Tests that requestAnimationFrame is invoked with correct timestamp on CompositorWorker. On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". PASS FAIL rafTime is should be >= startTime startTime. Was -124.71499999992375 (of type number). PASS endTime is >= rafTime PASS Received reply from CompositorWorker. PASS successfullyParsed is true TEST COMPLETE