Rendering API cleanup

Source/core/rendering/RenderFlowThread.h

 /*
  * Copyright (C) 2011 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 107 matching lines @@
     virtual RenderMultiColumnSet* columnSetAtBlockOffset(LayoutUnit) const = 0;
 
     bool cachedOffsetFromLogicalTopOfFirstRegion(const RenderBox*, LayoutUnit&) const;
     void setOffsetFromLogicalTopOfFirstRegion(const RenderBox*, LayoutUnit);
     void clearOffsetFromLogicalTopOfFirstRegion(const RenderBox*);
 
     const RenderBox* currentStatePusherRenderBox() const;
 
     RenderMultiColumnSetList m_multiColumnSetList;
 
-    class RenderMultiColumnSetRange {
-    public:
-        RenderMultiColumnSetRange()
-        {
-            setRange(0, 0);
-        }
-
-        RenderMultiColumnSetRange(RenderMultiColumnSet* start, RenderMultiColumnSet* end)
-        {
-            setRange(start, end);
-        }
-
-        void setRange(RenderMultiColumnSet* start, RenderMultiColumnSet* end)
-        {
-            m_startColumnSet = start;
-            m_endColumnSet = end;
-        }
-
-        RenderMultiColumnSet* startColumnSet() const { return m_startColumnSet; }
-        RenderMultiColumnSet* endColumnSet() const { return m_endColumnSet; }
-
-    private:
-        RenderMultiColumnSet* m_startColumnSet;
-        RenderMultiColumnSet* m_endColumnSet;
-    };
-
     typedef PODInterval<LayoutUnit, RenderMultiColumnSet*> MultiColumnSetInterval;
     typedef PODIntervalTree<LayoutUnit, RenderMultiColumnSet*> MultiColumnSetIntervalTree;
 
     class RegionSearchAdapter {
     public:
         RegionSearchAdapter(LayoutUnit offset)
             : m_offset(offset)
             , m_result(0)
         {
         }
@@ skipping 42 matching lines @@
 };
 
 template <> struct ValueToString<RenderMultiColumnSet*> {
     static String string(const RenderMultiColumnSet* value) { return String::format("%p", value); }
 };
 #endif
 
 } // namespace blink
 
 #endif // RenderFlowThread_h