Get rid of NULLs in fpdfsdk/

fpdfsdk/pdfwindow/PWL_Utils.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_Utils.h"
 
 #include <algorithm>
 
@@ skipping 1204 matching lines @@
                     (int32_t)(dBlue * 255));
 }
 
 void CPWL_Utils::DrawFillRect(CFX_RenderDevice* pDevice,
                               CFX_Matrix* pUser2Device,
                               const CFX_FloatRect& rect,
                               const FX_COLORREF& color) {
   CFX_PathData path;
   CFX_FloatRect rcTemp(rect);
   path.AppendRect(rcTemp.left, rcTemp.bottom, rcTemp.right, rcTemp.top);
-  pDevice->DrawPath(&path, pUser2Device, NULL, color, 0, FXFILL_WINDING);
+  pDevice->DrawPath(&path, pUser2Device, nullptr, color, 0, FXFILL_WINDING);
 }
 
 void CPWL_Utils::DrawFillArea(CFX_RenderDevice* pDevice,
                               CFX_Matrix* pUser2Device,
                               const CFX_FloatPoint* pPts,
                               int32_t nCount,
                               const FX_COLORREF& color) {
   CFX_PathData path;
   path.SetPointCount(nCount);
 
   path.SetPoint(0, pPts[0].x, pPts[0].y, FXPT_MOVETO);
   for (int32_t i = 1; i < nCount; i++)
     path.SetPoint(i, pPts[i].x, pPts[i].y, FXPT_LINETO);
 
-  pDevice->DrawPath(&path, pUser2Device, NULL, color, 0, FXFILL_ALTERNATE);
+  pDevice->DrawPath(&path, pUser2Device, nullptr, color, 0, FXFILL_ALTERNATE);
 }
 
 void CPWL_Utils::DrawStrokeRect(CFX_RenderDevice* pDevice,
                                 CFX_Matrix* pUser2Device,
                                 const CFX_FloatRect& rect,
                                 const FX_COLORREF& color,
                                 FX_FLOAT fWidth) {
   CFX_PathData path;
   CFX_FloatRect rcTemp(rect);
   path.AppendRect(rcTemp.left, rcTemp.bottom, rcTemp.right, rcTemp.top);
@@ skipping 82 matching lines @@
   if (fWidth > 0.0f) {
     FX_FLOAT fHalfWidth = fWidth / 2.0f;
 
     switch (nStyle) {
       default:
       case BorderStyle::SOLID: {
         CFX_PathData path;
         path.AppendRect(fLeft, fBottom, fRight, fTop);
         path.AppendRect(fLeft + fWidth, fBottom + fWidth, fRight - fWidth,
                         fTop - fWidth);
-        pDevice->DrawPath(&path, pUser2Device, NULL,
+        pDevice->DrawPath(&path, pUser2Device, nullptr,
                           PWLColorToFXColor(color, nTransparancy), 0,
                           FXFILL_ALTERNATE);
         break;
       }
       case BorderStyle::DASH: {
         CFX_PathData path;
 
         path.SetPointCount(5);
         path.SetPoint(0, fLeft + fWidth / 2.0f, fBottom + fWidth / 2.0f,
                       FXPT_MOVETO);
@@ skipping 1993 matching lines @@
           break;
         case COLORTYPE_RGB:
           CPWL_Utils::ConvertCMYK2RGB(fColor1, fColor2, fColor3, fColor4,
                                       fColor1, fColor2, fColor3);
           break;
       }
       break;
   }
   nColorType = other_nColorType;
 }