chromium/content/test/data/textinput/ime_enable_disable_test.html

<html>
  <head>
    <script type="text/javascript">
      function text01_focus() {
        document.getElementById('text01_id').focus();
        return true;
      }
      function text02_focus() {
        document.getElementById('text02_id').focus();
        return true;
      }
      function password01_focus() {
        document.getElementById('password01_id').focus();
        return true;
      }
      function password02_focus() {
        document.getElementById('password02_id').focus();
        return true;
      }
      function onLoad() {
        document.activeElement.blur();
      }
    </script>
  </head>
  <body onload="onLoad()">
  <input type="text" id="text01_id">
  <input type="text" id="text02_id">
  <input type="password" id="password01_id">
  <input type="password" id="password02_id">
  </body>
</html>