output should not match to :enabled or :disabled pseudo classes.

third_party/WebKit/Source/core/html/HTMLAnchorElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2003, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 49 matching lines @@
 }
 
 bool HTMLAnchorElement::supportsFocus() const
 {
     if (hasEditableStyle())
         return HTMLElement::supportsFocus();
     // If not a link we should still be able to focus the element if it has tabIndex.
     return isLink() || HTMLElement::supportsFocus();
 }
 
+bool HTMLAnchorElement::matchesEnabledPseudoClass() const
+{
+    return isLink();
+}
+
 bool HTMLAnchorElement::shouldHaveFocusAppearance() const
 {
     return !m_wasFocusedByMouse || HTMLElement::supportsFocus();
 }
 
 void HTMLAnchorElement::dispatchFocusEvent(Element* oldFocusedElement, WebFocusType type, InputDeviceCapabilities* sourceCapabilities)
 {
     if (type != WebFocusTypePage)
         m_wasFocusedByMouse = type == WebFocusTypeMouse;
     HTMLElement::dispatchFocusEvent(oldFocusedElement, type, sourceCapabilities);
@@ skipping 302 matching lines @@
 }
 
 Node::InsertionNotificationRequest HTMLAnchorElement::insertedInto(ContainerNode* insertionPoint)
 {
     InsertionNotificationRequest request = HTMLElement::insertedInto(insertionPoint);
     logAddElementIfIsolatedWorldAndInDocument("a", hrefAttr);
     return request;
 }
 
 } // namespace blink