Avoid narrowing of strings in FWL SetEditText methods.

xfa/fxfa/app/xfa_ffchoicelist.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_ffchoicelist.h"
 
 #include "xfa/fwl/basewidget/ifwl_edit.h"
 #include "xfa/fwl/core/ifwl_app.h"
@@ skipping 232 matching lines @@
     pComboBox->AddString(wsLabelArray[i].AsStringC());
   }
   CFX_Int32Array iSelArray;
   m_pDataAcc->GetSelectedItems(iSelArray);
   int32_t iSelCount = iSelArray.GetSize();
   if (iSelCount > 0) {
     pComboBox->SetCurSel(iSelArray[0]);
   } else {
     CFX_WideString wsText;
     m_pDataAcc->GetValue(wsText, XFA_VALUEPICTURE_Raw);
-    pComboBox->SetEditText(wsText.AsStringC());
+    pComboBox->SetEditText(wsText);
   }
   UpdateWidgetProperty();
   m_pNormalWidget->UnlockUpdate();
   return CXFA_FFField::LoadWidget();
 }
 void CXFA_FFComboBox::UpdateWidgetProperty() {
   CFWL_ComboBox* pComboBox = (CFWL_ComboBox*)m_pNormalWidget;
   if (!pComboBox) {
     return;
   }
@@ skipping 111 matching lines @@
   }
   CFX_Int32Array iSelArray;
   m_pDataAcc->GetSelectedItems(iSelArray);
   int32_t iSelCount = iSelArray.GetSize();
   if (iSelCount > 0) {
     ((CFWL_ComboBox*)m_pNormalWidget)->SetCurSel(iSelArray[0]);
   } else {
     CFX_WideString wsText;
     ((CFWL_ComboBox*)m_pNormalWidget)->SetCurSel(-1);
     m_pDataAcc->GetValue(wsText, XFA_VALUEPICTURE_Raw);
-    ((CFWL_ComboBox*)m_pNormalWidget)->SetEditText(wsText.AsStringC());
+    ((CFWL_ComboBox*)m_pNormalWidget)->SetEditText(wsText);
   }
   m_pNormalWidget->Update();
   return TRUE;
 }
 FX_BOOL CXFA_FFComboBox::CanUndo() {
   return m_pDataAcc->IsChoiceListAllowTextEntry() &&
          ((CFWL_ComboBox*)m_pNormalWidget)->EditCanUndo();
 }
 FX_BOOL CXFA_FFComboBox::CanRedo() {
   return m_pDataAcc->IsChoiceListAllowTextEntry() &&
@@ skipping 126 matching lines @@
       break;
     }
     default: {}
   }
   return m_pOldDelegate->OnProcessEvent(pEvent);
 }
 FWL_ERR CXFA_FFComboBox::OnDrawWidget(CFX_Graphics* pGraphics,
                                       const CFX_Matrix* pMatrix) {
   return m_pOldDelegate->OnDrawWidget(pGraphics, pMatrix);
 }