#1637: doh

* performance.now() value is already in milliseconds!
* fix Date.now fallback (was an invalid call)

git-svn-id: https://xpra.org/svn/Xpra/trunk@17194 3bb7dfac-3a0b-4e04-842a-767bc560f471

src/html5/js/Utilities.js

@@ -340,9 +340,9 @@ var Utilities = {
 
 	monotonicTime : function() {
 		if (performance) {
-			return Math.round(performance.now()*1000.0);
+			return Math.round(performance.now());
 		}
-		return Date().now();
+		return Date.now();
 	},
 
 	StringToUint8 : function(str) {