Optimize RenderElement::rendererForRootBackground() a bit by not calling Document::body(). We are only interested in the child element with <body> tag but Document::body() first checks if a <frameset> child if present.
Created attachment 243096 [details] Patch
Comment on attachment 243096 [details] Patch r=me
Comment on attachment 243096 [details] Patch Clearing flags on attachment: 243096 Committed r177193: <http://trac.webkit.org/changeset/177193>
All reviewed patches have been landed. Closing bug.