Replace the Persistent in SQLiteDatabase with a member and trace it.

Source/modules/webdatabase/sqlite/SQLiteDatabase.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
  *
  * 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 35 matching lines @@
 class SQLiteTransaction;
 
 extern const int SQLResultDone;
 extern const int SQLResultOk;
 extern const int SQLResultRow;
 extern const int SQLResultFull;
 extern const int SQLResultInterrupt;
 extern const int SQLResultConstraint;
 
 class SQLiteDatabase {
+    DISALLOW_ALLOCATION();
     WTF_MAKE_NONCOPYABLE(SQLiteDatabase);
     friend class SQLiteTransaction;
 public:
     SQLiteDatabase();
     ~SQLiteDatabase();
 
     bool open(const String& filename, bool forWebSQLDatabase = false);
     bool isOpen() const { return m_db; }
     void close();
     void interrupt();
@@ skipping 42 matching lines @@
     // FULL - SQLite moves all empty pages to the end of the DB file and truncates
     //        the file to remove those pages after every transaction. This option
     //        requires SQLite to store additional information about each page in
     //        the database file.
     // INCREMENTAL - SQLite stores extra information for each page in the database
     //               file, but removes the empty pages only when PRAGMA INCREMANTAL_VACUUM
     //               is called.
     enum AutoVacuumPragma { AutoVacuumNone = 0, AutoVacuumFull = 1, AutoVacuumIncremental = 2 };
     bool turnOnIncrementalAutoVacuum();
 
+    void trace(Visitor*);
+
 private:
     static int authorizerFunction(void*, int, const char*, const char*, const char*, const char*);
 
     void enableAuthorizer(bool enable);
 
     int pageSize();
 
     sqlite3* m_db;
     int m_pageSize;
 
     bool m_transactionInProgress;
     bool m_sharable;
 
     Mutex m_authorizerLock;
-    RefPtrWillBePersistent<DatabaseAuthorizer> m_authorizer;
+    RefPtrWillBeMember<DatabaseAuthorizer> m_authorizer;
 
     Mutex m_lockingMutex;
     ThreadIdentifier m_openingThread;
 
     Mutex m_databaseClosingMutex;
     bool m_interrupted;
 
     int m_openError;
     CString m_openErrorMessage;
 
     int m_lastChangesCount;
 };
 
 } // namespace WebCore
 
 #endif