Removed unused matching behavior.

Source/core/css/resolver/StyleResolver.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 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 61 matching lines @@
 class StyleRulePage;
 class ViewportStyleResolver;
 
 class MatchResult;
 
 enum StyleSharingBehavior {
     AllowStyleSharing,
     DisallowStyleSharing,
 };
 
-// MatchOnlyUserAgentRules is used in media queries, where relative units
-// are interpreted according to the document root element style, and styled only
-// from the User Agent Stylesheet rules.
 enum RuleMatchingBehavior {
     MatchAllRules,
-    MatchAllRulesExcludingSMIL,
-    MatchOnlyUserAgentRules,
+    MatchAllRulesExcludingSMIL
 };
 
 const unsigned styleSharingListSize = 40;
 typedef WTF::Deque<Element*, styleSharingListSize> StyleSharingList;
 
 struct CSSPropertyValue {
     STACK_ALLOCATED();
 public:
     CSSPropertyValue(CSSPropertyID property, CSSValue* value)
         : property(property), value(value) { }
@@ skipping 232 matching lines @@
     OwnPtr<StyleResolverStats> m_styleResolverStatsTotals;
     unsigned m_styleResolverStatsSequence;
 
     // Use only for Internals::updateStyleAndReturnAffectedElementCount.
     unsigned m_accessCount;
 };
 
 } // namespace WebCore
 
 #endif // StyleResolver_h