Converted Observatory vm-nav-menu element

runtime/observatory/lib/src/elements/nav_bar.dart

 // Copyright (c) 2013, 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.
 
 library nav_bar_element;
 
 import 'dart:html' hide Notification;
 import 'observatory_element.dart';
 import 'package:observatory/service.dart';
 import 'package:observatory/app.dart' show Notification;
 import 'package:polymer/polymer.dart';
 
-@CustomTag('vm-nav-menu')
-class VMNavMenuElement extends ObservatoryElement {
-  @published bool last = false;
-  @published VM vm;
-
-  String nameAndAddress(name, target) {
-    if (name != null && target != null) {
-      return '${name}@${target.networkAddress}';
-    } else {
-      return '<initializing>';
-    }
-  }
-
-  VMNavMenuElement.created() : super.created();
-}
-
 @CustomTag('library-nav-menu')
 class LibraryNavMenuElement extends ObservatoryElement {
   @published Library library;
   @published bool last = false;
 
   LibraryNavMenuElement.created() : super.created();
 }
 
 @CustomTag('class-nav-menu')
 class ClassNavMenuElement extends ObservatoryElement {
@@ skipping 44 matching lines @@
   @observable get isUnexpectedError {
     return (exception is! NetworkRpcException);
   }
 
   void closeItem(MouseEvent e, var detail, Element target) {
     notifications.remove(notification);
   }
 
   NavNotifyExceptionElement.created() : super.created();
 }