[gtk+] win32 theme: Fix tooltip borders

[Benjamin Otte <otte src gnome org>]

commit 52c4421bd3c798eb65c12a41449bb2bee2ea2f71
Author: Jaime Velasco Juan <jsagarribay gmail com>
Date:   Mon Oct 17 14:33:47 2016 +0100

    win32 theme: Fix tooltip borders
    
    https://bugzilla.gnome.org/show_bug.cgi?id=773221

 gtk/theme/win32/gtk.css |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/gtk/theme/win32/gtk.css b/gtk/theme/win32/gtk.css
index b9384b7..218875e 100644
--- a/gtk/theme/win32/gtk.css
+++ b/gtk/theme/win32/gtk.css
@@ -124,8 +124,8 @@ decoration {
   background-repeat: no-repeat;
 }
 
-/* Unset above settings when the window is a popup menu */
-* window decoration {
+/* Unset above settings when the window is a popup menu or tooltip */
+* window decoration, tooltip decoration {
     all: unset;
 }