Basic Interface test for paint-timing APIs.

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


PerformancePaintTiming
PASS PerformancePaintTiming is defined.
PASS PerformancePaintTiming.prototype.toJSON is defined.
PASS new PerformancePaintTiming() threw exception TypeError: Illegal constructor.
PASS successfullyParsed is true

TEST COMPLETE