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

Source/core/layout/shapes/RasterShape.h

Index: Source/core/layout/shapes/RasterShape.h
diff --git a/Source/core/layout/shapes/RasterShape.h b/Source/core/layout/shapes/RasterShape.h
index 20658aff8d1482978d7c9d56edf650be8b37cba9..bf24bd20b425a9336a14b1eada9f29a7c4a0e04d 100644
--- a/Source/core/layout/shapes/RasterShape.h
+++ b/Source/core/layout/shapes/RasterShape.h
@@ -87,10 +87,10 @@ public:
         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())