Fix polyfills.

chrome_polyfills.js

@@ -1,6 +1,6 @@
 'use strict';
 
-if (navigator && !navigator.mozContacts) {
+if (config.midletClassName !== "RunTests" && navigator && !navigator.mozContacts) {
   navigator.mozContacts = {
     getAll: function () {
       var req = {};

index.js

@@ -14,7 +14,7 @@
                          loadScript("tests/index.js"));
   }
 
-  if (navigator.userAgent.indexOf('Chrome')) {
+  if (navigator.userAgent.indexOf('Chrome') > -1) {
     loadingPromises.push(loadScript("chrome_polyfills.js"));
   }