Remove 'paginated line width' from RootInlineBox.

Source/core/rendering/RootInlineBox.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 39 matching lines @@
 
     LayoutUnit lineTop() const { return m_lineTop; }
     LayoutUnit lineBottom() const { return m_lineBottom; }
 
     LayoutUnit lineTopWithLeading() const { return m_lineTopWithLeading; }
     LayoutUnit lineBottomWithLeading() const { return m_lineBottomWithLeading; }
 
     LayoutUnit paginationStrut() const { return m_paginationStrut; }
     void setPaginationStrut(LayoutUnit strut) { m_paginationStrut = strut; }
 
-    void setPaginatedLineWidth(LayoutUnit width) { m_paginatedLineWidth = width; }
-
     LayoutUnit selectionTop() const;
     LayoutUnit selectionBottom() const;
     LayoutUnit selectionHeight() const { return max<LayoutUnit>(0, selectionBottom() - selectionTop()); }
 
     LayoutUnit selectionTopAdjustedForPrecedingBlock() const;
     LayoutUnit selectionHeightAdjustedForPrecedingBlock() const { return max<LayoutUnit>(0, selectionBottom() - selectionTopAdjustedForPrecedingBlock()); }
 
     int blockDirectionPointInLine() const;
 
     LayoutUnit alignBoxesInBlockDirection(LayoutUnit heightOfBlock, GlyphOverflowAndFallbackFontsMap&, VerticalPositionCache&);
@@ skipping 122 matching lines @@
     // Floats hanging off the line are pushed into this vector during layout. It is only
     // good for as long as the line has not been marked dirty.
     OwnPtr<Vector<RenderBox*> > m_floats;
 
     LayoutUnit m_lineTop;
     LayoutUnit m_lineBottom;
     LayoutUnit m_lineTopWithLeading;
     LayoutUnit m_lineBottomWithLeading;
     LayoutUnit m_selectionBottom;
     LayoutUnit m_paginationStrut;
-    LayoutUnit m_paginatedLineWidth;
 };
 
 } // namespace blink
 
 #endif // RootInlineBox_h