Remove implicit cast from CFX_WideString to (const wchar_t*)

fpdfsdk/javascript/util.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/util.h"
 
 #include <time.h>
 
@@ skipping 294 matching lines @@
 
 
 FX_BOOL util::printx(IJS_Context* cc,
                      const std::vector<CJS_Value>& params,
                      CJS_Value& vRet,
                      CFX_WideString& sError) {
   if (params.size() < 2) {
     sError = JSGetStringFromID((CJS_Context*)cc, IDS_STRING_JSPARAMERROR);
     return FALSE;
   }
-  vRet = printx(params[0].ToCFXWideString(), params[1].ToCFXWideString());
+  vRet =
+      printx(params[0].ToCFXWideString(), params[1].ToCFXWideString()).c_str();
   return TRUE;
 }
 
 enum CaseMode { kPreserveCase, kUpperCase, kLowerCase };
 
 static FX_WCHAR TranslateCase(FX_WCHAR input, CaseMode eMode) {
   if (eMode == kLowerCase && input >= 'A' && input <= 'Z')
     return input | 0x20;
   if (eMode == kUpperCase && input >= 'a' && input <= 'z')
     return input & ~0x20;
@@ skipping 126 matching lines @@
   }
   int arg = params[0].ToInt();
   if (arg < 0 || arg > 255) {
     sError = JSGetStringFromID(pContext, IDS_STRING_JSVALUEERROR);
     return FALSE;
   }
   CFX_WideString wStr(static_cast<FX_WCHAR>(arg));
   vRet = wStr.c_str();
   return TRUE;
 }