[gnome-shell] popup-sub-menu: Adjust scrollbar style

[Owen Taylor <otaylor src gnome org>]

commit d25418ba0469eedcd1b0cc48142104aab6817675
Author: Florian Müllner <fmuellner gnome org>
Date:   Mon Apr 4 14:55:15 2011 +0200

    popup-sub-menu: Adjust scrollbar style
    
    Slightly adjust the style, so that scrollbars in submenus look
    slightly less disconnected from the scrolled content.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=646001

 data/theme/gnome-shell.css |   21 +++++++++++++++++++++
 js/ui/popupMenu.js         |    5 +++--
 2 files changed, 24 insertions(+), 2 deletions(-)
---
diff --git a/data/theme/gnome-shell.css b/data/theme/gnome-shell.css
index d540340..ae7f59b 100644
--- a/data/theme/gnome-shell.css
+++ b/data/theme/gnome-shell.css
@@ -113,6 +113,27 @@ StTooltip StLabel {
     box-shadow: inset 0px 2px 4px rgba(0,0,0,0.9);
 }
 
+.popup-sub-menu .popup-menu-item:ltr {
+    padding-right: 0em;
+}
+
+.popup-sub-menu .popup-menu-item:rtl {
+    padding-left: 0em;
+}
+
+.popup-sub-menu StScrollBar {
+    padding: 4px;
+}
+
+.popup-sub-menu StScrollBar StBin#trough {
+    border-width: 0px;
+}
+
+.popup-sub-menu StScrollBar StBin#vhandle {
+    background-color: #4c4c4c;
+    border-width: 0px;
+}
+
 /* The remaining popup-menu sizing is all done in ems, so that if you
  * override .popup-menu.font-size, everything else will scale with it.
  */
diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 2bc388f..8f76ed6 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -1042,7 +1042,7 @@ PopupSubMenu.prototype = {
     __proto__: PopupMenuBase.prototype,
 
     _init: function(sourceActor, sourceArrow) {
-        PopupMenuBase.prototype._init.call(this, sourceActor, 'popup-sub-menu');
+        PopupMenuBase.prototype._init.call(this, sourceActor);
 
         this._arrow = sourceArrow;
         this._arrow.rotation_center_z_gravity = Clutter.Gravity.CENTER;
@@ -1050,7 +1050,8 @@ PopupSubMenu.prototype = {
         // Since a function of a submenu might be to provide a "More.." expander
         // with long content, we make it scrollable - the scrollbar will only take
         // effect if a CSS max-height is set on the top menu.
-        this.actor = new St.ScrollView({ hscrollbar_policy: Gtk.PolicyType.NEVER,
+        this.actor = new St.ScrollView({ style_class: 'popup-sub-menu',
+                                         hscrollbar_policy: Gtk.PolicyType.NEVER,
                                          vscrollbar_policy: Gtk.PolicyType.NEVER });
 
         // StScrollbar plays dirty tricks with events, calling