Add device policy to disallow shutdown

chromeos/settings/cros_settings_names.cc

 // Copyright 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 "chromeos/settings/cros_settings_names.h"
 
 namespace chromeos {
 
 const char kCrosSettingsPrefix[] = "cros.";
 
@@ skipping 142 matching lines @@
 
 // A boolean pref that indicates whether the device has been disabled by its
 // owner. If so, the device will show a warning screen and will not allow any
 // sessions to be started.
 const char kDeviceDisabled[] = "cros.device_disabled";
 
 // A string pref containing the message that should be shown to the user when
 // the device is disabled.
 const char kDeviceDisabledMessage[] = "cros.disabled_state.message";
 
+// A boolean pref that indicates whether the user is allowed to shut down the

[bartfab (slow), 2014/12/15 18:01:57]

Nit: Reword this comment to talk about reboots rather than shutdowns. Otherwise,
we have inverse logic that is hard to follow: "indicates whether the user is
allowed to do X... if |true|, Y is forbidden."

[cschuet (SLOW), 2014/12/16 10:02:08]

Done.

+// device. If set to true, all shutdown buttons in the UI will be replaced by
+// reboot buttons.
+const char kRebootOnShutdown[] = "cros.device.reboot_on_shutdown";
+
 }  // namespace chromeos