Update {virtual,override,final} to follow C++11 style in chrome/browser/chromeos/settings.

chrome/browser/chromeos/settings/device_oauth2_token_service.h

Index: chrome/browser/chromeos/settings/device_oauth2_token_service.h
diff --git a/chrome/browser/chromeos/settings/device_oauth2_token_service.h b/chrome/browser/chromeos/settings/device_oauth2_token_service.h
index dab3170eb9abb619ec9c480a8225798e06db45df..0d5f1fe6bc045f3930d95eba218afedd32dd20ec 100644
--- a/chrome/browser/chromeos/settings/device_oauth2_token_service.h
+++ b/chrome/browser/chromeos/settings/device_oauth2_token_service.h
@@ -56,30 +56,29 @@ class DeviceOAuth2TokenService : public OAuth2TokenService,
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
   // Implementation of OAuth2TokenService.
-  virtual bool RefreshTokenIsAvailable(const std::string& account_id)
-      const override;
+  bool RefreshTokenIsAvailable(const std::string& account_id) const override;
 
   // Pull the robot account ID from device policy.
   virtual std::string GetRobotAccountId() const;
 
   // gaia::GaiaOAuthClient::Delegate implementation.
-  virtual void OnRefreshTokenResponse(const std::string& access_token,
-                                      int expires_in_seconds) override;
-  virtual void OnGetTokenInfoResponse(
+  void OnRefreshTokenResponse(const std::string& access_token,
+                              int expires_in_seconds) override;
+  void OnGetTokenInfoResponse(
       scoped_ptr<base::DictionaryValue> token_info) override;
-  virtual void OnOAuthError() override;
-  virtual void OnNetworkError(int response_code) override;
+  void OnOAuthError() override;
+  void OnNetworkError(int response_code) override;
 
  protected:
   // Implementation of OAuth2TokenService.
-  virtual net::URLRequestContextGetter* GetRequestContext() override;
-  virtual void FetchOAuth2Token(RequestImpl* request,
-                                const std::string& account_id,
-                                net::URLRequestContextGetter* getter,
-                                const std::string& client_id,
-                                const std::string& client_secret,
-                                const ScopeSet& scopes) override;
-  virtual OAuth2AccessTokenFetcher* CreateAccessTokenFetcher(
+  net::URLRequestContextGetter* GetRequestContext() override;
+  void FetchOAuth2Token(RequestImpl* request,
+                        const std::string& account_id,
+                        net::URLRequestContextGetter* getter,
+                        const std::string& client_id,
+                        const std::string& client_secret,
+                        const ScopeSet& scopes) override;
+  OAuth2AccessTokenFetcher* CreateAccessTokenFetcher(
       const std::string& account_id,
       net::URLRequestContextGetter* getter,
       OAuth2AccessTokenConsumer* consumer) override;
@@ -109,7 +108,7 @@ class DeviceOAuth2TokenService : public OAuth2TokenService,
   // Ownership of |token_encryptor| will be taken.
   explicit DeviceOAuth2TokenService(net::URLRequestContextGetter* getter,
                                     PrefService* local_state);
-  virtual ~DeviceOAuth2TokenService();
+  ~DeviceOAuth2TokenService() override;
 
   // Returns the refresh token for account_id.
   std::string GetRefreshToken(const std::string& account_id) const;