libinput: Forward frame events to clients

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=77353

Signed-off-by: Jonas Ådahl <jadahl@gmail.com>
diff --git a/src/data-device.c b/src/data-device.c
index 483e22e..6a81bc8 100644
--- a/src/data-device.c
+++ b/src/data-device.c
@@ -497,6 +497,11 @@
 }
 
 static void
+drag_grab_touch_frame(struct weston_touch_grab *grab)
+{
+}
+
+static void
 drag_grab_touch_cancel(struct weston_touch_grab *grab)
 {
 	struct weston_touch_drag *touch_drag =
@@ -511,6 +516,7 @@
 	drag_grab_touch_down,
 	drag_grab_touch_up,
 	drag_grab_touch_motion,
+	drag_grab_touch_frame,
 	drag_grab_touch_cancel
 };