Have TreeScrope::adoptIfNeeded() take a reference instead of a pointer

Source/core/dom/ContainerNodeAlgorithms.h

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *           (C) 2008 Nikolas Zimmermann <zimmermann@kde.org>
  *
  * 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
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 118 matching lines @@
             // no-op, by default
         }
     };
 
     template<class GenericNode, class GenericNodeContainer>
     struct NodeRemovalDispatcher<GenericNode, GenericNodeContainer, true> {
         static void dispatch(GenericNode& node, GenericNodeContainer& container)
         {
             // Clean up any TreeScope to a removed tree.
             if (Document* containerDocument = container.ownerDocument())
-                containerDocument->adoptIfNeeded(&node);
+                containerDocument->adoptIfNeeded(node);
             if (node.inDocument())
                 ChildNodeRemovalNotifier(container).notify(node);
         }
     };
 
     template<class GenericNode>
     struct ShouldDispatchRemovalNotification {
         static const bool value = false;
     };
 
@@ skipping 189 matching lines @@
         for (Node* child = m_root->firstChild(); child; child = child->nextSibling())
             collectFrameOwners(child);
     }
 
     disconnectCollectedFrameOwners();
 }
 
 } // namespace WebCore
 
 #endif // ContainerNodeAlgorithms_h