Add accessibilityEnabled and inlineTextBoxAccessiblityEnabled to Settings, but don't use them yet.

Source/web/WebAXObject.cpp

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 73 matching lines @@
 {
     return m_private.get() == n.m_private.get();
 }
 
 // static
 void WebAXObject::enableAccessibility()
 {
     AXObjectCache::enableAccessibility();
 }
 
-// static
-bool WebAXObject::accessibilityEnabled()
-{
-    return AXObjectCache::accessibilityEnabled();
-}
 
 // static
 void WebAXObject::enableInlineTextBoxAccessibility()
 {
     AXObjectCache::setInlineTextBoxAccessibility(true);
 }
 
 bool WebAXObject::isDetached() const
 {
     if (m_private.isNull())
@@ skipping 1066 matching lines @@
     m_private = object;
     return *this;
 }
 
 WebAXObject::operator WTF::PassRefPtr<AXObject>() const
 {
     return m_private.get();
 }
 
 } // namespace blink