We would like to eliminate Element::ensureShadowRoot(). Let's remove it from SVGUseElement.
Created attachment 151610 [details] Patch
Comment on attachment 151610 [details] Patch Looks trivial.
Comment on attachment 151610 [details] Patch Clearing flags on attachment: 151610 Committed r122389: <http://trac.webkit.org/changeset/122389>
All reviewed patches have been landed. Closing bug.