Avoid markDirty when removing out-of-flow line boxes.

Source/core/rendering/InlineFlowBox.cpp

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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 159 matching lines @@
             child->clearKnownToHaveNoOverflow();
         }
 
         if (knownToHaveNoOverflow() && child->isInlineFlowBox() && !toInlineFlowBox(child)->knownToHaveNoOverflow())
             clearKnownToHaveNoOverflow();
     }
 
     checkConsistency();
 }
 
-void InlineFlowBox::removeChild(InlineBox* child)
+void InlineFlowBox::removeChild(InlineBox* child, MarkLineBoxes markDirty)
 {
     checkConsistency();
 
-    if (!isDirty())
+    if (markDirty == MarkLineBoxesDirty && !isDirty())
         dirtyLineBoxes();
 
     root().childRemoved(child);
 
     if (child == m_firstChild)
         m_firstChild = child->nextOnLine();
     if (child == m_lastChild)
         m_lastChild = child->prevOnLine();
     if (child->nextOnLine())
         child->nextOnLine()->setPrevOnLine(child->prevOnLine());
@@ skipping 1461 matching lines @@
         ASSERT(child->prevOnLine() == prev);
         prev = child;
     }
     ASSERT(prev == m_lastChild);
 #endif
 }
 
 #endif
 
 } // namespace WebCore