Sort headers in non-xfa directories.

core/src/fxcrt/fx_basic_gcc.cpp

 // 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
 
-#include <limits>
 #include <cctype>
 #include <cwctype>
+#include <limits>
 
 #include "core/include/fxcrt/fx_ext.h"
 #include "core/include/fxcrt/fx_string.h"
 
 template <class T>
 T FXSYS_StrToInt(const FX_CHAR* str) {
   FX_BOOL neg = FALSE;
   if (!str)
     return 0;
 
@@ skipping 231 matching lines @@
       buf[wlen] = bstr[i];
     }
     wlen++;
   }
   return wlen;
 }
 #ifdef __cplusplus
 }
 #endif
 #endif