Add ash SessionStateDelegate

ash/session_state_delegate_stub.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/session_state_delegate_stub.h"
+
+#include "ash/shell.h"
+#include "ash/shell/example_factory.h"
+
+namespace ash {
+
+SessionStateDelegateStub::SessionStateDelegateStub() : screen_locked_(false) {
+}
+
+SessionStateDelegateStub::~SessionStateDelegateStub() {
+}
+
+bool SessionStateDelegateStub::HasActiveUser() const {
+  return true;
+}
+
+bool SessionStateDelegateStub::IsActiveUserSessionStarted() const {
+  return true;
+}
+
+bool SessionStateDelegateStub::CanLockScreen() const {
+  return true;
+}
+
+bool SessionStateDelegateStub::IsScreenLocked() const {
+  return screen_locked_;
+}
+
+void SessionStateDelegateStub::LockScreen() {
+  shell::CreateLockScreen();
+  screen_locked_ = true;
+  Shell::GetInstance()->UpdateShelfVisibility();
+}
+
+void SessionStateDelegateStub::UnlockScreen() {
+  screen_locked_ = false;
+  Shell::GetInstance()->UpdateShelfVisibility();
+}
+
+}  // namespace ash