Bug 1484496: Follow-up: Fix more busted JS enumerators. r=bustage CLOSED TREE

--HG--
extra : amend_source : b6753494cab68add325af09442239e72ea0c4501

mobile/android/components/FilePicker.js

@@ -253,6 +253,9 @@ FilePicker.prototype = {
       QueryInterface: ChromeUtils.generateQI([Ci.nsISimpleEnumerator]),
       mFiles: files,
       mIndex: 0,
+      [Symbol.iterator]() {
+        return this.mFiles.values();
+      },
       hasMoreElements: function() {
         return (this.mIndex < this.mFiles.length);
       },

mobile/android/components/geckoview/GeckoViewPrompt.js

@@ -873,6 +873,14 @@ FilePickerDelegate.prototype = {
       QueryInterface: ChromeUtils.generateQI([Ci.nsISimpleEnumerator]),
       _owner: this,
       _index: 0,
+      * [Symbol.iterator]() {
+        for (let file of this._owner._files) {
+          if (aDOMFile) {
+            yield this._owner._getDOMFile(file);
+          }
+          yield new FileUtils.File(file);
+        }
+      },
       hasMoreElements: function() {
         return this._index < this._owner._files.length;
       },

toolkit/mozapps/update/nsUpdateService.js

@@ -829,6 +829,10 @@ ArrayEnumerator.prototype = {
   _index: 0,
   _contents: [],
 
+  [Symbol.iterator]() {
+    return this._contents.values();
+  },
+
   hasMoreElements: function ArrayEnumerator_hasMoreElements() {
     return this._index < this._contents.length;
   },