| Index: tracing/tracing/ui/extras/about_tracing/profiling_view.html | 
| diff --git a/tracing/tracing/ui/extras/about_tracing/profiling_view.html b/tracing/tracing/ui/extras/about_tracing/profiling_view.html | 
| index 97ba57b878bf723c60b8fe504674d4871b9181f0..18afe64461f148a2b6bf522a8509ef433e6e4d52 100644 | 
| --- a/tracing/tracing/ui/extras/about_tracing/profiling_view.html | 
| +++ b/tracing/tracing/ui/extras/about_tracing/profiling_view.html | 
| @@ -92,7 +92,7 @@ tr.exportTo('tr.ui.e.about_tracing', function() { | 
| this.saveButton_ = this.querySelector('#save-button'); | 
|  | 
| var buttons = this.querySelector('x-timeline-view-buttons'); | 
| -      buttons.parentElement.removeChild(buttons); | 
| +      Polymer.dom(buttons.parentElement).removeChild(buttons); | 
| Polymer.dom(this.timelineView_.leftControls).appendChild(buttons); | 
| this.initButtons_(); | 
|  | 
|  |