Added missing content to nav-top-menu

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

 // Copyright (c) 2015, 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 persitent_handles_page;
 
 import 'dart:async';
 import 'dart:html';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/containers/virtual_collection.dart';
 import 'package:observatory/src/elements/helpers/any_ref.dart';
 import 'package:observatory/src/elements/helpers/nav_bar.dart';
 import 'package:observatory/src/elements/helpers/nav_menu.dart';
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
-import 'package:observatory/src/elements/helpers/uris.dart';
 import 'package:observatory/src/elements/instance_ref.dart';
 import 'package:observatory/src/elements/nav/isolate_menu.dart';
 import 'package:observatory/src/elements/nav/notify.dart';
 import 'package:observatory/src/elements/nav/refresh.dart';
 import 'package:observatory/src/elements/nav/top_menu.dart';
 import 'package:observatory/src/elements/nav/vm_menu.dart';
 import 'package:observatory/utils.dart';
 
 enum _SortingField {
   externalSize,
@@ skipping 234 matching lines @@
     _r.dirty();
     _handles = await _repository.get(_isolate);
     _r.dirty();
   }
 
   static int _getExternalSize(M.WeakPersistentHandle h) => h.externalSize;
   static String _getPeer(M.WeakPersistentHandle h) => h.peer;
   static String _getFinalizerCallback(M.WeakPersistentHandle h) =>
       '${h.callbackSymbolName} (${h.callbackAddress})';
 }