Update rendering classes to use OVERRIDE / FINAL when needed

Source/core/rendering/RenderScrollbarPart.h

 /*
  * Copyright (C) 2008 Apple Inc. 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 21 matching lines @@
 namespace WebCore {
 
 class RenderScrollbar;
 
 class RenderScrollbarPart FINAL : public RenderBlock {
 public:
     static RenderScrollbarPart* createAnonymous(Document*, RenderScrollbar* = 0, ScrollbarPart = NoPart);
 
     virtual ~RenderScrollbarPart();
 
-    virtual const char* renderName() const { return "RenderScrollbarPart"; }
+    virtual const char* renderName() const OVERRIDE { return "RenderScrollbarPart"; }
 
     virtual LayerType layerTypeRequired() const OVERRIDE { return NoLayer; }
 
-    virtual void layout();
+    virtual void layout() OVERRIDE;
 
     void paintIntoRect(GraphicsContext*, const LayoutPoint&, const LayoutRect&);
 
     // Scrollbar parts needs to be rendered at device pixel boundaries.
     virtual LayoutUnit marginTop() const OVERRIDE { ASSERT(isIntegerValue(m_marginBox.top())); return m_marginBox.top(); }
     virtual LayoutUnit marginBottom() const OVERRIDE { ASSERT(isIntegerValue(m_marginBox.bottom())); return m_marginBox.bottom(); }
     virtual LayoutUnit marginLeft() const OVERRIDE { ASSERT(isIntegerValue(m_marginBox.left())); return m_marginBox.left(); }
     virtual LayoutUnit marginRight() const OVERRIDE { ASSERT(isIntegerValue(m_marginBox.right())); return m_marginBox.right(); }
 
-    virtual bool isRenderScrollbarPart() const { return true; }
+    virtual bool isRenderScrollbarPart() const OVERRIDE { return true; }
     RenderObject* rendererOwningScrollbar() const;
 
 protected:
-    virtual void styleWillChange(StyleDifference diff, const RenderStyle* newStyle);
-    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle);
-    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0);
+    virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle) OVERRIDE;
+    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
+    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) OVERRIDE;
 
 private:
     RenderScrollbarPart(RenderScrollbar*, ScrollbarPart);
 
-    virtual void computePreferredLogicalWidths();
+    virtual void computePreferredLogicalWidths() OVERRIDE;
 
     virtual bool supportsPartialLayout() const OVERRIDE { return false; }
 
     void layoutHorizontalPart();
     void layoutVerticalPart();
 
     void computeScrollbarWidth();
     void computeScrollbarHeight();
 
     RenderScrollbar* m_scrollbar;
     ScrollbarPart m_part;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderScrollbarPart, isRenderScrollbarPart());
 
 } // namespace WebCore
 
 #endif // RenderScrollbarPart_h