Remove support for pseudo classes in <content select>.

Source/core/css/SelectorChecker.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 80 matching lines @@
 
     struct MatchResult {
         MatchResult()
             : dynamicPseudo(NOPSEUDO)
             , specificity(0) { }
 
         PseudoId dynamicPseudo;
         unsigned specificity;
     };
 
-    template<typename SiblingTraversalStrategy>
-    Match match(const SelectorCheckingContext&, const SiblingTraversalStrategy&, MatchResult* = 0) const;
-
-    template<typename SiblingTraversalStrategy>
-    bool checkOne(const SelectorCheckingContext&, const SiblingTraversalStrategy&, unsigned* specificity = 0) const;
+    Match match(const SelectorCheckingContext&, MatchResult* = 0) const;
+    bool checkOne(const SelectorCheckingContext&, unsigned* specificity = 0) const;
 
     static bool matchesFocusPseudoClass(const Element&);
 
 private:
-    template<typename SiblingTraversalStrategy>
-    Match matchForSubSelector(const SelectorCheckingContext&, const SiblingTraversalStrategy&, MatchResult*) const;
-    template<typename SiblingTraversalStrategy>
-    Match matchForRelation(const SelectorCheckingContext&, const SiblingTraversalStrategy&, MatchResult*) const;
-    template<typename SiblingTraversalStrategy>
-    Match matchForShadowDistributed(const Element*, const SiblingTraversalStrategy&, SelectorCheckingContext& nextContext, MatchResult* = 0) const;
-    template<typename SiblingTraversalStrategy>
-    Match matchForPseudoShadow(const ContainerNode*, const SelectorCheckingContext&, const SiblingTraversalStrategy&, MatchResult*) const;
-    template<typename SiblingTraversalStrategy>
-    bool checkPseudoClass(const SelectorCheckingContext&, const SiblingTraversalStrategy&, unsigned* specificity) const;
-    template<typename SiblingTraversalStrategy>
-    bool checkPseudoElement(const SelectorCheckingContext&, const SiblingTraversalStrategy&) const;
-
+    Match matchForSubSelector(const SelectorCheckingContext&, MatchResult*) const;
+    Match matchForRelation(const SelectorCheckingContext&, MatchResult*) const;
+    Match matchForShadowDistributed(const Element*, SelectorCheckingContext& nextContext, MatchResult* = 0) const;
+    Match matchForPseudoShadow(const ContainerNode*, const SelectorCheckingContext&, MatchResult*) const;
+    bool checkPseudoClass(const SelectorCheckingContext&, unsigned* specificity) const;
+    bool checkPseudoElement(const SelectorCheckingContext&) const;
     bool checkScrollbarPseudoClass(const SelectorCheckingContext&, Document*, const CSSSelector&) const;
-    template<typename SiblingTraversalStrategy>
-    bool checkPseudoHost(const SelectorCheckingContext&, const SiblingTraversalStrategy&, unsigned*) const;
+    bool checkPseudoHost(const SelectorCheckingContext&, unsigned*) const;
 
     Mode m_mode;
 };
 
 }
 
 #endif