TestResultServer: Add failure 'LEAK'

Tools/TestResultServer/static-dashboards/flakiness_dashboard_tests.css

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 118 matching lines @@
 }
 .IMAGETEXT {
     background-color: #96f;
 }
 .AUDIO {
     background-color: lightblue;
 }
 .FLAKY {
     background-color: turquoise;
 }
+.LEAK {
+    background-color: pink;
+}
 .separator {
     border: 1px solid lightgray;
     height: 0px;
 }
 #passing-tests,
 #skipped-tests {
     -webkit-column-count: 3;
     -webkit-column-gap: 25px;
     -webkit-column-rule: 1px dashed black;
     -moz-column-count: 3;
@@ skipping 100 matching lines @@
     display: inline-block;
     white-space: nowrap;
 }
 .skipped-builder:after {
     content: '|';
     margin: 5px;
 }
 .skipped-builder:last-child:after {
     content: '';
 }
-