Issue #4711 - Rewrite legacy thread facilities

test/FilterEngine.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 504 matching lines @@
     \"version\": \"1.0.2\",\
     \"url\": \"https://downloads.adblockplus.org/test-1.0.2.tar.gz?update\"\
   }\
 }";
 
   int timesCalled = 0;
   MockUpdateAvailableCallback mockUpdateAvailableCallback(timesCalled);
 
   filterEngine->SetUpdateAvailableCallback(mockUpdateAvailableCallback);
   filterEngine->ForceUpdateCheck(&NoOpUpdaterCallback);
-  AdblockPlus::Sleep(100);
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
   ASSERT_EQ(1, timesCalled);
 
   filterEngine->RemoveUpdateAvailableCallback();
   filterEngine->ForceUpdateCheck(&NoOpUpdaterCallback);
-  AdblockPlus::Sleep(100);
+  std::this_thread::sleep_for(std::chrono::milliseconds(100));
   ASSERT_EQ(1, timesCalled);
 }
 
 TEST_F(FilterEngineTest, DocumentWhitelisting)
 {
   filterEngine->GetFilter("@@||example.org^$document")->AddToList();
   filterEngine->GetFilter("@@||example.com^$document,domain=example.de")->AddToList();
 
   ASSERT_TRUE(filterEngine->IsDocumentWhitelisted(
       "http://example.org",
@@ skipping 78 matching lines @@
 
 TEST_F(FilterEngineWithFreshFolder, DisableSubscriptionsAutoSelectOnFirstRun)
 {
   auto jsEngine = createJsEngine();
   FilterEngine::Prefs preSettings;
   preSettings["first_run_subscription_auto_select"] = jsEngine->NewValue(false);
   auto filterEngine = FilterEnginePtr(new AdblockPlus::FilterEngine(jsEngine, preSettings));
   const auto subscriptions = filterEngine->GetListedSubscriptions();
   EXPECT_EQ(0u, subscriptions.size());
 }