Update modules classes to use OVERRIDE / FINAL when needed

Source/modules/mediastream/UserMediaRequest.h

 /*
  * Copyright (C) 2011 Ericsson AB. 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 31 matching lines @@
 namespace WebCore {
 
 class Dictionary;
 class Document;
 class ExceptionState;
 class MediaConstraints;
 class MediaConstraintsImpl;
 class MediaStreamDescriptor;
 class UserMediaController;
 
-class UserMediaRequest : public RefCounted<UserMediaRequest>, public ContextLifecycleObserver {
+class UserMediaRequest FINAL : public RefCounted<UserMediaRequest>, public ContextLifecycleObserver {
 public:
     static PassRefPtr<UserMediaRequest> create(ExecutionContext*, UserMediaController*, const Dictionary& options, PassOwnPtr<NavigatorUserMediaSuccessCallback>, PassOwnPtr<NavigatorUserMediaErrorCallback>, ExceptionState&);
-    ~UserMediaRequest();
+    virtual ~UserMediaRequest();
 
     NavigatorUserMediaSuccessCallback* successCallback() const { return m_successCallback.get(); }
     NavigatorUserMediaErrorCallback* errorCallback() const { return m_errorCallback.get(); }
     Document* ownerDocument();
 
     void start();
 
     void succeed(PassRefPtr<MediaStreamDescriptor>);
     void fail(const String& description);
     void failConstraint(const String& constraintName, const String& description);
 
     bool audio() const;
     bool video() const;
     MediaConstraints* audioConstraints() const;
     MediaConstraints* videoConstraints() const;
 
     // ContextLifecycleObserver
-    virtual void contextDestroyed();
+    virtual void contextDestroyed() OVERRIDE;
 
 private:
     UserMediaRequest(ExecutionContext*, UserMediaController*, PassRefPtr<MediaConstraintsImpl> audio, PassRefPtr<MediaConstraintsImpl> video, PassOwnPtr<NavigatorUserMediaSuccessCallback>, PassOwnPtr<NavigatorUserMediaErrorCallback>);
 
     RefPtr<MediaConstraintsImpl> m_audio;
     RefPtr<MediaConstraintsImpl> m_video;
 
     UserMediaController* m_controller;
 
     OwnPtr<NavigatorUserMediaSuccessCallback> m_successCallback;
     OwnPtr<NavigatorUserMediaErrorCallback> m_errorCallback;
 };
 
 } // namespace WebCore
 
 #endif // UserMediaRequest_h