Get rid of extraneous accessibility tree traversal code.

Source/WebKit/chromium/src/WebAccessibilityObject.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 174 matching lines @@
 {
     if (isDetached())
         return WebAccessibilityObject();
 
     if (m_private->children().size() <= index)
         return WebAccessibilityObject();
 
     return WebAccessibilityObject(m_private->children()[index]);
 }
 
-WebAccessibilityObject WebAccessibilityObject::firstChild() const
-{
-    if (isDetached())
-        return WebAccessibilityObject();
-
-    return WebAccessibilityObject(m_private->firstChild());
-}
-
-WebAccessibilityObject WebAccessibilityObject::focusedChild() const
-{
-    if (isDetached())
-        return WebAccessibilityObject();
-
-    RefPtr<AccessibilityObject> focused = m_private->focusedUIElement();
-    if (m_private.get() == focused.get() || m_private.get() == focused->parentObject())
-        return WebAccessibilityObject(focused);
-
-    return WebAccessibilityObject();
-}
-
-WebAccessibilityObject WebAccessibilityObject::lastChild() const
-{
-    if (isDetached())
-        return WebAccessibilityObject();
-
-    return WebAccessibilityObject(m_private->lastChild());
-}
-
-
-WebAccessibilityObject WebAccessibilityObject::nextSibling() const
-{
-    if (isDetached())
-        return WebAccessibilityObject();
-
-    return WebAccessibilityObject(m_private->nextSibling());
-}
-
 WebAccessibilityObject WebAccessibilityObject::parentObject() const
 {
     if (isDetached())
         return WebAccessibilityObject();
 
     return WebAccessibilityObject(m_private->parentObject());
 }
 
-
-WebAccessibilityObject WebAccessibilityObject::previousSibling() const
-{
-    if (isDetached())
-        return WebAccessibilityObject();
-
-    return WebAccessibilityObject(m_private->previousSibling());
-}
-
 bool WebAccessibilityObject::canSetSelectedAttribute() const
 {
     if (isDetached())
         return 0;
 
     return m_private->canSetSelectedAttribute();
 }
 
 bool WebAccessibilityObject::isAnchor() const
 {
@@ skipping 799 matching lines @@
     m_private = object;
     return *this;
 }
 
 WebAccessibilityObject::operator WTF::PassRefPtr<WebCore::AccessibilityObject>() const
 {
     return m_private.get();
 }
 
 } // namespace WebKit