1 Tests that reparenting media elements also reparents ActiveDOMObject.
5 PASS: window.internals.activeDOMObjectCount(document) should be '2' and is.
6 PASS: window.internals.activeDOMObjectCount(iframe) should be '3' and is.
8 PASS: window.internals.activeDOMObjectCount(document) should be '3' and is.
9 PASS: window.internals.activeDOMObjectCount(iframe) should be '2' and is.