Move rendering/RenderObject to layout/LayoutObject.

Source/core/dom/Element.h

Index: Source/core/dom/Element.h
diff --git a/Source/core/dom/Element.h b/Source/core/dom/Element.h
index 7919c1e0bb954ccfe7639c4e1fc4ebfe2dedd1d3..7508cb0453e10fad016fb4ec2eeccfbbfc22c48a 100644
--- a/Source/core/dom/Element.h
+++ b/Source/core/dom/Element.h
@@ -310,7 +310,8 @@ public:
 
     virtual void attach(const AttachContext& = AttachContext()) override;
     virtual void detach(const AttachContext& = AttachContext()) override;
-    virtual RenderObject* createRenderer(const RenderStyle&);
+
+    virtual LayoutObject* createRenderer(const RenderStyle&);
     virtual bool rendererIsNeeded(const RenderStyle&);
     void recalcStyle(StyleRecalcChange, Text* nextTextSibling = nullptr);
     void pseudoStateChanged(CSSSelector::PseudoType);
@@ -415,7 +416,7 @@ public:
     void beginParsingChildren() { setIsFinishedParsingChildren(false); }
 
     PseudoElement* pseudoElement(PseudoId) const;
-    RenderObject* pseudoElementRenderer(PseudoId) const;
+    LayoutObject* pseudoElementRenderer(PseudoId) const;
 
     virtual bool matchesReadOnlyPseudoClass() const { return false; }
     virtual bool matchesReadWritePseudoClass() const { return false; }
@@ -526,7 +527,7 @@ protected:
     // Subclasses may override this method to affect focusability. Unlike
     // supportsFocus, this method must be called on an up-to-date layout, so it
     // may use the renderer to reason about focusability. This method cannot be
-    // moved to RenderObject because some focusable nodes don't have renderers,
+    // moved to LayoutObject because some focusable nodes don't have renderers,
     // e.g., HTMLOptionElement.
     virtual bool rendererIsFocusable() const;