Move rendering/RenderBox to layout/LayoutBox.

Source/core/layout/LayoutFrameSet.h

Index: Source/core/layout/LayoutFrameSet.h
diff --git a/Source/core/layout/LayoutFrameSet.h b/Source/core/layout/LayoutFrameSet.h
index f2443f37b138b74a357308f9e2a4c81c778482b9..14019e2382772a2aa565d5a2cadb890c16679311 100644
--- a/Source/core/layout/LayoutFrameSet.h
+++ b/Source/core/layout/LayoutFrameSet.h
@@ -23,7 +23,7 @@
 #ifndef LayoutFrameSet_h
 #define LayoutFrameSet_h
 
-#include "core/rendering/RenderBox.h"
+#include "core/layout/LayoutBox.h"
 
 namespace blink {
 
@@ -53,7 +53,7 @@ private:
     Vector<bool> m_allowBorder;
 };
 
-class LayoutFrameSet final : public RenderBox {
+class LayoutFrameSet final : public LayoutBox {
 public:
     LayoutFrameSet(HTMLFrameSetElement*);
     virtual ~LayoutFrameSet();
@@ -102,7 +102,7 @@ private:
     virtual const LayoutObjectChildList* virtualChildren() const override { return children(); }
 
     virtual const char* renderName() const override { return "LayoutFrameSet"; }
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectFrameSet || RenderBox::isOfType(type); }
+    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectFrameSet || LayoutBox::isOfType(type); }
 
     virtual void layout() override;
     virtual void paint(const PaintInfo&, const LayoutPoint&) override;