Bug 1449170 - Remove old-event-emitter usage from responsive.html; r=jryans.

MozReview-Commit-ID: KREEQYpIVh6

--HG--
extra : rebase_source : 88e5a77db7e8aba6a9f237657c989e9747c4ae41

devtools/client/responsive.html/manager.js

@@ -7,7 +7,7 @@
 const { Ci } = require("chrome");
 const promise = require("promise");
 const Services = require("Services");
-const EventEmitter = require("devtools/shared/old-event-emitter");
+const EventEmitter = require("devtools/shared/event-emitter");
 
 const TOOL_URL = "chrome://devtools/content/responsive.html/index.xhtml";
 

devtools/client/responsive.html/test/browser/head.js

@@ -148,7 +148,7 @@ function waitForViewportResizeTo(ui, width, height) {
     // hang forever. See bug 1302879.
     let browser = ui.getViewportBrowser();
 
-    let onResize = (_, data) => {
+    let onResize = data => {
       if (!isSizeMatching(data)) {
         return;
       }

devtools/client/styleeditor/test/browser_styleeditor_media_sidebar_links.js

@@ -101,7 +101,7 @@ function doFinalChecks(editor) {
 /* Helpers */
 function waitForResizeTo(rdmUI, type, value) {
   return new Promise(resolve => {
-    let onResize = (_, data) => {
+    let onResize = data => {
       if (data[type] != value) {
         return;
       }