Remove LineFragmentationData it's unused

sky/engine/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 36 matching lines @@
     RootInlineBox* prevRootBox() const { return static_cast<RootInlineBox*>(m_prevLineBox); }
 
     virtual void adjustPosition(float dx, float dy) override final;
 
     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 paginatedLineWidth() const { return m_fragmentationData ? m_fragmentationData->m_paginatedLineWidth : LayoutUnit(0); }
-    void setPaginatedLineWidth(LayoutUnit width) { ensureLineFragmentationData()->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 95 matching lines @@
 
     Node* getLogicalStartBoxWithNode(InlineBox*&) const;
     Node* getLogicalEndBoxWithNode(InlineBox*&) const;
 
 #ifndef NDEBUG
     virtual const char* boxName() const override;
 #endif
 private:
     LayoutUnit beforeAnnotationsAdjustment() const;
 
-    struct LineFragmentationData;
-    LineFragmentationData* ensureLineFragmentationData()
-    {
-        if (!m_fragmentationData)
-            m_fragmentationData = adoptPtr(new LineFragmentationData());
-
-        return m_fragmentationData.get();
-    }
-
     // This folds into the padding at the end of InlineFlowBox on 64-bit.
     unsigned m_lineBreakPos;
 
     // Where this line ended.  The exact object and the position within that object are stored so that
     // we can create an InlineIterator beginning just after the end of this line.
     RenderObject* m_lineBreakObj;
     RefPtr<BidiContext> m_lineBreakContext;
 
-    struct LineFragmentationData {
-        WTF_MAKE_NONCOPYABLE(LineFragmentationData); WTF_MAKE_FAST_ALLOCATED;
-    public:
-        LineFragmentationData()
-            : m_paginatedLineWidth(0)
-        {
-
-        }
-
-        LayoutUnit m_paginatedLineWidth;
-    };
-
-    OwnPtr<LineFragmentationData> m_fragmentationData;
-
     LayoutUnit m_lineTop;
     LayoutUnit m_lineBottom;
     LayoutUnit m_lineTopWithLeading;
     LayoutUnit m_lineBottomWithLeading;
     LayoutUnit m_selectionBottom;
 };
 
 } // namespace blink
 
 #endif  // SKY_ENGINE_CORE_RENDERING_ROOTINLINEBOX_H_