chromium/third_party/blink/web_tests/fast/frames/iframe-reparenting-unique-name.html

<html>
<head>
<script>
if (window.testRunner) {
    testRunner.dumpAsText();
    testRunner.dumpChildFrames();
}

function runTest()
{
    var frames = document.getElementsByTagName("iframe");
    var dummy = frames[0];
    var testFrame = frames[1];
    testFrame.contentDocument.adoptNode(dummy);
    testFrame.contentDocument.body.appendChild(dummy);
}
window.onload = runTest;
</script>
</head>
<body>
<iframe src="data:text/plain,Frame 1"></iframe>
<iframe src="resources/iframe-reparenting-unique-name-iframe2.html"></iframe>
</body>
</html>