMediaInitDataCB =
       base::Callback<void(EmeInitDataType type,
                           const std::vector<uint8_t>& init_data)>;
 
   // Notifies demuxer clients that media track configuration has been updated
   // (e.g. the initial stream metadata has been parsed successfully, or a new
   // init segment has been parsed successfully in MSE case).
@@ skipping 77 matching lines @@
       const std::vector<MediaTrack::Id>& track_ids,
       base::TimeDelta currTime) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Demuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_DEMUXER_H_