Surface button for loading stale cache copy on net error page.

chrome/renderer/resources/neterror.js

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 function toggleHelpBox() {
   var helpBoxOuter = document.getElementById('help-box-outer');
   helpBoxOuter.classList.toggle('hidden');
   var moreLessButton = document.getElementById('more-less-button');
   if (helpBoxOuter.classList.contains('hidden')) {
     moreLessButton.innerText = moreLessButton.moreText;
@@ skipping 46 matching lines @@
 function search(baseSearchUrl) {
   var searchTextNode = document.getElementById('search-box');
   document.location = baseSearchUrl + searchTextNode.value;
   return false;
 }
 
 <if expr="is_macosx or is_ios or is_linux or is_android">
 // Re-orders buttons. Used on Mac, Linux, and Android, where reload should go
 // on the right.
 function swapButtonOrder() {
-  reloadButton = document.getElementById('reload-button');
-  moreLessButton = document.getElementById('more-less-button');
+  var reloadButton = document.getElementById('reload-button');
+  var moreLessButton = document.getElementById('more-less-button');
+  var staleLoadButton = document.getElementById('stale-load-button');
   reloadButton.parentNode.insertBefore(moreLessButton, reloadButton);
+  reloadButton.parentNode.insertBefore(staleLoadButton, reloadButton)
 }
 document.addEventListener("DOMContentLoaded", swapButtonOrder);
 </if>