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

Source/core/svg/graphics/filters/SVGFEImage.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2010 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2013 Google Inc. 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 20 matching lines @@
 namespace blink {
 
 class Image;
 class LayoutObject;
 
 class FEImage final : public FilterEffect {
 public:
     static PassRefPtrWillBeRawPtr<FEImage> createWithImage(Filter*, PassRefPtr<Image>, PassRefPtrWillBeRawPtr<SVGPreserveAspectRatio>);
     static PassRefPtrWillBeRawPtr<FEImage> createWithIRIReference(Filter*, TreeScope&, const String&, PassRefPtrWillBeRawPtr<SVGPreserveAspectRatio>);
 
-    virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedRect) override;
+    FloatRect determineAbsolutePaintRect(const FloatRect& requestedRect) override;
 
-    virtual FilterEffectType filterEffectType() const override { return FilterEffectTypeImage; }
+    FilterEffectType filterEffectType() const override { return FilterEffectTypeImage; }
 
     // feImage does not perform color interpolation of any kind, so doesn't
     // depend on the value of color-interpolation-filters.
-    virtual void setOperatingColorSpace(ColorSpace) override { }
+    void setOperatingColorSpace(ColorSpace) override { }
 
-    virtual TextStream& externalRepresentation(TextStream&, int indention) const override;
-    virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) override;
+    TextStream& externalRepresentation(TextStream&, int indention) const override;
+    PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) override;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    virtual ~FEImage() { }
+    ~FEImage() override {}
     FEImage(Filter*, PassRefPtr<Image>, PassRefPtrWillBeRawPtr<SVGPreserveAspectRatio>);
     FEImage(Filter*, TreeScope&, const String&, PassRefPtrWillBeRawPtr<SVGPreserveAspectRatio>);
     LayoutObject* referencedLayoutObject() const;
 
     PassRefPtr<SkImageFilter> createImageFilterForLayoutObject(LayoutObject&, SkiaImageFilterBuilder*);
 
     RefPtr<Image> m_image;
 
     // m_treeScope will never be a dangling reference. See https://bugs.webkit.org/show_bug.cgi?id=99243
     // FIXME: Oilpan: turn into a (weak) member?
     TreeScope* m_treeScope;
     String m_href;
     RefPtrWillBeMember<SVGPreserveAspectRatio> m_preserveAspectRatio;
 };
 
 } // namespace blink
 
 #endif // SVGFEImage_h