LayoutTests/editing/execCommand/5658933-3.html

<div id="description">This tests to see if indenting several paragraphs inside different table cells puts them into a single cell, as in FireFox (wrong) or indents each paragraph (correct).</div>
<div id="edit" contenteditable="true">
<table border="1"><tr><td id="start">hello</td><td id="end">world</td></tr></table>
</div>

<script>
if (window.testRunner)
    window.testRunner.dumpAsText();
    
start = document.getElementById("start");
end = document.getElementById("end");
window.getSelection().setBaseAndExtent(start, 0, end, end.childNodes.length);
document.execCommand("Indent");

document.body.innerText = document.getElementById("description").innerText + "\n" + document.getElementById("edit").innerHTML;
</script>