Bug 1065185 - Create a content Array rather than a chrome array when reading Icc contacts. r=hsinyi

Right now, this array gets implicit __exposedProps__ for all of its indexed
members (and .length). Instead, we should be creating the Array directly in
the target Window.

dom/system/gonk/RILContentHelper.js

@@ -799,7 +799,8 @@ RILContentHelper.prototype = {
     let window = this._windowsMap[message.requestId];
     delete this._windowsMap[message.requestId];
     let contacts = message.contacts;
-    let result = contacts.map(function(c) {
+    let result = new window.Array();
+    contacts.forEach(function(c) {
       let prop = {name: [c.alphaId], tel: [{value: c.number}]};
 
       if (c.email) {
@@ -814,7 +815,7 @@ RILContentHelper.prototype = {
 
       let contact = new window.mozContact(prop);
       contact.id = c.contactId;
-      return contact;
+      result.push(contact);
     });
 
     this.fireRequestSuccess(message.requestId, result);