chromium/third_party/blink/web_tests/paint/invalidation/forms/textarea-set-disabled.html

<!DOCTYPE html>
<html>
<head>
    <script src="../../../resources/ahem.js"></script>
    <script src="../resources/text-based-repaint.js" type="text/javascript"></script>
    <script>
        function repaintTest()
        {
            document.getElementsByTagName('textarea')[0].disabled = true;
        }
    </script>
</head>
<body onload="runRepaintAndPixelTest()">
<form>
  <textarea style="font: 10px Ahem; width: 100px; height: 100px;"></textarea>
</form>
</body>
</html>