Do not convert from string literal to wchar_t*

xfa/src/fxfa/src/fm2js/xfa_fm2jscontext.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 "xfa_fm2js.h"
 #include <time.h>
 #define FINANCIAL_PRECISION             0.00000001
 struct XFA_FMHtmlReserveCode {
@@ skipping 3940 matching lines @@
     CFX_WideString wsURLString = CFX_WideString::FromUTF8(szURLString.GetCStr(), szURLString.GetLength());
     CFX_WideTextBuf wsResultBuf;
     FX_WCHAR ch = 0;
     FX_INT32 iLength = wsURLString.GetLength();
     FX_WCHAR strEncode[4];
     strEncode[0] = '%';
     strEncode[3] = 0;
     FX_WCHAR strUnsafe[] = { ' ', '<', '>', '"', '#', '%', '{', '}', '|', '\\', '^', '~', '[', ']', '`' };
     FX_WCHAR strReserved[] = {';', '/', '?', ':', '@', '=', '&'};
     FX_WCHAR strSpecial[] = {'$', '-', '+', '!', '*', '\'', '(', ')', ','};
-    FX_WCHAR* strCode = L"0123456789abcdef";
+    const FX_LPCWSTR strCode = L"0123456789abcdef";
     for (FX_INT32 u = 0; u < iLength; ++u) {
         ch = wsURLString.GetAt(u);
         FX_INT32 i = 0;
         FX_INT32 iCount = sizeof(strUnsafe) / sizeof(strUnsafe[0]);
         while (i < iCount) {
             if (ch == strUnsafe[i]) {
                 FX_INT32 iIndex = ch / 16;
                 strEncode[1] = strCode[iIndex];
                 strEncode[2] = strCode[ch - iIndex * 16];
                 wsResultBuf << FX_WSTRC(strEncode);
@@ skipping 149 matching lines @@
     strEncode[6] = 0;
     strEncode[7] = ';';
     strEncode[8] = 0;
     FX_LPCWSTR const strName[] = {
         L"quot",
         L"amp",
         L"apos",
         L"lt",
         L"gt"
     };
-    FX_WCHAR* strCode = L"0123456789abcdef";
+    const FX_LPCWSTR strCode = L"0123456789abcdef";
     FX_WCHAR ch = 0;
     FX_INT32 iLength = wsXMLString.GetLength();
     FX_INT32 iIndex = 0;
     FX_INT32 u = 0;
     FX_LPCWSTR pData = wsXMLString;
     for (u = 0; u < iLength; ++u) {
         ch = *(pData + u);
         switch (ch) {
             case '"':
                 wsResultBuf.AppendChar('&');
@@ skipping 3034 matching lines @@
     FXSYS_assert(pAppProvider);
     CFX_WideString wsFormat;
     pAppProvider->LoadString(iStringID, wsFormat);
     CFX_WideString wsMessage;
     va_list arg_ptr;
     va_start(arg_ptr, iStringID);
     wsMessage.FormatV((FX_LPCWSTR)wsFormat, arg_ptr);
     va_end(arg_ptr);
     FXJSE_ThrowMessage(FX_BSTRC(""), FX_UTF8Encode(wsMessage, wsMessage.GetLength()));
 }