Deregister image client in LayoutObject::willBeDestroyed()

Source/core/layout/LayoutObject.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 1134 matching lines @@
     // Overrides should call the superclass at the start. |oldStyle| will be 0 the first
     // time this function is called.
     virtual void styleDidChange(StyleDifference, const ComputedStyle* oldStyle);
     void propagateStyleToAnonymousChildren(bool blockChildrenOnly = false);
     virtual void updateAnonymousChildStyle(const LayoutObject& child, ComputedStyle& style) const { }
 
 protected:
     void setSelfMayNeedPaintInvalidation();
 
     virtual void willBeDestroyed();
-    void postDestroy();
 
     virtual void insertedIntoTree();
     virtual void willBeRemovedFromTree();
 
     void setDocumentForAnonymous(Document* document) { ASSERT(isAnonymous()); m_node = document; }
 
     // Add hit-test rects for the layout tree rooted at this node to the provided collection on a
     // per-Layer basis.
     // currentLayer must be the enclosing layer, and layerOffset is the current offset within
     // this layer. Subclass implementations will add any offset for this layoutObject within it's
@@ skipping 494 matching lines @@
 void showTree(const blink::LayoutObject*);
 void showLineTree(const blink::LayoutObject*);
 void showLayoutTree(const blink::LayoutObject* object1);
 // We don't make object2 an optional parameter so that showLayoutTree
 // can be called from gdb easily.
 void showLayoutTree(const blink::LayoutObject* object1, const blink::LayoutObject* object2);
 
 #endif
 
 #endif // LayoutObject_h