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 42 matching lines @@
   classList['last_icon_class'] = newClass;
 }
 
 // Does a search using |baseSearchUrl| and the text in the search box.
 function search(baseSearchUrl) {
   var searchTextNode = document.getElementById('search-box');
   document.location = baseSearchUrl + searchTextNode.value;
   return false;
 }
 
+// Implements button clicks.  This function is needed during the transition
+// between implementing these in trunk chromium and implementing them in
+// IOS.
+function reloadButtonClick(url) {
+    if ('errorPageController' in window) {
+        errorPageController.reloadButtonClick();
+    } else {
+        location = url;
+    }
+}
+
+function loadStaleButtonClick() {
+    if ('errorPageController' in window) {
+        errorPageController.loadStaleButtonClick();
+    }
+}
+
+function moreButtonClick() {
+    if ('errorPageController' in window) {
+        errorPageController.moreButtonClick();
+    }

[mmenke, 2014/04/15 16:02:25]

nit:  These all should be using two space indent.

[mmenke, 2014/04/15 16:02:25]

Can't you just use:

if (errorPageController) {
  errorPageController.blah();
}

[Randy Smith (Not in Mondays), 2014/04/15 18:27:29]

Done.

[Randy Smith (Not in Mondays), 2014/04/15 18:27:29]

When I disable the Gin bindings (to mimc IOS) and try that, I get:

[14801:14801:0415/142343:INFO:CONSOLE(386)] "Uncaught ReferenceError:
errorPageController is not defined", source: data:text/html,chromewebdata (386)

[mmenke, 2014/04/17 14:39:25]

Ah, right.  "window.errorPageController" would work, though - I prefer it for
being more C-like, and I don't think we care about the case where it has a value
of null, false, 0, or the empty string.  But I don't feel strongly about it.

[Randy Smith (Not in Mondays), 2014/04/17 16:04:54]

Huh.  Learn something new every day; thank you.  Done.

+}
+
 <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>