Add live mode detection in WebM MediaSource parser.

media/formats/mp4/mp4_stream_parser.cc

Index: media/formats/mp4/mp4_stream_parser.cc
diff --git a/media/formats/mp4/mp4_stream_parser.cc b/media/formats/mp4/mp4_stream_parser.cc
index 3136e1931d64435d705316d41f0ac79800cd1814..219ad190bb80ba7d25d9eb149ced6d6b85f4eb65 100644
--- a/media/formats/mp4/mp4_stream_parser.cc
+++ b/media/formats/mp4/mp4_stream_parser.cc
@@ -280,7 +280,7 @@ bool MP4StreamParser::ParseMoov(BoxReader* reader) {
                               coded_size, visible_rect, natural_size,
                               // No decoder-specific buffer needed for AVC;
                               // SPS/PPS are embedded in the video stream
-                              NULL, 0, is_video_track_encrypted_, false);
+                              NULL, 0, is_video_track_encrypted_, false, false);
       has_video_ = true;
       video_track_id_ = track->header.track_id;
     }
@@ -300,8 +300,10 @@ bool MP4StreamParser::ParseMoov(BoxReader* reader) {
     duration = kInfiniteDuration();
   }
 
-  if (!init_cb_.is_null())
-    base::ResetAndReturn(&init_cb_).Run(true, duration, base::Time(), false);
+  if (!init_cb_.is_null()) {
+    base::ResetAndReturn(&init_cb_)
+        .Run(true, duration, base::Time(), false, false);
+  }
 
   EmitNeedKeyIfNecessary(moov_->pssh);
   return true;