[gtk+] Add some theming for csd popups

[Matthias Clasen <matthiasc src gnome org>]

commit fbc6a0c400462e00675388a227a24f21444e27eb
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 6 18:00:57 2014 -0400

    Add some theming for csd popups
    
    Not attempt to make this look good, just to demonstrate
    that themes can in fact do it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731187

 gtk/resources/theme/gtk-default.css |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/gtk/resources/theme/gtk-default.css b/gtk/resources/theme/gtk-default.css
index 1c4a9e3..e27ba41 100644
--- a/gtk/resources/theme/gtk-default.css
+++ b/gtk/resources/theme/gtk-default.css
@@ -850,6 +850,24 @@ GtkCalendar.button:hover {
   margin: 10px;
 }
 
+.window-frame.tooltip.csd {
+  border-radius: 1px 1px 0 0;
+  box-shadow: none;
+  margin: 0px;
+}
+
+.window-frame.popup.csd {
+  border-radius: 1px 1px 0 0;
+  box-shadow: 0 1px 1px 1px alpha(black, 0.5);
+  margin: 0px;
+}
+
+.window-frame.popup {
+  border-color: darker (@bg_color);
+  border-width: 1px;
+  border-style: solid;
+}
+
 .window-frame.tiled {
   border-radius: 0;
   background-color: @bg_color;