Rename all the things

sky/sdk/lib/framework/widgets/tool_bar.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 '../rendering/flex.dart';
-import '../theme2/shadows.dart';
-import '../theme2/view_configuration.dart';
-import 'basic.dart';
-
-class ToolBar extends Component {
-
-  ToolBar({
-    String key,
-    this.left,
-    this.center,
-    this.right,
-    this.backgroundColor
-  }) : super(key: key);
-
-  final UINode left;
-  final UINode center;
-  final List<UINode> right;
-  final Color backgroundColor;
-
-  UINode build() {
-    List<UINode> children = new List<UINode>();
-    if (left != null)
-      children.add(left);
-
-    if (center != null) {
-      children.add(new FlexExpandingChild(
-        new Padding(child: center, padding: new EdgeDims.only(left: 24.0))));
-    }
-
-    if (right != null)
-      children.addAll(right);
-
-    return new Container(
-      child: new Flex(
-        [new Container(child: new Flex(children), height: kToolBarHeight)],
-        alignItems: FlexAlignItems.flexEnd
-      ),
-      padding: new EdgeDims.symmetric(horizontal: 8.0),
-      decoration: new BoxDecoration(
-        backgroundColor: backgroundColor,
-        boxShadow: shadows[2]
-      )
-    );
-  }
-
-}