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

chrome/renderer/resources/neterror.html

Index: chrome/renderer/resources/neterror.html
diff --git a/chrome/renderer/resources/neterror.html b/chrome/renderer/resources/neterror.html
index 63c6a6922064ed8d46bbf5048ef00e1ad244a167..5ab8aa470dacce396ee8eeff4fcd766d3b1952e5 100644
--- a/chrome/renderer/resources/neterror.html
+++ b/chrome/renderer/resources/neterror.html
@@ -21,12 +21,15 @@
         </h1>
         <div id="buttons">
           <button id="reload-button" class="blue-button text-button"
-              onclick="location = this.url"
-              jsselect="reload" jsvalues=".url:reloadUrl"
-              jscontent="msg"></button>
+              onclick="helperFunctions.reloadButtonClick();"
+              jsselect="reloadButton" jscontent="msg"></button>
+          <button id="stale-load-button" class="blue-button text-button"
+              onclick="helperFunctions.loadStaleButtonClick()"
+	      jsselect="staleLoadButton"
+	      jscontent="msg" jsvalues="title:title"></button>
           <button id="more-less-button" class="text-button"
-              onclick="toggleHelpBox()" jsdisplay="more"
-              jsvalues=".moreText:more; .lessText:less;"
+              onclick="helperFunctions.moreButtonClick(); toggleHelpBox()"
+	      jsdisplay="more" jsvalues=".moreText:more; .lessText:less;"
               jscontent="more"></button>
         </div>
       </div>