Add support for kiosk mode on the client. Make sure the settings are written in the lockbox.

chrome/browser/policy/cloud_policy_data_store.cc

Index: chrome/browser/policy/cloud_policy_data_store.cc
diff --git a/chrome/browser/policy/cloud_policy_data_store.cc b/chrome/browser/policy/cloud_policy_data_store.cc
index 09aeefc3a51acfb203b91726b5858deece2ab5ca..d582e787d75ad8da0ba199acf8ebb240b6a1ab29 100644
--- a/chrome/browser/policy/cloud_policy_data_store.cc
+++ b/chrome/browser/policy/cloud_policy_data_store.cc
@@ -161,6 +161,16 @@ bool CloudPolicyDataStore::known_machine_id() const {
 }
 
 #if defined(OS_CHROMEOS)
+void CloudPolicyDataStore::set_device_mode(
+    EnterpriseInstallAttributes::DeviceMode device_mode) {
+  device_mode_ = device_mode;
+}
+
+EnterpriseInstallAttributes::DeviceMode
+    CloudPolicyDataStore::device_mode() const {
+  return device_mode_;
+}
+
 DeviceStatusCollector*
     CloudPolicyDataStore::device_status_collector() {
   return device_status_collector_.get();
@@ -170,7 +180,7 @@ void CloudPolicyDataStore::set_device_status_collector(
     DeviceStatusCollector* collector) {
   device_status_collector_.reset(collector);
 }
-#endif
+#endif  // OS_CHROMEOS
 
 void CloudPolicyDataStore::AddObserver(
     CloudPolicyDataStore::Observer* observer) {