Get rid of NULLs in xfa/

xfa/fxfa/parser/xfa_script.h

 // 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
 
 #ifndef XFA_FXFA_PARSER_XFA_SCRIPT_H_
 #define XFA_FXFA_PARSER_XFA_SCRIPT_H_
 
 #include "xfa/fxfa/include/fxfa.h"
@@ skipping 21 matching lines @@
   XFA_RESOVENODE_RSTYPE_Nodes,
   XFA_RESOVENODE_RSTYPE_Attribute,
   XFA_RESOLVENODE_RSTYPE_CreateNodeOne,
   XFA_RESOLVENODE_RSTYPE_CreateNodeAll,
   XFA_RESOLVENODE_RSTYPE_CreateNodeMidAll,
   XFA_RESOVENODE_RSTYPE_ExistNodes,
 };
 
 struct XFA_RESOLVENODE_RS {
   XFA_RESOLVENODE_RS()
-      : dwFlags(XFA_RESOVENODE_RSTYPE_Nodes), pScriptAttribute(NULL) {}
+      : dwFlags(XFA_RESOVENODE_RSTYPE_Nodes), pScriptAttribute(nullptr) {}
 
   ~XFA_RESOLVENODE_RS() { nodes.RemoveAll(); }
 
   int32_t GetAttributeResult(CXFA_ValueArray& valueArray) const {
     if (pScriptAttribute && pScriptAttribute->eValueType == XFA_SCRIPT_Object) {
       v8::Isolate* pIsolate = valueArray.m_pIsolate;
       for (int32_t i = 0; i < nodes.GetSize(); i++) {
         std::unique_ptr<CFXJSE_Value> pValue(new CFXJSE_Value(pIsolate));
         (nodes[i]->*(pScriptAttribute->lpfnCallback))(
             pValue.get(), FALSE, (XFA_ATTRIBUTE)pScriptAttribute->eAttribute);
         valueArray.Add(pValue.release());
       }
     }
     return valueArray.GetSize();
   }
 
   CXFA_ObjArray nodes;
   XFA_RESOVENODE_RSTYPE dwFlags;
   const XFA_SCRIPTATTRIBUTEINFO* pScriptAttribute;
 };
 
 #endif  // XFA_FXFA_PARSER_XFA_SCRIPT_H_