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

sky/sdk/lib/framework/rendering/stack.dart

Index: sky/sdk/lib/framework/rendering/stack.dart
diff --git a/sky/sdk/lib/framework/rendering/stack.dart b/sky/sdk/lib/framework/rendering/stack.dart
index ed8377b00e580465a4e43e4f0b472cd29f2ab2ed..455875888c23dc9f9bcda8704d9f1fa80b273dea 100644
--- a/sky/sdk/lib/framework/rendering/stack.dart
+++ b/sky/sdk/lib/framework/rendering/stack.dart
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 import 'dart:math' as math;
+import 'dart:sky' as sky;

[Hixie, 2015/06/18 00:07:10]

If we don't subclass Canvas to have a paintChild() method (as I think we
should), then we should at least have object.dart reexport it so that we don't
have to import dart:sky everywhere.

[iansf, 2015/06/20 00:02:38]

Acknowledged.

 
 import 'box.dart';
 import 'object.dart';
@@ -193,7 +194,7 @@ class RenderStack extends RenderBox with ContainerRenderObjectMixin<RenderBox, S
     defaultHitTestChildren(result, position: position);
   }
 
-  void paint(RenderObjectDisplayList canvas) {
+  void paint(sky.Canvas canvas) {
     defaultPaint(canvas);
   }
 }