Template out V8 and prepare for other JS engine implementations

src/GlobalJsObject.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present 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 47 matching lines @@
     {
       v8::Isolate* isolate = arguments.GetIsolate();
       return Utils::ThrowExceptionInJS(isolate, "_triggerEvent expects at least one parameter");
     }
     std::string eventName = converted.front().AsString();
     converted.erase(converted.cbegin());
     jsEngine->TriggerEvent(eventName, move(converted));
   }
 }
 
-JsValue& GlobalJsObject::Setup(JsEngine& jsEngine, const AppInfo& appInfo,
-    JsValue& obj)
+AdblockPlus::JsValue& AdblockPlus::GlobalJsObject::Setup(AdblockPlus::JsEngine& jsEngine, const AppInfo& appInfo,
+  AdblockPlus::JsValue& obj)
 {
   obj.SetProperty("setTimeout", jsEngine.NewCallback(::SetTimeoutCallback));
   obj.SetProperty("_triggerEvent", jsEngine.NewCallback(::TriggerEventCallback));
   auto value = jsEngine.NewObject();
   obj.SetProperty("_fileSystem", FileSystemJsObject::Setup(jsEngine, value));
   value = jsEngine.NewObject();
   obj.SetProperty("_webRequest", WebRequestJsObject::Setup(jsEngine, value));
   value = jsEngine.NewObject();
   obj.SetProperty("console", ConsoleJsObject::Setup(jsEngine, value));
   value = jsEngine.NewObject();
   obj.SetProperty("_appInfo", AppInfoJsObject::Setup(appInfo, value));
   return obj;
 }