Issue 4944 - Make creation of FilterEngine asynchronous.

test/Prefs.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 67 matching lines @@
       Reset();
     }
 
     void Reset(const AdblockPlus::FilterEngine::Prefs& preconfiguredPrefs =
                AdblockPlus::FilterEngine::Prefs())
     {
       jsEngine = CreateJsEngine();
       jsEngine->SetLogSystem(AdblockPlus::LogSystemPtr(new LazyLogSystem));
       jsEngine->SetFileSystem(fileSystemPtr);
       jsEngine->SetWebRequest(AdblockPlus::WebRequestPtr(new LazyWebRequest));
-
-      filterEngine.reset(
-        new AdblockPlus::FilterEngine(jsEngine, preconfiguredPrefs));
+      AdblockPlus::FilterEngine::CreationParameters createParams;
+      createParams.preconfiguredPrefs = preconfiguredPrefs;
+      filterEngine = AdblockPlus::FilterEngine::Create(jsEngine, createParams);
     }
   };
 }
 
 TEST_F(PrefsTest, PrefsGetSet)
 {
   ASSERT_EQ("patterns.ini", filterEngine->GetPref("patternsfile")->AsString());
   ASSERT_EQ(24, filterEngine->GetPref("patternsbackupinterval")->AsInt());
   ASSERT_TRUE(filterEngine->GetPref("subscriptions_autoupdate")->AsBool());
   ASSERT_TRUE(filterEngine->GetPref("foobar")->IsUndefined());
@@ skipping 94 matching lines @@
 
   AdblockPlus::Sleep(100);
 
   ASSERT_FALSE(fileSystem->prefsContents.empty());
 
   Reset(preconfiguredPrefs);
 
   ASSERT_TRUE(filterEngine->GetPref("suppress_first_run_page")->IsBool());
   ASSERT_FALSE(filterEngine->GetPref("suppress_first_run_page")->AsBool());
 }