Disentangle Material and InkSplash

sky/framework/components/floating_action_button.dart

 // 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.
 
 import '../fn.dart';
 import '../theme/colors.dart';
 import 'ink_well.dart';
 import 'material.dart';
 
 class FloatingActionButton extends Component {
@@ skipping 23 matching lines @@
 
   FloatingActionButton({ Object key, this.content, this.level: 0 })
       : super(key: key);
 
   Node build() {
     List<Node> children = [];
 
     if (content != null)
       children.add(content);
 
-    return new Container(
-      style: level > 0 ? _style.extend(Material.shadowStyle[level]) : _style,
-      children: [new StyleNode(new InkWell(children: children), _clipStyle)]
-    );
+    return new Material(
+      content: new Container(
+        style: _style,
+        children: [new StyleNode(new InkWell(children: children), _clipStyle)]),
+      level: level);
   }
 }