Remove fallback matching ::cue* pseudo-element selectors

Source/core/css/parser/BisonCSSParser-in.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
@@ skipping 905 matching lines @@
     // difference between *:host and just :host.
     if (tag == anyQName() && !specifiers->hasHostPseudoSelector())
         return specifiers;
     if (specifiers->pseudoType() != CSSSelector::PseudoCue)
         specifiers->prependTagSelector(tag, tagIsForNamespaceRule);
     return specifiers;
 }
 
 CSSParserSelector* BisonCSSParser::rewriteSpecifiersWithElementNameForCustomPseudoElement(const QualifiedName& tag, const AtomicString& elementName, CSSParserSelector* specifiers, bool tagIsForNamespaceRule)
 {
-    if (m_context.useCounter() && specifiers->pseudoType() == CSSSelector::PseudoUserAgentCustomElement)
-        m_context.useCounter()->count(UseCounter::CSSPseudoElementUserAgentCustomPseudo);
-
     CSSParserSelector* lastShadowPseudo = specifiers;
     CSSParserSelector* history = specifiers;
     while (history->tagHistory()) {
         history = history->tagHistory();
         if (history->crossesTreeScopes() || history->hasShadowPseudo())
             lastShadowPseudo = history;
     }
 
     if (lastShadowPseudo->tagHistory()) {
         if (tag != anyQName())
@@ skipping 207 matching lines @@
     rule->setProperties(createStylePropertySet());
     clearProperties();
 
     StyleRuleViewport* result = rule.get();
     m_parsedRules.append(rule.release());
 
     return result;
 }
 
 }