[gnome-applets] window-picker: fix -Wincompatible-pointer-types warning

[Alberts Muktupāvels <muktupavels src gnome org>]

commit a95bae254b0999876025660161f28ce7124b1e83
Author: Alberts Muktupāvels <alberts muktupavels gmail com>
Date:   Fri Apr 3 22:00:34 2020 +0300

    window-picker: fix -Wincompatible-pointer-types warning

 gnome-applets/window-picker/task-item.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/gnome-applets/window-picker/task-item.c b/gnome-applets/window-picker/task-item.c
index aeacde419..489f238a0 100644
--- a/gnome-applets/window-picker/task-item.c
+++ b/gnome-applets/window-picker/task-item.c
@@ -218,10 +218,12 @@ static GtkSizeRequestMode
 task_item_get_request_mode (GtkWidget *widget)
 {
   TaskItem *self;
+  GtkOrientation orientation;
 
   self = TASK_ITEM (widget);
+  orientation = gp_applet_get_orientation (GP_APPLET (self->windowPickerApplet));
 
-  if (gp_applet_get_orientation (self->windowPickerApplet) == GTK_ORIENTATION_HORIZONTAL)
+  if (orientation == GTK_ORIENTATION_HORIZONTAL)
     return GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
   else
     return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;