Add correct equality testing for ComputedStyle's StyleVariableData

third_party/WebKit/Source/core/style/StyleRareInheritedData.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 205 matching lines @@
         && m_respectImageOrientation == o.m_respectImageOrientation
         && hyphenationString == o.hyphenationString
         && textEmphasisCustomMark == o.textEmphasisCustomMark
         && quotesDataEquivalent(o)
         && m_tabSize == o.m_tabSize
         && m_imageRendering == o.m_imageRendering
         && m_textUnderlinePosition == o.m_textUnderlinePosition
         && m_rubyPosition == o.m_rubyPosition
         && dataEquivalent(listStyleImage.get(), o.listStyleImage.get())
         && dataEquivalent(appliedTextDecorations, o.appliedTextDecorations)
-        && variables == o.variables;
+        && dataEquivalent(variables, o.variables);
 }
 
 bool StyleRareInheritedData::shadowDataEquivalent(const StyleRareInheritedData& o) const
 {
     return dataEquivalent(textShadow.get(), o.textShadow.get());
 }
 
 bool StyleRareInheritedData::quotesDataEquivalent(const StyleRareInheritedData& o) const
 {
     return dataEquivalent(quotes, o.quotes);
 }
 
 } // namespace blink