Issue 3853 - Use new messaging API for the first-run page

lib/child/cssProperties.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 11 matching lines @@
   let {Services} = Cu.import("resource://gre/modules/Services.jsm", {});
 
   let {port} = require("messaging");
   let {getFrames} = require("child/utils");
 
   let senderWindow = null;
 
   let scope = {
     ext: {
       backgroundPage: {
-        sendMessage: function(data, callback)
+        sendMessage: function(payload, callback)
         {
-          data = {payload: data, frames: getFrames(senderWindow)};
+          let message = {payload, frames: getFrames(senderWindow)};
           if (typeof callback == "function")
-            port.emitWithResponse("cssPropertiesRequest", data).then(callback);
+            port.emitWithResponse("ext_message", message).then(callback);
           else
-            port.emit("cssPropertiesRequest", data);
+            port.emit("ext_message", message);
         }
       }
     }
   };
 
   function loadScript(script)
   {
     Services.scriptloader.loadSubScript(script, scope);
   }
 
@@ skipping 43 matching lines @@
         false);
     onShutdown.add(() =>
     {
       Services.obs.removeObserver(onContentWindow,
           "content-document-global-created");
     });
   }
 
   initCSSPropertyFilters();
 })();