Standardize usage of virtual/override/final in remoting/

remoting/host/setup/oauth_client.h

 // Copyright 2013 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 REMOTING_HOST_SETUP_OAUTH_CLIENT
 #define REMOTING_HOST_SETUP_OAUTH_CLIENT
 
 #include <queue>
 #include <string>
 
@@ skipping 15 matching lines @@
   // Called when GetCredentialsFromAuthCode is completed, with the |user_email|
   // and |refresh_token| that correspond to the given |auth_code|, or with empty
   // strings on error.
   typedef base::Callback<void(
       const std::string& user_email,
       const std::string& refresh_token)> CompletionCallback;
 
   OAuthClient(
       scoped_refptr<net::URLRequestContextGetter> url_request_context_getter);
 
-  virtual ~OAuthClient();
+  ~OAuthClient() override;
 
   // Redeems |auth_code| using |oauth_client_info| to obtain |refresh_token| and
   // |access_token|, then uses the userinfo endpoint to obtain |user_email|.
   // Calls CompletionCallback with |user_email| and |refresh_token| when done,
   // or with empty strings on error.
   // If a request is received while another one is  being processed, it is
   // enqueued and processed after the first one is finished.
   void GetCredentialsFromAuthCode(
       const gaia::OAuthClientInfo& oauth_client_info,
       const std::string& auth_code,
       CompletionCallback on_done);
 
   // gaia::GaiaOAuthClient::Delegate
-  virtual void OnGetTokensResponse(const std::string& refresh_token,
-                                 const std::string& access_token,
-                                 int expires_in_seconds) override;
-  virtual void OnRefreshTokenResponse(const std::string& access_token,
-                                      int expires_in_seconds) override;
-  virtual void OnGetUserEmailResponse(const std::string& user_email) override;
+  void OnGetTokensResponse(const std::string& refresh_token,
+                           const std::string& access_token,
+                           int expires_in_seconds) override;
+  void OnRefreshTokenResponse(const std::string& access_token,
+                              int expires_in_seconds) override;
+  void OnGetUserEmailResponse(const std::string& user_email) override;
 
-  virtual void OnOAuthError() override;
-  virtual void OnNetworkError(int response_code) override;
+  void OnOAuthError() override;
+  void OnNetworkError(int response_code) override;
 
  private:
   struct Request {
     Request(const gaia::OAuthClientInfo& oauth_client_info,
             const std::string& auth_code,
             CompletionCallback on_done);
     virtual ~Request();
     gaia::OAuthClientInfo oauth_client_info;
     std::string auth_code;
     CompletionCallback on_done;
   };
 
   void SendResponse(const std::string& user_email,
                     const std::string& refresh_token);
 
   std::queue<Request> pending_requests_;
   gaia::GaiaOAuthClient gaia_oauth_client_;
   std::string refresh_token_;
   CompletionCallback on_done_;
 
   DISALLOW_COPY_AND_ASSIGN(OAuthClient);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_SETUP_OAUTH_CLIENT