Update SVG classes to use OVERRIDE / FINAL when needed

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

Index: Source/core/svg/graphics/filters/SVGFilter.h
diff --git a/Source/core/svg/graphics/filters/SVGFilter.h b/Source/core/svg/graphics/filters/SVGFilter.h
index ad30b39218c92803f1c74868c2ea58e053d9edb0..98fbe2e9945fd4e946538ab7b68d80e8a001fd92 100644
--- a/Source/core/svg/graphics/filters/SVGFilter.h
+++ b/Source/core/svg/graphics/filters/SVGFilter.h
@@ -32,14 +32,14 @@
 
 namespace WebCore {
 
-class SVGFilter : public Filter {
+class SVGFilter FINAL : public Filter {
 public:
     static PassRefPtr<SVGFilter> create(const AffineTransform&, const FloatRect&, const FloatRect&, const FloatRect&, bool);
 
-    virtual float applyHorizontalScale(float value) const;
-    virtual float applyVerticalScale(float value) const;
+    virtual float applyHorizontalScale(float value) const OVERRIDE;
+    virtual float applyVerticalScale(float value) const OVERRIDE;
 
-    virtual FloatRect sourceImageRect() const { return m_absoluteSourceDrawingRegion; }
+    virtual FloatRect sourceImageRect() const OVERRIDE { return m_absoluteSourceDrawingRegion; }
     FloatRect targetBoundingBox() const { return m_targetBoundingBox; }
 
 private: