Implement measurement using futures

client/samples/swarm/SwarmViews.dart

 // Copyright (c) 2011, 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.
 
 // TODO(jacobr): there is a lot of dead code in this class. Checking is as is
 // and then doing a large pass to remove functionality that doesn't make sense
 // given the UI layout.
 
 /**
  * Front page of Swarm.
@@ skipping 919 matching lines @@
       pageNumberView = addChild(new PageNumberView(pageState));
 
       node.style.opacity = '1';
     } else {
       addChild(dataSourceView);
       addChild(pageNumberView);
       node.style.opacity = '1';
     }
 
     // TODO(jacobr): get rid of this call to reconfigure when it is not needed.
-    dataSourceView.scroller.reconfigure();
+    dataSourceView.scroller.reconfigure(() {});
   }
 
   /**
    * Hides the data sources and shows the loading text.
    */
   void hideSources() {
     if (dataSourceView != null) {
       node.style.opacity = '0.6';
       removeChild(dataSourceView);
       removeChild(pageNumberView);
@@ skipping 15 matching lines @@
    * [Feed].
    */
   DataSourceView findView(Feed dataSource) {
     return dataSourceView.getSubview(dataSourceView.findIndex(dataSource));
   }
 
   bool inCurrentView(Article article) {
     return dataSourceView.findIndex(article.dataSource) != null;
   }
 }