Add hung bots to sheriff-o-matic view

Tools/GardeningServer/model/ct-failure-group.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="ct-commit-list.html">
 
 <script>
-function CTFailureGroup(key, data) {
+function CTFailureGroup(key, data, category) {
   this.key = key;
   this.data = data;
   this._annotation = CTFailureGroup._mergeAnnotations(data.getAnnotations());
+  this._originalCategory = category || 'default';
   this._computeProperties();
 }
 
 CTFailureGroup.prototype.dataToExamine = function() {
   return this.data.dataToExamine();
 }
 
 CTFailureGroup.prototype.snoozeUntil = function(time) {
   return this._annotate({
     snoozeTime: time,
@@ skipping 34 matching lines @@
 }
 
 CTFailureGroup.prototype._computeProperties = function() {
   this.isSnoozed = Date.now() < this._annotation.snoozeTime;
   if (this.isSnoozed) {
     this.category = 'snoozed';
   } else {
     if (this._failedOnce()) {
       this.category = 'failedOnce';
     } else {
-      this.category = 'default';
+      this.category = this._originalCategory;
     }
     // FIXME: crbug.com/400397 Split into: Whole step failure, Tree closer, Test failure, Flaky tests
   }
 
   this.bug = this._annotation.bug;
   // FIXME: Bug labels would be simpler to implement as a filter in the UI.
   if (this.bug != null)
     this.bugLabel = 'Bug ' + /([0-9]{3,})/.exec(this.bug)[0];
   else
     this.bugLabel = undefined;
@@ skipping 47 matching lines @@
   }.bind(this));
 };
 
 CTFailureGroup.fetchAnnotations = function() {
   // FIXME: Fetch annotations from frontend.
   var stored = localStorage.CTFailureGroupAnnotations;
   var annotations = stored ? JSON.parse(stored) : {};
   return Promise.resolve(annotations);
 };
 </script>