[mutter] tests: Make test backend inherit MetaBackendX11Nested

[Jonas Ådahl <jadahl src gnome org>]

commit e20e60783a915ae8af069f59fa59890175ebae7e
Author: Jonas Ådahl <jadahl gmail com>
Date:   Tue Feb 21 16:55:04 2017 +0800

    tests: Make test backend inherit MetaBackendX11Nested
    
    The test backend must inherit the nested backend, as MetaBackendX11 is
    not complete.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779745

 src/backends/x11/nested/meta-backend-x11-nested.c |    5 -----
 src/backends/x11/nested/meta-backend-x11-nested.h |    9 +++++++--
 src/tests/meta-backend-test.c                     |    4 ++--
 src/tests/meta-backend-test.h                     |    4 ++--
 4 files changed, 11 insertions(+), 11 deletions(-)
---
diff --git a/src/backends/x11/nested/meta-backend-x11-nested.c 
b/src/backends/x11/nested/meta-backend-x11-nested.c
index 0225994..7930e3f 100644
--- a/src/backends/x11/nested/meta-backend-x11-nested.c
+++ b/src/backends/x11/nested/meta-backend-x11-nested.c
@@ -27,11 +27,6 @@
 
 #include "wayland/meta-wayland.h"
 
-struct _MetaBackendX11Nested
-{
-  MetaBackendX11 parent;
-};
-
 G_DEFINE_TYPE (MetaBackendX11Nested, meta_backend_x11_nested,
                META_TYPE_BACKEND_X11)
 
diff --git a/src/backends/x11/nested/meta-backend-x11-nested.h 
b/src/backends/x11/nested/meta-backend-x11-nested.h
index 31ae96f..6f2c265 100644
--- a/src/backends/x11/nested/meta-backend-x11-nested.h
+++ b/src/backends/x11/nested/meta-backend-x11-nested.h
@@ -25,7 +25,12 @@
 #include "backends/x11/meta-backend-x11.h"
 
 #define META_TYPE_BACKEND_X11_NESTED (meta_backend_x11_nested_get_type ())
-G_DECLARE_FINAL_TYPE (MetaBackendX11Nested, meta_backend_x11_nested,
-                      META, BACKEND_X11_NESTED, MetaBackendX11)
+G_DECLARE_DERIVABLE_TYPE (MetaBackendX11Nested, meta_backend_x11_nested,
+                          META, BACKEND_X11_NESTED, MetaBackendX11)
+
+struct _MetaBackendX11NestedClass
+{
+  MetaBackendX11Class parent_class;
+};
 
 #endif /* META_BACKEND_X11_NESTED_H */
diff --git a/src/tests/meta-backend-test.c b/src/tests/meta-backend-test.c
index e516c86..4abe0b7 100644
--- a/src/tests/meta-backend-test.c
+++ b/src/tests/meta-backend-test.c
@@ -25,10 +25,10 @@
 
 struct _MetaBackendTest
 {
-  MetaBackendX11 parent;
+  MetaBackendX11Nested parent;
 };
 
-G_DEFINE_TYPE (MetaBackendTest, meta_backend_test, META_TYPE_BACKEND_X11)
+G_DEFINE_TYPE (MetaBackendTest, meta_backend_test, META_TYPE_BACKEND_X11_NESTED)
 
 static void
 meta_backend_test_init (MetaBackendTest *backend_test)
diff --git a/src/tests/meta-backend-test.h b/src/tests/meta-backend-test.h
index e666212..4ac04e0 100644
--- a/src/tests/meta-backend-test.h
+++ b/src/tests/meta-backend-test.h
@@ -20,10 +20,10 @@
 #ifndef META_BACKEND_TEST_H
 #define META_BACKEND_TEST_H
 
-#include "backends/x11/meta-backend-x11.h"
+#include "backends/x11/nested/meta-backend-x11-nested.h"
 
 #define META_TYPE_BACKEND_TEST (meta_backend_test_get_type ())
 G_DECLARE_FINAL_TYPE (MetaBackendTest, meta_backend_test,
-                      META, BACKEND_TEST, MetaBackendX11)
+                      META, BACKEND_TEST, MetaBackendX11Nested)
 
 #endif /* META_BACKEND_TEST_H */