Merge 139806

Source/WebCore/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 2081 matching lines @@
 
 ScriptExecutionContext* Node::scriptExecutionContext() const
 {
     return document();
 }
 
 void Node::didMoveToNewDocument(Document* oldDocument)
 {
     TreeScopeAdopter::ensureDidMoveToNewDocumentWasCalled(oldDocument);
 
+    if (AXObjectCache::accessibilityEnabled() && oldDocument && oldDocument->axObjectCacheExists())
+        oldDocument->axObjectCache()->remove(this);
+
     // FIXME: Event listener types for this node should be set on the new owner document here.
 
     const EventListenerVector& wheelListeners = getEventListeners(eventNames().mousewheelEvent);
     for (size_t i = 0; i < wheelListeners.size(); ++i) {
         oldDocument->didRemoveWheelEventHandler();
         document()->didAddWheelEventHandler();
     }
 
     Vector<AtomicString> touchEventNames = eventNames().touchEventNames();
     for (size_t i = 0; i < touchEventNames.size(); ++i) {
@@ skipping 566 matching lines @@
         node->showTreeForThis();
 }
 
 void showNodePath(const WebCore::Node* node)
 {
     if (node)
         node->showNodePathForThis();
 }
 
 #endif