Have Document::nodeWillBeRemoved() take a reference

Source/core/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 30 matching lines @@
 
     Node* container() const;
     int offset() const;
     Node* childBefore() const;
 
     void clear();
 
     void set(PassRefPtr<Node> container, int offset, Node* childBefore);
     void setOffset(int offset);
 
-    void setToBeforeChild(Node*);
+    void setToBeforeChild(Node&);
     void setToStartOfNode(PassRefPtr<Node>);
     void setToEndOfNode(PassRefPtr<Node>);
 
     void childBeforeWillBeRemoved();
     void invalidateOffset() const;
     void ensureOffsetIsValid() const;
 
 private:
     static const int invalidOffset = -1;
 
@@ skipping 67 matching lines @@
 
 inline void RangeBoundaryPoint::setOffset(int offset)
 {
     ASSERT(m_containerNode);
     ASSERT(m_containerNode->offsetInCharacters());
     ASSERT(m_offsetInContainer >= 0);
     ASSERT(!m_childBeforeBoundary);
     m_offsetInContainer = offset;
 }
 
-inline void RangeBoundaryPoint::setToBeforeChild(Node* child)
+inline void RangeBoundaryPoint::setToBeforeChild(Node& child)
 {
-    ASSERT(child);
-    ASSERT(child->parentNode());
-    m_childBeforeBoundary = child->previousSibling();
-    m_containerNode = child->parentNode();
+    ASSERT(child.parentNode());
+    m_childBeforeBoundary = child.previousSibling();
+    m_containerNode = child.parentNode();
     m_offsetInContainer = m_childBeforeBoundary ? invalidOffset : 0;
 }
 
 inline void RangeBoundaryPoint::setToStartOfNode(PassRefPtr<Node> container)
 {
     ASSERT(container);
     m_containerNode = container;
     m_offsetInContainer = 0;
     m_childBeforeBoundary = 0;
 }
@@ skipping 36 matching lines @@
     } else {
         if (a.offset() != b.offset())
             return false;
     }
     return true;
 }
 
 }
 
 #endif