OAuth2 sign-in flow for ChromeOS

chrome/browser/chromeos/login/existing_user_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/existing_user_controller.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 980 matching lines @@
       break;
   }
 
   login_display_->ShowError(error_id, num_login_attempts_, help_topic_id);
 }
 
 void ExistingUserController::ShowGaiaPasswordChanged(
     const std::string& username) {
   // Invalidate OAuth token, since it can't be correct after password is
   // changed.
-  UserManager::Get()->SaveUserOAuthStatus(username,
-                                          User::OAUTH_TOKEN_STATUS_INVALID);
+  UserManager::Get()->SaveUserOAuthStatus(
+      username,
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kForceOAuth2) ?
+          User::OAUTH2_TOKEN_STATUS_INVALID :
+          User::OAUTH1_TOKEN_STATUS_INVALID);
 
   login_display_->SetUIEnabled(true);
   login_display_->ShowGaiaPasswordChanged(username);
 }
 
 }  // namespace chromeos