Move ifx_renderdevicedriver to a separate file to share

core/fxge/win32/fx_win32_print.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 "core/fxge/include/fx_ge.h"
 
 #if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
 
 #include <windows.h>
 
 #include "core/fxge/dib/dib_int.h"
 #include "core/fxge/ge/fx_text_int.h"
 #include "core/fxge/include/fx_freetype.h"
 #include "core/fxge/include/fx_ge_win32.h"
 #include "core/fxge/win32/win32_int.h"
 
 CGdiPrinterDriver::CGdiPrinterDriver(HDC hDC)
     : CGdiDeviceDriver(hDC, FXDC_PRINTER),
       m_HorzSize(::GetDeviceCaps(m_hDC, HORZSIZE)),
       m_VertSize(::GetDeviceCaps(m_hDC, VERTSIZE)) {}
 
 CGdiPrinterDriver::~CGdiPrinterDriver() {}
 
-int CGdiPrinterDriver::GetDeviceCaps(int caps_id) {
+int CGdiPrinterDriver::GetDeviceCaps(int caps_id) const {
   if (caps_id == FXDC_HORZ_SIZE)
     return m_HorzSize;
   if (caps_id == FXDC_VERT_SIZE)
     return m_VertSize;
   return CGdiDeviceDriver::GetDeviceCaps(caps_id);
 }
 
 FX_BOOL CGdiPrinterDriver::SetDIBits(const CFX_DIBSource* pSource,
                                      uint32_t color,
                                      const FX_RECT* pSrcRect,
@@ skipping 116 matching lines @@
       return FALSE;
 
     return StretchDIBits(pTransformed.get(), color, full_rect.left,
                          full_rect.top, full_rect.Width(), full_rect.Height(),
                          nullptr, 0, blend_type);
   }
   return FALSE;
 }
 
 #endif