XFA: Fix DOS newlines, final round.

core/src/fxcodec/lgif/fx_gif.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
 
 #include <setjmp.h>
 
 #include "core/include/fxcrt/fx_basic.h"
 
@@ skipping 312 matching lines @@
                               uint8_t** avial_buf_ptr);
 void interlace_buf(const uint8_t* buf, FX_DWORD width, FX_DWORD height);
 FX_BOOL _gif_encode(gif_compress_struct_p gif_ptr,
                     uint8_t*& dst_buf,
                     FX_DWORD& dst_len);
 #define GIF_PTR_NOT_NULL(ptr, gif_ptr)    \
   if (ptr == NULL) {                      \
     _gif_error(gif_ptr, "Out Of Memory"); \
     return 0;                             \
   }