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

media/formats/mpeg/mpeg_audio_stream_parser_base.h

Index: media/formats/mpeg/mpeg_audio_stream_parser_base.h
diff --git a/media/formats/mpeg/mpeg_audio_stream_parser_base.h b/media/formats/mpeg/mpeg_audio_stream_parser_base.h
index 0b72be90cefead5bd122fff769e4fb4b4a8335e5..6514e3610d203c985dd3d99d67643f3c9505c3b0 100644
--- a/media/formats/mpeg/mpeg_audio_stream_parser_base.h
+++ b/media/formats/mpeg/mpeg_audio_stream_parser_base.h
@@ -39,7 +39,7 @@ class MEDIA_EXPORT MPEGAudioStreamParserBase : 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;
@@ -129,7 +129,8 @@ class MEDIA_EXPORT MPEGAudioStreamParserBase : public StreamParser {
   // If |end_of_segment| is set to true, then |end_of_segment_cb_| is called
   // after |new_buffers_cb_| to signal that these buffers represent the end of a
   // media segment.
-  // Returns true if the buffers are sent successfully.
+  // Returns true if the buffers (and the optional end of segment signal) are
+  // sent successfully.
   bool SendBuffers(BufferQueue* buffers, bool end_of_segment);
 
   State state_;
@@ -138,7 +139,7 @@ class MEDIA_EXPORT MPEGAudioStreamParserBase : public StreamParser {
   NewConfigCB config_cb_;
   NewBuffersCB new_buffers_cb_;
   NewMediaSegmentCB new_segment_cb_;
-  base::Closure end_of_segment_cb_;
+  EndMediaSegmentCB end_of_segment_cb_;
   scoped_refptr<MediaLog> media_log_;
 
   ByteQueue queue_;