Add NeedsPreferredWidthsRecalculation() for block

third_party/WebKit/Source/core/layout/LayoutBlock.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, 2011 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
@@ skipping 2189 matching lines @@
     available_height = View()->ViewLogicalHeightForPercentages();
   }
 
   return available_height;
 }
 
 bool LayoutBlock::HasDefiniteLogicalHeight() const {
   return AvailableLogicalHeightForPercentageComputation() != LayoutUnit(-1);
 }
 
+bool LayoutBlock::NeedsPreferredWidthsRecalculation() const {
+  return (HasRelativeLogicalHeight() && Style()->LogicalWidth().IsAuto()) ||
+         LayoutBox::NeedsPreferredWidthsRecalculation();
+}
+
 }  // namespace blink