chromeos: Move files in //ash/common to //ash, part 3

ash/session/session_state_delegate.cc

 // Copyright 2014 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 "ash/common/session/session_state_delegate.h"
+#include "ash/session/session_state_delegate.h"
 
 namespace ash {
 
 bool SessionStateDelegate::IsInSecondaryLoginScreen() const {
   return GetSessionState() == session_manager::SessionState::LOGIN_SECONDARY;
 }
 
 AddUserSessionPolicy SessionStateDelegate::GetAddUserSessionPolicy() const {
   if (!IsMultiProfileAllowedByPrimaryUserPolicy())
     return AddUserSessionPolicy::ERROR_NOT_ALLOWED_PRIMARY_USER;
 
   if (NumberOfLoggedInUsers() >= GetMaximumNumberOfLoggedInUsers())
     return AddUserSessionPolicy::ERROR_MAXIMUM_USERS_REACHED;
 
   return AddUserSessionPolicy::ALLOWED;
 }
 
 }  // namespace ash