Add NetLog support to UDP sockets.

chrome/browser/resources/net_internals/events_view.css

 /*
 Copyright (c) 2011 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.
 */
 
 #events-view-filter-box {
   background: #efefef;
   padding: 5px;
   border-bottom: 1px solid gray;
@@ skipping 55 matching lines @@
 
 #events-view-source-list-tbody .inactive {
   background: #F5FFF5;
 }
 
 #events-view-source-list-tbody .source_CONNECT_JOB {
   color: blue;
 }
 
 #events-view-source-list-tbody .source_HOST_RESOLVER_IMPL_JOB,
-#events-view-source-list-tbody .source_HOST_RESOLVER_IMPL_REQUEST {
+#events-view-source-list-tbody .source_HOST_RESOLVER_IMPL_REQUEST,
+#events-view-source-list-tbody .source_ASYNC_HOST_RESOLVER_REQUEST,
+#events-view-source-list-tbody .source_DNS_TRANSACTION {
   color: #206060;
 }
 
 #events-view-source-list-tbody .source_DISK_CACHE_ENTRY,
 #events-view-source-list-tbody .source_MEMORY_CACHE_ENTRY {
   color: #707070;
 }
 
 #events-view-source-list-tbody .source_SOCKET {
   color: purple;
 }
 
+#events-view-source-list-tbody .source_UDP_SOCKET {
+  color: #803030;
+}
+
 #events-view-source-list-tbody .source_INIT_PROXY_RESOLVER {
   color: green;
 }
 
 #events-view-source-list-tbody .source_NONE {
   color: red;
 }
 
 .events-view-tab-switcher {
   margin-top: 10px;
@@ skipping 17 matching lines @@
   background: rgb(195,217,255);
 }
 
 .events-view-tab-switcher-line {
   height: 10px;
 }
 
 #events-view-details-tab-handles {
   border: 1px solid white;
 }