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

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 13caf7b6f4d6dce628f7d5830410b957a2384392..27cc3de4a62a1407f79619896585519ea20b7459 100644
--- a/Source/core/svg/graphics/filters/SVGFilter.h
+++ b/Source/core/svg/graphics/filters/SVGFilter.h
@@ -36,11 +36,11 @@ class SVGFilter final : public Filter {
 public:
     static PassRefPtrWillBeRawPtr<SVGFilter> create(const IntRect&, const FloatRect&, const FloatRect&, bool);
 
-    virtual float applyHorizontalScale(float value) const override;
-    virtual float applyVerticalScale(float value) const override;
-    virtual FloatPoint3D resolve3dPoint(const FloatPoint3D&) const override;
+    float applyHorizontalScale(float value) const override;
+    float applyVerticalScale(float value) const override;
+    FloatPoint3D resolve3dPoint(const FloatPoint3D&) const override;
 
-    virtual IntRect sourceImageRect() const override { return m_absoluteSourceDrawingRegion; }
+    IntRect sourceImageRect() const override { return m_absoluteSourceDrawingRegion; }
     FloatRect targetBoundingBox() const { return m_targetBoundingBox; }
 
 private: