Combine the little functionality it has into its only client in WK1.
Created attachment 353476 [details] patch
Created attachment 353478 [details] patch
Created attachment 353479 [details] patch
Created attachment 353480 [details] patch
Created attachment 353489 [details] patch
Created attachment 353490 [details] patch
Created attachment 353491 [details] patch
Comment on attachment 353491 [details] patch Clearing flags on attachment: 353491 Committed r237636: <https://trac.webkit.org/changeset/237636>
All reviewed patches have been landed. Closing bug.
<rdar://problem/45700047>