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description("Tests the timestamps provided to requestAnimationFrame callbacks advance");
function busyWait(millis) {
var start = Date.now();
while (Date.now()-start < millis) {}
}
var firstTimestamp = undefined;
var secondTimestamp = undefined;
window.webkitRequestAnimationFrame(function(timestamp) {
firstTimestamp = timestamp;
shouldBeDefined("firstTimestamp");
window.webkitRequestAnimationFrame(function(timestamp) {
secondTimestamp = timestamp;
shouldBeDefined("secondTimestamp");
shouldBeTrue("secondTimestamp > firstTimestamp");
isSuccessfullyParsed();
if (window.layoutTestController)
layoutTestController.notifyDone();
});
busyWait(10);
if (window.layoutTestController)
layoutTestController.display();
});
if (window.layoutTestController)
window.setTimeout(function() {
layoutTestController.display();
});
if (window.layoutTestController)
layoutTestController.waitUntilDone();
var successfullyParsed = true;
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