Issue 1197 - change local copy of v8 (to 4.3.15) to work with Visual Studio 2013

include/AdblockPlus/JsValue.h

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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 10 matching lines @@
 #include <stdint.h>
 #include <string>
 #include <vector>
 #include <memory>
 
 namespace v8
 {
   class Value;
   template<class T> class Handle;
   template<class T> class Local;
-  template<class T> class Persistent;
+  template<class T> class UniquePersistent;
 }
 
 namespace AdblockPlus
 {
   class JsValue;
   class JsEngine;
 
   typedef std::shared_ptr<JsEngine> JsEnginePtr;
 
   /**
@@ skipping 81 matching lines @@
      */
     JsValuePtr Call(const JsValueList& params = JsValueList(),
         AdblockPlus::JsValuePtr thisPtr = AdblockPlus::JsValuePtr()) const;
 
     v8::Local<v8::Value> UnwrapValue() const;
   protected:
     JsEnginePtr jsEngine;
   private:
     JsValue(JsEnginePtr jsEngine, v8::Handle<v8::Value> value);
     void SetProperty(const std::string& name, v8::Handle<v8::Value> val);
-    std::unique_ptr<v8::Persistent<v8::Value>> value;
+    std::unique_ptr<v8::UniquePersistent<v8::Value>> value;
   };
 }
 
 #endif