Rename RenderNode to RenderObject.

sky/examples/raw/touch_demo.dart

Index: sky/examples/raw/touch_demo.dart
diff --git a/sky/examples/raw/touch_demo.dart b/sky/examples/raw/touch_demo.dart
index 58caeea12e03ccde2a757d45696db59d0e816f93..180c327fd9035c46dd46034f7e6d6ab3d206b2e3 100644
--- a/sky/examples/raw/touch_demo.dart
+++ b/sky/examples/raw/touch_demo.dart
@@ -6,7 +6,7 @@ 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 = [
@@ -32,7 +32,7 @@ class Dot {
     radius = 5 + (95 * event.pressure);
   }
 
-  void paint(RenderNodeDisplayList canvas) {
+  void paint(RenderObjectDisplayList canvas) {
     canvas.drawCircle(x, y, radius, _paint);
   }
 }
@@ -65,7 +65,7 @@ class RenderTouchDemo extends RenderBox {
     size = constraints.constrain(new Size.infinite());
   }
 
-  void paint(RenderNodeDisplayList canvas) {
+  void paint(RenderObjectDisplayList canvas) {
     dots.forEach((_, Dot dot) {
       dot.paint(canvas);
     });