Get rid of NULLs in core/

core/fxge/ge/fx_ge_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/fxge/include/fx_ge.h"
 
 CFX_RenderDevice::CFX_RenderDevice() {
-  m_pDeviceDriver = NULL;
-  m_pBitmap = NULL;
+  m_pDeviceDriver = nullptr;
+  m_pBitmap = nullptr;
 }
 CFX_RenderDevice::~CFX_RenderDevice() {
   delete m_pDeviceDriver;
 }
 void CFX_RenderDevice::SetDeviceDriver(IFX_RenderDeviceDriver* pDriver) {
   delete m_pDeviceDriver;
   m_pDeviceDriver = pDriver;
   InitDeviceInfo();
 }
 void CFX_RenderDevice::InitDeviceInfo() {
@@ skipping 164 matching lines @@
     CFX_PathData newPath;
     FX_BOOL bThin = FALSE;
     if (pPathData->GetZeroAreaPath(newPath, (CFX_Matrix*)pObject2Device, bThin,
                                    m_pDeviceDriver->GetDriverType())) {
       CFX_GraphStateData graphState;
       graphState.m_LineWidth = 0.0f;
       uint32_t strokecolor = fill_color;
       if (bThin) {
         strokecolor = (((fill_alpha >> 2) << 24) | (strokecolor & 0x00ffffff));
       }
-      CFX_Matrix* pMatrix = NULL;
+      CFX_Matrix* pMatrix = nullptr;
       if (pObject2Device && !pObject2Device->IsIdentity()) {
         pMatrix = (CFX_Matrix*)pObject2Device;
       }
       int smooth_path = FX_ZEROAREA_FILL;
       if (fill_mode & FXFILL_NOPATHSMOOTH) {
         smooth_path |= FXFILL_NOPATHSMOOTH;
       }
       m_pDeviceDriver->DrawPath(&newPath, pMatrix, &graphState, 0, strokecolor,
                                 smooth_path, 0, nullptr, blend_type);
     }
@@ skipping 41 matching lines @@
     FX_RECT rect = bbox.GetOutterRect();
     CFX_DIBitmap bitmap, Backdrop;
     if (!CreateCompatibleBitmap(&bitmap, FXSYS_round(rect.Width() * fScaleX),
                                 FXSYS_round(rect.Height() * fScaleY))) {
       return FALSE;
     }
     if (bitmap.HasAlpha()) {
       bitmap.Clear(0);
       Backdrop.Copy(&bitmap);
     } else {
-      if (!m_pDeviceDriver->GetDIBits(&bitmap, rect.left, rect.top, NULL)) {
+      if (!m_pDeviceDriver->GetDIBits(&bitmap, rect.left, rect.top, nullptr)) {
         return FALSE;
       }
       Backdrop.Copy(&bitmap);
     }
     CFX_FxgeDevice bitmap_device;
     bitmap_device.Attach(&bitmap, false, &Backdrop, true);
     CFX_Matrix matrix;
     if (pObject2Device) {
       matrix = *pObject2Device;
     }
@@ skipping 180 matching lines @@
                                       flags, handle, 0, nullptr, blend_mode);
 }
 
 FX_BOOL CFX_RenderDevice::ContinueDIBits(void* handle, IFX_Pause* pPause) {
   return m_pDeviceDriver->ContinueDIBits(handle, pPause);
 }
 
 void CFX_RenderDevice::CancelDIBits(void* handle) {
   m_pDeviceDriver->CancelDIBits(handle);
 }