Add last update time to Sheriff-O-Matic.

Tools/GardeningServer/ui/ct-sheriff-o-matic.html

 <!--
 Copyright 2014 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.
 -->
 
 <script src="../bower_components/sugar/release/sugar-full.development.js"></script>
 <script src="../scripts/net.js"></script>
 <script src="../scripts/results.js"></script>
 <script src="../scripts/ui.js"></script>
@@ skipping 36 matching lines @@
       <div>
         <template if="{{ selected == 0 }}">
           <span><img src="../favicon.ico"> Auto-sheriff-o-maticon</span>
         </template>
         <template if="{{ selected == 1 }}">
           <a on-click="{{ onBack }}">
             &lt;&lt; Go back
           </a>
         </template>
       </div>
-      <!-- FIXME: Use a proper polymer component with data binding. -->
-      <select id="tree" on-change="{{ _updateTree }}">
-        <option value="blink">Blink</option>
-        <option value="chromium">Chromium</option>
-      </select>
+      <div>
+        <ct-last-updated date="{{ lastUpdateDate }}"></ct-last-updated>
+        <!-- FIXME: Use a proper polymer component with data binding. -->
+        <select id="tree" on-change="{{ _updateTree }}">
+          <option value="blink">Blink</option>
+          <option value="chromium">Chromium</option>
+        </select>
+      </div>
     </header>
 
     <core-animated-pages selected="{{ selected }}" transitions="slide-from-right">
-      <ct-unexpected-failures tree="{{ tree }}" on-ct-examine-failures="{{ onExamine }}"></ct-unexpected-failures>
+      <ct-unexpected-failures tree="{{ tree }}" lastUpdateDate="{{ lastUpdateDate }}" on-ct-examine-failures="{{ onExamine }}"></ct-unexpected-failures>
       <ct-results-panel failures="{{ currentFailures }}" tree="{{ tree }}"></ct-results-panel>
     </core-animated-pages>
   </template>
   <script>
     Polymer({
       // FIXME: Make chromium the default.
       // That requires updating the select to the right value.
       tree: 'blink',
       selected: 0,
       currentFailures: [],
 
       _updateTree: function() {
         this.tree = this.$.tree.selectedOptions[0].value;
       },
 
       onBack: function() {
         this.selected = 0;
       },
 
       onExamine: function(event) {
         this.currentFailures = event.detail.failures;
         this.selected = 1;
       },
     });
   </script>
 </polymer-element>