Clean up a bunch of our Dart code.

sky/sdk/lib/framework/components2/drawer_header.dart

Index: sky/sdk/lib/framework/components2/drawer_header.dart
diff --git a/sky/sdk/lib/framework/components2/drawer_header.dart b/sky/sdk/lib/framework/components2/drawer_header.dart
index ac3da43fab133ac34b9a7c6cb26a7949345372e9..31dda11196dcab2b077f6ca91cebeb6803f169c9 100644
--- a/sky/sdk/lib/framework/components2/drawer_header.dart
+++ b/sky/sdk/lib/framework/components2/drawer_header.dart
@@ -8,10 +8,10 @@ import '../theme2/view_configuration.dart';
 
 class DrawerHeader extends Component {
 
-  List<UINode> children;
-
   DrawerHeader({ Object key, this.children }) : super(key: key);
 
+  List<UINode> children;
+
   UINode build() {
     return new Container(
       key: 'drawer-header-outside',
@@ -44,4 +44,5 @@ class DrawerHeader extends Component {
       )
     );
   }
+
 }