[gnome-games] retro: Adapt to serialization changes

[Adrien Plazas <aplazas src gnome org>]

commit 31322e0b41adf59b6d549d99a8a35400007f9e28
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Wed Jan 25 18:17:04 2017 +0100

    retro: Adapt to serialization changes
    
    Use Core.serialize_state() and Core.deserialize_state() instead of
    Core.serialize_size(), Core.serialize() and Core.unserialize()
    
    https://bugzilla.gnome.org/show_bug.cgi?id=777489

 src/retro/retro-runner.vala |   15 ++-------------
 1 files changed, 2 insertions(+), 13 deletions(-)
---
diff --git a/src/retro/retro-runner.vala b/src/retro/retro-runner.vala
index 6d1bcc1..45ac153 100644
--- a/src/retro/retro-runner.vala
+++ b/src/retro/retro-runner.vala
@@ -428,11 +428,7 @@ public class Games.RetroRunner : Object, Runner {
                if (!core_supports_snapshotting)
                        return;
 
-               var size = core.serialize_size ();
-               var buffer = new uint8[size];
-
-               if (!core.serialize (buffer))
-                       throw new RetroError.COULDNT_WRITE_SNAPSHOT (_("Couldn't write snapshot."));
+               var buffer = core.serialize_state ();
 
                var dir = Application.get_snapshots_dir ();
                try_make_dir (dir);
@@ -454,14 +450,7 @@ public class Games.RetroRunner : Object, Runner {
                uint8[] data = null;
                FileUtils.get_data (snapshot_path, out data);
 
-               var expected_size = core.serialize_size ();
-               if (data.length > expected_size)
-                       /* Not translated as this is not presented to the user */
-                       throw new RetroError.COULDNT_LOAD_SNAPSHOT ("[%s] Unexpected serialization data size: 
got %lu, expected %lu\n", core.file_name, data.length, expected_size);
-
-               if (!core.unserialize (data))
-                       /* Not translated as this is not presented to the user */
-                       throw new RetroError.COULDNT_LOAD_SNAPSHOT ("Could not load snapshot");
+               core.deserialize_state (data);
        }
 
        private void save_media_data () throws Error {