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

Source/modules/storage/StorageEvent.h

Index: Source/modules/storage/StorageEvent.h
diff --git a/Source/modules/storage/StorageEvent.h b/Source/modules/storage/StorageEvent.h
index d57670c44e48f95dc07cdfcdbfc2f37371a3cb62..8c9163195a5bdb4be4430daad643252ced2d2984 100644
--- a/Source/modules/storage/StorageEvent.h
+++ b/Source/modules/storage/StorageEvent.h
@@ -41,7 +41,7 @@ public:
     static PassRefPtrWillBeRawPtr<StorageEvent> create();
     static PassRefPtrWillBeRawPtr<StorageEvent> create(const AtomicString& type, const String& key, const String& oldValue, const String& newValue, const String& url, Storage* storageArea);
     static PassRefPtrWillBeRawPtr<StorageEvent> create(const AtomicString&, const StorageEventInit&);
-    virtual ~StorageEvent();
+    ~StorageEvent() override;
 
     const String& key() const { return m_key; }
     const String& oldValue() const { return m_oldValue; }
@@ -54,7 +54,7 @@ public:
     // Needed once we support init<blank>EventNS
     // void initStorageEventNS(in DOMString namespaceURI, in DOMString typeArg, in boolean canBubbleArg, in boolean cancelableArg, in DOMString keyArg, in DOMString oldValueArg, in DOMString newValueArg, in DOMString urlArg, Storage storageAreaArg);
 
-    virtual const AtomicString& interfaceName() const override;
+    const AtomicString& interfaceName() const override;
 
     DECLARE_VIRTUAL_TRACE();