Remove implicit cast from CFX_WideString to (const wchar_t*)

xfa/fgas/font/fgas_fontutils.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/fgas/font/fgas_fontutils.h"
 
 #include "core/fxcrt/include/fx_ext.h"
 #include "xfa/fgas/font/fgas_font.h"
@@ skipping 24 matching lines @@
                                 uint32_t dwFontStyles,
                                 uint16_t wCodePage) {
   CFX_WideString wsFont(pszFontFamily);
   if (dwFontStyles & FX_FONTSTYLE_Bold) {
     wsFont += L"Bold";
   }
   if (dwFontStyles & FX_FONTSTYLE_Italic) {
     wsFont += L"Italic";
   }
   wsFont += wCodePage;
-  return FX_HashCode_String_GetW((const FX_WCHAR*)wsFont, wsFont.GetLength());
+  return FX_HashCode_String_GetW(wsFont.c_str(), wsFont.GetLength());
 }
 static const FGAS_FONTUSB g_FXGdiFontUSBTable[] = {
     {0x0000, 0x007F, 0, 1252},     {0x0080, 0x00FF, 1, 1252},
     {0x0100, 0x017F, 2, 1250},     {0x0180, 0x024F, 3, 1250},
     {0x0250, 0x02AF, 4, 0xFFFF},   {0x02B0, 0x02FF, 5, 0xFFFF},
     {0x0300, 0x036F, 6, 0xFFFF},   {0x0370, 0x03FF, 7, 1253},
     {0x0400, 0x04FF, 9, 1251},     {0x0500, 0x052F, 9, 0xFFFF},
     {0x0530, 0x058F, 10, 0xFFFF},  {0x0590, 0x05FF, 11, 1255},
     {0x0600, 0x06FF, 13, 1256},    {0x0700, 0x074F, 71, 0xFFFF},
     {0x0750, 0x077F, 13, 0xFFFF},  {0x0780, 0x07BF, 72, 0xFFFF},
@@ skipping 88 matching lines @@
     if (wUnicode < usb.wStartUnicode) {
       iEnd = iMid - 1;
     } else if (wUnicode > usb.wEndUnicode) {
       iStart = iMid + 1;
     } else {
       return &usb;
     }
   } while (iStart <= iEnd);
   return NULL;
 }