Remove NULL in xfa/

xfa/fgas/font/fgas_font.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_FGAS_FONT_FGAS_FONT_H_
 #define XFA_FGAS_FONT_FGAS_FONT_H_
 
 #include "core/fxge/include/fx_font.h"
@@ skipping 70 matching lines @@
     const CFX_FontDescriptors& fonts);
 FX_LPMatchFont FX_GetDefFontMatchor();
 class IFGAS_FontMgr {
  public:
   static IFGAS_FontMgr* Create(FX_LPEnumAllFonts pEnumerator);
   virtual ~IFGAS_FontMgr() {}
   virtual void Release() = 0;
   virtual CFGAS_GEFont* GetDefFontByCodePage(
       uint16_t wCodePage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByCharset(
       uint8_t nCharset,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByUnicode(
       FX_WCHAR wUnicode,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByLanguage(
       uint16_t wLanguage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily,
                                  uint32_t dwFontStyles,
                                  uint16_t wCodePage = 0xFFFF) = 0;
   virtual CFGAS_GEFont* LoadFont(const uint8_t* pBuffer, int32_t iLength) = 0;
   virtual CFGAS_GEFont* LoadFont(IFX_Stream* pFontStream,
-                                 const FX_WCHAR* pszFontAlias = NULL,
+                                 const FX_WCHAR* pszFontAlias = nullptr,
                                  uint32_t dwFontStyles = 0,
                                  uint16_t wCodePage = 0,
                                  FX_BOOL bSaveStream = FALSE) = 0;
   virtual CFGAS_GEFont* LoadFont(CFGAS_GEFont* pSrcFont,
                                  uint32_t dwFontStyles,
                                  uint16_t wCodePage = 0xFFFF) = 0;
   virtual void ClearFontCache() = 0;
   virtual void RemoveFont(CFGAS_GEFont* pFont) = 0;
 };
 
 #else   //  _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 
 class IFGAS_FontMgr {
  public:
   static IFGAS_FontMgr* Create(CFX_FontSourceEnum_File* pFontEnum);
   virtual ~IFGAS_FontMgr() {}
   virtual void Release() = 0;
   virtual CFGAS_GEFont* GetDefFontByCodePage(
       uint16_t wCodePage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByCharset(
       uint8_t nCharset,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByUnicode(
       FX_WCHAR wUnicode,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetDefFontByLanguage(
       uint16_t wLanguage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetFontByCodePage(
       uint16_t wCodePage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   inline CFGAS_GEFont* LoadFont(const FX_WCHAR* pszFontFamily,
                                 uint32_t dwFontStyles,
                                 uint16_t wCodePage) {
     return GetFontByCodePage(wCodePage, dwFontStyles, pszFontFamily);
   }
   virtual CFGAS_GEFont* GetFontByCharset(
       uint8_t nCharset,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetFontByUnicode(
       FX_WCHAR wUnicode,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual CFGAS_GEFont* GetFontByLanguage(
       uint16_t wLanguage,
       uint32_t dwFontStyles,
-      const FX_WCHAR* pszFontFamily = NULL) = 0;
+      const FX_WCHAR* pszFontFamily = nullptr) = 0;
   virtual void ClearFontCache() = 0;
   virtual void RemoveFont(CFGAS_GEFont* pFont) = 0;
 };
 #endif  //  _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 
 #endif  // XFA_FGAS_FONT_FGAS_FONT_H_