[Sheriff-o-matic] Refactor cards and get rid of ct-failure-cards

Tools/GardeningServer/ui/ct-trooper-card.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-chart.html">
 
 <polymer-element name="ct-trooper-card" attributes="group">
   <template>
     <style>
+      :host {
+        display: flex;
+        flex: 1;
+      }
+
       #failure {
         flex: 1;
         margin-left: 10px;
       }
 
       #details {
         font-weight: bold;
       }
 
       ::shadow #chart {
@@ skipping 78 matching lines @@
         this.options = {
           scaleBeginAtZero: true,
           legend: false,
           annotateLabel: '<%=v1%>: <%=Math.round(v3)%>',
           annotateDisplay: true
         }
      },
     });
   </script>
 </polymer-element>