Converted Observatory heap-map element

runtime/observatory/lib/src/service/object.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.
 
 part of service;
 
 // Some value smaller than the object ring, so requesting a large array
 // doesn't result in an expired ref because the elements lapped it in the
 // object ring.
 const int kDefaultFieldLimit = 100;
@@ skipping 1805 matching lines @@
   Future refreshMetrics() {
     return Future.wait([refreshDartMetrics(), refreshNativeMetrics()]);
   }
 
   String toString() => "Isolate($name)";
 }
 
 
 class NamedField implements M.NamedField {
   final String name;
-  final HeapObject value;
+  final M.ObjectRef value;
   NamedField(this.name, this.value);
 }
 
 
 class ObjectStore extends ServiceObject implements M.ObjectStore {
   @observable List<NamedField> fields = new List<NamedField>();
 
   ObjectStore._empty(ServiceObjectOwner owner) : super._empty(owner);
 
   void _update(ObservableMap map, bool mapIsRef) {
@@ skipping 2460 matching lines @@
     var v = list[i];
     if ((v is ObservableMap) && _isServiceMap(v)) {
       list[i] = owner.getFromMap(v);
     } else if (v is ObservableList) {
       _upgradeObservableList(v, owner);
     } else if (v is ObservableMap) {
       _upgradeObservableMap(v, owner);
     }
   }
 }