Standardize usage of virtual/override/final in remoting/

remoting/signaling/xmpp_signal_strategy.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.
 
 // The XmppSignalStrategy encapsulates all the logic to perform the signaling
 // STUN/ICE for jingle via a direct XMPP connection.
 //
 // This class is not threadsafe.
 
 #ifndef REMOTING_SIGNALING_XMPP_SIGNAL_STRATEGY_H_
@@ skipping 39 matching lines @@
 
     std::string username;
     std::string auth_token;
     std::string auth_service;
   };
 
   XmppSignalStrategy(
       net::ClientSocketFactory* socket_factory,
       scoped_refptr<net::URLRequestContextGetter> request_context_getter,
       const XmppServerConfig& xmpp_server_config);
-  virtual ~XmppSignalStrategy();
+  ~XmppSignalStrategy() override;
 
   // SignalStrategy interface.
-  virtual void Connect() override;
-  virtual void Disconnect() override;
-  virtual State GetState() const override;
-  virtual Error GetError() const override;
-  virtual std::string GetLocalJid() const override;
-  virtual void AddListener(Listener* listener) override;
-  virtual void RemoveListener(Listener* listener) override;
-  virtual bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) override;
-  virtual std::string GetNextId() override;
+  void Connect() override;
+  void Disconnect() override;
+  State GetState() const override;
+  Error GetError() const override;
+  std::string GetLocalJid() const override;
+  void AddListener(Listener* listener) override;
+  void RemoveListener(Listener* listener) override;
+  bool SendStanza(scoped_ptr<buzz::XmlElement> stanza) override;
+  std::string GetNextId() override;
 
   // buzz::XmppStanzaHandler interface.
-  virtual bool HandleStanza(const buzz::XmlElement* stanza) override;
+  bool HandleStanza(const buzz::XmlElement* stanza) override;
 
   // This method is used to update the auth info (for example when the OAuth
   // access token is renewed). It is OK to call this even when we are in the
   // CONNECTED state. It will be used on the next Connect() call.
   void SetAuthInfo(const std::string& username,
                    const std::string& auth_token,
                    const std::string& auth_service);
 
   // Use this method to override the default resource name used (optional).
   // This will be used on the next Connect() call.
@@ skipping 21 matching lines @@
   ObserverList<Listener, true> listeners_;
 
   base::RepeatingTimer<XmppSignalStrategy> keep_alive_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(XmppSignalStrategy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_SIGNALING_XMPP_SIGNAL_STRATEGY_H_