[DO NOT COMMIT] Initial MediaPlayerRenderer plumbing and basic features

media/filters/frame_processor.cc

Index: media/filters/frame_processor.cc
diff --git a/media/filters/frame_processor.cc b/media/filters/frame_processor.cc
index b70b405d6b59a43414bc97a5b83cf42e0379a7db..c8e6a03d84a319d0f9cf70041d3fb8cbd362bd1b 100644
--- a/media/filters/frame_processor.cc
+++ b/media/filters/frame_processor.cc
@@ -574,6 +574,7 @@ bool FrameProcessor::ProcessFrame(
         track_id = frame->track_id();
         break;
       case DemuxerStream::UNKNOWN:
+      case DemuxerStream::URL:
       case DemuxerStream::NUM_TYPES:
         DCHECK(false) << ": Invalid frame type " << frame->type();
         return false;