Issue 5050 - Make legacy extension use WebExtensions I/O

chrome/content/ui/utils.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 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 21 matching lines @@
   Services.obs.notifyObservers(result, "adblockplus-require", module);
   return result.exports;
 }
 
 var {Policy} = require("contentPolicy");
 var {Filter, InvalidFilter, CommentFilter, ActiveFilter, RegExpFilter,
      BlockingFilter, WhitelistFilter, ElemHideBase, ElemHideFilter,
      ElemHideException, ElemHideEmulationFilter} = require("filterClasses");
 var {FilterNotifier} = require("filterNotifier");
 var {FilterStorage} = require("filterStorage");
-var {IO} = require("io");
+var {IO} = require("legacyIO");

[Wladimir Palant, 2017/04/10 11:35:16]

The only real IO usage in UI is custom backups, these should still use the real
file system. The remaining users merely need UI.lineBreak - something that the
legacy IO exposes but that doesn't make much sense any more.

 var {defaultMatcher, Matcher, CombinedMatcher} = require("matcher");
 var {Prefs} = require("prefs");
 var {RequestNotifier} = require("requestNotifier");
 var {Subscription, SpecialSubscription, RegularSubscription,
      ExternalSubscription, DownloadableSubscription} = require("subscriptionClasses");
 var {Synchronizer} = require("synchronizer");
 var {UI} = require("ui");
 var {Utils} = require("utils");
 
 /**
@@ skipping 24 matching lines @@
 }
 
 /**
  * Split up all labels into the label and access key portions.
  */
 document.addEventListener("DOMContentLoaded", function splitAllLabelsHandler()
 {
   document.removeEventListener("DOMContentLoaded", splitAllLabelsHandler, false);
   Utils.splitAllLabels(document);
 }, false);