Fix menu icon bustage.

browser/base/skin/browser.css

@@ -107,6 +107,11 @@ menuitem.bookmark-item {
   margin-top: -1px;
 }
 
+.bookmark-item > .menu-iconic-left > .menu-iconic-icon {
+  width: 16px;
+  height: 16px;
+}
+
 /* ..... drag and drop styles ..... */
 
 .bookmark-item[dragover-left="true"] {

toolkit/skin/win/menu.css

@@ -69,12 +69,8 @@ menuitem[_moz-menuactive="true"][disabled="true"] {
   color: inherit;
 }
 
-.menu-iconic-icon {
-  width: 9px;
-  height: 9px;
-  margin-left: 3.5px;
-  margin-right: 3.5px;
-  list-style-image: inherit;
+.menu-iconic-left {
+  width: 16px;
 }
 
 /* ..... menu arrow box ..... */