Cleanup CFX_SystemHandler.

fpdfsdk/cfx_systemhandler.h

 // Copyright 2016 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_CFX_SYSTEMHANDLER_H_
 #define FPDFSDK_CFX_SYSTEMHANDLER_H_
 
 #include "core/fxcrt/include/fx_coordinates.h"
 #include "core/fxcrt/include/fx_system.h"
 
-using FX_HWND = void*;
-using FX_HMENU = void*;
 using TimerCallback = void (*)(int32_t idEvent);
 
 struct FX_SYSTEMTIME {
   FX_SYSTEMTIME()
       : wYear(0),
         wMonth(0),
         wDayOfWeek(0),
         wDay(0),
         wHour(0),
         wMinute(0),
@@ skipping 11 matching lines @@
 };
 
 // Cursor style. These must match the values in public/fpdf_formfill.h
 #define FXCT_ARROW 0
 #define FXCT_NESW 1
 #define FXCT_NWSE 2
 #define FXCT_VBEAM 3
 #define FXCT_HBEAM 4
 #define FXCT_HAND 5
 
+class CFFL_FormFiller;
 class CPDF_Document;
 class CPDF_Font;
 class CPDFSDK_Environment;
+class CPDFSDK_Widget;
 
 class CFX_SystemHandler {
  public:
   explicit CFX_SystemHandler(CPDFSDK_Environment* pEnv) : m_pEnv(pEnv) {}
   ~CFX_SystemHandler() {}
 
-  void InvalidateRect(FX_HWND hWnd, FX_RECT rect);
-  void OutputSelectedRect(void* pFormFiller, CFX_FloatRect& rect);
+  void InvalidateRect(CPDFSDK_Widget* widget, FX_RECT rect);
+  void OutputSelectedRect(CFFL_FormFiller* pFormFiller, CFX_FloatRect& rect);
   bool IsSelectionImplemented() const;
 
   void SetCursor(int32_t nCursorType);
 
   bool FindNativeTrueTypeFont(CFX_ByteString sFontFaceName);
   CPDF_Font* AddNativeTrueTypeFontToPDF(CPDF_Document* pDoc,
                                         CFX_ByteString sFontFaceName,
                                         uint8_t nCharset);
+
   int32_t SetTimer(int32_t uElapse, TimerCallback lpTimerFunc);
   void KillTimer(int32_t nID);
+
   bool IsSHIFTKeyDown(uint32_t nFlag) const;
   bool IsCTRLKeyDown(uint32_t nFlag) const;
   bool IsALTKeyDown(uint32_t nFlag) const;
 
-  FX_SYSTEMTIME GetLocalTime();
-
  private:
   CPDFSDK_Environment* const m_pEnv;
 };
 
 #endif  // FPDFSDK_CFX_SYSTEMHANDLER_H_