[gom] gom: repository: use G_ADD_PRIVATE for type definition

[Bastien Nocera <hadess src gnome org>]

commit e56d36c285938d9825ffc5b3b8fe2d2b86b73346
Author: Victor Toso <me victortoso com>
Date:   Mon Feb 17 23:57:49 2020 +0100

    gom: repository: use G_ADD_PRIVATE for type definition
    
    The G_DEFINE_TYPE_WITH_PRIVATE call was moved as it needs to know the
    storage size of private structure.

 gom/gom-repository.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)
---
diff --git a/gom/gom-repository.c b/gom/gom-repository.c
index 2f52ff7..0f765a2 100644
--- a/gom/gom-repository.c
+++ b/gom/gom-repository.c
@@ -22,13 +22,13 @@
 #include "gom-error.h"
 #include "gom-repository.h"
 
-G_DEFINE_TYPE(GomRepository, gom_repository, G_TYPE_OBJECT)
-
 struct _GomRepositoryPrivate
 {
    GomAdapter *adapter;
 };
 
+G_DEFINE_TYPE_WITH_PRIVATE(GomRepository, gom_repository, G_TYPE_OBJECT)
+
 enum
 {
    PROP_0,
@@ -939,7 +939,6 @@ gom_repository_class_init (GomRepositoryClass *klass)
    object_class->finalize = gom_repository_finalize;
    object_class->get_property = gom_repository_get_property;
    object_class->set_property = gom_repository_set_property;
-   g_type_class_add_private(object_class, sizeof(GomRepositoryPrivate));
 
    gParamSpecs[PROP_ADAPTER] =
       g_param_spec_object("adapter",
@@ -960,8 +959,5 @@ gom_repository_class_init (GomRepositoryClass *klass)
 static void
 gom_repository_init (GomRepository *repository)
 {
-   repository->priv =
-      G_TYPE_INSTANCE_GET_PRIVATE(repository,
-                                  GOM_TYPE_REPOSITORY,
-                                  GomRepositoryPrivate);
+   repository->priv = gom_repository_get_instance_private(repository);
 }