Captions sometimes render at the wrong size when in fullscreen and PiP
<rdar://problem/58677864>
Created attachment 390094 [details] Patch
Created attachment 390113 [details] Patch
Comment on attachment 390113 [details] Patch Clearing flags on attachment: 390113 Committed r256060: <https://trac.webkit.org/changeset/256060>
All reviewed patches have been landed. Closing bug.