Standardize usage of virtual/override/final in extensions/

extensions/browser/api/sockets_udp/udp_socket_event_dispatcher.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_BROWSER_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_
 #define EXTENSIONS_BROWSER_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_
 
 #include "extensions/browser/api/api_resource_manager.h"
 #include "extensions/browser/api/sockets_udp/sockets_udp_api.h"
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 struct Event;
 class ResumableUDPSocket;
 }
 
 namespace extensions {
 namespace core_api {
 
 // Dispatch events related to "sockets.udp" sockets from callback on native
 // socket instances. There is one instance per profile.
 class UDPSocketEventDispatcher
     : public BrowserContextKeyedAPI,
       public base::SupportsWeakPtr<UDPSocketEventDispatcher> {
  public:
   explicit UDPSocketEventDispatcher(content::BrowserContext* context);
-  virtual ~UDPSocketEventDispatcher();
+  ~UDPSocketEventDispatcher() override;
 
   // Socket is active, start receving from it.
   void OnSocketBind(const std::string& extension_id, int socket_id);
 
   // Socket is active again, start receiving data from it.
   void OnSocketResume(const std::string& extension_id, int socket_id);
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<UDPSocketEventDispatcher>*
       GetFactoryInstance();
@@ skipping 43 matching lines @@
   // Usually IO thread (except for unit testing).
   content::BrowserThread::ID thread_id_;
   content::BrowserContext* const browser_context_;
   scoped_refptr<SocketData> sockets_;
 };
 
 }  // namespace core_api
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_SOCKETS_UDP_UDP_SOCKET_EVENT_DISPATCHER_H_