MSE: Use frame duration, if available, in LegacyFrameProcessor

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 <deque>
 #include <map>
 #include <string>
@@ skipping 271 matching lines @@
   ChunkDemuxerStream* CreateDemuxerStream(DemuxerStream::Type type);
 
   void OnNewTextTrack(ChunkDemuxerStream* text_stream,
                       const TextTrackConfig& config);
   void OnNewMediaSegment(const std::string& source_id,
                          base::TimeDelta start_timestamp);
 
   // Returns true if |source_id| is valid, false otherwise.
   bool IsValidId(const std::string& source_id) const;
 
-  // Increases |duration_| if |last_appended_buffer_timestamp| exceeds the
-  // current  |duration_|. The |duration_| is set to the end buffered timestamp
-  // of |stream|.
-  void IncreaseDurationIfNecessary(
-      base::TimeDelta last_appended_buffer_timestamp,
-      ChunkDemuxerStream* stream);
+  // Increases |duration_| to |new_duration|, if |new_duration| is higher.
+  void IncreaseDurationIfNecessary(base::TimeDelta new_duration);
 
   // Decreases |duration_| if the buffered region is less than |duration_| when
   // EndOfStream() is called.
   void DecreaseDurationIfNecessary();
 
   // Sets |duration_| to |new_duration|, sets |user_specified_duration_| to -1
   // and notifies |host_|.
   void UpdateDuration(base::TimeDelta new_duration);
 
   // Returns the ranges representing the buffered data in the demuxer.
@@ skipping 57 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_