Backed out changeset ede5862f0950 (bug 1361855)

browser/modules/test/browser/browser_UsageTelemetry.js

@@ -347,8 +347,8 @@ add_task(async function test_tabsHistogram() {
   }
 
   // Remove all the extra windows and tabs.
-  for (let openedTab of openedTabs) {
-    await BrowserTestUtils.removeTab(openedTab);
+  for (let tab of openedTabs) {
+    await BrowserTestUtils.removeTab(tab);
   }
   await BrowserTestUtils.closeWindow(win);
 });