two_iframes.html | Explore in Territory

<html>
  <head>
    <script>
      function onload() {
        document.getElementById('iframe1').srcdoc =
         '<body onload="document.getElementById(\'text_area\').focus();">' +
         '<textarea id=text_area>Some text.</textarea></body>';
      }
    </script>
  </head>
  <body onload='onload();'>
    <iframe id=iframe1></iframe>
    <iframe id=iframe2></iframe>
  </body>
</html>

chromium/chrome/test/data/pdf/two_iframes.html