Standardize usage of virtual/override/final in components/

components/signin/core/browser/account_tracker_service.cc

 // 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.
 
 #include "components/signin/core/browser/account_tracker_service.h"
 
 #include "base/debug/trace_event.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "base/profiler/scoped_profile.h"
@@ skipping 14 matching lines @@
 
 }
 
 class AccountInfoFetcher : public OAuth2TokenService::Consumer,
                            public gaia::GaiaOAuthClient::Delegate {
  public:
   AccountInfoFetcher(OAuth2TokenService* token_service,
                      net::URLRequestContextGetter* request_context_getter,
                      AccountTrackerService* service,
                      const std::string& account_id);
-  virtual ~AccountInfoFetcher();
+  ~AccountInfoFetcher() override;
 
   const std::string& account_id() { return account_id_; }
 
   void Start();
 
   // OAuth2TokenService::Consumer implementation.
-  virtual void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
-                                 const std::string& access_token,
-                                 const base::Time& expiration_time) override;
-  virtual void OnGetTokenFailure(const OAuth2TokenService::Request* request,
-                                 const GoogleServiceAuthError& error) override;
+  void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
+                         const std::string& access_token,
+                         const base::Time& expiration_time) override;
+  void OnGetTokenFailure(const OAuth2TokenService::Request* request,
+                         const GoogleServiceAuthError& error) override;
 
   // gaia::GaiaOAuthClient::Delegate implementation.
-  virtual void OnGetUserInfoResponse(
+  void OnGetUserInfoResponse(
       scoped_ptr<base::DictionaryValue> user_info) override;
-  virtual void OnOAuthError() override;
-  virtual void OnNetworkError(int response_code) override;
+  void OnOAuthError() override;
+  void OnNetworkError(int response_code) override;
 
  private:
   OAuth2TokenService* token_service_;
   net::URLRequestContextGetter* request_context_getter_;
   AccountTrackerService* service_;
   const std::string account_id_;
 
   scoped_ptr<OAuth2TokenService::Request> login_token_request_;
   scoped_ptr<gaia::GaiaOAuthClient> gaia_oauth_client_;
 };
@@ skipping 378 matching lines @@
   }
 }
 
 void AccountTrackerService::LoadFromTokenService() {
   std::vector<std::string> accounts = token_service_->GetAccounts();
   for (std::vector<std::string>::const_iterator it = accounts.begin();
        it != accounts.end(); ++it) {
     OnRefreshTokenAvailable(*it);
   }
 }