Move rendering/RenderBox to layout/LayoutBox.

Source/core/layout/line/LineBreaker.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 28 matching lines @@
     LineBreaker(RenderBlockFlow* block)
         : m_block(block)
     {
         reset();
     }
 
     InlineIterator nextLineBreak(InlineBidiResolver&, LineInfo&, LayoutTextInfo&,
         FloatingObject* lastFloatFromPreviousLine, WordMeasurements&);
 
     bool lineWasHyphenated() { return m_hyphenated; }
-    const Vector<RenderBox*>& positionedObjects() { return m_positionedObjects; }
+    const Vector<LayoutBox*>& positionedObjects() { return m_positionedObjects; }
     EClear clear() { return m_clear; }
 private:
     void reset();
 
     void skipLeadingWhitespace(InlineBidiResolver&, LineInfo&, FloatingObject* lastFloatFromPreviousLine, LineWidth&);
 
     RenderBlockFlow* m_block;
     bool m_hyphenated;
     EClear m_clear;
-    Vector<RenderBox*> m_positionedObjects;
+    Vector<LayoutBox*> m_positionedObjects;
 };
 
 }
 
 #endif // LineBreaker_h