Merge 100827

Source/WebCore/dom/RangeBoundaryPoint.h

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 41 matching lines @@
 
     void childBeforeWillBeRemoved();
     void invalidateOffset() const;
     void ensureOffsetIsValid() const;
 
 private:
     static const int invalidOffset = -1;
     
     RefPtr<Node> m_containerNode;
     mutable int m_offsetInContainer;
-    Node* m_childBeforeBoundary;
+    RefPtr<Node> m_childBeforeBoundary;
 };
 
 inline RangeBoundaryPoint::RangeBoundaryPoint(PassRefPtr<Node> container)
     : m_containerNode(container)
     , m_offsetInContainer(0)
     , m_childBeforeBoundary(0)
 {
     ASSERT(m_containerNode);
 }
 
 inline Node* RangeBoundaryPoint::container() const
 {
     return m_containerNode.get();
 }
 
 inline Node* RangeBoundaryPoint::childBefore() const
 {
-    return m_childBeforeBoundary;
+    return m_childBeforeBoundary.get();
 }
 
 inline void RangeBoundaryPoint::ensureOffsetIsValid() const
 {
     if (m_offsetInContainer >= 0)
         return;
 
     ASSERT(m_childBeforeBoundary);
     m_offsetInContainer = m_childBeforeBoundary->nodeIndex() + 1;
 }
@@ skipping 91 matching lines @@
     } else {
         if (a.offset() != b.offset())
             return false;
     }
     return true;
 }
 
 }
 
 #endif