Remove IFX_SystemHandler.

fpdfsdk/formfiller/cffl_formfiller.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 "fpdfsdk/formfiller/cffl_formfiller.h"
 
 #include "core/fpdfapi/fpdf_page/include/cpdf_page.h"
 #include "fpdfsdk/formfiller/cba_fontmap.h"
@@ skipping 585 matching lines @@
 
 void CFFL_FormFiller::RestoreState(CPDFSDK_PageView* pPageView) {}
 
 CPWL_Wnd* CFFL_FormFiller::ResetPDFWindow(CPDFSDK_PageView* pPageView,
                                           FX_BOOL bRestoreValue) {
   return GetPDFWindow(pPageView, FALSE);
 }
 
 void CFFL_FormFiller::TimerProc() {}
 
-IFX_SystemHandler* CFFL_FormFiller::GetSystemHandler() const {
+CFX_SystemHandler* CFFL_FormFiller::GetSystemHandler() const {
   return m_pApp->GetSysHandler();
 }
 
 void CFFL_FormFiller::EscapeFiller(CPDFSDK_PageView* pPageView,
                                    FX_BOOL bDestroyPDFWindow) {
   m_bValid = FALSE;
 
   FX_RECT rcRect = GetViewBBox(pPageView, m_pWidget);
   InvalidateRect(rcRect.left, rcRect.top, rcRect.right, rcRect.bottom);
 
@@ skipping 102 matching lines @@
   }
 }
 
 void CFFL_Button::OnDrawDeactive(CPDFSDK_PageView* pPageView,
                                  CPDFSDK_Annot* pAnnot,
                                  CFX_RenderDevice* pDevice,
                                  CFX_Matrix* pUser2Device,
                                  uint32_t dwFlags) {
   OnDraw(pPageView, pAnnot, pDevice, pUser2Device, dwFlags);
 }