Login screen and Guest mode should use device owner preference

chrome/browser/chromeos/settings/cros_settings_names.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/settings/cros_settings_names.h"
 
 namespace chromeos {
 
 const char kCrosSettingsPrefix[] = "cros.";
 
@@ skipping 35 matching lines @@
 const char kAllowedConnectionTypesForUpdate[] =
     "cros.system.allowedConnectionTypesForUpdate";
 
 // The first constant refers to the user setting editable in the UI. The second
 // refers to the timezone policy. This seperation is necessary to allow the user
 // to temporarily change the timezone for the current session and reset it to
 // the policy's value on logout.
 const char kSystemTimezone[] = "cros.system.timezone";
 const char kSystemTimezonePolicy[] = "cros.system.timezone_policy";
 
+// Value of kUse24HourClock user preference of device' owner.
+// ChromeOS device uses this setting on login screen.
+const char kSystemUse24HourClock[] = "cros.system.use_24hour_clock";
+
 const char kDeviceOwner[] = "cros.device.owner";
 
 const char kStatsReportingPref[] = "cros.metrics.reportingEnabled";
 
 const char kReleaseChannel[] = "cros.system.releaseChannel";
 const char kReleaseChannelDelegated[] = "cros.system.releaseChannelDelegated";
 
 // A boolean pref that indicates whether OS & firmware version info should be
 // reported along with device policy requests.
 const char kReportDeviceVersionInfo[] =
@@ skipping 57 matching lines @@
 
 // A string pref for the restrict parameter to be appended to the Variations URL
 // when pinging the Variations server.
 const char kVariationsRestrictParameter[] =
     "cros.variations_restrict_parameter";
 
 // A boolean pref that indicates whether attestation is enabled for the device.
 const char kDeviceAttestationEnabled[] = "cros.device.attestation_enabled";
 
 }  // namespace chromeos