Banish CFX_PrivateData to the XFA side

core/fxcrt/include/fx_basic.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 CORE_FXCRT_INCLUDE_FX_BASIC_H_
 #define CORE_FXCRT_INCLUDE_FX_BASIC_H_
 
 #include <algorithm>
@@ skipping 600 matching lines @@
   CNode* m_pNodeFree;
   struct CFX_Plex* m_pBlocks;
   int m_nBlockSize;
 
   CNode* NewNode(CNode* pPrev, CNode* pNext);
   void FreeNode(CNode* pNode);
 
  public:
   ~CFX_PtrList();
 };
+
+#ifdef PDF_ENABLE_XFA
 typedef void (*PD_CALLBACK_FREEDATA)(void* pData);
-
 struct FX_PRIVATEDATA {
   void FreeData();
 
   void* m_pModuleId;
   void* m_pData;
   PD_CALLBACK_FREEDATA m_pCallback;
   FX_BOOL m_bSelfDestruct;
 };
 
 class CFX_PrivateData {
@@ skipping 26 matching lines @@
   FX_BOOL RemovePrivateData(void* module_id);
 
  protected:
   CFX_ArrayTemplate<FX_PRIVATEDATA> m_DataList;
 
   void AddData(void* module_id,
                void* pData,
                PD_CALLBACK_FREEDATA callback,
                FX_BOOL bSelfDestruct);
 };
+#endif  // PDF_ENABLE_XFA
 
 class CFX_BitStream {
  public:
   void Init(const uint8_t* pData, uint32_t dwSize);
 
   uint32_t GetBits(uint32_t nBits);
 
   void ByteAlign();
 
   FX_BOOL IsEOF() { return m_BitPos >= m_BitSize; }
@@ skipping 291 matching lines @@
   FX_FLOAT e;
   FX_FLOAT f;
   FX_FLOAT g;
   FX_FLOAT h;
   FX_FLOAT i;
 };
 
 uint32_t GetBits32(const uint8_t* pData, int bitpos, int nbits);
 
 #endif  // CORE_FXCRT_INCLUDE_FX_BASIC_H_