Convert border style defines to an enum class.

core/fxcodec/codec/fx_codec_fax.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 "core/fxcodec/codec/codec_int.h"
 #include "core/fxcodec/include/fx_codec.h"
 
 namespace {
@@ skipping 114 matching lines @@
     dest_buf[last_byte] -= 1 << (7 - i);
   }
   if (last_byte > first_byte + 1) {
     FXSYS_memset(dest_buf + first_byte + 1, 0, last_byte - first_byte - 1);
   }
 }
 
 #define NEXTBIT                                  \
   src_buf[bitpos / 8] & (1 << (7 - bitpos % 8)); \
   bitpos++;
-#define ADDBIT(code, bit) \

[Tom Sepez, 2016/05/16 18:17:55]

unrelated change, but ok.

-  code = code << 1;       \
-  if (bit)                \
-    code++;
-#define GETBIT(bitpos) src_buf[bitpos / 8] & (1 << (7 - bitpos % 8))
 
 const uint8_t FaxBlackRunIns[] = {
     0,          2,          0x02,       3,          0,          0x03,
     2,          0,          2,          0x02,       1,          0,
     0x03,       4,          0,          2,          0x02,       6,
     0,          0x03,       5,          0,          1,          0x03,
     7,          0,          2,          0x04,       9,          0,
     0x05,       8,          0,          3,          0x04,       10,
     0,          0x05,       11,         0,          0x07,       12,
     0,          2,          0x04,       13,         0,          0x07,
@@ skipping 669 matching lines @@
     FX_BOOL EndOfLine,
     FX_BOOL EncodedByteAlign,
     FX_BOOL BlackIs1,
     int Columns,
     int Rows) {
   CCodec_FaxDecoder* pDecoder = new CCodec_FaxDecoder;
   pDecoder->Create(src_buf, src_size, width, height, K, EndOfLine,
                    EncodedByteAlign, BlackIs1, Columns, Rows);
   return pDecoder;
 }