Move ifx_renderdevicedriver to a separate file to share

core/fxge/apple/fx_quartz_device.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/fxcrt/include/fx_ext.h"
 
 #ifndef _SKIA_SUPPORT_
 #include "core/fxge/agg/fx_agg_driver.h"
@@ skipping 172 matching lines @@
 CFX_QuartzDeviceDriver::~CFX_QuartzDeviceDriver() {
   CGContextRestoreGState(m_context);
   m_saveCount--;
   for (int i = 0; i < m_saveCount; ++i) {
     CGContextRestoreGState(m_context);
   }
   if (m_context) {
     CGContextRelease(m_context);
   }
 }
-int CFX_QuartzDeviceDriver::GetDeviceCaps(int capsID) {
+int CFX_QuartzDeviceDriver::GetDeviceCaps(int capsID) const {
   switch (capsID) {
-    case FXDC_DEVICE_CLASS: {
+    case FXDC_DEVICE_CLASS:
       return m_deviceClass;
-    }
-    case FXDC_PIXEL_WIDTH: {
+    case FXDC_PIXEL_WIDTH:
       return m_width;
-    }
-    case FXDC_PIXEL_HEIGHT: {
+    case FXDC_PIXEL_HEIGHT:
       return m_height;
-    }
-    case FXDC_BITS_PIXEL: {
+    case FXDC_BITS_PIXEL:
       return 32;
-    }
-    case FXDC_RENDER_CAPS: {
+    case FXDC_RENDER_CAPS:
       return m_renderCaps;
-    }
-    default: { return 0; }
+    default:
+      return 0;
   }
 }
 CFX_Matrix CFX_QuartzDeviceDriver::GetCTM() const {
   CGAffineTransform ctm = CGContextGetCTM(m_context);
   return CFX_Matrix(ctm.a, ctm.b, ctm.c, ctm.d, ctm.tx, ctm.ty);
 }
 void CFX_QuartzDeviceDriver::SaveState() {
   CGContextSaveGState(m_context);
   m_saveCount++;
 }
@@ skipping 825 matching lines @@
   }
   CFX_DIBitmap* pBitmap = new CFX_DIBitmap;
   if (!pBitmap->Create(width, height, format)) {
     delete pBitmap;
     return FALSE;
   }
   m_bOwnedBitmap = TRUE;
   return Attach(pBitmap);
 }
 #endif  // _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_