Make down-conversion explicit from CFX_Widetring to CFX_WideStringC.

xfa/fxfa/app/xfa_fftextedit.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/fxfa/app/xfa_fftextedit.h"
 
 #include <vector>
 
@@ skipping 183 matching lines @@
     if (pAppProvider) {
       CFX_WideString wsTitle;
       pAppProvider->LoadString(XFA_IDS_AppName, wsTitle);
       CFX_WideString wsMessage;
       CFX_WideString wsError;
       pAppProvider->LoadString(XFA_IDS_ValidateNumberError, wsError);
       CFX_WideString wsSomField;
       pAcc->GetNode()->GetSOMExpression(wsSomField);
       wsMessage.Format(wsError, (const FX_WCHAR*)wsText,
                        (const FX_WCHAR*)wsSomField);
-      pAppProvider->MsgBox(wsMessage, wsTitle, XFA_MBICON_Error, XFA_MB_OK);
+      pAppProvider->MsgBox(wsMessage.AsWideStringC(), wsTitle.AsWideStringC(),
+                           XFA_MBICON_Error, XFA_MB_OK);
     }
   }
 }
 FX_BOOL CXFA_FFTextEdit::IsDataChanged() {
   return (m_dwStatus & XFA_WIDGETSTATUS_TextEditValueChanged) != 0;
 }
 uint32_t CXFA_FFTextEdit::GetAlignment() {
   uint32_t dwExtendedStyle = 0;
   if (CXFA_Para para = m_pDataAcc->GetPara()) {
     int32_t iHorz = para.GetHorizontalAlign();
@@ skipping 371 matching lines @@
   pWidget->Initialize();
   m_pNormalWidget = (CFWL_Widget*)pWidget;
   IFWL_Widget* pIWidget = m_pNormalWidget->GetWidget();
   m_pNormalWidget->SetPrivateData(pIWidget, this, NULL);
   IFWL_NoteDriver* pNoteDriver = FWL_GetApp()->GetNoteDriver();
   pNoteDriver->RegisterEventTarget(pIWidget, pIWidget);
   m_pOldDelegate = m_pNormalWidget->SetDelegate(this);
   m_pNormalWidget->LockUpdate();
   CFX_WideString wsText;
   m_pDataAcc->GetValue(wsText, XFA_VALUEPICTURE_Display);
-  pWidget->SetEditText(wsText);
+  pWidget->SetEditText(wsText.AsWideStringC());
   if (CXFA_Value value = m_pDataAcc->GetFormValue()) {
     switch (value.GetChildValueClassID()) {
       case XFA_ELEMENT_Date: {
         if (!wsText.IsEmpty()) {
           CXFA_LocaleValue lcValue = XFA_GetLocaleValue(m_pDataAcc);
           CFX_Unitime date = lcValue.GetDate();
           if ((FX_UNITIME)date != 0) {
             pWidget->SetCurSel(date.GetYear(), date.GetMonth(), date.GetDay());
           }
         }
@@ skipping 79 matching lines @@
 FX_BOOL CXFA_FFDateTimeEdit::UpdateFWLData() {
   if (!m_pNormalWidget) {
     return FALSE;
   }
   XFA_VALUEPICTURE eType = XFA_VALUEPICTURE_Display;
   if (IsFocused()) {
     eType = XFA_VALUEPICTURE_Edit;
   }
   CFX_WideString wsText;
   m_pDataAcc->GetValue(wsText, eType);
-  ((CFWL_DateTimePicker*)m_pNormalWidget)->SetEditText(wsText);
+  ((CFWL_DateTimePicker*)m_pNormalWidget)->SetEditText(wsText.AsWideStringC());
   if (IsFocused() && !wsText.IsEmpty()) {
     CXFA_LocaleValue lcValue = XFA_GetLocaleValue(m_pDataAcc);
     CFX_Unitime date = lcValue.GetDate();
     if (lcValue.IsValid()) {
       if ((FX_UNITIME)date != 0) {
         ((CFWL_DateTimePicker*)m_pNormalWidget)
             ->SetCurSel(date.GetYear(), date.GetMonth(), date.GetDay());
       }
     }
   }
@@ skipping 62 matching lines @@
   CFX_WideString wsPicture;
   m_pDataAcc->GetPictureContent(wsPicture, XFA_VALUEPICTURE_Edit);
   CXFA_LocaleValue date(XFA_VT_DATE, GetDoc()->GetXFADoc()->GetLocalMgr());
   CFX_Unitime dt;
   dt.Set(iYear, iMonth, iDay);
   date.SetDate(dt);
   CFX_WideString wsDate;
   date.FormatPatterns(wsDate, wsPicture, m_pDataAcc->GetLocal(),
                       XFA_VALUEPICTURE_Edit);
   CFWL_DateTimePicker* pDateTime = (CFWL_DateTimePicker*)m_pNormalWidget;
-  pDateTime->SetEditText(wsDate);
+  pDateTime->SetEditText(wsDate.AsWideStringC());
   pDateTime->Update();
   GetDoc()->GetDocProvider()->SetFocusWidget(GetDoc(), NULL);
   CXFA_EventParam eParam;
   eParam.m_eType = XFA_EVENT_Change;
   eParam.m_pTarget = m_pDataAcc;
   m_pDataAcc->GetValue(eParam.m_wsNewText, XFA_VALUEPICTURE_Raw);
   m_pDataAcc->ProcessEvent(XFA_ATTRIBUTEENUM_Change, &eParam);
 }
 FWL_ERR CXFA_FFDateTimeEdit::OnProcessEvent(CFWL_Event* pEvent) {
   uint32_t dwEventID = pEvent->GetClassID();
   if (dwEventID == FWL_EVTHASH_DTP_SelectChanged) {
     CFWL_Event_DtpSelectChanged* event = (CFWL_Event_DtpSelectChanged*)pEvent;
     OnSelectChanged(m_pNormalWidget->GetWidget(), event->iYear, event->iMonth,
                     event->iDay);
     return TRUE;
   } else {
     return CXFA_FFTextEdit::OnProcessEvent(pEvent);
   }
 }