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

Source/core/rendering/InlineBox.h

 /*
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011 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 12 matching lines @@
 
 #include "core/rendering/RenderBoxModelObject.h"
 #include "platform/text/TextDirection.h"
 
 namespace WebCore {
 
 class HitTestRequest;
 class HitTestResult;
 class RootInlineBox;
 
+enum MarkLineBoxes { MarkLineBoxesDirty, DontMarkLineBoxes };
+
 // InlineBox represents a rectangle that occurs on a line.  It corresponds to
 // some RenderObject (i.e., it represents a portion of that RenderObject).
 class InlineBox {
     WTF_MAKE_NONCOPYABLE(InlineBox);
 public:
     InlineBox(RenderObject& obj)
         : m_next(0)
         , m_prev(0)
         , m_parent(0)
         , m_renderer(obj)
@@ skipping 97 matching lines @@
     }
 
     bool isConstructed() { return m_bitfields.constructed(); }
     virtual void setConstructed() { m_bitfields.setConstructed(true); }
 
     void setExtracted(bool extracted = true) { m_bitfields.setExtracted(extracted); }
 
     void setFirstLineStyleBit(bool firstLine) { m_bitfields.setFirstLine(firstLine); }
     bool isFirstLineStyle() const { return m_bitfields.firstLine(); }
 
-    void remove();
+    void remove(MarkLineBoxes = MarkLineBoxesDirty);
 
     InlineBox* nextOnLine() const { return m_next; }
     InlineBox* prevOnLine() const { return m_prev; }
     void setNextOnLine(InlineBox* next)
     {
         ASSERT(m_parent || !next);
         m_next = next;
     }
     void setPrevOnLine(InlineBox* prev)
     {
@@ skipping 282 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::InlineBox*);
 void showLineTree(const WebCore::InlineBox*);
 #endif
 
 #endif // InlineBox_h