Add 'Sockets' to observatory.

runtime/bin/service_object_patch.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 final Map _servicePathMap = {
   'http' : {
     'servers' : _httpServersServiceObject,
   },
-  'socket' : _socketServiceObject,
+  'sockets' : _socketsServiceObject,
   'file' : {
     'randomaccessfiles' : _randomAccessFilesServiceObject
   }
 };
 
 String _serviceObjectHandler(List<String> paths,
                              List<String> keys,
                              List<String> values) {
   assert(keys.length == values.length);
   badPath() {
@@ skipping 36 matching lines @@
     return server._toJSON(false);
   }
   return {
     'id': 'io/http/servers',
     'type': 'HttpServerList',
     'members': _HttpServer._servers.values
         .map((server) => server._toJSON(true)).toList(),
   };
 }
 
-Map _socketServiceObject(args) {
+Map _socketsServiceObject(args) {
   if (args.length == 1) {
     var socket = _NativeSocket._sockets[int.parse(args.first)];
     if (socket == null) {
       return {};
     }
     return socket._toJSON(false);
   }
   return {
-    'id': 'io/socket',
+    'id': 'io/sockets',
     'type': 'SocketList',
     'members': _NativeSocket._sockets.values
         .map((socket) => socket._toJSON(true)).toList(),
   };
 }
 
 Map _randomAccessFilesServiceObject(args) {
   if (args.length == 1) {
     var raf = _RandomAccessFile._files[int.parse(args.first)];
     if (raf == null) {
       return {};
     }
     return raf._toJSON(false);
   }
   return {
     'id': 'io/file/randomaccessfiles',
     'type': 'RandomAccessFileList',
     'members': _RandomAccessFile._files.values
         .map((raf) => raf._toJSON(true)).toList(),
   };
 }