Expose kDeviceLoginScreenDomainAutoComplete through CrosSettings

chrome/browser/chromeos/settings/device_settings_provider.cc

Index: chrome/browser/chromeos/settings/device_settings_provider.cc
diff --git a/chrome/browser/chromeos/settings/device_settings_provider.cc b/chrome/browser/chromeos/settings/device_settings_provider.cc
index 02bb836d980022db8a2b9daf7871ef30528fcb7d..e08294ccbfc7a8ef6a2b8a2a96f45f5a4b623a6f 100644
--- a/chrome/browser/chromeos/settings/device_settings_provider.cc
+++ b/chrome/browser/chromeos/settings/device_settings_provider.cc
@@ -82,6 +82,7 @@ const char* const kKnownSettings[] = {
     kDeviceDisabledMessage,
     kRebootOnShutdown,
     kExtensionCacheSize,
+    kDeviceLoginScreenDomainAutoComplete,
 };
 
 bool HasOldMetricsFile() {
@@ -424,6 +425,20 @@ void DecodeGenericPolicies(
         kExtensionCacheSize,
         policy.extension_cache_size().extension_cache_size());
   }
+
+  // The behavior when policy is not set and when it is set to an empty string
+  // is the same. Thus lets add policy only if it is set and its value is not
+  // an empty string.
+  if (policy.has_login_screen_domain_auto_complete() &&
+      policy.login_screen_domain_auto_complete()
+          .has_login_screen_domain_auto_complete() &&
+      !policy.login_screen_domain_auto_complete()
+           .login_screen_domain_auto_complete()
+           .empty()) {
+    new_values_cache->SetString(kDeviceLoginScreenDomainAutoComplete,
+                                policy.login_screen_domain_auto_complete()
+                                    .login_screen_domain_auto_complete());
+  }
 }
 
 void DecodeDeviceState(const em::PolicyData& policy_data,