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

Source/modules/storage/InspectorDOMStorageAgent.h

 /*
  * Copyright (C) 2010 Google 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 35 matching lines @@
 
 typedef String ErrorString;
 
 class MODULES_EXPORT InspectorDOMStorageAgent final : public InspectorBaseAgent<InspectorDOMStorageAgent, InspectorFrontend::DOMStorage>, public InspectorBackendDispatcher::DOMStorageCommandHandler {
 public:
     static PassOwnPtrWillBeRawPtr<InspectorDOMStorageAgent> create(Page* page)
     {
         return adoptPtrWillBeNoop(new InspectorDOMStorageAgent(page));
     }
 
-    virtual ~InspectorDOMStorageAgent();
+    ~InspectorDOMStorageAgent() override;
     DECLARE_VIRTUAL_TRACE();
 
     void didDispatchDOMStorageEvent(const String& key, const String& oldValue, const String& newValue, StorageType, SecurityOrigin*);
 
 private:
     explicit InspectorDOMStorageAgent(Page*);
 
     // InspectorBaseAgent overrides.
     void disable(ErrorString*) override;
     void restore() override;
 
     // InspectorBackendDispatcher::DOMStorageCommandHandler overrides.
     void enable(ErrorString*) override;
     void getDOMStorageItems(ErrorString*, const RefPtr<JSONObject>& storageId, RefPtr<TypeBuilder::Array<TypeBuilder::Array<String>>>& items) override;
     void setDOMStorageItem(ErrorString*, const RefPtr<JSONObject>& storageId, const String& key, const String& value) override;
     void removeDOMStorageItem(ErrorString*, const RefPtr<JSONObject>& storageId, const String& key) override;
 
     StorageArea* findStorageArea(ErrorString*, const RefPtr<JSONObject>&, LocalFrame*&);
     PassRefPtr<TypeBuilder::DOMStorage::StorageId> storageId(SecurityOrigin*, bool isLocalStorage);
 
     RawPtrWillBeMember<Page> m_page;
     bool m_isEnabled;
 };
 
 } // namespace blink
 
 #endif // !defined(InspectorDOMStorageAgent_h)