MSE: Record counts of detected MSE audio, video and text tracks

media/formats/webm/webm_tracks_parser.h

 // Copyright 2014 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_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_
 #define MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 60 matching lines @@
   const VideoDecoderConfig& video_decoder_config() {
     return video_decoder_config_;
   }
 
   typedef std::map<int, TextTrackConfig> TextTracks;
 
   const TextTracks& text_tracks() const {
     return text_tracks_;
   }
 
+  int detected_audio_track_count() const { return detected_audio_track_count_; }
+
+  int detected_video_track_count() const { return detected_video_track_count_; }
+
+  int detected_text_track_count() const { return detected_text_track_count_; }
+
   // Note: Calling media_tracks() method passes the ownership of the MediaTracks
   // object from WebMTracksParser to the caller (which is typically
   // WebMStreamParser object). So this method must be called only once, after
   // track parsing has been completed.
   scoped_ptr<MediaTracks> media_tracks() {
     CHECK(media_tracks_.get());
     return std::move(media_tracks_);
   }
 
  private:
@@ skipping 30 matching lines @@
   std::string audio_encryption_key_id_;
   std::string video_encryption_key_id_;
   scoped_refptr<MediaLog> media_log_;
 
   WebMAudioClient audio_client_;
   AudioDecoderConfig audio_decoder_config_;
 
   WebMVideoClient video_client_;
   VideoDecoderConfig video_decoder_config_;
 
+  int detected_audio_track_count_;
+  int detected_video_track_count_;
+  int detected_text_track_count_;
   scoped_ptr<MediaTracks> media_tracks_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMTracksParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_