Issue #4692 - Rewrite web request task to avoid engine self-reference

src/JsEngine.cpp

Index: src/JsEngine.cpp
===================================================================
--- a/src/JsEngine.cpp
+++ b/src/JsEngine.cpp
@@ -23,6 +23,7 @@
 #include "JsError.h"
 #include "Scheduler.h"
 #include "Utils.h"
+#include "WebRequestJsObject.h"
 
 const AdblockPlus::ImmediateSingleUseThreadType AdblockPlus::ImmediateSingleUseThread = {};
 
@@ -109,8 +110,15 @@
    */
   const v8::Context::Scope contextScope(GetContextAsLocal());
   auto globalObject = GetGlobalObject();
+  // Timeout
   auto propertyName = AdblockPlus::Utils::ToV8String(GetIsolate(), "setTimeout");
   globalObject->Set(propertyName, MakeCallback(::CallbackForSetTimeout));
+  // Web request
+  auto auxiliaryObject = v8::Object::New();
+  propertyName = AdblockPlus::Utils::ToV8String(GetIsolate(), "GET");
+  auxiliaryObject->Set(propertyName, MakeCallback(::GETCallback));
+  propertyName = AdblockPlus::Utils::ToV8String(GetIsolate(), "_webRequest");
+  globalObject->Set(propertyName, auxiliaryObject);
   // TODO: Move the rest of the global object initializations here
 }