Fixed suggesting adding more users into multi-profile session when we don't have more

ash/test/test_session_state_delegate.cc

 // Copyright (c) 2013 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/test/test_session_state_delegate.h"
 
 #include <algorithm>
 #include <string>
 
 #include "ash/shell.h"
@@ skipping 97 matching lines @@
 
 int TestSessionStateDelegate::GetMaximumNumberOfLoggedInUsers() const {
   return 3;
 }
 
 int TestSessionStateDelegate::NumberOfLoggedInUsers() const {
   // TODO(skuhne): Add better test framework to test multiple profiles.
   return has_active_user_ ? logged_in_users_ : 0;
 }
 
+int TestSessionStateDelegate::GetNumberOfAdmittedForMultiProfileUsers() const {
+  return user_list_.size() - NumberOfLoggedInUsers();
+}
+
 bool TestSessionStateDelegate::IsActiveUserSessionStarted() const {
   return active_user_session_started_;
 }
 
 bool TestSessionStateDelegate::CanLockScreen() const {
   return has_active_user_ && can_lock_screen_;
 }
 
 bool TestSessionStateDelegate::IsScreenLocked() const {
   return screen_locked_;
@@ skipping 107 matching lines @@
 void TestSessionStateDelegate::AddSessionStateObserver(
     SessionStateObserver* observer) {
 }
 
 void TestSessionStateDelegate::RemoveSessionStateObserver(
     SessionStateObserver* observer) {
 }
 
 }  // namespace test
 }  // namespace ash