<!DOCTYPE html>
<html>
<body>
<div id="content" style="height:0px; overflow:hidden;"> </div>
<input id="field" type="password" value="">
<script src="../resources/runner.js"></script>
<script>
var content = document.getElementById('content');
var field = document.getElementById('field');

var newContent = '<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit.</p>';
for (var i = 0; i < 12; i++)
    newContent += newContent;
content.innerHTML = newContent;

PerfTestRunner.measureTime({
    unit: 'ms',
    setup: function () {
        field.value = 'A';
    },
    run: function () {
        field.focus();
        document.execCommand('Delete');
    },
    done: function () {
        content.innerHTML = '';
    }
});

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