[gnome-music/cherry-pick-1c94bd72] flatpak: Enable MPRIS

[Marinus Schraal <mschraal src gnome org>]

commit f922b84b56e2d847ae6c75cd65f1ece0bccad7c8
Author: Exalm <exalm7659 gmail com>
Date:   Fri Mar 30 14:28:40 2018 +0500

    flatpak: Enable MPRIS
    
    
    (cherry picked from commit 1c94bd7283c527dee23af10b62ab332ed3205532)

 org.gnome.Music.json | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/org.gnome.Music.json b/org.gnome.Music.json
index c35f9be1..6dd03609 100644
--- a/org.gnome.Music.json
+++ b/org.gnome.Music.json
@@ -17,6 +17,7 @@
         "--talk-name=org.gnome.OnlineAccounts",
         "--filesystem=xdg-run/dconf", "--filesystem=~/.config/dconf:ro",
         "--talk-name=ca.desrt.dconf", "--env=DCONF_USER_CONFIG_DIR=.config/dconf",
+        "--own-name=org.mpris.MediaPlayer2.GnomeMusic",
         "--talk-name=org.gnome.SettingsDaemon.MediaKeys",
         "--talk-name=com.intel.dleyna-server",
         "--socket=pulseaudio",