[gnome-games] dummy: Add DummyGame.get_uid()

[Adrien Plazas <aplazas src gnome org>]

commit ccf61f5511cf783bb8d23ea23da475a91b1e7ed8
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Tue Jul 10 18:48:40 2018 +0500

    dummy: Add DummyGame.get_uid()
    
    This will be used in subsequent commits to add Game.get_uid().

 src/dummy/dummy-game.vala | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/src/dummy/dummy-game.vala b/src/dummy/dummy-game.vala
index 980abff..7a9a027 100644
--- a/src/dummy/dummy-game.vala
+++ b/src/dummy/dummy-game.vala
@@ -18,6 +18,10 @@ private class Games.DummyGame : Object, Game {
                _name = name.strip ();
        }
 
+       public Uid get_uid () {
+               return new DummyUid ();
+       }
+
        public Icon get_icon () {
                return new DummyIcon ();
        }