Avoid narrowing of strings in FWL SetEditText methods.

xfa/fwl/lightwidget/cfwl_combobox.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/lightwidget/cfwl_combobox.h"
 
 #include <utility>
 
@@ skipping 70 matching lines @@
     return -1;
   return static_cast<IFWL_ComboBox*>(m_pIface)->GetCurSel();
 }
 
 FWL_ERR CFWL_ComboBox::SetCurSel(int32_t iSel) {
   if (!m_pIface)
     return FWL_ERR_Indefinite;
   return static_cast<IFWL_ComboBox*>(m_pIface)->SetCurSel(iSel);
 }
 
-FWL_ERR CFWL_ComboBox::SetEditText(const CFX_WideStringC& wsText) {
+FWL_ERR CFWL_ComboBox::SetEditText(const CFX_WideString& wsText) {
   if (!m_pIface)
     return FWL_ERR_Indefinite;
   return static_cast<IFWL_ComboBox*>(m_pIface)->SetEditText(wsText);
 }
 
 int32_t CFWL_ComboBox::GetEditTextLength() const {
   if (!m_pIface)
     return 0;
   return static_cast<IFWL_ComboBox*>(m_pIface)->GetEditTextLength();
 }
@@ skipping 321 matching lines @@
     FWL_HLISTITEM hItem,
     uint32_t dwCheckState) {
   CFWL_ComboBoxItem* pItem = reinterpret_cast<CFWL_ComboBoxItem*>(hItem);
   pItem->m_dwCheckState = dwCheckState;
   return FWL_ERR_Succeeded;
 }
 
 FX_FLOAT CFWL_ComboBox::CFWL_ComboBoxDP::GetListHeight(IFWL_Widget* pWidget) {
   return m_fMaxListHeight;
 }