Clang build break fixes.

chrome/browser/chromeos/login/google_authenticator.h

 // Copyright (c) 2011 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 CHROME_BROWSER_CHROMEOS_LOGIN_GOOGLE_AUTHENTICATOR_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_GOOGLE_AUTHENTICATOR_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 99 matching lines @@
       const GaiaAuthConsumer::ClientLoginResult& credentials) OVERRIDE;
   virtual void RetryAuth(Profile* profile,
                          const std::string& username,
                          const std::string& password,
                          const std::string& login_token,
                          const std::string& login_captcha) OVERRIDE;
   virtual void VerifyOAuth1AccessToken(const std::string& auth1_token,
       const std::string& oauth1_secret) OVERRIDE;
   virtual std::string EncryptToken(const std::string& token) OVERRIDE;
   virtual std::string DecryptToken(const std::string& encrypted_token) OVERRIDE;
-  virtual std::string DecryptLegacyToken(
-      const std::string& encrypted_token) OVERRIDE;
 
   // Callbacks from GaiaAuthFetcher
   virtual void OnClientLoginFailure(
       const GoogleServiceAuthError& error) OVERRIDE;
   virtual void OnClientLoginSuccess(
       const GaiaAuthConsumer::ClientLoginResult& credentials) OVERRIDE;
 
  private:
 
   // If we don't have the system salt yet, loads it from the CryptohomeLibrary.
@@ skipping 113 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(GoogleAuthenticatorTest, LoginNetFailure);
   FRIEND_TEST_ALL_PREFIXES(GoogleAuthenticatorTest, LoginDenied);
   FRIEND_TEST_ALL_PREFIXES(GoogleAuthenticatorTest, TwoFactorLogin);
 
   DISALLOW_COPY_AND_ASSIGN(GoogleAuthenticator);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_GOOGLE_AUTHENTICATOR_H_