Remove typdefs for pointer types in fx_system.h

fpdfsdk/include/pdfwindow/PWL_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 FPDFSDK_INCLUDE_PDFWINDOW_PWL_COMBOBOX_H_
 #define FPDFSDK_INCLUDE_PDFWINDOW_PWL_COMBOBOX_H_
 
 #include "PWL_Edit.h"
@@ skipping 59 matching lines @@
         
         virtual void                            SetFocus();
         virtual void                            KillFocus();
 
         FX_BOOL                                         IsModified() const;
 
 public: 
         void                                            SetFillerNotify(IPWL_Filler_Notify* pNotify);
 
         CFX_WideString                          GetText() const;
-        void                                            SetText(FX_LPCWSTR text);
+        void                                            SetText(const FX_WCHAR* text);
 
-        void                                            AddString(FX_LPCWSTR string);
+        void                                            AddString(const FX_WCHAR* string);
         int32_t                                 GetSelect() const;
         void                                            SetSelect(int32_t nItemIndex);
 
         void                                            SetEditSel(int32_t nStartChar,int32_t nEndChar);
         void                                            GetEditSel(int32_t & nStartChar, int32_t & nEndChar ) const;
         void                                            Clear();
         void                                            SelectAll();
         FX_BOOL                                         IsPopup() const;
 
         void                                            SetSelectText();
@@ skipping 16 matching lines @@
         int32_t                                 m_nSelectItem;
         IPWL_Filler_Notify*                     m_pFillerNotify;
 
 public:
         void                                                    AttachFFLData(void* pData) {m_pFormFiller = pData;}
 private:
         void*                                                   m_pFormFiller;
 };
 
 #endif  // FPDFSDK_INCLUDE_PDFWINDOW_PWL_COMBOBOX_H_