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

Source/core/layout/svg/LayoutSVGHiddenContainer.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 14 matching lines @@
 namespace blink {
 
 class SVGElement;
 
 // This class is for containers which are never drawn, but do need to support style
 // <defs>, <linearGradient>, <radialGradient> are all good examples
 class LayoutSVGHiddenContainer : public LayoutSVGContainer {
 public:
     explicit LayoutSVGHiddenContainer(SVGElement*);
 
-    virtual const char* name() const override { return "LayoutSVGHiddenContainer"; }
+    const char* name() const override { return "LayoutSVGHiddenContainer"; }
 
 protected:
-    virtual void layout() override;
+    void layout() override;
 
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGHiddenContainer || LayoutSVGContainer::isOfType(type); }
+    bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectSVGHiddenContainer || LayoutSVGContainer::isOfType(type); }
 
 private:
-    virtual void paint(const PaintInfo&, const LayoutPoint&) override final;
-    virtual LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject*, const PaintInvalidationState* = nullptr) const override final { return LayoutRect(); }
-    virtual void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const override final;
+    void paint(const PaintInfo&, const LayoutPoint&) final;
+    LayoutRect clippedOverflowRectForPaintInvalidation(const LayoutBoxModelObject*, const PaintInvalidationState* = nullptr) const final { return LayoutRect(); }
+    void absoluteQuads(Vector<FloatQuad>&, bool* wasFixed) const final;
 
-    virtual bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction) override final;
+    bool nodeAtFloatPoint(HitTestResult&, const FloatPoint& pointInParent, HitTestAction) final;
 };
 }
 
 #endif // LayoutSVGHiddenContainer_h