Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/webdatabase/DatabaseContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 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 23 matching lines @@
 
 namespace WebCore {
 
 class Database;
 class DatabaseContext;
 class DatabaseTaskSynchronizer;
 class DatabaseThread;
 class ExecutionContext;
 class SecurityOrigin;
 
-class DatabaseContext : public ThreadSafeRefCounted<DatabaseContext>, public ActiveDOMObject {
+class DatabaseContext FINAL : public ThreadSafeRefCounted<DatabaseContext>, public ActiveDOMObject {
 public:
     friend class DatabaseManager;
 
     static PassRefPtr<DatabaseContext> create(ExecutionContext*);
 
     virtual ~DatabaseContext();
 
     // For life-cycle management (inherited from ActiveDOMObject):
-    virtual void contextDestroyed();
-    virtual void stop();
+    virtual void contextDestroyed() OVERRIDE;
+    virtual void stop() OVERRIDE;
 
     PassRefPtr<DatabaseContext> backend();
     DatabaseThread* databaseThread();
 
     void setHasOpenDatabases() { m_hasOpenDatabases = true; }
     bool hasOpenDatabases() { return m_hasOpenDatabases; }
 
     // When the database cleanup is done, cleanupSync will be signalled.
     bool stopDatabases(DatabaseTaskSynchronizer*);
 
     bool allowDatabaseAccess() const;
 
     SecurityOrigin* securityOrigin() const;
     bool isContextThread() const;
 
 private:
     explicit DatabaseContext(ExecutionContext*);
 
     void stopDatabases() { stopDatabases(0); }
 
     RefPtr<DatabaseThread> m_databaseThread;
     bool m_hasOpenDatabases; // This never changes back to false, even after the database thread is closed.
     bool m_isRegistered;
     bool m_hasRequestedTermination;
 };
 
 } // namespace WebCore
 
 #endif // DatabaseContext_h