to precomputeVerticalPositionForBoxAndAncestors
<rdar://problem/59919467>
Created attachment 392061 [details] Patch
Created attachment 392064 [details] Patch
Comment on attachment 392064 [details] Patch Clearing flags on attachment: 392064 Committed r257685: <https://trac.webkit.org/changeset/257685>
All reviewed patches have been landed. Closing bug.