Update the navbar in the observatory

runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart

Index: runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart
diff --git a/runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart b/runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart
index 96ebf2773be9c42892a89911c73a18720044cdfb..e281a0720e365990c91901e664e1a4529722c367 100644
--- a/runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart
+++ b/runtime/bin/vmservice/client/lib/src/observatory_elements/heap_profile.dart
@@ -222,7 +222,7 @@ class HeapProfileElement extends ObservatoryElement {
     throw new FallThroughError();
   }
 
-  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) {
@@ -235,7 +235,7 @@ class HeapProfileElement extends ObservatoryElement {
       profile = response;
     }).catchError((e, st) {
       Logger.root.info('$e $st');
-    });
+    }).whenComplete(done);
   }
 
   void resetAccumulator(Event e, var detail, Node target) {