Bug 633656 - When split menus are hovered, both the main item and expansion arrow should display on mouse in [r=dao, a=gavin]

browser/base/content/urlbarBindings.xml

@@ -1079,7 +1079,7 @@
                 class="splitmenu-menuitem"
                 xbl:inherits="iconic,label,disabled,onclick=oncommand,_moz-menuactive=active"/>
       <xul:menu anonid="menu" class="splitmenu-menu"
-                xbl:inherits="disabled"
+                xbl:inherits="disabled,_moz-menuactive=active"
                 oncommand="event.stopPropagation();">
         <children includes="menupopup"/>
       </xul:menu>

browser/themes/gnomestripe/browser/browser.css

@@ -1722,7 +1722,11 @@ toolbar[mode="text"] toolbarbutton.chevron > .toolbarbutton-icon {
   -moz-transform: translate(0, 2px);
 }
 
-/* Application menu toolbar button */
+/* Application button menu */
+
+.splitmenu-menuitem {
+  -moz-margin-end: 1px;
+}
 
 #appmenu-toolbar-button > .toolbarbutton-text,
 #appmenu-toolbar-button > .toolbarbutton-menu-dropmarker {

browser/themes/winstripe/browser/browser.css

@@ -227,6 +227,10 @@
   -moz-margin-start: .5em;
 }
 
+.splitmenu-menuitem {
+  -moz-margin-end: 1px;
+}
+
 .splitmenu-menu {
   -moz-box-pack: end;
 }