Update more core classes to use OVERRIDE / FINAL when needed

Source/core/rendering/InlineTextBox.h

 /*
  * (C) 1999 Lars Knoll (knoll@kde.org)
  * (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 76 matching lines @@
     bool getEmphasisMarkPosition(RenderStyle*, TextEmphasisPosition&) const;
 
     LayoutRect logicalOverflowRect() const;
     void setLogicalOverflowRect(const LayoutRect&);
     LayoutUnit logicalTopVisualOverflow() const { return logicalOverflowRect().y(); }
     LayoutUnit logicalBottomVisualOverflow() const { return logicalOverflowRect().maxY(); }
     LayoutUnit logicalLeftVisualOverflow() const { return logicalOverflowRect().x(); }
     LayoutUnit logicalRightVisualOverflow() const { return logicalOverflowRect().maxX(); }
 
 #ifndef NDEBUG
-    virtual void showBox(int = 0) const;
-    virtual const char* boxName() const;
+    virtual void showBox(int = 0) const OVERRIDE;
+    virtual const char* boxName() const OVERRIDE;
 #endif
 
     enum RotationDirection { Counterclockwise, Clockwise };
     static AffineTransform rotation(const FloatRect& boxRect, RotationDirection);
 private:
     LayoutUnit selectionTop();
     LayoutUnit selectionBottom();
     LayoutUnit selectionHeight();
 
     // charactersWithHyphen, if provided, must not be destroyed before the TextRun.
@@ skipping 95 matching lines @@
 
 inline AffineTransform InlineTextBox::rotation(const FloatRect& boxRect, RotationDirection rotationDirection)
 {
     return rotationDirection == Clockwise ? AffineTransform(0, 1, -1, 0, boxRect.x() + boxRect.maxY(), boxRect.maxY() - boxRect.x())
         : AffineTransform(0, -1, 1, 0, boxRect.x() - boxRect.maxY(), boxRect.x() + boxRect.maxY());
 }
 
 } // namespace WebCore
 
 #endif // InlineTextBox_h