Bug 1485160 - part1 : Add AudibleAutoplayChild actor. r=mconley

The AudibleAutoplayMediaOccurredObserver which I added in bug1476701 was incorrectly removed by bug1472491, it's used to notify audible autoplay event for the shield study and we should add it back.

Differential Revision: https://phabricator.services.mozilla.com/D3930

--HG--
extra : moz-landing-system : lando

toolkit/actors/AudibleAutoplayChild.jsm

@@ -0,0 +1,15 @@
+/* vim: set ts=2 sw=2 sts=2 et tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+var EXPORTED_SYMBOLS = ["AudibleAutoplayChild"];
+
+ChromeUtils.import("resource://gre/modules/ActorChild.jsm");
+
+class AudibleAutoplayChild extends ActorChild {
+  handleEvent(event) {
+    this.mm.sendAsyncMessage("AudibleAutoplayMediaOccurred");
+  }
+}

toolkit/actors/moz.build

@@ -11,6 +11,7 @@ with Files('Finder*.jsm'):
     BUG_COMPONENT = ('Toolkit', 'Find Toolbar')
 
 FINAL_TARGET_FILES.actors += [
+    'AudibleAutoplayChild.jsm',
     'AudioPlaybackChild.jsm',
     'BrowserChild.jsm',
     'ControllersChild.jsm',

toolkit/modules/ActorManagerParent.jsm

@@ -100,6 +100,15 @@ ChromeUtils.import("resource://gre/modules/Services.jsm");
 const {DefaultMap} = ExtensionUtils;
 
 let ACTORS = {
+  AudibleAutoplay: {
+    child: {
+      module: "resource://gre/actors/AudibleAutoplayChild.jsm",
+      events: {
+        "AudibleAutoplayMediaOccurred": {},
+      },
+    },
+  },
+
   AudioPlayback: {
     child: {
       module: "resource://gre/actors/AudioPlaybackChild.jsm",