core/ difference with XFA (for information only).

core/include/fxcrt/fx_ext.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_INCLUDE_FXCRT_FX_EXT_H_
 #define CORE_INCLUDE_FXCRT_FX_EXT_H_
 
+#ifdef PDF_ENABLE_XFA
+#include "fx_string.h"
+#endif
 #include "fx_system.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 FX_FLOAT FXSYS_tan(FX_FLOAT a);
 FX_FLOAT FXSYS_logb(FX_FLOAT b, FX_FLOAT x);
 FX_FLOAT FXSYS_strtof(const FX_CHAR* pcsStr,
                       int32_t iLength = -1,
@@ skipping 39 matching lines @@
 void FX_Random_MT_Close(void* pContext);
 
 void FX_Random_GenerateBase(FX_DWORD* pBuffer, int32_t iCount);
 
 void FX_Random_GenerateMT(FX_DWORD* pBuffer, int32_t iCount);
 
 void FX_Random_GenerateCrypto(FX_DWORD* pBuffer, int32_t iCount);
 #ifdef __cplusplus
 }
 #endif
+#ifdef PDF_ENABLE_XFA
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct FX_GUID {
+  FX_DWORD data1;
+  FX_WORD data2;
+  FX_WORD data3;
+  uint8_t data4[8];
+} FX_GUID, *FX_LPGUID;
+typedef FX_GUID const* FX_LPCGUID;
+
+void FX_GUID_CreateV4(FX_LPGUID pGUID);
+
+void FX_GUID_ToString(FX_LPCGUID pGUID,
+                      CFX_ByteString& bsStr,
+                      FX_BOOL bSeparator = TRUE);
+#ifdef __cplusplus
+}
+#endif
+#endif
 template <class baseType>
 class CFX_SSortTemplate {
  public:
   void ShellSort(baseType* pArray, int32_t iCount) {
     FXSYS_assert(pArray != NULL && iCount > 0);
     int32_t i, j, gap;
     baseType v1, v2;
     gap = iCount >> 1;
     while (gap > 0) {
       for (i = gap; i < iCount; i++) {
         j = i - gap;
         v1 = pArray[i];
         while (j > -1 && (v2 = pArray[j]) > v1) {
           pArray[j + gap] = v2;
           j -= gap;
         }
         pArray[j + gap] = v1;
       }
       gap >>= 1;
     }
   }
 };
 
 #endif  // CORE_INCLUDE_FXCRT_FX_EXT_H_