http/tests/pointer-lock/iframe-sandboxed-nested-allow-pointer-lock.html

<!DOCTYPE HTML>
<html>
<head>
<script src="../resources/js-test-pre.js"></script>
<script src="../resources/pointer-lock/pointer-lock-test-harness.js"></script>
</head>
<body>
<div>
  <div id="target1"></div>
  <iframe src="../resources/pointer-lock/iframe-allows-inner-iframe.html" sandbox="allow-pointer-lock allow-scripts" onload="doNextStepWithUserGesture()"></iframe>
</div>
<script>
    description("Test nested sandboxed iframes with allow-pointer-lock allow pointer lock.");
    window.jsTestIsAsync = true;

    targetDiv1 = document.getElementById("target1");
    iframe = document.getElementsByTagName("iframe")[0];

    todo = [
      function () {
          iframe.contentWindow.postMessage(["pass message down", "eval", 'document.body.webkitRequestPointerLock()'], "*");
          window.onmessage = function (messageEvent) {
              message = messageEvent.data;
              shouldBeEqualToString("message", "inner-iframe.html onwebkitpointerlockchange, document.webkitPointerLockElement = [object HTMLBodyElement]");
              window.onmessage = null;
              doNextStep();
          }
      },
    ];
    // doNextStep() called by iframe onload handler.
</script>
<script src="../resources/js-test-post.js"></script>
</body>
</html>