[gnome-games] Move FirmwareError to a separate file

[Alexander Mikhaylenko <alexm src gnome org>]

commit 3513529ce2c0e86a6742527227c395726b4f3562
Author: Adwait Rawat <adwait rawat gmail com>
Date:   Mon Jun 22 21:05:07 2020 +0900

    Move FirmwareError to a separate file
    
    FirmwareError error domain was defined in firmware-manger file.
    This commit moves FirmwareError to a separate firmware-error.vala file.

 src/core/firmware-error.vala   | 5 +++++
 src/core/firmware-manager.vala | 4 ----
 src/meson.build                | 1 +
 3 files changed, 6 insertions(+), 4 deletions(-)
---
diff --git a/src/core/firmware-error.vala b/src/core/firmware-error.vala
new file mode 100644
index 00000000..c7121aa7
--- /dev/null
+++ b/src/core/firmware-error.vala
@@ -0,0 +1,5 @@
+// This file is part of GNOME Games. License: GPL-3.0+.
+
+public errordomain Games.FirmwareError {
+       FIRMWARE_NOT_FOUND,
+}
diff --git a/src/core/firmware-manager.vala b/src/core/firmware-manager.vala
index eff62985..832563ba 100644
--- a/src/core/firmware-manager.vala
+++ b/src/core/firmware-manager.vala
@@ -1,9 +1,5 @@
 // This file is part of GNOME Games. License: GPL-3.0+.
 
-errordomain Games.FirmwareError {
-       FIRMWARE_NOT_FOUND,
-}
-
 public class Games.FirmwareManager : Object {
        public void is_all_firmware_valid (Core core, Platform platform) throws Error {
                foreach (var firmware in core.get_all_firmware (platform)) {
diff --git a/src/meson.build b/src/meson.build
index 8cd6e8c8..8c55610d 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -18,6 +18,7 @@ vala_sources = [
   'core/cover.vala',
   'core/cover-loader.vala',
   'core/firmware.vala',
+  'core/firmware-error.vala',
   'core/firmware-manager.vala',
   'core/game.vala',
   'core/game-callback.vala',