Inflict PPDF_ENABLE_XFA ifdefs on XFA core/

core/src/fxcrt/extension.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_SRC_FXCRT_EXTENSION_H_
 #define CORE_SRC_FXCRT_EXTENSION_H_
 
 #include "core/include/fxcrt/fx_basic.h"
@@ skipping 13 matching lines @@
   virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
   virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
   virtual size_t WritePos(const void* pBuffer,
                           size_t szBuffer,
                           FX_FILESIZE pos) = 0;
   virtual FX_BOOL Flush() = 0;
   virtual FX_BOOL Truncate(FX_FILESIZE szFile) = 0;
 };
 IFXCRT_FileAccess* FXCRT_FileAccess_Create();
 
+#ifdef PDF_ENABLE_XFA
 class CFX_CRTFileAccess : public IFX_FileAccess {
  public:
   CFX_CRTFileAccess() : m_RefCount(0) {}
 
   // IFX_FileAccess
   void Release() override {
     if (--m_RefCount == 0)
       delete this;
   }
 
@@ skipping 12 matching lines @@
     m_path = wsPath;
     m_RefCount = 1;
     return TRUE;
   }
 
  protected:
   CFX_WideString m_path;
   FX_DWORD m_RefCount;
 };
 
+#endif
 class CFX_CRTFileStream final : public IFX_FileStream {
  public:
   CFX_CRTFileStream(IFXCRT_FileAccess* pFA) : m_pFile(pFA), m_dwCount(1) {}
   ~CFX_CRTFileStream() override {
     if (m_pFile) {
       m_pFile->Release();
     }
   }
   virtual IFX_FileStream* Retain() override {
     m_dwCount++;
@@ skipping 265 matching lines @@
 } FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT;
 typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT;
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
 FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount);
 #endif
 #ifdef __cplusplus
 }
 #endif
 
 #endif  // CORE_SRC_FXCRT_EXTENSION_H_