chromium/third_party/blink/web_tests/fast/forms/password/password-losing-focus.html

<link rel="match" href="password-losing-focus-expected.html">

<input type="password" id="passwd">

<script>
    // The verifies the reveal-password button doesn't appear if the password control loses focus.
    var passwd = document.getElementById("passwd");
    passwd.focus();
    eventSender.keyDown('a'); // pass1 shows the reveal-password button.
    eventSender.keyDown('F8', ['altKey']); // pass1 reveals the password
    passwd.blur(); // pass1 hides the reveal-password button AND the password.
</script>