Simplify Supplementables post Oilpan.

third_party/WebKit/Source/modules/indexeddb/WorkerGlobalScopeIndexedDatabase.h

 /*
  * Copyright (C) 2008, 2009 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 18 matching lines @@
 
 #include "core/workers/WorkerGlobalScope.h"
 #include "platform/Supplementable.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class IDBFactory;
 class WorkerGlobalScope;
 
-class WorkerGlobalScopeIndexedDatabase final : public GarbageCollectedFinalized<WorkerGlobalScopeIndexedDatabase>, public HeapSupplement<WorkerGlobalScope> {
+class WorkerGlobalScopeIndexedDatabase final : public GarbageCollectedFinalized<WorkerGlobalScopeIndexedDatabase>, public Supplement<WorkerGlobalScope> {
     USING_GARBAGE_COLLECTED_MIXIN(WorkerGlobalScopeIndexedDatabase);
 public:
     virtual ~WorkerGlobalScopeIndexedDatabase();
-    static WorkerGlobalScopeIndexedDatabase& from(HeapSupplementable<WorkerGlobalScope>&);
+    static WorkerGlobalScopeIndexedDatabase& from(Supplementable<WorkerGlobalScope>&);
 
-    static IDBFactory* indexedDB(HeapSupplementable<WorkerGlobalScope>&);
+    static IDBFactory* indexedDB(Supplementable<WorkerGlobalScope>&);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     WorkerGlobalScopeIndexedDatabase();
 
     IDBFactory* indexedDB();
     static const char* supplementName();
 
     Member<IDBFactory> m_idbFactory;
 };
 
 } // namespace blink
 
 #endif // WorkerGlobalScopeIndexedDatabase_h