Move rendering/RenderObject to layout/LayoutObject.

Source/core/rendering/RenderGrid.h

Index: Source/core/rendering/RenderGrid.h
diff --git a/Source/core/rendering/RenderGrid.h b/Source/core/rendering/RenderGrid.h
index 71f01d9b936258e50e688afeef4dab476239abe1..ef8dcc9174d0fdf9133a39705e0e397d307d536a 100644
--- a/Source/core/rendering/RenderGrid.h
+++ b/Source/core/rendering/RenderGrid.h
@@ -62,12 +62,12 @@ public:
 
     typedef void (GridTrack::* AccumulatorGrowFunction)(LayoutUnit);
 private:
-    virtual bool isOfType(RenderObjectType type) const override { return type == RenderObjectRenderGrid || RenderBlock::isOfType(type); }
+    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRenderGrid || RenderBlock::isOfType(type); }
     virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
     virtual void computePreferredLogicalWidths() override;
 
-    virtual void addChild(RenderObject* newChild, RenderObject* beforeChild = 0) override;
-    virtual void removeChild(RenderObject*) override;
+    virtual void addChild(LayoutObject* newChild, LayoutObject* beforeChild = 0) override;
+    virtual void removeChild(LayoutObject*) override;
 
     virtual void styleDidChange(StyleDifference, const RenderStyle*) override;
 
@@ -171,7 +171,7 @@ private:
     HashMap<const RenderBox*, size_t> m_gridItemsIndexesMap;
 };
 
-DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderGrid, isRenderGrid());
+DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderGrid, isRenderGrid());
 
 } // namespace blink