Merge 97786 - Crash in RenderDeprecatedFlexibleBox::layoutHorizontalBox

Source/WebCore/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 177 matching lines @@
                     while (InlineBox* childBox = box->firstChild())
                         childBox->remove();
                 }
             }
         } else if (parent())
             parent()->dirtyLinesFromChangedChild(this);
     }
 
     m_lineBoxes.deleteLineBoxes(renderArena());
 
+    if (UNLIKELY(gDelayedUpdateScrollInfoSet != 0))
+        gDelayedUpdateScrollInfoSet->remove(this);
+
     RenderBox::willBeDestroyed();
 }
 
 void RenderBlock::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
 {
     s_canPropagateFloatIntoSibling = style() ? !isFloatingOrPositioned() && !avoidsFloats() : false;
 
     setReplaced(newStyle->isDisplayInlineType());
     
     if (style() && parent() && diff == StyleDifferenceLayout && style()->position() != newStyle->position()) {
@@ skipping 6393 matching lines @@
 }
 
 String ValueToString<RenderBlock::FloatingObject*>::string(const RenderBlock::FloatingObject* floatingObject)
 {
     return String::format("%p (%dx%d %dx%d)", floatingObject, floatingObject->x(), floatingObject->y(), floatingObject->maxX(), floatingObject->maxY());
 }
 
 #endif
 
 } // namespace WebCore