Remove IFX_SystemHandler.

fpdfsdk/pdfwindow/PWL_EditCtrl.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/pdfwindow/PWL_EditCtrl.h"
 
 #include "core/fpdfdoc/include/cpvt_section.h"
 #include "core/fpdfdoc/include/cpvt_word.h"
@@ skipping 42 matching lines @@
   CFX_FloatPoint point2(1, 1);
 
   mt.Transform(point1.x, point1.y);
   mt.Transform(point2.x, point2.y);
 
   return point2.y == point1.y;
 }
 
 void CPWL_EditCtrl::SetCursor() {
   if (IsValid()) {
-    if (IFX_SystemHandler* pSH = GetSystemHandler()) {
+    if (CFX_SystemHandler* pSH = GetSystemHandler()) {
       if (IsWndHorV())
         pSH->SetCursor(FXCT_VBEAM);
       else
         pSH->SetCursor(FXCT_HBEAM);
     }
   }
 }
 
 void CPWL_EditCtrl::RePosChildWnd() {
   m_pEdit->SetPlateRect(GetClientRect());
@@ skipping 548 matching lines @@
   CPVT_WordPlace wpEnd = m_pEdit->WordIndexToWordPlace(nEndChar);
   return m_pEdit->GetRangeText(CPVT_WordRange(wpStart, wpEnd));
 }
 
 void CPWL_EditCtrl::SetReadyToInput() {
   if (m_bMouseDown) {
     ReleaseCapture();
     m_bMouseDown = FALSE;
   }
 }