Fix virtual/override/final usage in Source/modules/.

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 70 matching lines @@
     void setBackend(SQLTransactionBackend*);
 
 private:
     SQLTransaction(Database*, SQLTransactionCallback*,
         VoidCallback* successCallback, SQLTransactionErrorCallback*,
         bool readOnly);
 
     void clearCallbacks();
 
     // State Machine functions:
-    virtual StateFunction stateFunctionFor(SQLTransactionState) override;
+    StateFunction stateFunctionFor(SQLTransactionState) override;
     bool computeNextStateAndCleanupIfNeeded();
 
     // State functions:
     SQLTransactionState deliverTransactionCallback();
     SQLTransactionState deliverTransactionErrorCallback();
     SQLTransactionState deliverStatementCallback();
     SQLTransactionState deliverQuotaIncreaseCallback();
     SQLTransactionState deliverSuccessCallback();
 
     SQLTransactionState unreachableState();
@@ skipping 10 matching lines @@
     bool m_executeSqlAllowed;
     OwnPtr<SQLErrorData> m_transactionError;
 
     bool m_readOnly;
     int m_asyncOperationId;
 };
 
 } // namespace blink
 
 #endif // SQLTransaction_h