[iOS] Changing the mute state of autoplaying silent videos can interrupt system audio
<rdar://problem/103408312>
Pull request: https://github.com/WebKit/WebKit/pull/7701
Committed 258000@main (2ed67ffbd825): <https://commits.webkit.org/258000@main> Reviewed commits have been landed. Closing PR #7701 and removing active labels.