| Index: tracing/tracing/ui/base/pie_chart.html | 
| diff --git a/tracing/tracing/ui/base/pie_chart.html b/tracing/tracing/ui/base/pie_chart.html | 
| index 5edfd795219154d80cbdb9588e34564031201095..721bbc00dc58a43cf9833ef8a353c6e6a14d7a85 100644 | 
| --- a/tracing/tracing/ui/base/pie_chart.html | 
| +++ b/tracing/tracing/ui/base/pie_chart.html | 
| @@ -29,7 +29,7 @@ tr.exportTo('tr.ui.b', function() { | 
|  | 
| decorate: function() { | 
| ChartBase.prototype.decorate.call(this); | 
| -      this.classList.add('pie-chart'); | 
| +      Polymer.dom(this).classList.add('pie-chart'); | 
|  | 
| this.data_ = undefined; | 
| this.seriesKeys_ = undefined; | 
|  |