<rdar://problem/63264848>
Created attachment 399487 [details] proposed patch.
Comment on attachment 399487 [details] proposed patch. r=me.
Comment on attachment 399487 [details] proposed patch. on second thought withholding.
Comment on attachment 399487 [details] proposed patch. nvm misunderstood.
The red EWS bots is because I landed the patch just as Keith r-ed it, before he r+ed it again. Hence, it appears to be a merge collision to the bots though it is not. Landed in r261747: <http://trac.webkit.org/r261747>.