LayoutTests/plugins/plugin-clip-subframe.html

<!doctype html>
<html>
<script>
function test() {
    // Increase the size of the container so the iframe becomes visible.
    document.getElementById("container").style.height = "400px";
    document.getElementById("container").offsetWidth;
    setTimeout(done, 10);
}

function done() {
    if (testRunner) {
        testRunner.dumpAsText();
        testRunner.notifyDone();
    }
}

function runTest() {
    if (testRunner)
        testRunner.waitUntilDone();
    document.getElementById("container").offsetWidth;
    setTimeout(test, 10);
}
</script>
<body onload="runTest()">

<div id = "container" style="overflow: hidden; width:100px; height:100px">
<iframe id='subframe' src='resources/plugin-clip-subframe-iframe.html' width=500 height=500 style="margin-top:200px"></iframe>
</div>
</body>
</html>