More tidy of CJS_Object, kill implicit cast operator

fpdfsdk/include/javascript/JS_Object.h

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #ifndef FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_
 #define FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_
 
 #include <map>
@@ skipping 42 matching lines @@
 
   void MakeWeak();
   void Dispose();
 
   virtual FX_BOOL IsType(const FX_CHAR* sClassName) { return TRUE; }
   virtual CFX_ByteString GetClassName() { return ""; }
 
   virtual FX_BOOL InitInstance(IFXJS_Context* cc) { return TRUE; }
   virtual FX_BOOL ExitInstance() { return TRUE; }
 
-  operator v8::Local<v8::Object>() {
-    return v8::Local<v8::Object>::New(m_pIsolate, m_pObject);
-  }
+  v8::Local<v8::Object> ToV8Object() { return m_pV8Object.Get(m_pIsolate); }
 
   // Takes ownership of |pObj|.
   void SetEmbedObject(CJS_EmbedObj* pObj) { m_pEmbedObj.reset(pObj); }
   CJS_EmbedObj* GetEmbedObject() const { return m_pEmbedObj.get(); }
 
   static CPDFSDK_PageView* JSGetPageView(IFXJS_Context* cc);
   static int MsgBox(CPDFDoc_Environment* pApp,
                     CPDFSDK_PageView* pPageView,
                     const FX_WCHAR* swMsg,
                     const FX_WCHAR* swTitle = NULL,
                     FX_UINT nType = 0,
                     FX_UINT nIcon = 0);
   static void Alert(CJS_Context* pContext, const FX_WCHAR* swMsg);
 
   v8::Isolate* GetIsolate() { return m_pIsolate; }
 
  protected:
   nonstd::unique_ptr<CJS_EmbedObj> m_pEmbedObj;
-  v8::Global<v8::Object> m_pObject;
+  v8::Global<v8::Object> m_pV8Object;
   v8::Isolate* m_pIsolate;
 };
 
 class CJS_Timer {
  public:
   CJS_Timer(CJS_EmbedObj* pObj, CPDFDoc_Environment* pApp)
       : m_nTimerID(0),
         m_pEmbedObj(pObj),
         m_bProcessing(FALSE),
         m_dwStartTime(0),
@@ skipping 39 matching lines @@
   FX_DWORD m_dwTimeOut;
   FX_DWORD m_dwElapse;
   CJS_Runtime* m_pRuntime;
   CFX_WideString m_swJScript;
   int m_nType;  // 0:Interval; 1:TimeOut
 
   CPDFDoc_Environment* m_pApp;
 };
 
 #endif  // FPDFSDK_INCLUDE_JAVASCRIPT_JS_OBJECT_H_