Move painting code from RenderBoxModelObject into BoxPainter.

Source/core/rendering/RenderBox.h

Index: Source/core/rendering/RenderBox.h
diff --git a/Source/core/rendering/RenderBox.h b/Source/core/rendering/RenderBox.h
index 73e2bc3f6d1a25b7fccd86504f4fb48f4ff522cd..d01b69c084ea851a46fcbc06c44cebe0f2b9cda1 100644
--- a/Source/core/rendering/RenderBox.h
+++ b/Source/core/rendering/RenderBox.h
@@ -632,7 +632,7 @@ protected:
     virtual void updateFromStyle() OVERRIDE;
 
     // Returns false if it could not cheaply compute the extent (e.g. fixed background), in which case the returned rect may be incorrect.
-    bool getBackgroundPaintedExtent(LayoutRect&) const;
+    bool getBackgroundPaintedExtent(LayoutRect&);

[chrishtr, 2014/09/10 21:56:32]

This is fallout from BoxPainter::m_renderBox not yet being const.

[pdr., 2014/09/11 05:59:13]

Could we add a fixme here so we don't forget to fix it up?

[chrishtr, 2014/09/11 17:45:53]

Done.

     virtual bool foregroundIsKnownToBeOpaqueInRect(const LayoutRect& localRect, unsigned maxDepthToTest) const;
     virtual bool computeBackgroundIsKnownToBeObscured() OVERRIDE;