-webkit-box-ordinal-group cannot exceed the keyspace for a HashSet

third_party/WebKit/Source/core/style/ComputedStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 963 matching lines @@
                    lines);
   }
 
   // -webkit-box-ordinal-group
   static unsigned initialBoxOrdinalGroup() { return 1; }
   unsigned boxOrdinalGroup() const {
     return m_rareNonInheritedData->m_deprecatedFlexibleBox->ordinalGroup;
   }
   void setBoxOrdinalGroup(unsigned og) {
     SET_NESTED_VAR(m_rareNonInheritedData, m_deprecatedFlexibleBox,
-                   ordinalGroup, og);
+                   ordinalGroup,
+                   std::min(std::numeric_limits<unsigned>::max() - 1, og));
   }
 
   // -webkit-box-orient
   static EBoxOrient initialBoxOrient() { return HORIZONTAL; }
   EBoxOrient boxOrient() const {
     return static_cast<EBoxOrient>(
         m_rareNonInheritedData->m_deprecatedFlexibleBox->orient);
   }
   void setBoxOrient(EBoxOrient o) {
     SET_NESTED_VAR(m_rareNonInheritedData, m_deprecatedFlexibleBox, orient, o);
@@ skipping 2819 matching lines @@
   m_nonInheritedData.m_pseudoBits |= 1 << (pseudo - 1);
 }
 
 inline bool ComputedStyle::hasPseudoElementStyle() const {
   return m_nonInheritedData.m_pseudoBits & ElementPseudoIdMask;
 }
 
 }  // namespace blink
 
 #endif  // ComputedStyle_h