Remove implicit cast from CFX_WideString to (const wchar_t*)

xfa/fee/fde_txtedtengine.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/fee/fde_txtedtengine.h"
 
 #include <algorithm>
 
@@ skipping 1177 matching lines @@
     }
   }
   return bPreIsCR;
 }
 void CFDE_TxtEdtEngine::RecoverParagEnd(CFX_WideString& wsText) {
   FX_WCHAR wc = (m_nFirstLineEnd == FDE_TXTEDIT_LINEEND_CR) ? L'\n' : L'\r';
   if (m_nFirstLineEnd == FDE_TXTEDIT_LINEEND_CRLF) {
     CFX_ArrayTemplate<int32_t> PosArr;
     int32_t nLength = wsText.GetLength();
     int32_t i = 0;
-    FX_WCHAR* lpPos = (FX_WCHAR*)(const FX_WCHAR*)wsText;
+    FX_WCHAR* lpPos = const_cast<FX_WCHAR*>(wsText.c_str());
     for (i = 0; i < nLength; i++, lpPos++) {
       if (*lpPos == m_wLineEnd) {
         *lpPos = wc;
         PosArr.Add(i);
       }
     }
     const FX_WCHAR* lpSrcBuf = wsText.c_str();
     CFX_WideString wsTemp;
     int32_t nCount = PosArr.GetSize();
     FX_WCHAR* lpDstBuf = wsTemp.GetBuffer(nLength + nCount);
@@ skipping 10 matching lines @@
       nDstPos++;
     }
     if (nSrcPos < nLength) {
       FXSYS_memcpy(lpDstBuf + nDstPos, lpSrcBuf + nSrcPos,
                    (nLength - nSrcPos) * sizeof(FX_WCHAR));
     }
     wsTemp.ReleaseBuffer(nLength + nCount);
     wsText = wsTemp;
   } else {
     int32_t nLength = wsText.GetLength();
-    FX_WCHAR* lpBuf = (FX_WCHAR*)(const FX_WCHAR*)wsText;
+    FX_WCHAR* lpBuf = const_cast<FX_WCHAR*>(wsText.c_str());
     for (int32_t i = 0; i < nLength; i++, lpBuf++) {
       if (*lpBuf == m_wLineEnd) {
         *lpBuf = wc;
       }
     }
   }
 }
 int32_t CFDE_TxtEdtEngine::MovePage2Char(int32_t nIndex) {
   FXSYS_assert(nIndex >= 0);
   FXSYS_assert(nIndex <= m_pTxtBuf->GetTextLength());
@@ skipping 280 matching lines @@
     dwStyle |= FDE_TTOSTYLE_SingleLine;
   }
   if (m_Param.dwMode & FDE_TEXTEDITMODE_AutoLineWrap) {
     dwStyle |= FDE_TTOSTYLE_LineWrap;
     rcText.width = m_Param.fPlateWidth;
   } else {
     rcText.width = 65535;
   }
   pTextOut->SetStyles(dwStyle);
   wsText += L"\n";
-  pTextOut->CalcLogicSize(wsText, wsText.GetLength(), rcText);
+  pTextOut->CalcLogicSize(wsText.c_str(), wsText.GetLength(), rcText);
   pTextOut->Release();
   wsText.Delete(wsText.GetLength() - 1);
   if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Horz) &&
       (rcText.width > m_Param.fPlateWidth)) {
     return FALSE;
   }
   if ((m_Param.dwMode & FDE_TEXTEDITMODE_LimitArea_Vert) &&
       (rcText.height > m_Param.fLineSpace * m_Param.nLineCount)) {
     return FALSE;
   }
@@ skipping 235 matching lines @@
   int32_t nEngine = 0;
   ArchiveLoader >> nEngine;
   m_pEngine = (CFDE_TxtEdtEngine*)(uintptr_t)nEngine;
   int32_t iSel = 0;
   ArchiveLoader >> iSel;
   m_bSel = !!iSel;
   ArchiveLoader >> m_nIndex;
   ArchiveLoader >> m_nCaret;
   ArchiveLoader >> m_wsRange;
 }