Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/editing

Source/core/editing/UndoStack.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 22 matching lines @@
 
 #include "platform/heap/Handle.h"
 #include "wtf/Deque.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class LocalFrame;
 class UndoStep;
 
-class UndoStack FINAL : public NoBaseWillBeGarbageCollected<UndoStack> {
+class UndoStack final : public NoBaseWillBeGarbageCollected<UndoStack> {
     DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(UndoStack)
 public:
     static PassOwnPtrWillBeRawPtr<UndoStack> create();
 
     void registerUndoStep(PassRefPtrWillBeRawPtr<UndoStep>);
     void registerRedoStep(PassRefPtrWillBeRawPtr<UndoStep>);
     void didUnloadFrame(const LocalFrame&);
     bool canUndo() const;
     bool canRedo() const;
     void undo();
     void redo();
 
     void trace(Visitor*);
 
 private:
     UndoStack();
 
     typedef WillBeHeapDeque<RefPtrWillBeMember<UndoStep> > UndoStepStack;
 
     void filterOutUndoSteps(UndoStepStack&, const LocalFrame&);
 
     bool m_inRedo;
     UndoStepStack m_undoStack;
     UndoStepStack m_redoStack;
 };
 
 } // namespace blink
 
 #endif