Divorce PaintInvalidationState from LayoutState

Source/core/rendering/RenderLayer.h

Index: Source/core/rendering/RenderLayer.h
diff --git a/Source/core/rendering/RenderLayer.h b/Source/core/rendering/RenderLayer.h
index e6e51ab8edd271efdae458d3d332c23765bd2fff..7eac4bd65528a2cbd0acdf36558e5763932067b8 100644
--- a/Source/core/rendering/RenderLayer.h
+++ b/Source/core/rendering/RenderLayer.h
@@ -339,15 +339,15 @@ public:
     // Computes the position of the given render object in the space of |paintInvalidationContainer|.
     // FIXME: invert the logic to have paint invalidation containers take care of painting objects into them, rather than the reverse.
     // This will allow us to clean up this static method messiness.
-    static LayoutPoint positionFromPaintInvalidationContainer(const RenderObject*, const RenderLayerModelObject* paintInvalidationContainer);
+    static LayoutPoint positionFromPaintInvalidationContainer(const RenderObject*, const RenderLayerModelObject* paintInvalidationContainer, const InvalidationTreeWalkState* = 0);
 
     static void mapRectToPaintBackingCoordinates(const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&);
 
     // Adjusts the given rect (in the coordinate space of the RenderObject) to the coordinate space of |paintInvalidationContainer|'s GraphicsLayer backing.
-    static void mapRectToPaintInvalidationBacking(const RenderObject*, const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&);
+    static void mapRectToPaintInvalidationBacking(const RenderObject*, const RenderLayerModelObject* paintInvalidationContainer, LayoutRect&, const InvalidationTreeWalkState* = 0);
 
     // Computes the bounding paint invalidation rect for |renderObject|, in the coordinate space of |paintInvalidationContainer|'s GraphicsLayer backing.
-    static LayoutRect computePaintInvalidationRect(const RenderObject*, const RenderLayer* paintInvalidationContainer);
+    static LayoutRect computePaintInvalidationRect(const RenderObject*, const RenderLayer* paintInvalidationContainer, const InvalidationTreeWalkState* = 0);
 
     bool paintsWithTransparency(PaintBehavior paintBehavior) const
     {