Don't mark a positioned object for layout when we've just laid it out.

Source/core/layout/LayoutBox.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2006, 2007 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.
  *
@@ skipping 438 matching lines @@
     // of the containing block.
     void computeMarginsForDirection(MarginDirection forDirection, const LayoutBlock* containingBlock, LayoutUnit containerWidth, LayoutUnit childWidth, LayoutUnit& marginStart, LayoutUnit& marginEnd, Length marginStartLength, Length marginStartEnd) const;
 
     // Used to resolve margins in the containing block's block-flow direction.
     void computeAndSetBlockDirectionMargins(const LayoutBlock* containingBlock);
 
     virtual LayoutUnit offsetFromLogicalTopOfFirstPage() const;
 
     void positionLineBox(InlineBox*);
     void moveWithEdgeOfInlineContainerIfNecessary(bool isHorizontal);
-    void markStaticPositionedBoxForLayout(bool isHorizontal, bool isInline);
 
     virtual InlineBox* createInlineBox();
     void dirtyLineBoxes(bool fullLayout);
 
     // For inline replaced elements, this function returns the inline box that owns us.  Enables
     // the replaced LayoutObject to quickly determine what line it is contained on and to easily
     // iterate over structures on the line.
     InlineBox* inlineBoxWrapper() const { return m_rareData ? m_rareData->m_inlineBoxWrapper : 0; }
     void setInlineBoxWrapper(InlineBox*);
     void deleteLineBoxWrapper();
@@ skipping 453 matching lines @@
         if (UNLIKELY(inlineBoxWrapper() != 0))
             deleteLineBoxWrapper();
     }
 
     ensureRareData().m_inlineBoxWrapper = boxWrapper;
 }
 
 } // namespace blink
 
 #endif // LayoutBox_h