supplimental fix for bug #318168

rtl (right to left) changes for the winstripe theme for tab scrolling

the pinstripe theme is not being fixed as asaf wants to fix the whole theme to be rtl friendly.

r=mconnor

toolkit/themes/winstripe/global/scrollbox.css

@@ -3,13 +3,13 @@
 /*
  * Autorepeatbutton
  */
-.autorepeatbutton-up
+.autorepeatbutton-up, .autorepeatbutton-down[chromedir="rtl"]
   {
     list-style-image      : url("chrome://global/skin/arrow/arrow-lft.gif");
     -moz-image-region     : auto; /* cut off inheritance */
   }
 
-.autorepeatbutton-down
+.autorepeatbutton-down, .autorepeatbutton-up[chromedir="rtl"]
   {
     list-style-image      : url("chrome://global/skin/arrow/arrow-rit.gif");
     -moz-image-region     : auto; /* cut off inheritance */