Standardize usage of virtual/override/final in google_apis/

google_apis/gaia/identity_provider.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 GOOGLE_APIS_GAIA_IDENTITY_PROVIDER_H_
 #define GOOGLE_APIS_GAIA_IDENTITY_PROVIDER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 23 matching lines @@
     // Called when the active GAIA account logs out. The account information may
     // have been cleared already when this method is called. The
     // |IdentityProvider| methods may return inconsistent or outdated
     // information if called from within OnLogout().
     virtual void OnActiveAccountLogout() {}
 
    protected:
     virtual ~Observer();
   };
 
-  virtual ~IdentityProvider();
+  ~IdentityProvider() override;
 
   // Adds and removes observers that will be notified of changes to the refresh
   // token availability for the active account.
   void AddActiveAccountRefreshTokenObserver(
       OAuth2TokenService::Observer* observer);
   void RemoveActiveAccountRefreshTokenObserver(
       OAuth2TokenService::Observer* observer);
 
   // Gets the active account's user name.
   virtual std::string GetActiveUsername() = 0;
 
   // Gets the active account's account ID.
   virtual std::string GetActiveAccountId() = 0;
 
   // Gets the token service vending OAuth tokens for all logged-in accounts.
   virtual OAuth2TokenService* GetTokenService() = 0;
 
   // Requests login to a GAIA account. Implementations can show a login UI, log
   // in automatically if sufficient credentials are available or may ignore the
   // request. Returns true if the login request was processed and false if it
   // was ignored.
   virtual bool RequestLogin() = 0;
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // OAuth2TokenService::Observer:
-  virtual void OnRefreshTokenAvailable(const std::string& account_id) override;
-  virtual void OnRefreshTokenRevoked(const std::string& account_id) override;
-  virtual void OnRefreshTokensLoaded() override;
+  void OnRefreshTokenAvailable(const std::string& account_id) override;
+  void OnRefreshTokenRevoked(const std::string& account_id) override;
+  void OnRefreshTokensLoaded() override;
 
  protected:
   IdentityProvider();
 
   // Fires an OnActiveAccountLogin notification.
   void FireOnActiveAccountLogin();
 
   // Fires an OnActiveAccountLogout notification.
   void FireOnActiveAccountLogout();
 
  private:
   ObserverList<Observer, true> observers_;
   ObserverList<OAuth2TokenService::Observer, true> token_service_observers_;
   int token_service_observer_count_;
 
   DISALLOW_COPY_AND_ASSIGN(IdentityProvider);
 };
 
 #endif  // GOOGLE_APIS_GAIA_IDENTITY_PROVIDER_H_