Omit "int" when using "unsigned" modifier

Source/core/rendering/RenderObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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
@@ skipping 821 matching lines @@
     // If multiple-column layout results in applying an offset to the given point, add the same
     // offset to the given size.
     virtual void adjustForColumns(LayoutSize&, const LayoutPoint&) const { }
     LayoutSize offsetForColumns(const LayoutPoint& point) const
     {
         LayoutSize offset;
         adjustForColumns(offset, point);
         return offset;
     }
 
-    virtual unsigned int length() const { return 1; }
+    virtual unsigned length() const { return 1; }
 
     bool isFloatingOrOutOfFlowPositioned() const { return (isFloating() || isOutOfFlowPositioned()); }
 
     bool isTransparent() const { return style()->opacity() < 1.0f; }
     float opacity() const { return style()->opacity(); }
 
     bool hasReflection() const { return m_bitfields.hasReflection(); }
 
     // Applied as a "slop" to dirty rect checks during the outline painting phase's dirty-rect checks.
     int maximalOutlineSize(PaintPhase) const;
@@ skipping 564 matching lines @@
 void showTree(const WebCore::RenderObject*);
 void showLineTree(const WebCore::RenderObject*);
 void showRenderTree(const WebCore::RenderObject* object1);
 // We don't make object2 an optional parameter so that showRenderTree
 // can be called from gdb easily.
 void showRenderTree(const WebCore::RenderObject* object1, const WebCore::RenderObject* object2);
 
 #endif
 
 #endif // RenderObject_h