[ChromeOS] Always fetch oauth cooken when signing in via extension.

chrome/browser/chromeos/login/login_performer.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_LOGIN_PERFORMER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_PERFORMER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 96 matching lines @@
   }
 
   // True if last login operation has timed out.
   bool login_timed_out() {
     return last_login_failure_.reason() == LoginFailure::LOGIN_TIMED_OUT;
   }
 
   void set_captcha(const std::string& captcha) { captcha_ = captcha; }
   void set_delegate(Delegate* delegate) { delegate_ = delegate; }
 
- private:
-
   typedef enum AuthorizationMode {
     // Authorization performed internally by Chrome.
     AUTH_MODE_INTERNAL,
     // Authorization performed by an extension.
     AUTH_MODE_EXTENSION
   } AuthorizationMode;
+  AuthorizationMode auth_mode() const { return auth_mode_; }
 
+ private:
   // NotificationObserver implementation:
   virtual void Observe(int type,
                        const NotificationSource& source,
                        const NotificationDetails& details) OVERRIDE;
 
   // SignedSettingsHelper::Callback implementation:
   virtual void OnCheckWhitelistCompleted(SignedSettings::ReturnCode code,
                                          const std::string& email) OVERRIDE;
 
   // ProfileManagerObserver implementation:
@@ skipping 77 matching lines @@
   bool using_oauth_;
 
   ScopedRunnableMethodFactory<LoginPerformer> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginPerformer);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_PERFORMER_H_