Port MediaKeySystemAccess & MediaCapabilities to the HTML event loop instead of using a global Timer. Most of the media code has been ported to the HTML event loop already.
Created attachment 430584 [details] Patch
Committed r278481 (238499@main): <https://commits.webkit.org/238499@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 430584 [details].
<rdar://problem/78879957>