[oilpan] Move IDBDatabase, IDBDatabaseCallbacks, IDBDatabaseBackendInterface and other related clas…

Source/modules/indexeddb/IDBCursorBackendImpl.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 56 matching lines @@
 
 private:
     IDBCursorBackendImpl(PassRefPtr<IDBBackingStore::Cursor>, IndexedDB::CursorType, IDBDatabaseBackendInterface::TaskType, IDBTransactionBackendImpl*, int64_t objectStoreId);
 
     class CursorIterationOperation;
     class CursorAdvanceOperation;
     class CursorPrefetchIterationOperation;
 
     IDBDatabaseBackendInterface::TaskType m_taskType;
     IndexedDB::CursorType m_cursorType;
-    const RefPtr<IDBDatabaseBackendImpl> m_database;
+    const Persistent<IDBDatabaseBackendImpl> m_database;
     const RefPtr<IDBTransactionBackendImpl> m_transaction;
     const int64_t m_objectStoreId;
 
     RefPtr<IDBBackingStore::Cursor> m_cursor; // Must be destroyed before m_transaction.
     RefPtr<IDBBackingStore::Cursor> m_savedCursor; // Must be destroyed before m_transaction.
 
     bool m_closed;
 };
 
 } // namespace WebCore
 
 #endif // IDBCursorBackendImpl_h