List marker pseudo elements.

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 284 matching lines @@
 {
     m_selectorListForParseSelector = &selectorList;
 
     setupParser("@-internal-selector ", string, "");
 
     cssyyparse(this);
 
     m_selectorListForParseSelector = 0;
 }
 
+bool BisonCSSParser::isSelectorAllowedInParsingMode(CSSSelector::PseudoType type)
+{
+    if (isUASheetBehavior(m_context.mode()))
+        return true;
+
+    switch (type) {
+    case CSSSelector::PseudoMarker:
+        return false;
+    default:
+        return true;
+    }

[Julien - ping for review, 2014/12/05 19:44:03]

return type != CSSSelection::PseudoMarker?

[dsinclair, 2015/01/23 20:46:36]

Done. I'd originally written this thinking we'd have more of these, but this
works for now and we can switch to something else later if needed.

+}
+
 PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> BisonCSSParser::parseInlineStyleDeclaration(const String& string, Element* element)
 {
     Document& document = element->document();
     CSSParserContext context = CSSParserContext(document.elementSheet().contents()->parserContext(), UseCounter::getFrom(&document));
     context.setMode((element->isHTMLElement() && !document.inQuirksMode()) ? HTMLStandardMode : HTMLQuirksMode);
     return BisonCSSParser(context).parseDeclaration(string, document.elementSheet().contents());
 }
 
 PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> BisonCSSParser::parseDeclaration(const String& string, StyleSheetContents* contextStyleSheet)
 {
@@ skipping 827 matching lines @@
     rule->setProperties(createStylePropertySet());
     clearProperties();
 
     StyleRuleViewport* result = rule.get();
     m_parsedRules.append(rule.release());
 
     return result;
 }
 
 }