Get rid of NULLs in xfa/

xfa/fde/xml/fde_xml_imp.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_FDE_XML_FDE_XML_IMP_H_
 #define XFA_FDE_XML_FDE_XML_IMP_H_
 
 #include "core/fxcrt/include/fx_system.h"
@@ skipping 66 matching lines @@
   virtual void GetTargetName(CFX_WideString& wsTarget) const {
     wsTarget = m_wsTarget;
   }
   virtual int32_t CountAttributes() const;
   virtual FX_BOOL GetAttribute(int32_t index,
                                CFX_WideString& wsAttriName,
                                CFX_WideString& wsAttriValue) const;
   virtual FX_BOOL HasAttribute(const FX_WCHAR* pwsAttriName) const;
   virtual void GetString(const FX_WCHAR* pwsAttriName,
                          CFX_WideString& wsAttriValue,
-                         const FX_WCHAR* pwsDefValue = NULL) const;
+                         const FX_WCHAR* pwsDefValue = nullptr) const;
   virtual void SetString(const CFX_WideString& wsAttriName,
                          const CFX_WideString& wsAttriValue);
   virtual int32_t GetInteger(const FX_WCHAR* pwsAttriName,
                              int32_t iDefValue = 0) const;
   virtual void SetInteger(const FX_WCHAR* pwsAttriName, int32_t iAttriValue);
   virtual FX_FLOAT GetFloat(const FX_WCHAR* pwsAttriName,
                             FX_FLOAT fDefValue = 0) const;
   virtual void SetFloat(const FX_WCHAR* pwsAttriName, FX_FLOAT fAttriValue);
   virtual void RemoveAttribute(const FX_WCHAR* pwsAttriName);
   virtual int32_t CountData() const;
@@ skipping 17 matching lines @@
   virtual void GetLocalTagName(CFX_WideString& wsTag) const;
   virtual void GetNamespacePrefix(CFX_WideString& wsPrefix) const;
   virtual void GetNamespaceURI(CFX_WideString& wsNamespace) const;
   virtual int32_t CountAttributes() const;
   virtual FX_BOOL GetAttribute(int32_t index,
                                CFX_WideString& wsAttriName,
                                CFX_WideString& wsAttriValue) const;
   virtual FX_BOOL HasAttribute(const FX_WCHAR* pwsAttriName) const;
   virtual void GetString(const FX_WCHAR* pwsAttriName,
                          CFX_WideString& wsAttriValue,
-                         const FX_WCHAR* pwsDefValue = NULL) const;
+                         const FX_WCHAR* pwsDefValue = nullptr) const;
   virtual void SetString(const CFX_WideString& wsAttriName,
                          const CFX_WideString& wsAttriValue);
   virtual int32_t GetInteger(const FX_WCHAR* pwsAttriName,
                              int32_t iDefValue = 0) const;
   virtual void SetInteger(const FX_WCHAR* pwsAttriName, int32_t iAttriValue);
   virtual FX_FLOAT GetFloat(const FX_WCHAR* pwsAttriName,
                             FX_FLOAT fDefValue = 0) const;
   virtual void SetFloat(const FX_WCHAR* pwsAttriName, FX_FLOAT fAttriValue);
   virtual void RemoveAttribute(const FX_WCHAR* pwsAttriName);
   virtual void GetTextData(CFX_WideString& wsText) const;
@@ skipping 41 matching lines @@
   CFX_WideString m_wsCharData;
 };
 class CFDE_XMLDoc : public CFX_Target {
  public:
   CFDE_XMLDoc();
   ~CFDE_XMLDoc();
   virtual void Release() { delete this; }
   virtual FX_BOOL LoadXML(IFX_Stream* pXMLStream,
                           int32_t iXMLPlaneSize = 8192,
                           int32_t iTextDataSize = 256,
-                          FDE_XMLREADERHANDLER* pHandler = NULL);
+                          FDE_XMLREADERHANDLER* pHandler = nullptr);
   virtual FX_BOOL LoadXML(CFDE_XMLParser* pXMLParser);
-  virtual int32_t DoLoad(IFX_Pause* pPause = NULL);
+  virtual int32_t DoLoad(IFX_Pause* pPause = nullptr);
   virtual void CloseXML();
   virtual CFDE_XMLNode* GetRoot() const { return m_pRoot; }
-  virtual void SaveXML(IFX_Stream* pXMLStream = NULL, FX_BOOL bSaveBOM = TRUE);
+  virtual void SaveXML(IFX_Stream* pXMLStream = nullptr,
+                       FX_BOOL bSaveBOM = TRUE);
   virtual void SaveXMLNode(IFX_Stream* pXMLStream, CFDE_XMLNode* pNode);
 
  protected:
   IFX_Stream* m_pStream;
   int32_t m_iStatus;
   CFDE_XMLNode* m_pRoot;
   CFDE_XMLSyntaxParser* m_pSyntaxParser;
   CFDE_XMLParser* m_pXMLParser;
   void Reset(FX_BOOL bInitRoot);
   void ReleaseParser();
@@ skipping 171 matching lines @@
   FDE_XmlSyntaxResult m_syntaxParserResult;
   FDE_XmlSyntaxState m_syntaxParserState;
   FX_WCHAR m_wQuotationMark;
   int32_t m_iEntityStart;
   CFX_DWordStack m_SkipStack;
   FX_WCHAR m_SkipChar;
   inline void ParseTextChar(FX_WCHAR ch);
 };
 
 #endif  // XFA_FDE_XML_FDE_XML_IMP_H_