Automatic update from web-platform-tests[MIX]: Improve Safari support. (#8015)
Safari doesn't generate events in quite the same way as Firefox and Chrome, but
those events also aren't relevant to the MIX tests. It also doesn't like an
explicit 'type=video/ogg' declaration in '<source>' elements. This patch shifts
to a timeout model to ensure that even if events aren't triggered, we still
check whether or not the resource was loaded from the server.
wpt-commits: 5cddbd4919d12781dfc46e928547132fa7402d1c
wpt-pr: 8015
wpt-commits: 5cddbd4919d12781dfc46e928547132fa7402d1c
wpt-pr: 8015
78c22bcad9