Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.h

 /*
  * Copyright (C) 2014, Google 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 167 matching lines @@
     void postPlatformNotification(AXObject*, AXNotification);
     void textChanged(AXObject*);
     void labelChanged(Element*);
 
     AXObject* createFromRenderer(LayoutObject*);
     AXObject* createFromNode(Node*);
     AXObject* createFromInlineTextBox(AbstractInlineTextBox*);
 
 private:
 
-    RawPtrWillBeMember<Document> m_document;
+    Member<Document> m_document;
     HeapHashMap<AXID, Member<AXObject>> m_objects;
     // LayoutObject and AbstractInlineTextBox are not on the Oilpan heap so we
     // do not use HeapHashMap for those mappings.
     HashMap<LayoutObject*, AXID> m_layoutObjectMapping;
-    WillBeHeapHashMap<RawPtrWillBeMember<Node>, AXID> m_nodeObjectMapping;
+    HeapHashMap<Member<Node>, AXID> m_nodeObjectMapping;
     HashMap<AbstractInlineTextBox*, AXID> m_inlineTextBoxObjectMapping;
     int m_modificationCount;
 
     HashSet<AXID> m_idsInUse;
 
 #if ENABLE(ASSERT)
     // Verified when finalizing.
     bool m_hasBeenDisposed;
 #endif
 
@@ skipping 41 matching lines @@
 // This is the only subclass of AXObjectCache.
 DEFINE_TYPE_CASTS(AXObjectCacheImpl, AXObjectCache, cache, true, true);
 
 bool nodeHasRole(Node*, const String& role);
 // This will let you know if aria-hidden was explicitly set to false.
 bool isNodeAriaVisible(Node*);
 
 } // namespace blink
 
 #endif