Rename some stuff

Libraries/Utilities/DevSettings.js

@@ -1,28 +1,28 @@
 import NativeDevSettings from '../NativeModules/specs/NativeDevSettings';
-import EventEmitter from '../EventEmitter/NativeEventEmitter';
+import NativeEventEmitter from '../EventEmitter/NativeEventEmitter';
 
-class DevSettings extends EventEmitter {
-  _items: Map<string, () => mixed>;
+class DevSettings extends NativeEventEmitter {
+  _menuItems: Map<string, () => mixed>;
 
   constructor() {
     super(NativeDevSettings);
 
-    this._items = new Map();
+    this._menuItems = new Map();
   }
 
   addMenuItem(title: string, handler: () => mixed) {
     // Make sure items are not added multiple times. This can
     // happen when hot reloading the module that registers the
     // menu items. The title is used as the id which means we
     // don't support multiple items with the same name.
-    const oldHandler = this._items.get(title);
+    const oldHandler = this._menuItems.get(title);
     if (oldHandler != null) {
       this.removeListener('didPressMenuItem', oldHandler);
     } else {
       NativeDevSettings.addMenuItem(title);
     }
 
-    this._items.set(title, handler);
+    this._menuItems.set(title, handler);
     this.addListener('didPressMenuItem', (event) => {
       if (event.title === title) {
         handler();