Adds a snooze button to the sheriff-o-matic ui

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 65 matching lines @@
 
       _updateTree: function() {
         this.tree = this.$.tree.selectedOptions[0].value;
       },
 
       onBack: function() {
         this.selected = 0;
       },
 
       onExamine: function(event) {
-        this.currentFailures = event.detail;
+        this.currentFailures = event.detail.failures;
         this.selected = 1;
       },
     });
   </script>
 </polymer-element>