wlr_cursor: constify map to region box arguments

include/wlr/types/wlr_cursor.h

@@ -192,13 +192,13 @@ void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
 /**
  * Maps this cursor to an arbitrary region on the associated wlr_output_layout.
  */
-void wlr_cursor_map_to_region(struct wlr_cursor *cur, struct wlr_box *box);
+void wlr_cursor_map_to_region(struct wlr_cursor *cur, const struct wlr_box *box);
 
 /**
  * Maps inputs from this input device to an arbitrary region on the associated
  * wlr_output_layout.
  */
 void wlr_cursor_map_input_to_region(struct wlr_cursor *cur,
-	struct wlr_input_device *dev, struct wlr_box *box);
+	struct wlr_input_device *dev, const struct wlr_box *box);
 
 #endif

types/wlr_cursor.c

@@ -865,7 +865,7 @@ void wlr_cursor_map_input_to_output(struct wlr_cursor *cur,
 }
 
 void wlr_cursor_map_to_region(struct wlr_cursor *cur,
-		struct wlr_box *box) {
+		const struct wlr_box *box) {
 	if (box) {
 		if (wlr_box_empty(box)) {
 			wlr_log(WLR_ERROR, "cannot map cursor to an empty region");
@@ -878,7 +878,7 @@ void wlr_cursor_map_to_region(struct wlr_cursor *cur,
 }
 
 void wlr_cursor_map_input_to_region(struct wlr_cursor *cur,
-		struct wlr_input_device *dev, struct wlr_box *box) {
+		struct wlr_input_device *dev, const struct wlr_box *box) {
 	struct wlr_cursor_device *c_device = get_cursor_device(cur, dev);
 	if (!c_device) {
 		wlr_log(WLR_ERROR, "Cannot map device \"%s\" to geometry (not found in"