Index: tracing/tracing/ui/tracks/spacing_track.html |
diff --git a/tracing/tracing/ui/tracks/spacing_track.html b/tracing/tracing/ui/tracks/spacing_track.html |
index 583a4df8653f0abc7ab9818a880f1fc8fdf4377f..7b2fa2526274d0281a0f7e79c21ce4fa16425e18 100644 |
--- a/tracing/tracing/ui/tracks/spacing_track.html |
+++ b/tracing/tracing/ui/tracks/spacing_track.html |
@@ -27,7 +27,7 @@ tr.exportTo('tr.ui.tracks', function() { |
decorate: function(viewport) { |
tr.ui.tracks.Track.prototype.decorate.call(this, viewport); |
- this.classList.add('spacing-track'); |
+ Polymer.dom(this).classList.add('spacing-track'); |
this.heading_ = document.createElement('tr-ui-heading'); |
Polymer.dom(this).appendChild(this.heading_); |