Issue 4864 - Start using ESLint for adblockpluschrome

chrome/ext/common.js

Index: chrome/ext/common.js
diff --git a/chrome/ext/common.js b/chrome/ext/common.js
index 011be377721d23d33f09b4b899dca7f0a0ec25ff..11ec937025432862900b3c4e1b90ffe6c1424115 100644
--- a/chrome/ext/common.js
+++ b/chrome/ext/common.js
@@ -17,14 +17,16 @@
 
 "use strict";
 
+(function()
 {
   // Workaround since HTMLCollection and NodeList didn't have iterator support
   // before Chrome 51.
   // https://bugs.chromium.org/p/chromium/issues/detail?id=401699
+  let arrayIterator = Array.prototype[Symbol.iterator];
   if (!(Symbol.iterator in HTMLCollection.prototype))
-    HTMLCollection.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];
+    HTMLCollection.prototype[Symbol.iterator] = arrayIterator;
   if (!(Symbol.iterator in NodeList.prototype))
-    NodeList.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];
+    NodeList.prototype[Symbol.iterator] = arrayIterator;
 
   /* Message passing */
 
@@ -46,4 +48,4 @@
 
   ext.getURL = chrome.extension.getURL;
   ext.i18n = chrome.i18n;
-}
+}());