Remove implicit cast from CFX_WideString to (const wchar_t*)

fpdfsdk/javascript/PublicMethods.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 "fpdfsdk/javascript/PublicMethods.h"
 
 #include <algorithm>
 #include <string>
@@ skipping 1636 matching lines @@
                                         const std::vector<CJS_Value>& params,
                                         CJS_Value& vRet,
                                         CFX_WideString& sError) {
   CJS_Context* pContext = (CJS_Context*)cc;
   if (params.size() != 1) {
     sError = JSGetStringFromID(pContext, IDS_STRING_JSPARAMERROR);
     return FALSE;
   }
   CFX_WideString ws = params[0].ToCFXWideString();
   ws.Replace(L",", L".");
-  vRet = ws;
+  vRet = ws.c_str();
   vRet.MaybeCoerceToNumber();
   if (vRet.GetType() != CJS_Value::VT_number)
     vRet = 0;
   return TRUE;
 }
 
 FX_BOOL CJS_PublicMethods::AFSimple_Calculate(
     IJS_Context* cc,
     const std::vector<CJS_Value>& params,
     CJS_Value& vRet,
@@ skipping 177 matching lines @@
     nums.SetElement(nIndex, CJS_Value(pRuntime, sPart.c_str()));
   }
 
   if (nums.GetLength() > 0)
     vRet = nums;
   else
     vRet.SetNull();
 
   return TRUE;
 }