| Index: tracing/tracing/ui/tracks/stacked_bars_track.html | 
| diff --git a/tracing/tracing/ui/tracks/stacked_bars_track.html b/tracing/tracing/ui/tracks/stacked_bars_track.html | 
| index 13dc22df37badae9de8e5989208c2cad35e2d140..762a16f95e8891622f7f078e412639b8af822a81 100644 | 
| --- a/tracing/tracing/ui/tracks/stacked_bars_track.html | 
| +++ b/tracing/tracing/ui/tracks/stacked_bars_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('stacked-bars-track'); | 
| +      Polymer.dom(this).classList.add('stacked-bars-track'); | 
| this.objectInstance_ = null; | 
|  | 
| this.heading_ = document.createElement('tr-ui-heading'); | 
|  |