chromium/third_party/blink/web_tests/fast/dom/Element/scroll-width-hidden.html

<!DOCTYPE html>
<html>
    <head>
        <script src="../../../resources/check-layout.js"></script>
        <style type="text/css">
            ::-webkit-scrollbar {
                width: 10px;
                height: 10px;
            }
            ::-webkit-scrollbar-thumb {
                border-radius: 4px;
                background-color: #CCCCCC;
                -webkit-box-shadow: 0 0 1px rgba(255,255,255,.5);
            }
            div {
                position: absolute;
                top: 200px;
                left: 0px;
                background-color: red;
                width: 200px;
                height: 150px;
                padding: 0px;
                overflow: scroll;
                visibility: hidden;
            }
            #scrollChild {
                width: 150%;
                height: 200px;
                padding: 0px;
            }
        </style>     
    </head>
    <body>
        Tests that element.clientWidth of visible element with scrollbars returns proper values
        <div id="scrollDiv" data-expected-client-width="190"><p id="scrollChild"></p></div>
        <p id="test-output"></p>
    </body>
    <script type="text/javascript">
        window.checkLayout("div", document.getElementById("test-output"));
    </script>
</html>