Bug 463695 - Make determined progressmeters on OS X animate. r=dao

--HG--
extra : rebase_source : db5a74b689a16e177a784fecbcb72fd93f70ee8a

toolkit/themes/pinstripe/global/global.css

@@ -53,7 +53,7 @@ menulist > menupopup,
   -moz-binding: url("chrome://global/content/bindings/menulist.xml#menulist-compact");
 }
 
-progressmeter[mode="undetermined"] {
+progressmeter {
   -moz-binding: url("chrome://global/content/bindings/progressmeter.xml#progressmeter-periodic-redraw");
 }