Kill overloaded cast operators in CJS_Value.

fpdfsdk/src/javascript/event.cpp

 // 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
 
 #include "../../include/javascript/JavaScript.h"
 #include "../../include/javascript/IJavaScript.h"
 #include "../../include/javascript/JS_Define.h"
 #include "../../include/javascript/JS_Object.h"
@@ skipping 334 matching lines @@
         CJS_EventHandler* pEvent = pContext->GetEventHandler();
         ASSERT(pEvent != NULL);
 
         if (wcscmp((const wchar_t*)pEvent->Type(),L"Field") != 0)
                 return FALSE;
         if(!pEvent->m_pValue)
                 return FALSE;
         CFX_WideString & val = pEvent->Value();
         if (vp.IsSetting())
         {
-                val = vp;
+                vp >> val;
         }
         else
         {
                 vp << val;
         }
         return TRUE;
 }
 
 FX_BOOL event::willCommit(IFXJS_Context* cc, CJS_PropValue& vp, CFX_WideString& sError)
 {
         if (!vp.IsGetting())return FALSE;
 
         CJS_Context* pContext = (CJS_Context*)cc;
         ASSERT(pContext != NULL);
         CJS_EventHandler* pEvent = pContext->GetEventHandler();
         ASSERT(pEvent != NULL);
 
         if (pEvent->WillCommit())
                 vp << TRUE;
         else
                 vp << FALSE;
         return TRUE;
 }