theme fix-up for hyatt. r=sfraser/sr=hyatt.

themes/classic/global/win/autocomplete.css

@@ -43,7 +43,7 @@ textbox {
 /* ::::: history button ::::: */
 
 .autocomplete-history-dropmarker {
-  -moz-appearance: menulistbutton;
+  -moz-appearance: menulist-button;
   min-width: 17px;
   -moz-box-align: center;
   -moz-box-pack: center;

themes/classic/global/win/menulist.css

@@ -62,7 +62,7 @@ menulist[open="true"]:focus > .menulist-label-box {
 /* ..... dropmarker ..... */
 
 .menulist-dropmarker {
-  -moz-appearance: menulistbutton;
+  -moz-appearance: menulist-button;
   min-width: 17px;
   -moz-box-align: center;
   -moz-box-pack: center;