chromium/third_party/blink/web_tests/fast/events/click-anchor-refocus-window.html

<!DOCTYPE html>
<html>
<head>
</head>
<body>
<p>This test ensures that the focus ring is not shown on the anchor after blurring and focusing the window.</p>
<a id="anchor" href="javascript:log('anchor was clicked')">Anchor</a>
<pre id="console">
</pre>

<script>
var anchor = document.getElementById('anchor');
window.onfocus = function() {
    log('window was focused');
};
window.onblur = function() {
    log('window was blurred');
};
anchor.onfocus = function() {
    log('anchor was focused');
};
anchor.onblur = function() {
    log('anchor was blurred');
};
window.onload = function() {
    if (window.eventSender) {
        // Click the link.
        eventSender.mouseMoveTo(anchor.offsetLeft + 2, anchor.offsetTop + 2);
        eventSender.mouseDown();
        eventSender.mouseUp();
        internals.setFocused(false);
        internals.setFocused(true);
    }
};

function log(message) {
    var console = document.getElementById("console");
    console.textContent += message + '\n';
}
</script>
</body>
</html>