also we should transition from "estimated" to "pre-computed"
<rdar://problem/59288539>
Created attachment 390180 [details] Patch
Created attachment 390192 [details] Patch
Comment on attachment 390192 [details] Patch Clearing flags on attachment: 390192 Committed r256099: <https://trac.webkit.org/changeset/256099>
All reviewed patches have been landed. Closing bug.