Remove support for -webkit-line-clamp

Source/core/rendering/RenderDeprecatedFlexibleBox.h

 /*
  * This file is part of the render object implementation for KHTML.
  *
  * Copyright (C) 2003 Apple Computer, Inc.
  *
  * 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 20 matching lines @@
 
 class RenderDeprecatedFlexibleBox FINAL : public RenderBlock {
 public:
     RenderDeprecatedFlexibleBox(Element*);
     virtual ~RenderDeprecatedFlexibleBox();
 
     static RenderDeprecatedFlexibleBox* createAnonymous(Document*);
 
     virtual const char* renderName() const;
 
-    virtual void styleWillChange(StyleDifference, const RenderStyle* newStyle) OVERRIDE;
-
     virtual void layoutBlock(bool relayoutChildren, LayoutUnit pageHeight = 0);
     void layoutHorizontalBox(bool relayoutChildren);
     void layoutVerticalBox(bool relayoutChildren);
 
     virtual bool avoidsFloats() const { return true; }
     virtual bool isDeprecatedFlexibleBox() const { return true; }
     virtual bool isStretchingChildren() const { return m_stretchingChildren; }
     virtual bool canCollapseAnonymousBlockChild() const OVERRIDE { return false; }
 
     void placeChild(RenderBox* child, const LayoutPoint& location);
 
 protected:
     virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const OVERRIDE;
     virtual void computePreferredLogicalWidths() OVERRIDE;
 
     LayoutUnit allowedChildFlex(RenderBox* child, bool expanding, unsigned group);
 
     bool hasMultipleLines() const { return style()->boxLines() == MULTIPLE; }
     bool isVertical() const { return style()->boxOrient() == VERTICAL; }
     bool isHorizontal() const { return style()->boxOrient() == HORIZONTAL; }
 
     bool m_stretchingChildren;
 
 private:
     virtual bool supportsPartialLayout() const OVERRIDE { return false; }
-
-    void applyLineClamp(FlexBoxIterator&, bool relayoutChildren);
-    void clearLineClamp();
 };
 
 } // namespace WebCore
 
 #endif // RenderDeprecatedFlexibleBox_h