Focus kept on login screen.

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 "ash/shell.h"
 #include "ash/system/user/login_status.h"
 #include "base/strings/string16.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 35 matching lines @@
 
 void TestSessionStateDelegate::LockScreen() {
   if (CanLockScreen())
     screen_locked_ = true;
 }
 
 void TestSessionStateDelegate::UnlockScreen() {
   screen_locked_ = false;
 }
 
+bool TestSessionStateDelegate::IsUserSessionBlocked() const {
+  return !IsActiveUserSessionStarted() || IsScreenLocked();
+}
+
 void TestSessionStateDelegate::SetHasActiveUser(bool has_active_user) {
   has_active_user_ = has_active_user;
   if (!has_active_user)
     active_user_session_started_ = false;
   else
     Shell::GetInstance()->ShowLauncher();
 }
 
 void TestSessionStateDelegate::SetActiveUserSessionStarted(
     bool active_user_session_started) {
@@ skipping 40 matching lines @@
 void TestSessionStateDelegate::AddSessionStateObserver(
     SessionStateObserver* observer) {
 }
 
 void TestSessionStateDelegate::RemoveSessionStateObserver(
     SessionStateObserver* observer) {
 }
 
 }  // namespace test
 }  // namespace ash