Rationalize Dart mojo and sky package structure

sky/framework/components/menu_item.dart

Index: sky/framework/components/menu_item.dart
diff --git a/sky/framework/components/menu_item.dart b/sky/framework/components/menu_item.dart
deleted file mode 100644
index eb46a07900be514fbb37acbb609fa709f92e72d9..0000000000000000000000000000000000000000
--- a/sky/framework/components/menu_item.dart
+++ /dev/null
@@ -1,68 +0,0 @@
-// 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 '../layout.dart';
-import 'button_base.dart';
-import 'icon.dart';
-import 'ink_well.dart';
-
-class MenuItem extends ButtonBase {
-  static final Style _style = new Style('''
-    align-items: center;
-    height: 48px;
-    -webkit-user-select: none;'''
-  );
-
-  static final Style _highlightStyle = new Style('''
-    align-items: center;
-    height: 48px;
-    background: rgba(153, 153, 153, 0.4);
-    -webkit-user-select: none;'''
-  );
-
-  static final Style _iconStyle = new Style('''
-    padding: 0px 16px;'''
-  );
-
-  static final Style _labelStyle = new Style('''
-    padding: 0px 16px;'''
-  );
-
-  static final FlexBoxParentData _labelFlex = new FlexBoxParentData()..flex = 1;
-
-  List<UINode> children;
-  String icon;
-  GestureEventListener onGestureTap;
-
-  MenuItem({ Object key, this.icon, this.children, this.onGestureTap }) : super(key: key);
-
-  UINode buildContent() {
-    return new EventListenerNode(
-      new StyleNode(
-        new InkWell(
-          children: [
-            new StyleNode(
-              new Icon(
-                size: 24,
-                type: "${icon}_grey600"
-              ),
-              _iconStyle
-            ),
-            new ParentDataNode(
-              new FlexContainer(
-                direction: FlexDirection.Row,
-                style: _labelStyle,
-                children: children
-              ),
-              _labelFlex
-            )
-          ]
-        ),
-        highlight ? _highlightStyle : _style
-      ),
-      onGestureTap: onGestureTap
-    );
-  }
-}