org.chromium.UrlHandlerService.conf

<!DOCTYPE busconfig PUBLIC "-//freedesktop//DTD D-BUS Bus Configuration 1.0//EN"
  "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
<!--
  Copyright 2018 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.
-->
<busconfig>
  <policy user="chronos">
    <allow own="org.chromium.UrlHandlerService"/>
  </policy>
  <policy user="vm_cicerone">
    <!-- methods allowed -->
    <allow send_destination="org.chromium.UrlHandlerService"
           send_interface="org.chromium.UrlHandlerServiceInterface"
           send_member="OpenUrl"/>
  </policy>
</busconfig>