Display::Run is a container for rect and text context.
<rdar://problem/55782430>
Created attachment 379725 [details] Patch
Created attachment 379730 [details] Patch
Comment on attachment 379730 [details] Patch Clearing flags on attachment: 379730 Committed r250429: <https://trac.webkit.org/changeset/250429>
All reviewed patches have been landed. Closing bug.