Issue 5450 - don't expose std::shared_ptr<FilterEngine>

test/BaseJsTest.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
@@ skipping 201 matching lines @@
   }
 
   std::string Resolve(const std::string& path) const override
   {
     return path;
   }
 public:
   Scheduler scheduler;
 };
 
-AdblockPlus::FilterEnginePtr CreateFilterEngine(LazyFileSystem& fileSystem,
+AdblockPlus::FilterEngine& CreateFilterEngine(LazyFileSystem& fileSystem,
   AdblockPlus::Platform& platform,
   const AdblockPlus::FilterEngine::CreationParameters& creationParams = AdblockPlus::FilterEngine::CreationParameters());
 
 class NoopWebRequest : public AdblockPlus::IWebRequest
 {
 public:
   void GET(const std::string& url, const AdblockPlus::HeaderList& requestHeaders, const GetCallback& callback) override
   {
   }
 };
@@ skipping 47 matching lines @@
   }
 
   void TearDown() override
   {
     if (platform)
       platform.reset();
   }
 };
 
 #endif