[Line Layout API] Use LineLayoutItem consistently in RootInlineBox::childRemoved

Source/core/layout/line/RootInlineBox.cpp

 /*
  * Copyright (C) 2003, 2006, 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 164 matching lines @@
     m_lineBottom += blockDirectionDelta;
     m_lineTopWithLeading += blockDirectionDelta;
     m_lineBottomWithLeading += blockDirectionDelta;
     m_selectionBottom += blockDirectionDelta;
     if (hasEllipsisBox())
         ellipsisBox()->move(delta);
 }
 
 void RootInlineBox::childRemoved(InlineBox* box)
 {
-    if (&box->layoutObject() == m_lineBreakObj)
+    if (box->lineLayoutItem() == m_lineBreakObj)
         setLineBreakInfo(0, 0, BidiStatus());
 
-    for (RootInlineBox* prev = prevRootBox(); prev && prev->lineBreakObj() == &box->layoutObject(); prev = prev->prevRootBox()) {
+    for (RootInlineBox* prev = prevRootBox(); prev && prev->lineBreakObj() == box->lineLayoutItem(); prev = prev->prevRootBox()) {
         prev->setLineBreakInfo(0, 0, BidiStatus());
         prev->markDirty();
     }
 }
 
 LayoutUnit RootInlineBox::alignBoxesInBlockDirection(LayoutUnit heightOfBlock, GlyphOverflowAndFallbackFontsMap& textBoxDataMap, VerticalPositionCache& verticalPositionCache)
 {
     // SVG will handle vertical alignment on its own.
     if (isSVGRootInlineBox())
         return 0;
@@ skipping 649 matching lines @@
     endBox = nullptr;
     return nullptr;
 }
 
 const char* RootInlineBox::boxName() const
 {
     return "RootInlineBox";
 }
 
 } // namespace blink