[gnome-games] tracker: Move TrackerError to its own file

[Adrien Plazas <aplazas src gnome org>]

commit 47b6282091af966a8811a434b1cf1866bc7b5059
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Thu Apr 13 15:14:14 2017 +0200

    tracker: Move TrackerError to its own file
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781334

 src/Makefile.am                |    1 +
 src/tracker/tracker-error.vala |    5 +++++
 2 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index ef96e1e..ba97b4a 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -104,6 +104,7 @@ gnome_games_SOURCES = \
        retro/retro-runner.vala \
        \
        tracker/mime-type-tracker-uri-query.vala \
+       tracker/tracker-error.vala \
        tracker/tracker-uri-iterator.vala \
        tracker/tracker-uri-query.vala \
        tracker/tracker-uri-source.vala \
diff --git a/src/tracker/tracker-error.vala b/src/tracker/tracker-error.vala
new file mode 100644
index 0000000..05b3e53
--- /dev/null
+++ b/src/tracker/tracker-error.vala
@@ -0,0 +1,5 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+public errordomain TrackerError {
+       FILE_NOT_FOUND,
+}