linux-dmabuf-v1: hide wlr_linux_buffer_params_v1

The parameters are used when the client is in the process of
building a buffer. There's no reason why this internal
implementation detail should be exposed in our public header.

include/wlr/types/wlr_linux_dmabuf_v1.h

@@ -20,6 +20,8 @@ struct wlr_dmabuf_v1_buffer {
 	struct wl_resource *resource; // can be NULL if the client destroyed it
 	struct wlr_dmabuf_attributes attributes;
 
+	// private state
+
 	struct wl_listener release;
 };
 
@@ -36,13 +38,6 @@ bool wlr_dmabuf_v1_resource_is_buffer(struct wl_resource *buffer_resource);
 struct wlr_dmabuf_v1_buffer *wlr_dmabuf_v1_buffer_from_buffer_resource(
 	struct wl_resource *buffer_resource);
 
-struct wlr_linux_buffer_params_v1 {
-	struct wl_resource *resource;
-	struct wlr_linux_dmabuf_v1 *linux_dmabuf;
-	struct wlr_dmabuf_attributes attributes;
-	bool has_modifier;
-};
-
 /* the protocol interface */
 struct wlr_linux_dmabuf_v1 {
 	struct wl_global *global;
@@ -52,6 +47,8 @@ struct wlr_linux_dmabuf_v1 {
 		struct wl_signal destroy;
 	} events;
 
+	// private state
+
 	struct wl_listener display_destroy;
 	struct wl_listener renderer_destroy;
 };

types/wlr_linux_dmabuf_v1.c

@@ -13,6 +13,13 @@
 
 #define LINUX_DMABUF_VERSION 3
 
+struct wlr_linux_buffer_params_v1 {
+	struct wl_resource *resource;
+	struct wlr_linux_dmabuf_v1 *linux_dmabuf;
+	struct wlr_dmabuf_attributes attributes;
+	bool has_modifier;
+};
+
 static void buffer_handle_destroy(struct wl_client *client,
 		struct wl_resource *resource) {
 	wl_resource_destroy(resource);