Remove useless override of executionContext() in HTMLMediaElement

Source/core/dom/Node.h

Index: Source/core/dom/Node.h
diff --git a/Source/core/dom/Node.h b/Source/core/dom/Node.h
index b8f6a60801b7c2e75bc7de95e8ec3bdd7e759395..01ceb812f8d826d38f2777fe2d46702c11478d2b 100644
--- a/Source/core/dom/Node.h
+++ b/Source/core/dom/Node.h
@@ -613,7 +613,7 @@ public:
     virtual Node* toNode() OVERRIDE FINAL;
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
-    virtual ExecutionContext* executionContext() const OVERRIDE;
+    virtual ExecutionContext* executionContext() const OVERRIDE FINAL;
 
     virtual bool addEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture = false) OVERRIDE;
     virtual bool removeEventListener(const AtomicString& eventType, EventListener*, bool useCapture = false) OVERRIDE;