Get rid of NULLs in fpdfsdk/

fpdfsdk/fpdf_flatten.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 "public/fpdf_flatten.h"
 
 #include <algorithm>
 
@@ skipping 176 matching lines @@
                      CPDF_Dictionary* pPage,
                      CPDF_Document* pDocument) {
   CPDF_Object* pContentsObj = pPage->GetStreamBy("Contents");
   if (!pContentsObj) {
     pContentsObj = pPage->GetArrayBy("Contents");
   }
 
   if (!pContentsObj) {
     // Create a new contents dictionary
     if (!key.IsEmpty()) {
-      CPDF_Stream* pNewContents = new CPDF_Stream(NULL, 0, new CPDF_Dictionary);
+      CPDF_Stream* pNewContents =
+          new CPDF_Stream(nullptr, 0, new CPDF_Dictionary);
       pPage->SetAtReference("Contents", pDocument,
                             pDocument->AddIndirectObject(pNewContents));
 
       CFX_ByteString sStream;
       sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", key.c_str());
       pNewContents->SetData(sStream.raw_str(), sStream.GetLength(), FALSE,
                             FALSE);
     }
     return;
   }
 
-  CPDF_Array* pContentsArray = NULL;
+  CPDF_Array* pContentsArray = nullptr;
 
   switch (pContentsObj->GetType()) {
     case CPDF_Object::STREAM: {
       pContentsArray = new CPDF_Array;
       CPDF_Stream* pContents = pContentsObj->AsStream();
       uint32_t dwObjNum = pDocument->AddIndirectObject(pContents);
       CPDF_StreamAcc acc;
       acc.LoadAllData(pContents);
       CFX_ByteString sStream = "q\n";
       CFX_ByteString sBody =
@@ skipping 12 matching lines @@
       break;
   }
 
   if (!pContentsArray)
     return;
 
   uint32_t dwObjNum = pDocument->AddIndirectObject(pContentsArray);
   pPage->SetAtReference("Contents", pDocument, dwObjNum);
 
   if (!key.IsEmpty()) {
-    CPDF_Stream* pNewContents = new CPDF_Stream(NULL, 0, new CPDF_Dictionary);
+    CPDF_Stream* pNewContents =
+        new CPDF_Stream(nullptr, 0, new CPDF_Dictionary);
     dwObjNum = pDocument->AddIndirectObject(pNewContents);
     pContentsArray->AddReference(pDocument, dwObjNum);
 
     CFX_ByteString sStream;
     sStream.Format("q 1 0 0 1 0 0 cm /%s Do Q", key.c_str());
     pNewContents->SetData(sStream.raw_str(), sStream.GetLength(), FALSE, FALSE);
   }
 }
 
 CFX_Matrix GetMatrix(CFX_FloatRect rcAnnot,
@@ skipping 116 matching lines @@
     pCropBox->Add(new CPDF_Number(rcOriginalCB.top));
     pPageDict->SetAt("ArtBox", pCropBox);
   }
 
   CPDF_Dictionary* pRes = pPageDict->GetDictBy("Resources");
   if (!pRes) {
     pRes = new CPDF_Dictionary;
     pPageDict->SetAt("Resources", pRes);
   }
 
-  CPDF_Stream* pNewXObject = new CPDF_Stream(NULL, 0, new CPDF_Dictionary);
+  CPDF_Stream* pNewXObject = new CPDF_Stream(nullptr, 0, new CPDF_Dictionary);
   uint32_t dwObjNum = pDocument->AddIndirectObject(pNewXObject);
   CPDF_Dictionary* pPageXObject = pRes->GetDictBy("XObject");
   if (!pPageXObject) {
     pPageXObject = new CPDF_Dictionary;
     pRes->SetAt("XObject", pPageXObject);
   }
 
   CFX_ByteString key = "";
   int nStreams = ObjectArray.GetSize();
 
   if (nStreams > 0) {
     for (int iKey = 0; /*iKey < 100*/; iKey++) {
       char sExtend[5] = {};
       FXSYS_itoa(iKey, sExtend, 10);
       key = CFX_ByteString("FFT") + CFX_ByteString(sExtend);
       if (!pPageXObject->KeyExist(key))
         break;
     }
   }
 
   SetPageContents(key, pPageDict, pDocument);
 
-  CPDF_Dictionary* pNewXORes = NULL;
+  CPDF_Dictionary* pNewXORes = nullptr;
 
   if (!key.IsEmpty()) {
     pPageXObject->SetAtReference(key, pDocument, dwObjNum);
     CPDF_Dictionary* pNewOXbjectDic = pNewXObject->GetDict();
     pNewXORes = new CPDF_Dictionary;
     pNewOXbjectDic->SetAt("Resources", pNewXORes);
     pNewOXbjectDic->SetAtName("Type", "XObject");
     pNewOXbjectDic->SetAtName("Subtype", "Form");
     pNewOXbjectDic->SetAtInteger("FormType", 1);
     pNewOXbjectDic->SetAtName("Name", "FRM");
@@ skipping 94 matching lines @@
     sStream += sTemp;
     pNewXObject->SetData(sStream.raw_str(), sStream.GetLength(), FALSE, FALSE);
   }
   pPageDict->RemoveAt("Annots");
 
   ObjectArray.RemoveAll();
   RectArray.RemoveAll();
 
   return FLATTEN_SUCCESS;
 }