[Oilpan] Prepare full definition of classes before using Member

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

 /*
  * Copyright (C) 2010 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 57 matching lines @@
     int64_t id() const { return m_id; }
     bool isActive() const { return m_state == Active; }
     bool isFinished() const { return m_state == Finished; }
     bool isFinishing() const { return m_state == Finishing; }
     bool isReadOnly() const { return m_mode == WebIDBTransactionModeReadOnly; }
     bool isVersionChange() const { return m_mode == WebIDBTransactionModeVersionChange; }
 
     // Implement the IDBTransaction IDL
     const String& mode() const;
     PassRefPtrWillBeRawPtr<DOMStringList> objectStoreNames() const;
-    IDBDatabase* db() const { return m_database.get(); }
-    DOMException* error() const { return m_error; }
+    IDBDatabase* db() const;
+    DOMException* error() const;
     IDBObjectStore* objectStore(const String& name, ExceptionState&);
     void abort(ExceptionState&);
 
     void registerRequest(IDBRequest*);
     void unregisterRequest(IDBRequest*);
     void objectStoreCreated(const String&, IDBObjectStore*);
     void objectStoreDeleted(const String&);
     void setActive(bool);
     void setError(DOMException*);
 
@@ skipping 44 matching lines @@
     IDBObjectStoreMap m_objectStoreMap;
 
     HeapHashSet<Member<IDBObjectStore>> m_deletedObjectStores;
     HeapHashMap<Member<IDBObjectStore>, IDBObjectStoreMetadata> m_objectStoreCleanupMap;
     IDBDatabaseMetadata m_previousMetadata;
 };
 
 } // namespace blink
 
 #endif // IDBTransaction_h