Oilpan: Prepare to move AbstractSQLTransaction and SQLTransaction to Oilpan heap.

Source/modules/webdatabase/SQLTransaction.h

 /*
  * Copyright (C) 2007, 2013 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
@@ skipping 33 matching lines @@
 class Database;
 class ExceptionState;
 class SQLError;
 class SQLStatementCallback;
 class SQLStatementErrorCallback;
 class SQLTransactionCallback;
 class SQLTransactionErrorCallback;
 class SQLValue;
 class VoidCallback;
 
-class SQLTransaction FINAL : public SQLTransactionStateMachine<SQLTransaction>, public AbstractSQLTransaction, public ScriptWrappable {
+class SQLTransaction FINAL : public AbstractSQLTransaction, public SQLTransactionStateMachine<SQLTransaction>, public ScriptWrappable {
 public:
-    static PassRefPtr<SQLTransaction> create(Database*, PassOwnPtr<SQLTransactionCallback>,
+    static PassRefPtrWillBeRawPtr<SQLTransaction> create(Database*, PassOwnPtr<SQLTransactionCallback>,
         PassOwnPtr<VoidCallback> successCallback, PassOwnPtr<SQLTransactionErrorCallback>,
         bool readOnly);
+    virtual void trace(Visitor*) OVERRIDE;
 
     void performPendingCallback();
 
     void executeSQL(const String& sqlStatement, const Vector<SQLValue>& arguments,
         PassOwnPtr<SQLStatementCallback>, PassOwnPtr<SQLStatementErrorCallback>, ExceptionState&);
 
     Database* database() { return m_database.get(); }
 
     PassOwnPtr<SQLTransactionErrorCallback> releaseErrorCallback();
 
@@ skipping 20 matching lines @@
     SQLTransactionState deliverTransactionErrorCallback();
     SQLTransactionState deliverStatementCallback();
     SQLTransactionState deliverQuotaIncreaseCallback();
     SQLTransactionState deliverSuccessCallback();
 
     SQLTransactionState unreachableState();
     SQLTransactionState sendToBackendState();
 
     SQLTransactionState nextStateForTransactionError();
 
-    RefPtrWillBeCrossThreadPersistent<Database> m_database;
+    RefPtrWillBeMember<Database> m_database;
     RefPtr<AbstractSQLTransactionBackend> m_backend;
     SQLCallbackWrapper<SQLTransactionCallback> m_callbackWrapper;
     SQLCallbackWrapper<VoidCallback> m_successCallbackWrapper;
     SQLCallbackWrapper<SQLTransactionErrorCallback> m_errorCallbackWrapper;
 
     bool m_executeSqlAllowed;
     RefPtr<SQLError> m_transactionError;
 
     bool m_readOnly;
 };
 
 } // namespace WebCore
 
 #endif // SQLTransaction_h