Merge 143765 - Ensure media's buffered ranges always have a range that includes currentTime.

media/filters/chunk_demuxer.cc

Index: media/filters/chunk_demuxer.cc
===================================================================
--- media/filters/chunk_demuxer.cc	(revision 145962)
+++ media/filters/chunk_demuxer.cc	(working copy)
@@ -139,6 +139,9 @@
 
 class ChunkDemuxerStream : public DemuxerStream {
  public:
+  // Only present in 1180 branch to fix compile breakage; stubbed out.
+  virtual Ranges<base::TimeDelta> GetBufferedRanges() OVERRIDE;
+
   typedef std::deque<scoped_refptr<StreamParserBuffer> > BufferQueue;
   typedef std::deque<ReadCB> ReadCBQueue;
   typedef std::deque<base::Closure> ClosureQueue;
@@ -217,6 +220,10 @@
   DISALLOW_IMPLICIT_CONSTRUCTORS(ChunkDemuxerStream);
 };
 
+Ranges<base::TimeDelta> ChunkDemuxerStream::GetBufferedRanges() {
+  return Ranges<base::TimeDelta>();
+}
+
 ChunkDemuxerStream::ChunkDemuxerStream(const AudioDecoderConfig& audio_config)
     : type_(AUDIO),
       state_(RETURNING_DATA_FOR_READS),