<!DOCTYPE html> <!-- webkit-test-runner [ AsyncOverflowScrollingEnabled=true ] -->
<html>
<head>
<style>
body {
  height: 2000px;
}

.container {
  width: 400px;
  height: 420px;
  padding: 10px;
  margin: 120px;
  border: 1px solid black;
}
</style>
<script>     
window.onload = function () {
    if (window.testRunner)
        testRunner.dumpAsText();

    let container = document.querySelector('.container');
    container.addEventListener('wheel', () => { }, { passive: true });
    document.body.offsetLeft;
    
    if (window.internals)
        results.innerText += internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_EVENT_REGION | internals.LAYER_TREE_INCLUDES_ROOT_LAYER_PROPERTIES);
};
</script>
</head>
<body>
<div class="container">Wheel Event Handlers here.</div>
<pre id="results"></pre>
</body>
</html>