screenShield: Chain up Arrow's style_changed vfunc

This makes style changes propagate to our child widget as they
should.

https://bugzilla.gnome.org/show_bug.cgi?id=739178

diff --git a/js/ui/screenShield.js b/js/ui/screenShield.js
index e4ffde5dd375c3102bc73822fc5d4725621c9d6e..c6202feca46901aa644bed38c172156b57f1528c 100644 (file)
--- a/js/ui/screenShield.js
+++ b/js/ui/screenShield.js
@@ -399,6 +399,8 @@ const Arrow = new Lang.Class({
             this._shadowHelper = St.ShadowHelper.new(this._shadow);
         else
             this._shadowHelper = null;
+
+        this.parent();
     },
 
     vfunc_paint: function() {