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

Tools/GardeningServer/ui/ct-failure-analyzer.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.
 -->
 
 <link rel="import" href="../model/ct-failure.html">
+<link rel="import" href="../model/ct-failure-group.html">
 
 <polymer-element name="ct-failure-analyzer" attributes="failures builderLatestRevisions">
   <script>
     // FIXME: Don't use a polymer component for this. Instead use a Failures model
     // object that knows how to do the XHR and process the data appropriately.
     Polymer({
       builderLatestRevisions: null,
       failures: null,
 
       // FIXME: Get this from https://chromium.googlesource.com/chromium/tools/build/+/master/scripts/slave/gatekeeper_trees.json?format=text.
@@ skipping 92 matching lines @@
               groupedFailures[tree] = [];
             groupedFailures[tree].push(new CTFailure(failure.step, failure.reason, resultsByBuilder, group.merged_first_failing, group.merged_last_passing));
           })
         });
 
         Object.keys(groupedFailures, function(tree, failures) {
           failures.sort(this._failureComparator);
 
           if (!this.failures[tree])
             this.failures[tree] = [];
-          this.failures[tree].push(failures);
+          // FIXME: Pass a snoozetime argument to CTFailureGroup.
+          this.failures[tree].push(new CTFailureGroup(group.sort_key, failures));
         }.bind(this));
       },
     });
   </script>
 </polymer-element>