Have Document::nodeWillBeRemoved() take a reference

Source/core/editing/FrameSelection.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 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 133 matching lines @@
 
     bool isNone() const { return m_selection.isNone(); }
     bool isCaret() const { return m_selection.isCaret(); }
     bool isRange() const { return m_selection.isRange(); }
     bool isCaretOrRange() const { return m_selection.isCaretOrRange(); }
     bool isInPasswordField() const;
     bool isAll(EditingBoundaryCrossingRule rule = CannotCrossEditingBoundary) const { return m_selection.isAll(rule); }
 
     PassRefPtr<Range> toNormalizedRange() const { return m_selection.toNormalizedRange(); }
 
-    void nodeWillBeRemoved(Node*);
+    void nodeWillBeRemoved(Node&);
     void didUpdateCharacterData(CharacterData*, unsigned offset, unsigned oldLength, unsigned newLength);
     void didMergeTextNodes(const Text& oldNode, unsigned offset);
     void didSplitTextNode(const Text& oldNode);
 
     void setCaretVisible(bool caretIsVisible) { setCaretVisibility(caretIsVisible ? Visible : Hidden); }
     bool recomputeCaretRect();
     void invalidateCaretRect();
     void paintCaret(GraphicsContext*, const LayoutPoint&, const LayoutRect& clipRect);
 
     // Used to suspend caret blinking while the mouse is down.
@@ skipping 37 matching lines @@
 
     void revealSelection(const ScrollAlignment& = ScrollAlignment::alignCenterIfNeeded, RevealExtentOption = DoNotRevealExtent);
     void setSelectionFromNone();
 
     bool shouldShowBlockCursor() const { return m_shouldShowBlockCursor; }
     void setShouldShowBlockCursor(bool);
 
 private:
     enum EPositionType { START, END, BASE, EXTENT };
 
-    void respondToNodeModification(Node*, bool baseRemoved, bool extentRemoved, bool startRemoved, bool endRemoved);
+    void respondToNodeModification(Node&, bool baseRemoved, bool extentRemoved, bool startRemoved, bool endRemoved);
     TextDirection directionOfEnclosingBlock();
     TextDirection directionOfSelection();
 
     VisiblePosition positionForPlatform(bool isGetStart) const;
     VisiblePosition startForPlatform() const;
     VisiblePosition endForPlatform() const;
     VisiblePosition nextWordPositionForPlatform(const VisiblePosition&);
 
     VisiblePosition modifyExtendingRight(TextGranularity);
     VisiblePosition modifyExtendingForward(TextGranularity);
@@ skipping 59 matching lines @@
 }
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showTree(const WebCore::FrameSelection&);
 void showTree(const WebCore::FrameSelection*);
 #endif
 
 #endif // FrameSelection_h