chromium/chrome/test/data/dom_storage_empty_db.html

<html>
  <head>
    <title>Local Storage Test</title>
    <script type="text/javascript">
      function get() {
        var x = localStorage.getItem('foo');
        document.location = '#get';  // Because NavigateToURL() in the UI test
                                     // waits for a location change.
      }
      function set() {
        localStorage.setItem('foo', 'bar');
        document.location = '#set';
      }
      function clear() {
        localStorage.clear();
        document.location = '#clear';
      }
    </script>
  </head>

  <body>
    <ul>
      <li><a href="javascript:get()">Get item from localStorage</a>
      <li><a href="javascript:set()">Set item in localStorage</a>
      <li><a href="javascript:clear()">Clear localStorage</a>
    </ul>
  </body>
</html>