Bug 678326 - Notification bar overlaps window chrome during fade in/out. r=enn

--HG--
extra : rebase_source : 98a102a7f00231dc1a11435c51d917b425d25369

toolkit/content/widgets/notification.xml

@@ -12,7 +12,8 @@
 
   <binding id="notificationbox">
     <content>
-      <xul:stack xbl:inherits="hidden=notificationshidden">
+      <xul:stack xbl:inherits="hidden=notificationshidden"
+                 class="notificationbox-stack">
         <xul:spacer/>
         <children includes="notification"/>
       </xul:stack>

toolkit/content/xul.css

@@ -191,6 +191,10 @@ notificationbox {
   -moz-box-orient: vertical;
 }
 
+.notificationbox-stack {
+  overflow: -moz-hidden-unscrollable;
+}
+
 notification {
   -moz-binding: url("chrome://global/content/bindings/notification.xml#notification");
   -moz-transition: margin-top 300ms, opacity 300ms;