Issue 5013 - Make parameter const ref when applicable.

src/JsEngine.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 127 matching lines @@
   const ScopedV8IsolatePtr& isolate)
 {
   JsEnginePtr result(new JsEngine(isolate, std::move(timer)));
 
   const v8::Locker locker(result->GetIsolate());
   const v8::Isolate::Scope isolateScope(result->GetIsolate());
   const v8::HandleScope handleScope(result->GetIsolate());
 
   result->context.reset(new v8::Persistent<v8::Context>(result->GetIsolate(),
     v8::Context::New(result->GetIsolate())));
-  AdblockPlus::GlobalJsObject::Setup(result, appInfo, result->GetGlobalObject());
+  AdblockPlus::GlobalJsObject::Setup(*result, appInfo, result->GetGlobalObject());
   return result;
 }
 
 AdblockPlus::JsValuePtr AdblockPlus::JsEngine::GetGlobalObject()
 {
   JsContext context(shared_from_this());
   return JsValuePtr(new JsValue(shared_from_this(), context.GetV8Context()->Global()));
 }
 
 AdblockPlus::JsValuePtr AdblockPlus::JsEngine::Evaluate(const std::string& source,
@@ skipping 167 matching lines @@
 
 
 void AdblockPlus::JsEngine::SetGlobalProperty(const std::string& name,
                                               const AdblockPlus::JsValuePtr& value)
 {
   auto global = GetGlobalObject();
   if (!global)
     throw std::runtime_error("Global object cannot be null");
   global->SetProperty(name, value);
 }