[gtk] switch: Shorten size_allocate impl a bit

[Timm Bäder <baedert src gnome org>]

commit eeeefb40c7b84f0afc891898e57ce30ef3ca828a
Author: Timm Bäder <mail baedert org>
Date:   Tue Nov 20 18:11:50 2018 +0100

    switch: Shorten size_allocate impl a bit

 gtk/gtkswitch.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)
---
diff --git a/gtk/gtkswitch.c b/gtk/gtkswitch.c
index f8c235fe69..a1a1bcdc9b 100644
--- a/gtk/gtkswitch.c
+++ b/gtk/gtkswitch.c
@@ -324,16 +324,13 @@ gtk_switch_size_allocate (GtkWidget *widget,
   GtkSwitch *self = GTK_SWITCH (widget);
   GtkSwitchPrivate *priv = gtk_switch_get_instance_private (self);
   GtkAllocation child_alloc;
-  GtkAllocation slider_alloc;
   int min;
 
-  slider_alloc.x = round (priv->handle_pos * (width / 2));
-  slider_alloc.y = 0;
-  slider_alloc.width = width / 2;
-  slider_alloc.height = height;
-
-  gtk_widget_size_allocate (priv->slider, &slider_alloc, -1);
-
+  gtk_widget_size_allocate (priv->slider,
+                            &(GtkAllocation) {
+                              round (priv->handle_pos * (width / 2)), 0,
+                              width / 2, height
+                            }, -1);
 
   /* Center ON label in left half */
   gtk_widget_measure (priv->on_label, GTK_ORIENTATION_HORIZONTAL, -1, &min, NULL, NULL, NULL);