Converted Observatory ports-page element

runtime/observatory/lib/src/elements/object_common_wrapper.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.
 
 import 'dart:html';
 
 import 'package:observatory/app.dart';
 import 'package:observatory/service.dart';
 import 'package:observatory/repositories.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
@@ skipping 86 matching lines @@
           font-family: consolas, courier, monospace;
           font-size: 12px;
           white-space: pre;
           overflow-x: auto;
         }''',
       new ObjectCommonElement(_object.isolate, _object,
                           new RetainedSizeRepository(),
                           new ReachableSizeRepository(),
                           new InboundReferencesRepository(),
                           new RetainingPathRepository(),
-                          new InstanceRepository(_object.isolate),
+                          new InstanceRepository(),
                           queue: ObservatoryApplication.app.queue)
     ];
   }
 }