Move rendering/RenderObject to layout/LayoutObject.

Source/core/layout/LayerPaintingInfo.h

Index: Source/core/layout/LayerPaintingInfo.h
diff --git a/Source/core/layout/LayerPaintingInfo.h b/Source/core/layout/LayerPaintingInfo.h
index bf4c52a9f67ba2e34ddd01e8945c03b0bff41006..a6351263f605f359b07df9f2f5fd71bb1b9e0315 100644
--- a/Source/core/layout/LayerPaintingInfo.h
+++ b/Source/core/layout/LayerPaintingInfo.h
@@ -74,7 +74,7 @@ typedef unsigned PaintLayerFlags;
 struct LayerPaintingInfo {
     LayerPaintingInfo(Layer* inRootLayer, const LayoutRect& inDirtyRect,
         PaintBehavior inPaintBehavior, const LayoutSize& inSubPixelAccumulation,
-        RenderObject* inPaintingRoot = 0)
+        LayoutObject* inPaintingRoot = 0)
         : rootLayer(inRootLayer)
         , paintingRoot(inPaintingRoot)
         , paintDirtyRect(inDirtyRect)
@@ -83,7 +83,7 @@ struct LayerPaintingInfo {
         , clipToDirtyRect(true)
     { }
     Layer* rootLayer;
-    RenderObject* paintingRoot; // only paint descendants of this object
+    LayoutObject* paintingRoot; // only paint descendants of this object
     LayoutRect paintDirtyRect; // relative to rootLayer;
     LayoutSize subPixelAccumulation;
     PaintBehavior paintBehavior;