Make CFX_ByteString(const CFX_ByteStringC&) explicit.

xfa/fwl/basewidget/fwl_editimp.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/fwl/basewidget/fwl_editimp.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 1462 matching lines @@
   if (m_iCurRecord == nCount - 1) {
     if (nCount == m_iMaxRecord) {
       m_RecordArr.RemoveAt(0);
       m_iCurRecord--;
     }
   } else {
     for (int32_t i = nCount - 1; i > m_iCurRecord; i--) {
       m_RecordArr.RemoveAt(i);
     }
   }
-  m_RecordArr.Add(bsDoRecord);
+  m_RecordArr.Add(CFX_ByteString(bsDoRecord));
   return m_iCurRecord = m_RecordArr.GetSize() - 1;
 }
 void CFWL_EditImp::Layout() {
   GetClientRect(m_rtClient);
   m_rtEngine = m_rtClient;
   FX_FLOAT* pfWidth = static_cast<FX_FLOAT*>(
       GetThemeCapacity(CFWL_WidgetCapacity::ScrollBarWidth));
   if (!pfWidth)
     return;
   FX_FLOAT fWidth = *pfWidth;
@@ skipping 696 matching lines @@
     }
     CFX_RectF rect;
     m_pOwner->GetWidgetRect(rect);
     CFX_RectF rtInvalidate;
     rtInvalidate.Set(0, 0, rect.width + 2, rect.height + 2);
     m_pOwner->Repaint(&rtInvalidate);
   }
   return TRUE;
 }
 void CFWL_EditImpDelegate::DoCursor(CFWL_MsgMouse* pMsg) {}