Test that video play(), pause() and webkitEnterFullScreen() should not work unless a user clicked on the play button.

EVENT(canplaythrough)

* No user gesture initiated
RUN(video.play())
TEST(video.webkitEnterFullScreen()) THROWS(DOMException.INVALID_STATE_ERR) OK
EXPECTED (video.paused == 'true') OK

* User gesture initiated
EVENT(playing)
RUN(video.pause())
EVENT(pause)
EXPECTED (video.paused == 'true') OK
RUN(video.webkitEnterFullScreen())
END OF TEST

