Rename RenderNode to RenderObject.

sky/examples/raw/touch_demo.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:math';
 import 'dart:sky';
 import 'package:sky/framework/app.dart';
 import 'package:sky/framework/rendering/box.dart';
-import 'package:sky/framework/rendering/node.dart';
+import 'package:sky/framework/rendering/object.dart';
 
 // Material design colors. :p
 List<int> colors = [
   0xFF009688,
   0xFFFFC107,
   0xFF9C27B0,
   0xFF03A9F4,
   0xFF673AB7,
   0xFFCDDC39,
 ];
 
 class Dot {
   final Paint _paint;
   double x = 0.0;
   double y = 0.0;
   double radius = 0.0;
 
   Dot({int color}) : _paint = new Paint()..color = color;
 
   void update(PointerEvent event) {
     x = event.x;
     y = event.y;
     radius = 5 + (95 * event.pressure);
   }
 
-  void paint(RenderNodeDisplayList canvas) {
+  void paint(RenderObjectDisplayList canvas) {
     canvas.drawCircle(x, y, radius, _paint);
   }
 }
 
 class RenderTouchDemo extends RenderBox {
   Map<int, Dot> dots = new Map();
 
   RenderTouchDemo();
 
   void handleEvent(sky.Event event) {
@@ skipping 12 matching lines @@
         dots[event.pointer].update(event);
         break;
     }
     markNeedsPaint();
   }
 
   void performLayout() {
     size = constraints.constrain(new Size.infinite());
   }
 
-  void paint(RenderNodeDisplayList canvas) {
+  void paint(RenderObjectDisplayList canvas) {
     dots.forEach((_, Dot dot) {
       dot.paint(canvas);
     });
   }
 }
 
 AppView app;
 
 void main() {
   app = new AppView(new RenderTouchDemo());
 }