chromeos: Move EnableScreenLock to PowerManagerClient from PowerLibrary

chrome/browser/chromeos/system/screen_locker_settings.h

Index: chrome/browser/chromeos/system/screen_locker_settings.h
diff --git a/chrome/browser/chromeos/system/screen_locker_settings.h b/chrome/browser/chromeos/system/screen_locker_settings.h
new file mode 100644
index 0000000000000000000000000000000000000000..6baa9ae9fea14f435add053fd0262c384ad9f983
--- /dev/null
+++ b/chrome/browser/chromeos/system/screen_locker_settings.h
@@ -0,0 +1,20 @@
+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_SYSTEM_SCREEN_LOCKER_SETTINGS_H_
+#define CHROME_BROWSER_CHROMEOS_SYSTEM_SCREEN_LOCKER_SETTINGS_H_
+#pragma once
+
+namespace chromeos {
+namespace system {
+namespace screen_locker_settings {
+
+// Enables/disables screen locking.
+void EnableScreenLock(bool enabled);
+
+}  // namespace screen_locker_settings
+}  // namespace system
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_SCREEN_LOCKER_SETTINGS_H_