Rename MediaPlayer::setVisible to MediaPlayer::setPageIsVisible
<rdar://problem/81857023>
Created attachment 435675 [details] Patch
Created attachment 435849 [details] Patch for landing
Committed r281227 (240664@main): <https://commits.webkit.org/240664@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 435849 [details].