Test 'muted' IDL attribute after setting the Page's muted state. The Page's muted state should not affect the 'muted' IDL attribute.

EXPECTED (video.muted == 'false') OK
EXPECTED (video.muted == 'false') OK
RUN(video.muted = true)
EXPECTED (video.muted == 'true') OK
EXPECTED (video.muted == 'true') OK
END OF TEST