| Index: tracing/tracing/ui/tracks/cpu_track.html | 
| diff --git a/tracing/tracing/ui/tracks/cpu_track.html b/tracing/tracing/ui/tracks/cpu_track.html | 
| index 0bb4f1fdf442f0a3f87941cebd3ba41b4ddaeae6..dd4dfe0c97a8bd20f6802ce96364be74348c65e2 100644 | 
| --- a/tracing/tracing/ui/tracks/cpu_track.html | 
| +++ b/tracing/tracing/ui/tracks/cpu_track.html | 
| @@ -28,7 +28,7 @@ tr.exportTo('tr.ui.tracks', function() { | 
|  | 
| decorate: function(viewport) { | 
| tr.ui.tracks.ContainerTrack.prototype.decorate.call(this, viewport); | 
| -      this.classList.add('cpu-track'); | 
| +      Polymer.dom(this).classList.add('cpu-track'); | 
| this.detailedMode_ = true; | 
| }, | 
|  | 
|  |