Unmanaged devices should forget device id/token

chrome/browser/policy/device_management_policy_provider.cc

Index: chrome/browser/policy/device_management_policy_provider.cc
diff --git a/chrome/browser/policy/device_management_policy_provider.cc b/chrome/browser/policy/device_management_policy_provider.cc
index 062a2fae994dd80e2a38296c7b90520387d31f47..9645445a04768190def7b1bec449b767731c66eb 100644
--- a/chrome/browser/policy/device_management_policy_provider.cc
+++ b/chrome/browser/policy/device_management_policy_provider.cc
@@ -112,6 +112,10 @@ void DeviceManagementPolicyProvider::OnError(
     LOG(WARNING) << "The device token was either invalid or unknown to the "
                  << "device manager, re-registering device.";
     token_fetcher_->Restart();
+  } else if (code ==
+             DeviceManagementBackend::kErrorServiceManagementNotSupported) {
+    VLOG(1) << "The device is no longer managed, resetting device token.";
+    token_fetcher_->Restart();
   } else {
     LOG(WARNING) << "Could not provide policy from the device manager (error = "
                  << code << "), will retry in "