Bug 385700 - [Pinstripe] Fix top borders on autocomplete popups. r=Mano.

toolkit/themes/pinstripe/global/autocomplete.css

@@ -80,12 +80,10 @@ panel[type="autocomplete"],
   background-color: -moz-Field !important;
   font: icon;
   -moz-appearance: none;
-  border-top: 1px solid #C3C3C3 !important;
 }
 
 .autocomplete-history-popup {
   max-height: 180px;
-  border-top: 1px solid #C3C3C3 !important;
 }
 
 /* ::::: tree ::::: */
@@ -107,6 +105,10 @@ panel[type="autocomplete"],
   padding-left: 2px;
 }
 
+.autocomplete-treebody::-moz-tree-row {
+  border-top: none;
+}
+
 treechildren.autocomplete-treebody::-moz-tree-row(selected) {
  background-color: Highlight;
 }