Fix virtual/override/final usage in Source/bindings/.

Source/bindings/core/v8/V8EventListener.h

Index: Source/bindings/core/v8/V8EventListener.h
diff --git a/Source/bindings/core/v8/V8EventListener.h b/Source/bindings/core/v8/V8EventListener.h
index 4ea000aa3e371c062f2f24e480f55f73bd739be5..c2d0ac7aae08f96729c876686c7044eb0fafe4bf 100644
--- a/Source/bindings/core/v8/V8EventListener.h
+++ b/Source/bindings/core/v8/V8EventListener.h
@@ -51,7 +51,7 @@ public:
 protected:
     V8EventListener(v8::Local<v8::Object> listener, bool isAttribute, ScriptState*);
     v8::Local<v8::Function> getListenerFunction(ScriptState*);
-    virtual v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override;
+    v8::Local<v8::Value> callListenerFunction(ScriptState*, v8::Local<v8::Value>, Event*) override;
 };
 
 } // namespace blink