Decouple Canvas from DisplayList and map Picture and PictureRecorder more directly to their Skia co…

sky/examples/raw/spinning_square.dart

Index: sky/examples/raw/spinning_square.dart
diff --git a/sky/examples/raw/spinning_square.dart b/sky/examples/raw/spinning_square.dart
index 24c3191f51f57ef787b45d0a20604368b4a03cc2..d1058f6721d4e7385bdc7b25490b5c3c4dde564a 100644
--- a/sky/examples/raw/spinning_square.dart
+++ b/sky/examples/raw/spinning_square.dart
@@ -5,6 +5,8 @@
 import 'dart:sky';
 import 'dart:math' as math;
 
+import 'package:sky/rendering/object.dart';

[abarth-chromium, 2015/06/23 02:28:45]

ditto 

[iansf, 2015/06/23 22:46:09]

Done.

+
 double timeBase = null;
 
 void beginFrame(double timeStamp) {
@@ -12,12 +14,13 @@ void beginFrame(double timeStamp) {
   if (timeBase == null)
     timeBase = timeStamp;
   double delta = timeStamp - timeBase;
-  PictureRecorder canvas = new PictureRecorder(view.width, view.height);
+  PictureRecorder recorder = new PictureRecorder();
+  RenderCanvas canvas = new RenderCanvas(recorder, view.width, view.height);
   canvas.translate(view.width / 2.0, view.height / 2.0);
   canvas.rotate(math.PI * delta / 1800);
   canvas.drawRect(new Rect.fromLTRB(-100.0, -100.0, 100.0, 100.0),
                   new Paint()..color = const Color.fromARGB(255, 0, 255, 0));
-  view.picture = canvas.endRecording();
+  view.picture = recorder.endRecording();
   view.scheduleFrame();
   tracing.end('beginFrame');
 }