Check that FontFaceSet.load() does not trigger a style recalc

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

PASS internals.updateStyleAndReturnAffectedElementCount() is 1
PASS getComputedStyle(x).color is "rgb(0, 128, 0)"
PASS successfullyParsed is true

TEST COMPLETE