[gtk/lrn/bug-773299] GDK W32: Don't check dest_surface for != NULL on button events

[LRN <ruslanizhb src gnome org>]

commit b8e6d0637262594ae1f71f5cdadf8a3dcab33f43
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Sat Mar 24 10:26:51 2018 +0000

    GDK W32: Don't check dest_surface for != NULL on button events
    
    dest_surface is going to always be NULL for source contexts.
    Previously we used to put the root window there to pass this check,
    but root windows are gone (and root surfaces never existed to begin
    with), so we have to adapt.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773299

 gdk/win32/gdkdnd-win32.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/gdk/win32/gdkdnd-win32.c b/gdk/win32/gdkdnd-win32.c
index e2d48e3ecf..53e72215d6 100644
--- a/gdk/win32/gdkdnd-win32.c
+++ b/gdk/win32/gdkdnd-win32.c
@@ -3099,8 +3099,7 @@ gdk_dnd_handle_button_event (GdkDragContext       *context,
     return FALSE;
 #endif
 
-  if ((gdk_drag_context_get_selected_action (context) != 0) &&
-      (gdk_drag_context_get_dest_surface (context) != NULL))
+  if ((gdk_drag_context_get_selected_action (context) != 0))
     {
       g_signal_emit_by_name (context, "drop-performed",
                              gdk_event_get_time ((GdkEvent *) event));