Reland: MSE: Relax the 'media segment must begin with keyframe' requirement

media/filters/chunk_demuxer.cc

Index: media/filters/chunk_demuxer.cc
diff --git a/media/filters/chunk_demuxer.cc b/media/filters/chunk_demuxer.cc
index 1afbc6d14d3f73cc242da7f1c00d2d81c6d4ddce..e931c3fd72c3eb2fafa672cd51883c7a4825af0b 100644
--- a/media/filters/chunk_demuxer.cc
+++ b/media/filters/chunk_demuxer.cc
@@ -160,11 +160,12 @@ size_t ChunkDemuxerStream::GetBufferedSize() const {
   return stream_->GetBufferedSize();
 }
 
-void ChunkDemuxerStream::OnNewMediaSegment(DecodeTimestamp start_timestamp) {
-  DVLOG(2) << "ChunkDemuxerStream::OnNewMediaSegment("
+void ChunkDemuxerStream::OnStartOfCodedFrameGroup(
+    DecodeTimestamp start_timestamp) {
+  DVLOG(2) << "ChunkDemuxerStream::OnStartOfCodedFrameGroup("
            << start_timestamp.InSecondsF() << ")";
   base::AutoLock auto_lock(lock_);
-  stream_->OnNewMediaSegment(start_timestamp);
+  stream_->OnStartOfCodedFrameGroup(start_timestamp);
 }
 
 bool ChunkDemuxerStream::UpdateAudioConfig(