Move example fn widgets into sky/framework/components

sky/framework/components/toolbar.dart

Index: sky/framework/components/toolbar.dart
diff --git a/sky/examples/fn/widgets/toolbar.dart b/sky/framework/components/toolbar.dart
similarity index 63%
rename from sky/examples/fn/widgets/toolbar.dart
rename to sky/framework/components/toolbar.dart
index c840a4935854417b69e953f0d4129ebf0510c366..23040bd3b55f8218bdfe3e08a6b01ce6ec18ee37 100644
--- a/sky/examples/fn/widgets/toolbar.dart
+++ b/sky/framework/components/toolbar.dart
@@ -1,7 +1,12 @@
-part of widgets;
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
 
-class Toolbar extends Component {
+import '../fn.dart';
+import '../theme/colors.dart';
+import '../theme/shadows.dart';
 
+class Toolbar extends Component {
   List<Node> children;
 
   static final Style _style = new Style('''