meter-element-repaint-on-update-value.html

<html>
<head>
<body>
<meter id="shadow" value="0" min="0" max="100"></meter>
<script>
if (window.testRunner)
    testRunner.waitUntilDone();
document.body.onload = function() {
    window.setTimeout(function() {
        document.getElementById("shadow").value = 50;
        window.setTimeout(function() {
             if (window.testRunner)
                 testRunner.notifyDone();
        }, 0);
    }, 50);
}
</script>
</body>
</html>

chromium/third_party/blink/web_tests/fast/dom/HTMLMeterElement/meter-element-repaint-on-update-value.html