Make down-conversion explicit from CFX_ByteString to CFX_ByteStringC.

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 373 matching lines @@
     }
   }
   if (IsSelect()) {
     DeleteSelect();
   }
   if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) {
     IFDE_TxtEdtDoRecord* pRecord =
         new CFDE_TxtEdtDoRecord_Insert(this, m_nCaret, lpBuffer, nLength);
     CFX_ByteString bsDoRecord;
     pRecord->Serialize(bsDoRecord);
-    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord);
+    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord.AsByteStringC());
     pRecord->Release();
   }
   GetText(m_ChangeInfo.wsPrevText, 0);
   Inner_Insert(m_nCaret, lpBuffer, nLength);
   m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Insert;
   m_ChangeInfo.wsInsert = CFX_WideString(lpBuffer, nLength);
   nStart = m_nCaret;
   nStart += nLength;
   FX_WCHAR wChar = m_pTxtBuf->GetCharByIndex(nStart - 1);
   FX_BOOL bBefore = TRUE;
@@ skipping 42 matching lines @@
       return FDE_TXTEDT_MODIFY_RET_F_Invalidate;
     }
   }
   if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) {
     CFX_WideString wsRange;
     m_pTxtBuf->GetRange(wsRange, nStart, nCount);
     IFDE_TxtEdtDoRecord* pRecord =
         new CFDE_TxtEdtDoRecord_DeleteRange(this, nStart, m_nCaret, wsRange);
     CFX_ByteString bsDoRecord;
     pRecord->Serialize(bsDoRecord);
-    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord);
+    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord.AsByteStringC());
     pRecord->Release();
   }
   m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Delete;
   GetText(m_ChangeInfo.wsDelete, nStart, nCount);
   Inner_DeleteRange(nStart, nCount);
   SetCaretPos(nStart + ((!bBackspace && nStart > 0) ? -1 : 0),
               (bBackspace || nStart == 0));
   m_Param.pEventSink->On_TextChanged(this, m_ChangeInfo);
   return FDE_TXTEDT_MODIFY_RET_S_Normal;
 }
@@ skipping 469 matching lines @@
   }
   FXSYS_assert((nStart + nCount) <= m_pTxtBuf->GetTextLength());
 
   if (!(m_Param.dwMode & FDE_TEXTEDITMODE_NoRedoUndo)) {
     CFX_WideString wsRange;
     m_pTxtBuf->GetRange(wsRange, nStart, nCount);
     IFDE_TxtEdtDoRecord* pRecord = new CFDE_TxtEdtDoRecord_DeleteRange(
         this, nStart, m_nCaret, wsRange, bSel);
     CFX_ByteString bsDoRecord;
     pRecord->Serialize(bsDoRecord);
-    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord);
+    m_Param.pEventSink->On_AddDoRecord(this, bsDoRecord.AsByteStringC());
     pRecord->Release();
   }
   m_ChangeInfo.nChangeType = FDE_TXTEDT_TEXTCHANGE_TYPE_Delete;
   GetText(m_ChangeInfo.wsDelete, nStart, nCount);
   Inner_DeleteRange(nStart, nCount);
 }
 void CFDE_TxtEdtEngine::ResetEngine() {
   RemoveAllPages();
   RemoveAllParags();
   ClearSelection();
@@ skipping 816 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;
 }