Clean up a bunch of our Dart code.

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

Index: sky/sdk/lib/framework/components2/drawer.dart
diff --git a/sky/sdk/lib/framework/components2/drawer.dart b/sky/sdk/lib/framework/components2/drawer.dart
index f3400054d24c5a1e3c39b4bcc375e24cb2f61f2f..222be067875fcd463c3780e7928e06fcecda487c 100644
--- a/sky/sdk/lib/framework/components2/drawer.dart
+++ b/sky/sdk/lib/framework/components2/drawer.dart
@@ -89,14 +89,10 @@ class DrawerController {
     if (distance > 0)
       position.animateTo(targetPosition, duration, curve: linear);
   }
+
 }
 
 class Drawer extends AnimatedComponent {
-  List<UINode> children;
-  int level;
-  DrawerController controller;
-
-  double _position;
 
   Drawer({
     Object key,
@@ -109,6 +105,12 @@ class Drawer extends AnimatedComponent {
     });
   }
 
+  List<UINode> children;
+  int level;
+  DrawerController controller;
+
+  double _position;
+
   UINode build() {
     Matrix4 transform = new Matrix4.identity();
     transform.translate(_position);
@@ -141,4 +143,5 @@ class Drawer extends AnimatedComponent {
       onPointerCancel: controller.handlePointerCancel
     );
   }
+
 }