Don't use rowIndex() if needsCellRecalc().

Source/core/rendering/RenderTableSection.h

 /*
  * 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, 2009, 2013 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
@@ skipping 188 matching lines @@
     {
         if (m_needsCellRecalc)
             recalcCells();
     }
 
     bool needsCellRecalc() const { return m_needsCellRecalc; }
     void setNeedsCellRecalc();
 
     LayoutUnit rowBaseline(unsigned row) { return m_grid[row].baseline; }
 
-    void rowLogicalHeightChanged(unsigned rowIndex);
+    void rowLogicalHeightChanged(RenderTableRow*);
 
     void removeCachedCollapsedBorders(const RenderTableCell*);
     void setCachedCollapsedBorder(const RenderTableCell*, CollapsedBorderSide, CollapsedBorderValue);
     CollapsedBorderValue& cachedCollapsedBorder(const RenderTableCell*, CollapsedBorderSide);
 
     // distributeExtraLogicalHeightToRows methods return the *consumed* extra logical height.
     // FIXME: We may want to introduce a structure holding the in-flux layout information.
     int distributeExtraLogicalHeightToRows(int extraLogicalHeight);
 
     static RenderTableSection* createAnonymousWithParentRenderer(const RenderObject*);
@@ skipping 106 matching lines @@
     static const bool needsDestruction = false;
 };
 template<> struct VectorTraits<blink::RenderTableSection::RowStruct> : VectorTraitsBase<blink::RenderTableSection::RowStruct> {
     static const bool needsDestruction = false;
 };
 #endif
 
 }
 
 #endif // RenderTableSection_h