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

Source/core/dom/DOMNodeIds.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "core/dom/DOMNodeIds.h"
-#include "core/dom/Node.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
+template class WeakIdentifierMap<Node>;
+
 #if !ENABLE(OILPAN)
 void WeakIdentifierMapTraits<Node>::removedFromIdentifierMap(Node* node)
 {
     node->clearFlag(Node::HasWeakReferencesFlag);
 }
 
 void WeakIdentifierMapTraits<Node>::addedToIdentifierMap(Node* node)
 {
     node->setFlag(Node::HasWeakReferencesFlag);
 }
 #endif
 
 static WeakNodeMap& nodeIds()
 {
-    DEFINE_STATIC_LOCAL(RawPtrWillBePersistent<WeakNodeMap>, self, (new WeakNodeMap()));
+    DEFINE_STATIC_LOCAL(WeakNodeMap::ReferenceType, self, (new WeakNodeMap()));
     return *self;
 }
 
 int DOMNodeIds::idForNode(Node* node)
 {
     return nodeIds().identifier(node);
 }
 
 Node* DOMNodeIds::nodeForId(int id)
 {
     return nodeIds().lookup(id);
 }
 
 }