Noissue - Fix the escaping of '{' and '}' in CSS selectors

test/browser/elemHideEmulation.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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 203 matching lines @@
   ).then(() =>
   {
     expectHidden(test, toHide);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };
 
 exports.testPropertySelectorWithEscapedBrace = function(test)
 {
   let toHide = createElementWithStyle("{background-color: #000}");
   applyElemHideEmulation(
-    [":-abp-properties(/background.\\x7B 0,6\\x7D : rgb\\(0, 0, 0\\)/)"]
+    [":-abp-properties(/background.\\7B 0,6\\7D : rgb\\(0, 0, 0\\)/)"]
   ).then(() =>
   {
     expectHidden(test, toHide);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };
 
 exports.testPropertySelectorWithImproperlyEscapedBrace = function(test)
 {
   let toHide = createElementWithStyle("{background-color: #000}");
   applyElemHideEmulation(
-    [":-abp-properties(/background.\\x7B0,6\\x7D: rgb\\(0, 0, 0\\)/)"]
+    [":-abp-properties(/background.\\7B0,6\\7D: rgb\\(0, 0, 0\\)/)"]
   ).then(() =>
   {
     expectVisible(test, toHide);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };
 
 exports.testDynamicallyChangedProperty = function(test)
 {
   let toHide = createElementWithStyle("{}");
   applyElemHideEmulation(
@@ skipping 334 matching lines @@
     expectVisible(test, child2);
     return timeout(REFRESH_INTERVAL);
   }).then(() =>
   {
     expectHidden(test, parent);
     expectVisible(test, child);
     expectHidden(test, sibling);
     expectVisible(test, child2);
   }).catch(unexpectedError.bind(test)).then(() => test.done());
 };