Sync: Display non-severe errors on about:sync in gray color rather than red.

chrome/browser/resources/sync_internals/about.css

 /* Copyright 2013 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.
  */
 
 #about-info {
   -webkit-column-width: 350px;
 }
 
 #about-info > div {
@@ skipping 26 matching lines @@
 }
 
 #typeInfo .error {
  background: rgb(255, 204, 204);
 }
 
 #typeInfo .warning {
  background: rgb(255, 255, 204);
 }
 
+#typeInfo .disabled {
+ background: rgb(224, 224, 224);
+}
+
 #typeInfo .ok {
  background: rgb(204, 255, 204);
 }
 
 @-webkit-keyframes highlight1 {
   0% {
     background: rgb(255, 255, 0);
   }
   100% {
     background: #fff;
@@ skipping 70 matching lines @@
 }
 
 .traffic-event-entry-expanded .proto {
   background-color: #fff;
   border: 1px solid #222;
   display: block;
   max-height: 300px;
   overflow-x: auto;
   overflow-y: auto;
 }