[Sync] Tweaks to About tab of chrome://sync-internals

chrome/browser/resources/sync_internals/about.html

 <script>
 (function () {
 // Contains the latest snapshot of sync about info.
 chrome.sync.aboutInfo = {};
 
 // TODO(akalin): Make aboutInfo have key names likeThis and not
 // like_this.
 function refreshAboutInfo(aboutInfo) {
   chrome.sync.aboutInfo = aboutInfo;
   var aboutInfoDiv = document.getElementById('aboutInfo');
@@ skipping 34 matching lines @@
 table#routingInfo tr:nth-child(odd) {
   background: #ccffcc;
 }
 </style>
 
 <div id='aboutInfo'>
 <div class="column">
   <h2>Summary</h2>
   <p jscontent="summary"/>
   <p jsdisplay="unrecoverable_error_detected">
-    <span class="err">Unrecoverable Error Detected!</span>
-    <span jscontent="unrecoverable_error_message"></span>
-    <span jscontent="unrecoverable_error_location"></span>
+    <span class="err" jscontent="unrecoverable_error_message"></span>
   </p>
 
   <h2>Sync URL</h2>
   <p jscontent="service_url"/>
 
   <h2>Details</h2>
   <table id="aboutDetails">
     <tr>
       <td>Authenticated</td>
       <td>
@@ skipping 15 matching lines @@
 <div class="column">
   <h2>Routing Info</h2>
   <table id="routingInfo">
     <tr jsselect="routing_info">
       <td jscontent="model_type"/>
       <td jscontent="group"/>
     </tr>
   </table>
 </div>
 </div>