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

media/base/stream_parser.h

Index: media/base/stream_parser.h
diff --git a/media/base/stream_parser.h b/media/base/stream_parser.h
index b072e738549581f69d417e2c3106c59d1f2d64ed..f59e3d1bd5e5637420847ff6fcabdf3c9743fc74 100644
--- a/media/base/stream_parser.h
+++ b/media/base/stream_parser.h
@@ -99,9 +99,6 @@ class MEDIA_EXPORT StreamParser {
                               const BufferQueue&,
                               const TextBufferQueueMap&)> NewBuffersCB;
 
-  // Signals the beginning of a new media segment.
-  typedef base::Callback<void()> NewMediaSegmentCB;
-
   // A new potentially encrypted stream has been parsed.
   // First parameter - The type of the initialization data associated with the
   //                   stream.
@@ -123,7 +120,7 @@ class MEDIA_EXPORT StreamParser {
       const NewBuffersCB& new_buffers_cb,
       bool ignore_text_track,
       const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
-      const NewMediaSegmentCB& new_segment_cb,
+      const base::Closure& start_of_segment_cb,
       const base::Closure& end_of_segment_cb,
       const scoped_refptr<MediaLog>& media_log) = 0;