[css] Bandaid fix for crash when tables and containment mix.

third_party/WebKit/Source/core/layout/LayoutTableSection.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, 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 775 matching lines @@
 
     ASSERT(!needsLayout());
 
     return m_rowPos[m_grid.size()];
 }
 
 void LayoutTableSection::layout()
 {
     ASSERT(needsLayout());
     LayoutAnalyzer::Scope analyzer(*this);
-    ASSERT(!needsCellRecalc());
+    // TODO(dgrogan): Change this to RELEASE_ASSERT(!needsCellRecalc()) once
+    // containment and tables play nicely. https://crbug.com/616643
+    if (needsCellRecalc())
+        return;
     ASSERT(!table()->needsSectionRecalc());
 
     // addChild may over-grow m_grid but we don't want to throw away the memory too early as addChild
     // can be called in a loop (e.g during parsing). Doing it now ensures we have a stable-enough structure.
     m_grid.shrinkToFit();
 
     LayoutState state(*this, locationOffset());
 
     const Vector<int>& columnPos = table()->effectiveColumnPositions();
 
@@ skipping 852 matching lines @@
     // FIXME: The table's direction should determine our row's direction, not the section's (see bug 96691).
     if (!style()->isLeftToRightDirection())
         cellLocation.setX(LayoutUnit(table()->effectiveColumnPositions()[table()->numEffectiveColumns()] - table()->effectiveColumnPositions()[table()->absoluteColumnToEffectiveColumn(cell->absoluteColumnIndex() + cell->colSpan())] + horizontalBorderSpacing));
     else
         cellLocation.setX(LayoutUnit(table()->effectiveColumnPositions()[effectiveColumn] + horizontalBorderSpacing));
 
     cell->setLogicalLocation(cellLocation);
 }
 
 } // namespace blink