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..a33b23f9422ce5d2f8af6361bc17bf12f4fb1e49 100644
--- a/chrome/browser/chromeos/settings/device_settings_provider.cc
+++ b/chrome/browser/chromeos/settings/device_settings_provider.cc
@@ -51,6 +51,7 @@ const char* const kKnownSettings[] = {
     kAccountsPrefSupervisedUsersEnabled,
     kAccountsPrefTransferSAMLCookies,
     kAccountsPrefUsers,
+    kAccountsPrefLoginScreenDomainAutoComplete,
     kAllowRedeemChromeOsRegistrationOffers,
     kAllowedConnectionTypesForUpdate,
     kAttestationForContentProtectionEnabled,
@@ -246,6 +247,20 @@ void DecodeLoginPolicies(
         kAccountsPrefTransferSAMLCookies,
         policy.saml_settings().transfer_saml_cookies());
   }
+
+  // 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(kAccountsPrefLoginScreenDomainAutoComplete,
+                                policy.login_screen_domain_auto_complete()
+                                    .login_screen_domain_auto_complete());
+  }
 }
 
 void DecodeNetworkPolicies(