[gnome-boxes] gtk-style: Use new CSS property names

[Zeeshan Ali <zeeshanak src gnome org>]

commit 9ca7cef5ffd5f66cb2ce6c39b6dd5e4cb4e29cfc
Author: Zeeshan Ali <zeenix gmail com>
Date:   Thu Oct 6 16:15:42 2016 +0200

    gtk-style: Use new CSS property names
    
    outline-radius -> -gtk-outline-radius

 data/gtk-style.css |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/data/gtk-style.css b/data/gtk-style.css
index 95e53bc..ed6b539 100644
--- a/data/gtk-style.css
+++ b/data/gtk-style.css
@@ -78,7 +78,7 @@
 /* Corner rounding */
 .boxes-menu >.boxes-menu-row:nth-last-child(2) {
     border-radius: 0 0 15px 15px;
-    outline-radius: 0 0 13px 13px;
+    -gtk-outline-radius: 0 0 13px 13px;
 }
 
 .boxes-menu > .boxes-menu-row:last-child {
@@ -89,7 +89,7 @@
 .boxes-menu-row.button:first-child {
     border-radius: 15px 15px 0 0;
     border-top-style: none;
-    outline-radius: 13px 13px 0 0;
+    -gtk-outline-radius: 13px 13px 0 0;
 }
 
 /* Row styling */