Issue 5180 - introduce asynchronous web request

test/FilterEngine.cpp

 /*
  * 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 204 matching lines @@
     {
       data = std::make_shared<SharedData>();
       BaseJsTest::SetUp();
       jsEngine->SetFileSystem(AdblockPlus::FileSystemPtr(new LazyFileSystem()));
       jsEngine->SetWebRequest(webRequest = std::make_shared<MockWebRequest>());
       jsEngine->SetLogSystem(AdblockPlus::LogSystemPtr(new LazyLogSystem()));
 
       subscriptionUrlPrefix = "http://example";
       ServerResponse exampleSubscriptionResponse;
       exampleSubscriptionResponse.responseStatus = 200;
-      exampleSubscriptionResponse.status = WebRequest::NS_OK;
+      exampleSubscriptionResponse.status = IWebRequest::NS_OK;
       exampleSubscriptionResponse.responseText = "[Adblock Plus 2.0]\n||example.com";
       webRequest->responses.emplace(subscriptionUrlPrefix, exampleSubscriptionResponse);
       createParams.preconfiguredPrefs.emplace("first_run_subscription_auto_select", jsEngine->NewValue(false));
       data->isConnectionAllowed = true;
       auto closure = data;
       createParams.isConnectionAllowedCallback = [closure](const std::string* allowedConnectionType)->bool{
         closure->capturedConnectionTypes.Add(allowedConnectionType);
         return closure->isConnectionAllowed;
       };
     }
@@ skipping 895 matching lines @@
     filterEngine->SetAllowedConnectionType(&testConnection);
     auto subscription = EnsureExampleSubscriptionAndForceUpdate("subB");
     EXPECT_EQ("synchronize_ok", subscription.GetProperty("downloadStatus").AsString());
     EXPECT_EQ(1u, subscription.GetProperty("filters").AsList().size());
     auto capturedConnectionTypes = data->capturedConnectionTypes.GetStrings();
     ASSERT_EQ(1u, capturedConnectionTypes.size());
     EXPECT_TRUE(capturedConnectionTypes[0].first);
     EXPECT_EQ(testConnection, capturedConnectionTypes[0].second);
   }
 }