Support for auth code based authentication flow for both app and web UI driven flow.

chrome/browser/chromeos/login/login_display.h

 // Copyright (c) 2012 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_LOGIN_DISPLAY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 23 matching lines @@
     // Cancels current password changed flow.
     virtual void CancelPasswordChangedFlow() = 0;
 
     // Create new Google account.
     virtual void CreateAccount() = 0;
 
     // Create a new locally managed user.
     virtual void CreateLocallyManagedUser(const string16& display_name,
                                           const std::string& password) = 0;
 
-    // Complete sign process with specified |username| and |password|.
+    // Complete sign process with specified |credentials|.
     // Used for new users authenticated through an extension.
-    virtual void CompleteLogin(const std::string& username,
-                               const std::string& password) = 0;
+    virtual void CompleteLogin(const UserCredentials& credentials) = 0;
 
     // Returns name of the currently connected network.
     virtual string16 GetConnectedNetworkName() = 0;
 
     // Sign in using |username| and |password| specified.
     // Used for known users only.
-    virtual void Login(const std::string& username,
-                       const std::string& password) = 0;
+    virtual void Login(const UserCredentials& credentials) = 0;
 
     // Sign in as a retail mode user.
     virtual void LoginAsRetailModeUser() = 0;
 
     // Sign in into guest session.
     virtual void LoginAsGuest() = 0;
 
     // Decrypt cryptohome using user provided |old_password|
     // and migrate to new password.
     virtual void MigrateUserData(const std::string& old_password) = 0;
@@ skipping 110 matching lines @@
 
   // Bounds of the login UI background.
   gfx::Rect background_bounds_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginDisplay);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_DISPLAY_H_