Standardize usage of virtual/override/final in extensions/

extensions/browser/api/sockets_tcp_server/tcp_server_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_TCP_SERVER_TCP_SERVER_SOCKET_EVENT_DISPATCHER_H_
 #define EXTENSIONS_BROWSER_API_SOCKETS_TCP_SERVER_TCP_SERVER_SOCKET_EVENT_DISPATCHER_H_
 
 #include "extensions/browser/api/api_resource_manager.h"
 #include "extensions/browser/api/sockets_tcp/sockets_tcp_api.h"
 #include "extensions/browser/api/sockets_tcp_server/sockets_tcp_server_api.h"
@@ skipping 10 matching lines @@
 namespace extensions {
 namespace core_api {
 
 // Dispatch events related to "sockets.tcp" sockets from callback on native
 // socket instances. There is one instance per profile.
 class TCPServerSocketEventDispatcher
     : public BrowserContextKeyedAPI,
       public base::SupportsWeakPtr<TCPServerSocketEventDispatcher> {
  public:
   explicit TCPServerSocketEventDispatcher(content::BrowserContext* context);
-  virtual ~TCPServerSocketEventDispatcher();
+  ~TCPServerSocketEventDispatcher() override;
 
   // Server socket is active, start accepting connections from it.
   void OnServerSocketListen(const std::string& extension_id, int socket_id);
 
   // Server socket is active again, start accepting connections from it.
   void OnServerSocketResume(const std::string& extension_id, int socket_id);
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<TCPServerSocketEventDispatcher>*
       GetFactoryInstance();
@@ skipping 49 matching lines @@
   content::BrowserThread::ID thread_id_;
   content::BrowserContext* const browser_context_;
   scoped_refptr<ServerSocketData> server_sockets_;
   scoped_refptr<ClientSocketData> client_sockets_;
 };
 
 }  // namespace core_api
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_SOCKETS_TCP_SERVER_TCP_SERVER_SOCKET_EVENT_DISPATCHER_H_