Fix virtual/override/final usage in the rest of Source/core/.

Source/core/frame/Console.h

 /*
  * Copyright (C) 2007 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:
  *
  * 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 @@
 class LocalFrame;
 
 class Console final : public ConsoleBase, public DOMWindowProperty, public HeapSupplementable<Console> {
     USING_GARBAGE_COLLECTED_MIXIN(Console);
     DEFINE_WRAPPERTYPEINFO();
 public:
     static Console* create(LocalFrame* frame)
     {
         return new Console(frame);
     }
-    virtual ~Console();
+    ~Console() override;
 
     DECLARE_VIRTUAL_TRACE();
 
 protected:
-    virtual ExecutionContext* context() override;
-    virtual void reportMessageToConsole(PassRefPtrWillBeRawPtr<ConsoleMessage>) override;
+    ExecutionContext* context() override;
+    void reportMessageToConsole(PassRefPtrWillBeRawPtr<ConsoleMessage>) override;
 
 private:
     explicit Console(LocalFrame*);
 };
 
 } // namespace blink
 
 #endif // Console_h