Fix XFA build after combining PDFium into Chromium binary.

core/src/fxcodec/fx_lpng/lpng_v163/png.h

 
 /* png.h - header file for PNG reference library
  *
  * libpng version 1.6.3 - July 18, 2013
  * Copyright (c) 1998-2013 Glenn Randers-Pehrson
  * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
  * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
  *
  * This code is released under the libpng license (See LICENSE, below)
  *
@@ skipping 588 matching lines @@
 #define png_get_y_pixels_per_inch FOXIT_png_get_y_pixels_per_inch
 #define png_get_x_offset_inches FOXIT_png_get_x_offset_inches
 #define png_get_x_offset_inches_fixed FOXIT_png_get_x_offset_inches_fixed
 #define png_get_y_offset_inches FOXIT_png_get_y_offset_inches
 #define png_get_y_offset_inches_fixed FOXIT_png_get_y_offset_inches_fixed
 #define png_get_pHYs_dpi FOXIT_png_get_pHYs_dpi
 #define png_get_io_state FOXIT_png_get_io_state
 #define png_get_io_chunk_name FOXIT_png_get_io_chunk_name
 #define png_get_io_chunk_type FOXIT_png_get_io_chunk_type
 #define png_get_uint_31 FOXIT_png_get_uint_31
+#define png_get_uint_32 FOXIT_png_get_uint_32
+#define png_get_uint_16 FOXIT_png_get_uint_16
+#define png_get_int_32 FOXIT_png_get_int_32
 #define png_save_uint_32 FOXIT_png_save_uint_32
 #define png_save_int_32 FOXIT_png_save_int_32
 #define png_save_uint_16 FOXIT_png_save_uint_16
 #define png_image_begin_read_from_file FOXIT_png_image_begin_read_from_file
 #define png_image_begin_read_from_stdio FOXIT_png_image_begin_read_from_stdio
 #define png_image_begin_read_from_memory FOXIT_png_image_begin_read_from_memory
 #define png_image_finish_read FOXIT_png_image_finish_read
 #define png_image_free FOXIT_png_image_free
 #define png_image_write_to_file FOXIT_png_image_write_to_file
 #define png_image_write_to_stdio FOXIT_png_image_write_to_stdio
@@ skipping 2935 matching lines @@
   PNG_EXPORT_LAST_ORDINAL(244);
 #endif
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif /* PNG_VERSION_INFO_ONLY */
 /* Do not put anything past this line */
 #endif /* PNG_H */