Issue 1671 - Removed "Hide placeholders" option from the UI (Chrome/Opera/Safari)

background.js

 /*
  * This file is part of Adblock Plus <http://adblockplus.org/>,
  * Copyright (C) 2006-2014 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 63 matching lines @@
     if (prevVersion != addonVersion || FilterStorage.firstRun)
     {
       seenDataCorruption = prevVersion && FilterStorage.firstRun;
       ext.storage.currentVersion = addonVersion;
       addSubscription(prevVersion);
     }
 
     if (canUseChromeNotifications)
       initChromeNotifications();
     initAntiAdblockNotification();
+
+    // The "Hide placeholders" option has been removed from the UI in 1.8.8.1283
+    // So we reset the option for users updating from older versions.
+    if (prevVersion && Services.vc.compare(prevVersion, "1.8.8.1283") < 0)
+      Prefs.hidePlaceholders = true;
   }
 
   // update browser actions when whitelisting might have changed,
   // due to loading filters or saving filter changes
   if (action == "load" || action == "save")
     refreshIconAndContextMenuForAllPages();
 });
 
 // Special-case domains for which we cannot use style-based hiding rules.
 // See http://crbug.com/68705.
@@ skipping 480 matching lines @@
   page.sendMessage({type: "clickhide-deactivate"});
   refreshIconAndContextMenu(page);
 });
 
 setTimeout(function()
 {
   var notificationToShow = Notification.getNextToShow();
   if (notificationToShow)
     showNotification(notificationToShow);
 }, 3 * 60 * 1000);