Oilpan: cleanup based on review comments after removal of TreeShared.

Source/core/dom/TreeScope.h

 /*
  * Copyright (C) 2011 Google Inc. All Rights Reserved.
  * Copyright (C) 2012 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
@@ skipping 126 matching lines @@
 
     Element* getElementByAccessKey(const String& key) const;
 
     virtual void trace(Visitor*);
 
 protected:
     TreeScope(ContainerNode&, Document&);
     TreeScope(Document&);
     virtual ~TreeScope();
 
+#if !ENABLE(OILPAN)
     void destroyTreeScopeData();
+#endif
+
     void setDocument(Document& document) { m_document = &document; }
     void setParentTreeScope(TreeScope&);
 
 #if !ENABLE(OILPAN)
     bool hasGuardRefCount() const { return m_guardRefCount; }
 #endif
 
     void setNeedsStyleRecalcForViewportUnits();
 
 private:
     virtual void dispose() { }
 
 #if !ENABLE(OILPAN)
     int refCount() const;
-#endif
 
-#if SECURITY_ASSERT_ENABLED && !ENABLE(OILPAN)
+#if SECURITY_ASSERT_ENABLED
     bool deletionHasBegun();
     void beginDeletion();
 #else
     bool deletionHasBegun() { return false; }
     void beginDeletion() { }
 #endif
+#endif
 
     bool rootNodeHasTreeSharedParent() const;
 
     RawPtrWillBeMember<Node> m_rootNode;
     RawPtrWillBeMember<Document> m_document;
     RawPtrWillBeMember<TreeScope> m_parentTreeScope;
 
 #if !ENABLE(OILPAN)
     int m_guardRefCount;
 #endif
@@ skipping 24 matching lines @@
 inline bool operator!=(const TreeScope& a, const TreeScope& b) { return !(a == b); }
 inline bool operator!=(const TreeScope& a, const TreeScope* b) { return !(a == b); }
 inline bool operator!=(const TreeScope* a, const TreeScope& b) { return !(a == b); }
 
 HitTestResult hitTestInDocument(const Document*, int x, int y);
 TreeScope* commonTreeScope(Node*, Node*);
 
 } // namespace WebCore
 
 #endif // TreeScope_h