Bug 1273941 - replace uses of promise.defer in devtools/client/framework; r=jryans

MozReview-Commit-ID: GwgbcXOmvtK

devtools/client/framework/attach-thread.js

@@ -6,7 +6,7 @@
 
 const {Cc, Ci, Cu} = require("chrome");
 const Services = require("Services");
-const promise = require("promise");
+const defer = require("devtools/shared/defer");
 
 function l10n(name) {
   const bundle = Services.strings.createBundle("chrome://devtools/locale/toolbox.properties");
@@ -42,7 +42,7 @@ function handleThreadState(toolbox, event, packet) {
 }
 
 function attachThread(toolbox) {
-  let deferred = promise.defer();
+  let deferred = defer();
 
   let target = toolbox.target;
   let { form: { chromeDebugger, actor } } = target;