Change <menuitem> parsing rules to match spec

third_party/WebKit/Source/core/html/parser/HTMLStackItem.h

 /*
  * Copyright (C) 2012 Company 100, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 142 matching lines @@
            tag_name == HTMLNames::framesetTag || IsNumberedHeaderElement() ||
            tag_name == HTMLNames::headTag || tag_name == HTMLNames::headerTag ||
            tag_name == HTMLNames::hgroupTag || tag_name == HTMLNames::hrTag ||
            tag_name == HTMLNames::htmlTag || tag_name == HTMLNames::iframeTag ||
            tag_name == HTMLNames::imgTag || tag_name == HTMLNames::inputTag ||
            tag_name == HTMLNames::liTag || tag_name == HTMLNames::linkTag ||
            tag_name == HTMLNames::listingTag ||
            tag_name == HTMLNames::mainTag ||
            tag_name == HTMLNames::marqueeTag ||
            tag_name == HTMLNames::menuTag ||
-           (RuntimeEnabledFeatures::contextMenuEnabled() &&
-            tag_name == HTMLNames::menuitemTag) ||
            tag_name == HTMLNames::metaTag || tag_name == HTMLNames::navTag ||
            tag_name == HTMLNames::noembedTag ||
            tag_name == HTMLNames::noframesTag ||
            tag_name == HTMLNames::noscriptTag ||
            tag_name == HTMLNames::objectTag || tag_name == HTMLNames::olTag ||
            tag_name == HTMLNames::pTag || tag_name == HTMLNames::paramTag ||
            tag_name == HTMLNames::plaintextTag ||
            tag_name == HTMLNames::preTag || tag_name == HTMLNames::scriptTag ||
            tag_name == HTMLNames::sectionTag ||
            tag_name == HTMLNames::selectTag ||
@@ skipping 37 matching lines @@
 
   AtomicString token_local_name_;
   Vector<Attribute> token_attributes_;
   AtomicString namespace_uri_;
   bool is_document_fragment_node_;
 };
 
 }  // namespace blink
 
 #endif  // HTMLStackItem_h