Remove legacy markup box behavior when line-clamping.

Source/core/layout/line/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 75 matching lines @@
     unsigned lineBreakPos() const { return m_lineBreakPos; }
     void setLineBreakPos(unsigned p) { m_lineBreakPos = p; }
 
     using InlineBox::endsWithBreak;
     using InlineBox::setEndsWithBreak;
 
     void childRemoved(InlineBox*);
 
     bool lineCanAccommodateEllipsis(bool ltr, int blockEdge, int lineBoxEdge, int ellipsisWidth);
     // Return the truncatedWidth, the width of the truncated text + ellipsis.
-    FloatWillBeLayoutUnit placeEllipsis(const AtomicString& ellipsisStr, bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth, InlineBox* markupBox = 0);
+    FloatWillBeLayoutUnit placeEllipsis(const AtomicString& ellipsisStr, bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth);
     // Return the position of the EllipsisBox or -1.
     virtual FloatWillBeLayoutUnit placeEllipsisBox(bool ltr, FloatWillBeLayoutUnit blockLeftEdge, FloatWillBeLayoutUnit blockRightEdge, FloatWillBeLayoutUnit ellipsisWidth, FloatWillBeLayoutUnit &truncatedWidth, bool& foundBox) override final;
 
     using InlineBox::hasEllipsisBox;
     EllipsisBox* ellipsisBox() const;
 
     virtual void clearTruncation() override final;
 
     virtual int baselinePosition(FontBaseline baselineType) const override final;
     virtual LayoutUnit lineHeight() const override final;
@@ skipping 90 matching lines @@
     LayoutUnit m_lineBottom;
     LayoutUnit m_lineTopWithLeading;
     LayoutUnit m_lineBottomWithLeading;
     LayoutUnit m_selectionBottom;
     LayoutUnit m_paginationStrut;
 };
 
 } // namespace blink
 
 #endif // RootInlineBox_h