Move adjustForUnsplittableChild() from RenderBlock to RenderBlockFlow.

Source/core/rendering/RenderBlock.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 449 matching lines @@
 
 protected:
     // A page break is required at some offset due to space shortage in the current fragmentainer.
     void setPageBreak(LayoutUnit offset, LayoutUnit spaceShortage);
 
     // Update minimum page height required to avoid fragmentation where it shouldn't occur (inside
     // unbreakable content, between orphans and widows, etc.). This will be used as a hint to the
     // column balancer to help set a good minimum column height.
     void updateMinimumPageHeight(LayoutUnit offset, LayoutUnit minHeight);
 
-    LayoutUnit adjustForUnsplittableChild(RenderBox* child, LayoutUnit logicalOffset, bool includeMargins = false); // If the child is unsplittable and can't fit on the current page, return the top of the next page/column.
-
     // Adjust from painting offsets to the local coords of this renderer
     void offsetForContents(LayoutPoint&) const;
 
     bool requiresColumns(int desiredColumnCount) const;
 
     virtual bool updateLogicalWidthAndColumnWidth();
 
     virtual bool canCollapseAnonymousBlockChild() const { return true; }
 
 public:
@@ skipping 22 matching lines @@
     // FIXME: This is temporary as we move code that accesses block flow
     // member variables out of RenderBlock and into RenderBlockFlow.
     friend class RenderBlockFlow;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderBlock, isRenderBlock());
 
 } // namespace blink
 
 #endif // RenderBlock_h