Clean up a bunch of our Dart code.

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

Index: sky/sdk/lib/framework/components2/floating_action_button.dart
diff --git a/sky/sdk/lib/framework/components2/floating_action_button.dart b/sky/sdk/lib/framework/components2/floating_action_button.dart
index c6611c41cadc98522b4241c869c018cdcba4ca00..e4be516755e90bebe92a8aef6f201ace3b200256 100644
--- a/sky/sdk/lib/framework/components2/floating_action_button.dart
+++ b/sky/sdk/lib/framework/components2/floating_action_button.dart
@@ -13,12 +13,13 @@ import 'material.dart';
 const double _kSize = 56.0;
 
 class FloatingActionButton extends Component {
-  UINode content;
-  int level;
 
   FloatingActionButton({ Object key, this.content, this.level: 0 })
       : super(key: key);
 
+  UINode content;
+  int level;
+
   UINode build() {
     List<UINode> children = [];
 
@@ -43,4 +44,5 @@ class FloatingActionButton extends Component {
           child: new InkWell(children: children))),
       level: level);
   }
+
 }