Index: tracing/tracing/ui/timeline_viewport.html |
diff --git a/tracing/tracing/ui/timeline_viewport.html b/tracing/tracing/ui/timeline_viewport.html |
index 61b4e3c3ec0242ad7d2f8e96fb4e1f79abd2f381..1230fd6511edb9227599c49dfba8f6fb013072ad 100644 |
--- a/tracing/tracing/ui/timeline_viewport.html |
+++ b/tracing/tracing/ui/timeline_viewport.html |
@@ -120,7 +120,7 @@ tr.exportTo('tr.ui', function() { |
this.iframe_ = document.createElement('iframe'); |
this.iframe_.style.cssText = |
'position:absolute;width:100%;height:0;border:0;visibility:hidden;'; |
- this.parentEl_.appendChild(this.iframe_); |
+ Polymer.dom(this.parentEl_).appendChild(this.iframe_); |
this.iframe_.contentWindow.addEventListener('resize', this.onResize_); |
} |