WidthIterator::m_finalRoundingWidth is always 0
Created attachment 406247 [details] Patch
mac-wk1 failure is unrelated.
Created attachment 406254 [details] Patch
Comment on attachment 406254 [details] Patch Not sure why review? was not set on this, but this looks great and all tests are passing.
Committed r265412: <https://trac.webkit.org/changeset/265412>
<rdar://problem/66739665>