Sort includes in xfa/.

xfa/src/fgas/include/fx_alg.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_SRC_FGAS_INCLUDE_FX_ALG_H_
 #define XFA_SRC_FGAS_INCLUDE_FX_ALG_H_
 
+#include <cstdint>
+
+#include "core/include/fxcrt/fx_basic.h"
+
 #define FX_IsOdd(a) ((a)&1)
+
 #ifdef __cplusplus
 extern "C" {
 #endif
+
 int32_t FX_Base64EncodeA(const uint8_t* pSrc, int32_t iSrcLen, FX_CHAR* pDst);
 int32_t FX_Base64DecodeA(const FX_CHAR* pSrc, int32_t iSrcLen, uint8_t* pDst);
 int32_t FX_Base64DecodeW(const FX_WCHAR* pSrc, int32_t iSrcLen, uint8_t* pDst);
 uint8_t FX_Hex2Dec(uint8_t hexHigh, uint8_t hexLow);
 int32_t FX_SeparateStringW(const FX_WCHAR* pStr,
                            int32_t iStrLen,
                            FX_WCHAR delimiter,
                            CFX_WideStringArray& pieces);
 #ifdef __cplusplus
 };
 #endif
+
 template <class baseType>
 class CFX_DSPATemplate {
  public:
   int32_t Lookup(const baseType& find, const baseType* pArray, int32_t iCount) {
     FXSYS_assert(pArray != NULL);
     if (iCount < 1) {
       return -1;
     }
     int32_t iStart = 0, iEnd = iCount - 1, iMid;
     do {
       iMid = (iStart + iEnd) / 2;
       const baseType& v = pArray[iMid];
       if (find == v) {
         return iMid;
       } else if (find < v) {
         iEnd = iMid - 1;
       } else {
         iStart = iMid + 1;
       }
     } while (iStart <= iEnd);
     return -1;
   }
 };
 
 #endif  // XFA_SRC_FGAS_INCLUDE_FX_ALG_H_