Media Source dispatches inband text tracks

media/webm/webm_stream_parser.h

Index: media/webm/webm_stream_parser.h
diff --git a/media/webm/webm_stream_parser.h b/media/webm/webm_stream_parser.h
index 74075424f4735a19df70f25744f7e80c18230a72..7573782d394b5a06afe4a1158d23b90c9b876ef9 100644
--- a/media/webm/webm_stream_parser.h
+++ b/media/webm/webm_stream_parser.h
@@ -27,6 +27,8 @@ class WebMStreamParser : public StreamParser {
                     const NewBuffersCB& audio_cb,
                     const NewBuffersCB& video_cb,
                     const NeedKeyCB& need_key_cb,
+                    const AddTextTrackCB& add_text_track_cb,
+                    //const NewBuffersCB& text_cb,
                     const NewMediaSegmentCB& new_segment_cb,
                     const base::Closure& end_of_segment_cb,
                     const LogCB& log_cb) OVERRIDE;
@@ -65,12 +67,25 @@ class WebMStreamParser : public StreamParser {
   // Fire needkey event through the |need_key_cb_|.
   void FireNeedKey(const std::string& key_id);
 
+  // To push text track cues up the media stack.
+  void OnTextBuffers(const StreamParser::BufferQueue& buffers,
+                     TextTrack* text_cb);
+  void OnTextBuffer(const StreamParserBuffer* buffer,
+                    TextTrack* text_cb);
+
   State state_;
   InitCB init_cb_;
   NewConfigCB config_cb_;
   NewBuffersCB audio_cb_;
   NewBuffersCB video_cb_;
   NeedKeyCB need_key_cb_;
+  AddTextTrackCB add_text_track_cb_;
+
+  // TODO(matthewjheaney): my interpretation of Aaron's comments
+  // We also need a ruling about element type: scoped_refptr?  etc

[acolwell GONE FROM CHROMIUM, 2013/05/10 02:22:08]

No need for scoped_refptr. You just need to make sure there is a
STLDeleteValues() (base/stl_util.h) in the destructor.

[Matthew Heaney (Chromium), 2013/05/10 05:21:08]

Done.

+  typedef std::map<int, TextTrack* > TextTrackMap;
+  TextTrackMap text_track_map_;
+
   NewMediaSegmentCB new_segment_cb_;
   base::Closure end_of_segment_cb_;
   LogCB log_cb_;