Update network error interstitial strings

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('details');
   helpBoxOuter.classList.toggle('hidden');
   var detailsButton = document.getElementById('details-button');
   if (helpBoxOuter.classList.contains('hidden'))
     detailsButton.innerText = detailsButton.detailsText;
@@ skipping 191 matching lines @@
     setUpCachedButton(loadTimeData.getValue('cacheButton'));
   }
 
   if (reloadButton.style.display == 'none' &&
       showSavedCopyButton.style.display == 'none' &&
       showOfflinePagesButton.style.display == 'none' &&
       showOfflineCopyButton.style.display == 'none') {
     detailsButton.classList.add('singular');
   }
 
-<if expr="not chromeos">
-  // Hide the details button if there are no details to show.
-  if (loadTimeData.valueExists('summary') &&
-          !loadTimeData.getValue('summary').msg) {
-    detailsButton.style.display = 'none';
-  }
-</if>
-
   // Show control buttons.
   if (reloadButtonVisible || showSavedCopyButtonVisible ||
       showOfflinePagesButtonVisible || showOfflineCopyButton) {
     controlButtonDiv.hidden = false;
 
     // Set the secondary button state in the cases of two call to actions.
     if ((reloadButtonVisible || showOfflinePagesButtonVisible ||
          showOfflineCopyButton) &&
         showSavedCopyButtonVisible) {
       secondaryButton.classList.add('secondary-button');
     }
   }
-
-  // Add a main message paragraph.
-  if (loadTimeData.valueExists('primaryParagraph')) {
-    var p = document.querySelector('#main-message p');
-    p.innerHTML = loadTimeData.getString('primaryParagraph');
-    p.hidden = false;
-  }
 }
 
 document.addEventListener('DOMContentLoaded', onDocumentLoad);