[polari] chatView: Add missing chain-up in style_updated

[Florian Müllner <fmuellner src gnome org>]

commit 1b577c0de8a9df5d2990892f8d3bb867f509dad0
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Sep 10 17:23:46 2014 +0200

    chatView: Add missing chain-up in style_updated
    
    GtkWidget's default implementation takes care of queuing a draw/resize
    as necessary, so we need to chain-up for the style to actually take
    effect.

 src/chatView.js |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/chatView.js b/src/chatView.js
index c06a47e..2d8a082 100644
--- a/src/chatView.js
+++ b/src/chatView.js
@@ -47,6 +47,8 @@ const TextView = new Lang.Class({
         context.add_class('dim-label');
         this._dimColor = context.get_color(Gtk.StateFlags.NORMAL);
         context.restore();
+
+        this.parent();
     },
 
     vfunc_draw: function(cr) {