[gnome-games] core: Add Plugin.get_uri_game_factories ()

[Adrien Plazas <aplazas src gnome org>]

commit f6269d9bf91bb8e223a33ebdb78f3735468a8695
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu May 4 14:14:09 2017 +0200

    core: Add Plugin.get_uri_game_factories ()
    
    This will allow plugins to expose factories to build games from URIs.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781334

 src/core/plugin.vala |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/core/plugin.vala b/src/core/plugin.vala
index ce1b83b..847da84 100644
--- a/src/core/plugin.vala
+++ b/src/core/plugin.vala
@@ -12,4 +12,8 @@ public interface Games.Plugin : Object {
        public virtual UriSource[] get_uri_sources () {
                return {};
        }
+
+       public virtual UriGameFactory[] get_uri_game_factories () {
+               return {};
+       }
 }