Remove typdefs for pointer types in fx_system.h

fpdfsdk/include/fx_systemhandler.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_FX_SYSTEMHANDLER_H_
 #define FPDFSDK_INCLUDE_FX_SYSTEMHANDLER_H_
 
-typedef FX_LPVOID                               FX_HWND;
-typedef FX_LPVOID                               FX_HMENU;
+typedef void*                           FX_HWND;
+typedef void*                           FX_HMENU;
 typedef void                                    (*TimerCallback)(int32_t idEvent);
 
 typedef struct _FX_SYSTEMTIME 
 {
     _FX_SYSTEMTIME()
       : wYear(0),
         wMonth(0),
         wDayOfWeek(0),
         wDay(0),
         wHour(0),
@@ skipping 62 matching lines @@
         virtual FX_BOOL                         IsALTKeyDown(FX_DWORD nFlag) = 0;
         virtual FX_BOOL                         IsINSERTKeyDown(FX_DWORD nFlag) = 0;
 
         virtual FX_SYSTEMTIME           GetLocalTime() = 0;
 
         virtual int32_t                 GetCharSet() = 0;       
         virtual void                            SetCharSet(int32_t nCharSet) = 0;
 };
 
 #endif  // FPDFSDK_INCLUDE_FX_SYSTEMHANDLER_H_