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

Source/core/layout/shapes/BoxShape.h

Index: Source/core/layout/shapes/BoxShape.h
diff --git a/Source/core/layout/shapes/BoxShape.h b/Source/core/layout/shapes/BoxShape.h
index 7acdb0b815e71747624c2874a6f7ba5ef1133bfc..07d30e2223ffb4cd5697b0f4081474de8325e9f3 100644
--- a/Source/core/layout/shapes/BoxShape.h
+++ b/Source/core/layout/shapes/BoxShape.h
@@ -43,10 +43,10 @@ public:
     {
     }
 
-    virtual LayoutRect shapeMarginLogicalBoundingBox() const override;
-    virtual bool isEmpty() const override { return m_bounds.isEmpty(); }
-    virtual LineSegment getExcludedInterval(LayoutUnit logicalTop, LayoutUnit logicalHeight) const override;
-    virtual void buildDisplayPaths(DisplayPaths&) const override;
+    LayoutRect shapeMarginLogicalBoundingBox() const override;
+    bool isEmpty() const override { return m_bounds.isEmpty(); }
+    LineSegment getExcludedInterval(LayoutUnit logicalTop, LayoutUnit logicalHeight) const override;
+    void buildDisplayPaths(DisplayPaths&) const override;
 
 private:
     FloatRoundedRect shapeMarginBounds() const;