<!DOCTYPE html>
<html>
<body>
<p>This tests entering HTMLPlugInElement::isReplacementObscured() while the top document's style tree is dirty.<br>
WebKit should update the layout of all documents and should not hit any debug assertions.</p>
<style> input:focus { border: solid 5px black; } </style>
<script>

if (window.testRunner) {
    testRunner.setPluginSupportedMode("none");
    testRunner.dumpAsText();
}

document.body.getBoundingClientRect();

const frame = document.createElement('iframe');
document.body.appendChild(frame);
const frameDocument = frame.contentDocument;
frameDocument.body.innerHTML = '<object name="testPlugin" type="application/x-webkit-test-netscape" width="200" height="200"></object>';

frameDocument.addEventListener('beforeload', () => {
    console.log('2. beforeload for the object fires and dirties the style tree');
    const input = document.createElement('input');
    input.setAttribute('autofocus', '');
    document.body.appendChild(input);
}, true);

console.log('1. Updating the layout with an embed object inside an iframe');
const rect = frameDocument.querySelector('object').getBoundingClientRect();
console.log('3. Updated layout. The test passed.');

document.write('PASS');

</script>
</body>
</html>