[Chrome OS] Refactor Canonicalize() method into base class to prepare for new Authenticator subclass

chrome/browser/chromeos/login/google_authenticator.h

 // Copyright (c) 2010 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 67 matching lines @@
   void CheckLocalaccount(const LoginFailure& error);
   void OnLoginFailure(const LoginFailure& error);
 
   // Call these methods on the UI thread.
   void RecoverEncryptedData(
       const std::string& old_password,
       const GaiaAuthConsumer::ClientLoginResult& credentials);
   void ResyncEncryptedData(
       const GaiaAuthConsumer::ClientLoginResult& credentials);
 
-  // Perform basic canonicalization of |email_address|, taking into account
-  // that gmail does not consider '.' or caps inside a username to matter.
-  // For example, c.masone@gmail.com == cMaSone@gmail.com, per
-  // http://mail.google.com/support/bin/answer.py?hl=en&ctx=mail&answer=10313#
-  static std::string Canonicalize(const std::string& email_address);
-
   // Callbacks from GaiaAuthenticator2
   virtual void OnClientLoginFailure(
       const GoogleServiceAuthError& error);
   virtual void OnClientLoginSuccess(
       const GaiaAuthConsumer::ClientLoginResult& credentials);
 
  private:
 
   // If we don't have the system salt yet, loads it from the CryptohomeLibrary.
   void LoadSystemSalt();
@@ skipping 101 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_