Issue 3014 - Export and use icon.basePath variable

lib/icon.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /** @module icon */
 
 const numberOfFrames = 10;
 
 let whitelistedState = new ext.PageMap();
 let notificationType = null;
 let animationInterval = null;
 let animationStep = 0;
 
+exports.basePath = "icons/abp-$size";
+
 function getIconPath(whitelisted)
 {
-  let filename = "icons/abp-$size";
+  let filename = exports.basePath;
 
   // If the current page is whitelisted, pick an icon that indicates that
   // Adblock Plus is disabled, however not when the notification icon has
   // full opacity, or on Safari where icons are genrally grayscale-only.
   if (whitelisted && animationStep < numberOfFrames && require("info").platform != "safari")
     filename += "-whitelisted";
 
   // If the icon is currently animating to indicate a pending notification,
   // pick the icon for the corresponing notification type and animation frame.
   if (notificationType && animationStep > 0)
@@ skipping 78 matching lines @@
 exports.stopIconAnimation = function()
 {
   if (animationInterval != null)
   {
     clearInterval(animationInterval);
     animationInterval = null;
   }
 
   notificationType  = null;
 };