[cros] Resolve online login attempt on UI thread.

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_
 #pragma once
 
 #include <string>
 
@@ skipping 25 matching lines @@
   // 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);
 
   // 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_refptr<OnlineAttempt> online_attempt_;
   scoped_ptr<AuthAttemptState> state_;
 
   DISALLOW_COPY_AND_ASSIGN(OnlineAttemptHost);
 };
 
 }  // chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ONLINE_ATTEMPT_HOST_H_