To support relative frames correctly 1) only expose for isolated tree clients 2) we need to support FloatRects in the attribute variants 3) also fix an issue where we weren't reserving capacity before using
<rdar://problem/59746529>
Created attachment 391602 [details] patch
Comment on attachment 391602 [details] patch Clearing flags on attachment: 391602 Committed r257294: <https://trac.webkit.org/changeset/257294>
All reviewed patches have been landed. Closing bug.