Move RenderParagraph into layout2.dart

sky/examples/raw/render_paragraph.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 'dart:sky';
 import 'package:sky/framework/app.dart';
 import 'package:sky/framework/layout2.dart';
 
-class RenderParagraph extends RenderDecoratedBox {
-  final String text;
-  LayoutRoot _layoutRoot = new LayoutRoot();
-  Document _document;
-
-  RenderParagraph(String this.text) :
-   super(new BoxDecoration(backgroundColor: 0xFFFFFFFF)) {
-    _document = new Document();
-    _layoutRoot.rootElement = _document.createElement('p');
-    _layoutRoot.rootElement.appendChild(_document.createText(this.text));
-  }
-
-  void performLayout() {
-    _layoutRoot.maxWidth = constraints.maxWidth;
-    _layoutRoot.minWidth = constraints.minWidth;
-    _layoutRoot.layout();
-    width = _layoutRoot.rootElement.width;
-    height = _layoutRoot.rootElement.height;
-  }
-
-  void hitTestChildren(HitTestResult result, { double x, double y }) {
-    // defaultHitTestChildren(result, x: x, y: y);
-  }
-
-  void paint(RenderNodeDisplayList canvas) {
-    super.paint(canvas);
-    _layoutRoot.paint(canvas);
-  }
-}
-
 class RenderSolidColor extends RenderDecoratedBox {
   final double desiredHeight;
   final double desiredWidth;
   final int backgroundColor;
 
   RenderSolidColor(int backgroundColor, { this.desiredHeight: double.INFINITY,
                                           this.desiredWidth: double.INFINITY })
       : backgroundColor = backgroundColor,
         super(new BoxDecoration(backgroundColor: backgroundColor));
 
@@ skipping 33 matching lines @@
 andouille leberkas capicola meatloaf. Chicken pig ball tip pork picanha bresaola
 alcatra. Pork pork belly alcatra, flank chuck drumstick biltong doner jowl.
 Pancetta meatball tongue tenderloin rump tail jowl boudin.""";
 
   child = new RenderParagraph(meatyString);
   root.add(child);
   child.parentData.flex = 1;
 
   app = new AppView(root);
 }