Issue 4580 - Replace ext.devtools with devtools

background.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 61 matching lines @@
     filterlistsReinitialized: false,
     addSubscription: false,
     filterError: false,
     downloadStatus: "synchronize_ok",
     showNotificationUI: false,
     showPageOptions: false
   };
   updateFromURL(params);
 
   let modules = {};
-  window.require = function(module)
-  {
-    return modules[module];
-  };
+
+  const require = window.require = module => modules[module];
 
   modules.utils = {
     Utils: {
       getDocLink(link)
       {
         return "https://adblockplus.org/redirect?link=" + encodeURIComponent(link);
       },
       get appLocale()
       {
         return chrome.i18n.getUILanguage();
@@ skipping 438 matching lines @@
             {
               host,
               whitelisted: isWhitelisted
             }
           ]
         }
       }, "*");
     }, 1000);
   }
 
-  ext.devtools.onCreated.addListener((panel) =>
+  let {port} = require("messaging");
+
+  port.on("devtools.ready", (message, sender) =>
   {
+    let panel = sender.page;
+
     // blocked request
     panel.sendMessage({
       type: "add-record",
       request: {
         url: "http://adserver.example.com/ad_banner.png",
         type: "IMAGE",
         docDomain: "example.com"
       },
       filter: {
         text: "/ad_banner*$domain=example.com",
@@ skipping 55 matching lines @@
       },
       filter: {
         text: "||example.com/some-annoying-popup$popup",
         whitelisted: false,
         userDefined: true,
         subscription: null
       }
     });
   });
 }());