<!DOCTYPE html>
<html>
<body>
<script src="../../resources/js-test-pre.js"></script>
<script>
description("Tests that requestAnimationFrame is not throttled in zero-sized subframes");
window.jsTestIsAsync = true;

function runTest()
{
    testFrame = document.getElementById("testFrame");

    // Force layout.
    document.body.offsetTop;

    shouldBeEqualToString("testFrame.contentWindow.internals.requestAnimationFrameThrottlingReasons()", "[Unthrottled]");
    finishJSTest();
}
</script>
<iframe id="testFrame" style="position: absolute; top: 800px; left: 0; height: 0;" src="resources/requestAnimationFrame-frame.html" onload="runTest()"></iframe>
<script src="../../resources/js-test-post.js"></script>
</body>
</html>