Update HTML forms classes to use OVERRIDE / FINAL when needed

Source/core/html/forms/FileInputType.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2011 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 23 matching lines @@
 
 #include "core/html/forms/BaseClickableWithKeyInputType.h"
 #include "platform/FileChooser.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class DragData;
 class FileList;
 
-class FileInputType : public BaseClickableWithKeyInputType, private FileChooserClient {
+class FileInputType FINAL : public BaseClickableWithKeyInputType, private FileChooserClient {
 public:
     static PassRefPtr<InputType> create(HTMLInputElement&);
     static Vector<FileChooserFileInfo> filesFromFormControlState(const FormControlState&);
 
 private:
     FileInputType(HTMLInputElement&);
     virtual const AtomicString& formControlType() const OVERRIDE;
     virtual FormControlState saveFormControlState() const OVERRIDE;
     virtual void restoreFormControlState(const FormControlState&) OVERRIDE;
     virtual bool appendFormData(FormDataList&, bool) const OVERRIDE;
@@ skipping 22 matching lines @@
     void receiveDropForDirectoryUpload(const Vector<String>&);
 
     RefPtr<FileList> m_fileList;
 
     String m_droppedFileSystemId;
 };
 
 } // namespace WebCore
 
 #endif // FileInputType_h