Update SVG classes to use OVERRIDE / FINAL when needed

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

Index: Source/core/svg/graphics/filters/SVGFEImage.h
diff --git a/Source/core/svg/graphics/filters/SVGFEImage.h b/Source/core/svg/graphics/filters/SVGFEImage.h
index 281d356be17adb8677ea9594d78b68771fdde9dd..8b9c01b03f8083cf7d118405b7e01ea9a0ab8b34 100644
--- a/Source/core/svg/graphics/filters/SVGFEImage.h
+++ b/Source/core/svg/graphics/filters/SVGFEImage.h
@@ -33,16 +33,16 @@ class Document;
 class Image;
 class RenderObject;
 
-class FEImage : public FilterEffect {
+class FEImage FINAL : public FilterEffect {
 public:
     static PassRefPtr<FEImage> createWithImage(Filter*, PassRefPtr<Image>, const SVGPreserveAspectRatio&);
     static PassRefPtr<FEImage> createWithIRIReference(Filter*, Document&, const String&, const SVGPreserveAspectRatio&);
 
     virtual FloatRect determineAbsolutePaintRect(const FloatRect& requestedRect) OVERRIDE;
 
-    virtual FilterEffectType filterEffectType() const { return FilterEffectTypeImage; }
+    virtual FilterEffectType filterEffectType() const OVERRIDE { return FilterEffectTypeImage; }
 
-    virtual TextStream& externalRepresentation(TextStream&, int indention) const;
+    virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE;
     virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
 
 private: