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

Source/core/svg/SVGPathStringBuilder.h

 /*
  * 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
  * 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 12 matching lines @@
 #include "core/svg/SVGPathConsumer.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
 class SVGPathStringBuilder final : public SVGPathConsumer {
 public:
     String result();
 
 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;
 
     StringBuilder m_stringBuilder;
 };
 
 } // namespace blink
 
 #endif // SVGPathStringBuilder_h