Remove NULL in xfa/

xfa/fxfa/app/xfa_ffwidgethandler.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 "xfa/fxfa/include/xfa_ffwidgethandler.h"
 
 #include <vector>
 
@@ skipping 463 matching lines @@
 }
 
 CXFA_Node* CXFA_FFWidgetHandler::CreateSubform(CXFA_Node* pParent,
                                                CXFA_Node* pBefore) const {
   return CreateFormItem(XFA_Element::Subform, pParent, pBefore);
 }
 
 CXFA_Node* CXFA_FFWidgetHandler::CreateFormItem(XFA_Element eElement,
                                                 CXFA_Node* pParent,
                                                 CXFA_Node* pBefore) const {
-  CXFA_Node* pTemplateParent = pParent ? pParent->GetTemplateNode() : NULL;
+  CXFA_Node* pTemplateParent = pParent ? pParent->GetTemplateNode() : nullptr;
   CXFA_Node* pNewFormItem = pTemplateParent->CloneTemplateToForm(FALSE);
   if (pParent)
     pParent->InsertChild(pNewFormItem, pBefore);
   return pNewFormItem;
 }
 
 CXFA_Node* CXFA_FFWidgetHandler::CreateCopyNode(XFA_Element eElement,
                                                 CXFA_Node* pParent,
                                                 CXFA_Node* pBefore) const {
-  CXFA_Node* pTemplateParent = pParent ? pParent->GetTemplateNode() : NULL;
+  CXFA_Node* pTemplateParent = pParent ? pParent->GetTemplateNode() : nullptr;
   CXFA_Node* pNewNode =
       CreateTemplateNode(eElement, pTemplateParent,
-                         pBefore ? pBefore->GetTemplateNode() : NULL)
+                         pBefore ? pBefore->GetTemplateNode() : nullptr)
           ->Clone(FALSE);
   if (pParent)
     pParent->InsertChild(pNewNode, pBefore);
   return pNewNode;
 }
 
 CXFA_Node* CXFA_FFWidgetHandler::CreateTemplateNode(XFA_Element eElement,
                                                     CXFA_Node* pParent,
                                                     CXFA_Node* pBefore) const {
   CXFA_Document* pXFADoc = GetXFADoc();
@@ skipping 37 matching lines @@
 }
 
 CXFA_Document* CXFA_FFWidgetHandler::GetObjFactory() const {
   return GetXFADoc()->GetParser()->GetFactory();
 }
 
 CXFA_Document* CXFA_FFWidgetHandler::GetXFADoc() const {
   return m_pDocView->GetDoc()->GetXFADoc();
 }