This tests updating the SVG use element's shadow tree inside a event queue scope.
WebKit should not dispach any mutation events

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS subtreeModifiedFired is false
document.execCommand("usecss", false)
PASS subtreeModifiedFired is false
PASS successfullyParsed is true

TEST COMPLETE