Fix drag-and-drop treatment of reused tooltip frames

* src/androidfns.c (Fx_show_tip): Set `tip_window' to that of
any reused tooltip frame.

* src/haikufns.c (unwind_create_frame): Return whether the frame
was destroyed, as on X.
(unwind_create_tip_frame, haiku_create_frame, Fx_show_tip):
Synchronize with X.
(do_unwind_create_frame): New function.
(tip_window): Remove unused variable.

* src/nsfns.m (tip_window, unwind_create_tip_frame): Remove
unused variable `tip_window'.

* src/pgtkfns.c (pgtk_create_tip_frame): Rename to
pgtk_create_tip_frame.
(Fx_show_tip): Adjust accordingly.  Set `tip_window' to that of
any reused tooltip frame.

* src/w32fns.c (Fx_show_tip):

* src/xfns.c (Fx_show_tip): Set `tip_window' to that of any
reused tooltip frame.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/androidfns.c b/src/androidfns.c
index f8e3d397008..ec8651aafcb 100644
--- a/src/androidfns.c
+++ b/src/androidfns.c
@@ -2449,6 +2449,8 @@ DEFUN ("x-show-tip", Fx_show_tip, Sx_show_tip, 1, 6, 0,
         /* Creating the tip frame failed.  */
         return unbind_to (count, Qnil);
     }
+  else
+    tip_window = FRAME_ANDROID_WINDOW (XFRAME (tip_frame));
 
   tip_f = XFRAME (tip_frame);
   window = FRAME_ROOT_WINDOW (tip_f);