| Index: sky/sdk/lib/rendering/stack.dart | 
| diff --git a/sky/sdk/lib/rendering/stack.dart b/sky/sdk/lib/rendering/stack.dart | 
| index ed8377b00e580465a4e43e4f0b472cd29f2ab2ed..72a7cb62665d6fdda0596cc108c47d02d3660ba5 100644 | 
| --- a/sky/sdk/lib/rendering/stack.dart | 
| +++ b/sky/sdk/lib/rendering/stack.dart | 
| @@ -193,7 +193,7 @@ class RenderStack extends RenderBox with ContainerRenderObjectMixin<RenderBox, S | 
| defaultHitTestChildren(result, position: position); | 
| } | 
|  | 
| -  void paint(RenderObjectDisplayList canvas) { | 
| +  void paint(RenderCanvas canvas) { | 
| defaultPaint(canvas); | 
| } | 
| } | 
|  |