chromium/chrome/test/data/automation_proxy_snapshot/set_size.html

<html>
  <head>
    <script>
      window.onload = function() {
        var queryString = window.location.search.substring(1);
	document.body.style.minWidth = queryString.split(',')[0];
	document.body.style.minHeight = queryString.split(',')[1];
      }
    </script>
    <style>
      * {
        margin: 0px;
	padding: 0px;
	background-color: red;
      }
    </style>
  </head>
  <body>
  </body>
</html>