Avoid narrowing of strings in FWL SetEditText methods.

xfa/fwl/lightwidget/cfwl_combobox.h

 // 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
 
 #ifndef XFA_FWL_LIGHTWIDGET_CFWL_COMBOBOX_H_
 #define XFA_FWL_LIGHTWIDGET_CFWL_COMBOBOX_H_
 
 #include <memory>
@@ skipping 12 matching lines @@
   static CFWL_ComboBox* Create();
   FWL_ERR Initialize(const CFWL_WidgetProperties* pProperties = NULL);
   int32_t AddString(const CFX_WideStringC& wsText);
   int32_t AddString(const CFX_WideStringC& wsText, CFX_DIBitmap* pIcon);
   bool RemoveAt(int32_t iIndex);  // Returns false iff |iIndex| out of range.
   void RemoveAll();
   int32_t CountItems();
   FWL_ERR GetTextByIndex(int32_t iIndex, CFX_WideString& wsText);
   int32_t GetCurSel();
   FWL_ERR SetCurSel(int32_t iSel);
-  FWL_ERR SetEditText(const CFX_WideStringC& wsText);
+  FWL_ERR SetEditText(const CFX_WideString& wsText);
   int32_t GetEditTextLength() const;
   FWL_ERR GetEditText(CFX_WideString& wsText,
                       int32_t nStart = 0,
                       int32_t nCount = -1) const;
   FWL_ERR SetEditSelRange(int32_t nStart, int32_t nCount = -1);
   int32_t GetEditSelRange(int32_t nIndex, int32_t& nStart);
   int32_t GetEditLimit();
   FWL_ERR SetEditLimit(int32_t nLimit);
   FWL_ERR EditDoClipboard(int32_t iCmd);
   FX_BOOL EditRedo(const CFX_ByteStringC& bsRecord);
@@ skipping 90 matching lines @@
   CFX_RectF m_rtItem;
   uint32_t m_dwStyles;
   CFX_WideString m_wsText;
   CFX_DIBitmap* m_pDIB;
   uint32_t m_dwCheckState;
   CFX_RectF m_rtCheckBox;
   void* m_pData;
 };
 
 #endif  // XFA_FWL_LIGHTWIDGET_CFWL_COMBOBOX_H_