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

chrome/browser/chromeos/login/online_attempt_host.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_ONLINE_ATTEMPT_HOST_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_ONLINE_ATTEMPT_HOST_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/login/auth_attempt_state_resolver.h"
 
 class Profile;
 
 namespace chromeos {
 
 class AuthAttemptState;
 class OnlineAttempt;
+struct UserCredentials;
 
 // Helper class which hosts OnlineAttempt for online credentials checking.
 class OnlineAttemptHost : public AuthAttemptStateResolver {
  public:
   class Delegate {
     public:
      // Called after credentials were checked online.
      virtual void OnChecked(const std::string &username, bool success) = 0;
   };
 
   explicit OnlineAttemptHost(Delegate *delegate);
   virtual ~OnlineAttemptHost();
 
   // Checks credentials using an online attempt. Calls callback with the check
   // result (whether authentication was successful). Note, only one checking at
   // a time (the newest call stops the old one, if called with another username
   // and password combination).
   void Check(Profile* profile,
-             const std::string &username,
-             const std::string &password);
+             const UserCredentials& credentials);
 
   // Resets the checking process.
   void Reset();
 
   // AuthAttemptStateResolver overrides.
   // Executed on IO thread.
   virtual void Resolve() OVERRIDE;
 
   // Does an actual resolve on UI thread.
   void ResolveOnUIThread(bool success);
 
  private:
   Delegate* delegate_;
   std::string current_attempt_hash_;
   std::string current_username_;
   scoped_ptr<OnlineAttempt> online_attempt_;
   scoped_ptr<AuthAttemptState> state_;
 
   DISALLOW_COPY_AND_ASSIGN(OnlineAttemptHost);
 };
 
 }  // chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ONLINE_ATTEMPT_HOST_H_