[gtk+] wayland: Allow 0-size writes in selection/dnd

[Carlos Garnacho <carlosg src gnome org>]

commit f61965233bdd4eb725e8508849517f7865a92d5c
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Mar 9 17:28:29 2016 +0100

    wayland: Allow 0-size writes in selection/dnd
    
    It's not something we should be forbidding explicitly, definitely
    no-op is not the best option.

 gdk/wayland/gdkselection-wayland.c |    3 +--
 1 files changed, 1 insertions(+), 2 deletions(-)
---
diff --git a/gdk/wayland/gdkselection-wayland.c b/gdk/wayland/gdkselection-wayland.c
index 8a9d1ee..e1dd69b 100644
--- a/gdk/wayland/gdkselection-wayland.c
+++ b/gdk/wayland/gdkselection-wayland.c
@@ -667,8 +667,7 @@ gdk_wayland_selection_check_write (GdkWaylandSelection *selection)
 {
   AsyncWriteData *write_data;
 
-  if (selection->stored_selection.fd < 0 ||
-      selection->stored_selection.data_len == 0)
+  if (selection->stored_selection.fd < 0)
     return FALSE;
 
   /* Cancel any previous ongoing async write */