diff -r d8a3531bc6b8 -r 433cbbb6a04b uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCanvasVisual.h
--- a/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCanvasVisual.h	Mon Feb 22 17:57:49 2010 +0200
+++ b/uiaccelerator_plat/alf_core_toolkit_api/inc/uiacceltk/HuiCanvasVisual.h	Fri Mar 12 15:47:04 2010 +0200
@@ -418,6 +418,11 @@
     static TBool RecursiveIsExternalContentDrawingEnabled(CHuiVisual* aVisual);
     static TBool RecursiveHasCommandBuffers(CHuiVisual* aVisual);
     
+    void CollectPaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
+    void CollectRecursivePaintedRegion(TRegion& aRecursivePaintRegion, TInt aExcludeCanvasFlags) const;
+    
+    TBool CanSkipDrawing() const;
+
 private: 
 
     struct THuiCanvasVisualData;