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

Source/core/svg/SVGPathStringSource.h

Index: Source/core/svg/SVGPathStringSource.h
diff --git a/Source/core/svg/SVGPathStringSource.h b/Source/core/svg/SVGPathStringSource.h
index 599d442a0ac56a81ff434559528f074daa41b2ab..482546cb9390604d32cbd6f9a010549eb2da8244 100644
--- a/Source/core/svg/SVGPathStringSource.h
+++ b/Source/core/svg/SVGPathStringSource.h
@@ -31,9 +31,9 @@ public:
     explicit SVGPathStringSource(const String&);
 
 private:
-    virtual bool hasMoreData() const override;
-    virtual SVGPathSegType peekSegmentType() override;
-    virtual PathSegmentData parseSegment() override;
+    bool hasMoreData() const override;
+    SVGPathSegType peekSegmentType() override;
+    PathSegmentData parseSegment() override;
 
     void eatWhitespace();
     float parseNumberWithError();