Update the navbar in the observatory

runtime/bin/vmservice/client/lib/src/observatory_elements/isolate_profile.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 isolate_profile_element;
 
 import 'dart:html';
 import 'package:logging/logging.dart';
 import 'package:observatory/observatory.dart';
 import 'package:polymer/polymer.dart';
@@ skipping 72 matching lines @@
 
   methodCountSelectedChanged(oldValue) {
     var isolateId = app.locationManager.currentIsolateId();
     var isolate = app.isolateManager.getIsolate(isolateId);
     if (isolate == null) {
       return;
     }
     _refresh(isolate);
   }
 
-  void refreshData(Event e, var detail, Node target) {
+  void refresh(var done) {
     var isolateId = app.locationManager.currentIsolateId();
     var isolate = app.isolateManager.getIsolate(isolateId);
     if (isolate == null) {
       Logger.root.info('No isolate found.');
       return;
     }
     var request = '/$isolateId/profile';
     _startRequest();
     app.requestManager.requestMap(request).then((Map profile) {
       assert(profile['type'] == 'Profile');
       var samples = profile['samples'];
       Logger.root.info('Profile contains ${samples} samples.');
       _loadProfileData(isolate, samples, profile);
       _endRequest();
     }).catchError((e) {
       _endRequest();
-    });
+    }).whenComplete(done);
   }
 
   void _loadProfileData(Isolate isolate, int totalSamples, Map response) {
     isolate.profile = new Profile.fromMap(isolate, response);
     _refresh(isolate);
   }
 
   void _refresh(Isolate isolate) {
     _refreshTopMethods(isolate);
     _refreshTree(isolate);
@@ skipping 31 matching lines @@
   }
 
   @observable void toggleExpanded(Event e, var detail, Element target) {
     var row = target.parent;
     if (row is TableRowElement) {
       // Subtract 1 to get 0 based indexing.
       tree.toggle(row.rowIndex - 1);
     }
   }
 }