Merge 67418 - 2010-09-13 Chris Guillory <chris.guillory@google.com>...

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 83 matching lines @@
 
 bool WebAccessibilityObject::canSetValueAttribute() const
 {
     if (!m_private)
         return false;
 
     m_private->updateBackingStore();
     return m_private->canSetValueAttribute();
 }
 
+bool WebAccessibilityObject::isValid() const
+{
+    if (!m_private)
+        return false;
+
+    m_private->updateBackingStore();
+    return m_private->axObjectID();
+}
+
 unsigned WebAccessibilityObject::childCount() const
 {
     if (!m_private)
         return 0;
 
     m_private->updateBackingStore();
     return m_private->children().size();
 }
 
 WebAccessibilityObject WebAccessibilityObject::childAt(unsigned index) const
@@ skipping 370 matching lines @@
 
 void WebAccessibilityObject::assign(WebAccessibilityObjectPrivate* p)
 {
     // p is already ref'd for us by the caller
     if (m_private)
         m_private->deref();
     m_private = p;
 }
 
 } // namespace WebKit