chromium/chrome/test/data/autofill/prerendered.html

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<html>
  <head>
    <title>Autofill Form</title>
  </head>
  <body>
    <form id="testform" method="post">
      <p>
      <!-- Profile -->
        <label for="NAME_FIRST">First Name:</label>
        <input type="text" id="NAME_FIRST" name="firstname"><br/>
        <label for="NAME_MIDDLE">Middle Name:</label>
        <input type="text" id="NAME_MIDDLE" name="middlename" autofocus><br/>
      </p>
    </form>
  </body>
</html>