anchor.diff:  import 'package:sky/framework/components/input.dart';
   import 'package:sky/framework/components/menu_divider.dart';
   import 'package:sky/framework/components/menu_item.dart';
  +import 'package:sky/framework/components/modal_overlay.dart';
   import 'package:sky/framework/components/popup_menu.dart';
   import 'package:sky/framework/components/scaffold.dart';
   import 'package:sky/framework/debug/tracing.dart';
  
positive.code:     });
    }
  
    void _handleSearchQueryChanged(query) {
      setState(() {
        _searchQuery = query;
      });
    }
  
    void _handleMenuClick(_) {
      setState(() {
        _menuController = new PopupMenuController();
        _menuController.open();
      });
    }
  
  
negative.code:             onGestureTap: _handleSearchBegin),
            new IconButton(
              icon: 'navigation/more_vert_white',
              onGestureTap: _handleMenuShow)
          ]),
        _actionBarStyle);
    }
  