Move fx_safe_types.h to include/ directory.

core/include/fxcrt/fx_safe_types.h

Index: core/include/fxcrt/fx_safe_types.h
diff --git a/core/src/fxcrt/fx_safe_types.h b/core/include/fxcrt/fx_safe_types.h
similarity index 71%
rename from core/src/fxcrt/fx_safe_types.h
rename to core/include/fxcrt/fx_safe_types.h
index 35a906cf27581d25468771da13743f143872ac7f..e45e6d3c8de7b0032e6c07759dd2e52b9191a259 100644
--- a/core/src/fxcrt/fx_safe_types.h
+++ b/core/include/fxcrt/fx_safe_types.h
@@ -2,16 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
-#define CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
+#ifndef CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_
+#define CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_
 
 #include <stdlib.h>  // For size_t.
 
 #include "../../../third_party/base/numerics/safe_math.h"
+#include "fx_stream.h"  // for FX_FILESIZE.
+#include "fx_system.h"
 
 typedef pdfium::base::CheckedNumeric<FX_DWORD> FX_SAFE_DWORD;
 typedef pdfium::base::CheckedNumeric<FX_INT32> FX_SAFE_INT32;
 typedef pdfium::base::CheckedNumeric<size_t> FX_SAFE_SIZE_T;
 typedef pdfium::base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE;
 
-#endif  // CORE_SRC_FXCRT_FX_SAFE_TYPES_H_
+#endif  // CORE_INCLUDE_FXCRT_FX_SAFE_TYPES_H_