| Index: tracing/tracing/ui/tracks/rect_track.html | 
| diff --git a/tracing/tracing/ui/tracks/rect_track.html b/tracing/tracing/ui/tracks/rect_track.html | 
| index fdd817fd78a1c6a00012bcf499bfaeb82c1993d1..4eaa323d820bf6612d21199f6d82112294ca3722 100644 | 
| --- a/tracing/tracing/ui/tracks/rect_track.html | 
| +++ b/tracing/tracing/ui/tracks/rect_track.html | 
| @@ -34,7 +34,7 @@ tr.exportTo('tr.ui.tracks', function() { | 
|  | 
| decorate: function(viewport) { | 
| tr.ui.tracks.Track.prototype.decorate.call(this, viewport); | 
| -      this.classList.add('rect-track'); | 
| +      Polymer.dom(this).classList.add('rect-track'); | 
| this.asyncStyle_ = false; | 
| this.rects_ = null; | 
|  | 
|  |