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

Source/core/layout/shapes/RasterShape.h

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 69 matching lines @@
 class RasterShape final : public Shape {
     WTF_MAKE_NONCOPYABLE(RasterShape);
 public:
     RasterShape(PassOwnPtr<RasterShapeIntervals> intervals, const IntSize& marginRectSize)
         : m_intervals(intervals)
         , m_marginRectSize(marginRectSize)
     {
         m_intervals->initializeBounds();
     }
 
-    virtual LayoutRect shapeMarginLogicalBoundingBox() const override { return static_cast<LayoutRect>(marginIntervals().bounds()); }
-    virtual bool isEmpty() const override { return m_intervals->isEmpty(); }
-    virtual LineSegment getExcludedInterval(LayoutUnit logicalTop, LayoutUnit logicalHeight) const override;
-    virtual void buildDisplayPaths(DisplayPaths& paths) const override
+    LayoutRect shapeMarginLogicalBoundingBox() const override { return static_cast<LayoutRect>(marginIntervals().bounds()); }
+    bool isEmpty() const override { return m_intervals->isEmpty(); }
+    LineSegment getExcludedInterval(LayoutUnit logicalTop, LayoutUnit logicalHeight) const override;
+    void buildDisplayPaths(DisplayPaths& paths) const override
     {
         m_intervals->buildBoundsPath(paths.shape);
         if (shapeMargin())
             marginIntervals().buildBoundsPath(paths.marginShape);
     }
 
 private:
     const RasterShapeIntervals& marginIntervals() const;
 
     OwnPtr<RasterShapeIntervals> m_intervals;
     mutable OwnPtr<RasterShapeIntervals> m_marginIntervals;
     IntSize m_marginRectSize;
 };
 
 } // namespace blink
 
 #endif // RasterShape_h