Introduce InspectorIdentifiers<> and use it to assign/lookup LocalFrame and DocumentLoader

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004-2011, 2014 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 69 matching lines @@
 class LayoutBoxModelObject;
 class LayoutObject;
 class ComputedStyle;
 class SVGQualifiedName;
 class ShadowRoot;
 template <typename NodeType> class StaticNodeTypeList;
 using StaticNodeList = StaticNodeTypeList<Node>;
 class TagCollection;
 class Text;
 class TouchEvent;
+#if !ENABLE(OILPAN)
 template <typename T> struct WeakIdentifierMapTraits;
+#endif
 
 const int nodeStyleChangeShift = 19;
 
 enum StyleChangeType {
     NoStyleChange = 0,
     LocalStyleChange = 1 << nodeStyleChangeShift,
     SubtreeStyleChange = 2 << nodeStyleChangeShift,
     NeedsReattachStyleChange = 3 << nodeStyleChangeShift,
 };
 
@@ skipping 689 matching lines @@
     // - in the destruction of Document or ShadowRoot where m_treeScope is set to null or
     // - in the Node constructor called by these two classes where m_treeScope is set by TreeScope ctor.
     bool isTreeScopeInitialized() const { return m_treeScope; }
 
     void markAncestorsWithChildNeedsStyleRecalc();
 
     void setIsFinishedParsingChildren(bool value) { setFlag(value, IsFinishedParsingChildrenFlag); }
 
 private:
     friend class TreeShared<Node>;
+#if !ENABLE(OILPAN)
     // FIXME: consider exposing proper API for this instead.
     friend struct WeakIdentifierMapTraits<Node>;
 
-#if !ENABLE(OILPAN)
     void removedLastRef();
 #endif
     bool hasTreeSharedParent() const { return !!parentOrShadowHostNode(); }
 
     enum EditableLevel { Editable, RichlyEditable };
     bool hasEditableStyle(EditableLevel, UserSelectAllTreatment = UserSelectAllIsAlwaysNonEditable) const;
     bool isEditableToAccessibility(EditableLevel) const;
 
     bool isUserActionElementActive() const;
     bool isUserActionElementInActiveChain() const;
@@ skipping 101 matching lines @@
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const blink::Node*);
 void showTree(const blink::Node*);
 void showNodePath(const blink::Node*);
 #endif
 
 #endif // Node_h