Issue 5201 - [emscripten] Replace EM_ASM calls by a custom JavaScript library

compiled/filter/ElemHideBase.h

 /*
  * 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
  * 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/>.
  */
 
 #pragma once
 
 #include <cstddef>
 
+#include <emscripten.h>
+
 #include "ActiveFilter.h"
 
 struct ElemHideData
 {
   String::size_type mDomainsEnd;
   String::size_type mSelectorStart;
 
   bool HasDomains() const
   {
     return mDomainsEnd != 0;
@@ skipping 28 matching lines @@
   explicit ElemHideBase(Type type, const String& text, const ElemHideData& data);
   static Type Parse(DependentString& text, ElemHideData& data);
 
   EMSCRIPTEN_KEEPALIVE const DependentString GetSelector() const
   {
     return mData.GetSelector(mText);
   }
 
   EMSCRIPTEN_KEEPALIVE OwnedString GetSelectorDomain() const;
 };