VideoTrackRecorder: add support for more codecs on construction

content/renderer/media/media_recorder_handler.cc

Index: content/renderer/media/media_recorder_handler.cc
diff --git a/content/renderer/media/media_recorder_handler.cc b/content/renderer/media/media_recorder_handler.cc
index 0beedc394745310459719b71055efe2751366f60..4096d5092f9eb09f560ad63639645bc62937b4c5 100644
--- a/content/renderer/media/media_recorder_handler.cc
+++ b/content/renderer/media/media_recorder_handler.cc
@@ -165,7 +165,9 @@ bool MediaRecorderHandler::start(int timeslice) {
             &MediaRecorderHandler::OnEncodedVideo, weak_factory_.GetWeakPtr()));
 
     video_recorders_.push_back(new VideoTrackRecorder(
-        use_vp9_, video_track, on_encoded_video_cb, video_bits_per_second_));
+        use_vp9_ ? VideoTrackRecorder::CodecId::VP9
+                 : VideoTrackRecorder::CodecId::VP8,
+        video_track, on_encoded_video_cb, video_bits_per_second_));
   }
 
   if (use_audio_tracks) {