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

Source/core/svg/SVGPathBuilder.h

 /*
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * 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
@@ skipping 17 matching lines @@
 
 namespace blink {
 
 class Path;
 
 class SVGPathBuilder final : public SVGPathConsumer {
 public:
     SVGPathBuilder(Path& path) : m_path(path), m_closed(true) { }
 
 private:
-    virtual void incrementPathSegmentCount() override { }
-    virtual bool continueConsuming() override { return true; }
+    void incrementPathSegmentCount() override { }
+    bool continueConsuming() override { return true; }
 
-    virtual void emitSegment(const PathSegmentData&) override;
+    void emitSegment(const PathSegmentData&) override;
 
     Path& m_path;
     bool m_closed;
 };
 
 } // namespace blink
 
 #endif // SVGPathBuilder_h