Issue 5013 - Make parameter const ref when applicable.

src/AppInfoJsObject.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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <AdblockPlus/AppInfo.h>
 #include <AdblockPlus/JsValue.h>
 
 #include "AppInfoJsObject.h"
 #include "Utils.h"
 
 using namespace AdblockPlus;
 
-JsValuePtr AppInfoJsObject::Setup(JsEnginePtr jsEngine, const AppInfo& appInfo,
-    JsValuePtr obj)
+JsValuePtr AppInfoJsObject::Setup(const AppInfo& appInfo, const JsValuePtr& obj)
 {
   obj->SetProperty("version", appInfo.version);
   obj->SetProperty("name", appInfo.name);
   obj->SetProperty("application", appInfo.application);
   obj->SetProperty("applicationVersion", appInfo.applicationVersion);
   obj->SetProperty("locale", appInfo.locale);
   obj->SetProperty("developmentBuild", appInfo.developmentBuild);
   return obj;
 }