[adblockplus] Issue 4915 - Expose ext.i18n for background pages

ext/content.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 61 matching lines @@
         senderID: getOuterWindowID(),
         payload
       };
       if (typeof responseCallback == "function")
         port.emitWithResponse("ext_message", message).then(responseCallback);
       else
         port.emit("ext_message", message);
     }
   };
 
-  /* i18n */
-  global.ext.i18n = (function()
-  {
-    var pageName = location.pathname.replace(/.*\//, "").replace(/\..*?$/, "");
-
-    // Randomize URI to work around bug 719376
-    var stringBundle = Services.strings.createBundle("chrome://adblockplus/locale/" + pageName +
-      ".properties?" + Math.random());
-
-    function getI18nMessage(key)
-    {
-      return {
-        "message": stringBundle.GetStringFromName(key)
-      };
-    }
-
-    function getText(message, args)
-    {
-      var text = message.message;
-      var placeholders = message.placeholders;
-
-      if (!args || !placeholders)
-        return text;
-
-      for (var key in placeholders)
-      {
-        var content = placeholders[key].content;
-        if (!content)
-          continue;
-
-        var index = parseInt(content.slice(1), 10);
-        if (isNaN(index))
-          continue;
-
-        var replacement = args[index - 1];
-        if (typeof replacement === "undefined")
-          continue;
-
-        text = text.split("$" + key + "$").join(replacement);
-      }
-      return text;
-    }
-
-    return {
-      getMessage: function(key, args)
-      {
-        try{
-          var message = getI18nMessage(key);
-          return getText(message, args);
-        }
-        catch(e)
-        {
-          // Don't report errors for special strings, these are expected to be
-          // missing.
-          if (key[0] != "@")
-            Cu.reportError(e);
-          return "";
-        }
-      }
-    };
-  })();
 })(this);