Fix virtual/override/final usage in Source/core/layout/.

Source/core/layout/LayoutReplica.h

 /*
  * Copyright (C) 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 18 matching lines @@
 #ifndef LayoutReplica_h
 #define LayoutReplica_h
 
 #include "core/layout/LayoutBox.h"
 
 namespace blink {
 
 class LayoutReplica final : public LayoutBox {
 public:
     static LayoutReplica* createAnonymous(Document*);
+    ~LayoutReplica() override;
 
-    virtual ~LayoutReplica();
+    const char* name() const override { return "LayoutReplica"; }
 
-    virtual const char* name() const override { return "LayoutReplica"; }
+    DeprecatedPaintLayerType layerTypeRequired() const override { return NormalDeprecatedPaintLayer; }
 
-    virtual DeprecatedPaintLayerType layerTypeRequired() const override { return NormalDeprecatedPaintLayer; }
+    void layout() override;
 
-    virtual void layout() override;
-
-    virtual void paint(const PaintInfo&, const LayoutPoint&) override;
+    void paint(const PaintInfo&, const LayoutPoint&) override;
 
 private:
     LayoutReplica();
 
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectReplica || LayoutBox::isOfType(type); }
-    virtual void computePreferredLogicalWidths() override;
+    bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectReplica || LayoutBox::isOfType(type); }
+    void computePreferredLogicalWidths() override;
 
 };
 
 } // namespace blink
 
 #endif // LayoutReplica_h