Begin tracking why layout is invalidated

Source/core/layout/LayoutTable.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 428 matching lines @@
     {
         LayoutState state(*this, locationOffset());
         LayoutUnit oldLogicalWidth = logicalWidth();
         LayoutUnit oldLogicalHeight = logicalHeight();
 
         setLogicalHeight(0);
         updateLogicalWidth();
 
         if (logicalWidth() != oldLogicalWidth) {
             for (unsigned i = 0; i < m_captions.size(); i++)
-                layouter.setNeedsLayout(m_captions[i]);
+                layouter.setNeedsLayout(m_captions[i], LayoutInvalidationReason::TableChanged);
         }
         // FIXME: The optimisation below doesn't work since the internal table
         // layout could have changed. We need to add a flag to the table
         // layout that tells us if something has changed in the min max
         // calculations to do it correctly.
         // if ( oldWidth != width() || columns.size() + 1 != columnPos.size() )
         m_tableLayout->layout();
 
         LayoutUnit totalSectionLogicalHeight = 0;
         LayoutUnit oldTableLogicalTop = 0;
@@ skipping 900 matching lines @@
 const BorderValue& LayoutTable::tableEndBorderAdjoiningCell(const LayoutTableCell* cell) const
 {
     ASSERT(cell->isFirstOrLastCellInRow());
     if (hasSameDirectionAs(cell->row()))
         return style()->borderEnd();
 
     return style()->borderStart();
 }
 
 }