Update worker classes to use OVERRIDE / FINAL when needed

Source/core/workers/WorkerConsole.h

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 25 matching lines @@
 #include "core/frame/ConsoleTypes.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
 class ScriptArguments;
 
-class WorkerConsole : public RefCounted<WorkerConsole>, public ConsoleBase, public ScriptWrappable {
+class WorkerConsole FINAL : public RefCounted<WorkerConsole>, public ConsoleBase, public ScriptWrappable {
 public:
     using RefCounted<WorkerConsole>::ref;
     using RefCounted<WorkerConsole>::deref;
 
     static PassRefPtr<WorkerConsole> create(WorkerGlobalScope* scope) { return adoptRef(new WorkerConsole(scope)); }
     virtual ~WorkerConsole();
 
 protected:
-    virtual ExecutionContext* context();
+    virtual ExecutionContext* context() OVERRIDE;
     virtual void reportMessageToClient(MessageLevel, const String& message, PassRefPtr<ScriptCallStack>) OVERRIDE;
 
 private:
     explicit WorkerConsole(WorkerGlobalScope*);
 
-    virtual void refConsole() { ref(); }
-    virtual void derefConsole() { deref(); }
+    virtual void refConsole() OVERRIDE { ref(); }
+    virtual void derefConsole() OVERRIDE { deref(); }
 
     WorkerGlobalScope* m_scope;
 };
 
 } // namespace WebCore
 
 #endif // WorkerConsole_h