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

Source/core/frame/Console.h

Index: Source/core/frame/Console.h
diff --git a/Source/core/frame/Console.h b/Source/core/frame/Console.h
index 5424dcb79d1ae933a1828165fa1d30469bfbdf12..17aadc96d3bb81cc1e1d1771c0e0b6e1b6a15731 100644
--- a/Source/core/frame/Console.h
+++ b/Source/core/frame/Console.h
@@ -49,13 +49,13 @@ public:
     {
         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*);