MSE: Log a warning if muxed AV media segment has no A or has no V block

media/formats/webm/webm_stream_parser.h

Index: media/formats/webm/webm_stream_parser.h
diff --git a/media/formats/webm/webm_stream_parser.h b/media/formats/webm/webm_stream_parser.h
index aeddb1faa6881bc37007dd5fba0596e9101de06c..128a5abf2a108411a0c9c5f39ee0bb9eb0be21b3 100644
--- a/media/formats/webm/webm_stream_parser.h
+++ b/media/formats/webm/webm_stream_parser.h
@@ -31,7 +31,7 @@ class WebMStreamParser : public StreamParser {
             bool ignore_text_tracks,
             const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
             const NewMediaSegmentCB& new_segment_cb,
-            const base::Closure& end_of_segment_cb,
+            const EndMediaSegmentCB& end_of_segment_cb,
             const scoped_refptr<MediaLog>& media_log) override;
   void Flush() override;
   bool Parse(const uint8_t* buf, int size) override;
@@ -76,7 +76,7 @@ class WebMStreamParser : public StreamParser {
   EncryptedMediaInitDataCB encrypted_media_init_data_cb_;
 
   NewMediaSegmentCB new_segment_cb_;
-  base::Closure end_of_segment_cb_;
+  EndMediaSegmentCB end_of_segment_cb_;
   scoped_refptr<MediaLog> media_log_;
 
   bool unknown_segment_size_;