compositor: Make all exported objects wl_resources
diff --git a/compositor/screenshooter.c b/compositor/screenshooter.c
index 4d7660d..2cf1be6 100644
--- a/compositor/screenshooter.c
+++ b/compositor/screenshooter.c
@@ -28,7 +28,7 @@
 
 static void
 screenshooter_shoot(struct wl_client *client,
-		    struct screenshooter *shooter,
+		    struct wl_resource *resource,
 		    struct wl_output *output_base, struct wl_buffer *buffer)
 {
 	struct wlsc_output *output = (struct wlsc_output *) output_base;