If a `frameCount` is specified, the recording will stop by itself, so if we hit the `LastFrame`, there's no need to manually stop the recording at that point.
<rdar://problem/48248697>
Created attachment 371116 [details] Patch
Comment on attachment 371116 [details] Patch r=me
Comment on attachment 371116 [details] Patch Clearing flags on attachment: 371116 Committed r246015: <https://trac.webkit.org/changeset/246015>
All reviewed patches have been landed. Closing bug.