Remove the FX_MIN macro.

core/src/fxcodec/codec/fx_codec_flate.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 "codec_int.h"
 
+#include <algorithm>
 #include <memory>
 
 #include "core/include/fxcodec/fx_codec.h"
 #include "core/include/fxcodec/fx_codec_flate.h"
 #include "third_party/zlib_v128/zlib.h"
 
 extern "C" {
 static void* my_alloc_func(void* opaque,
                            unsigned int items,
                            unsigned int size) {
@@ skipping 539 matching lines @@
   }
   return TRUE;
 }
 
 void TIFF_PredictLine(uint8_t* dest_buf,
                       FX_DWORD row_size,
                       int BitsPerComponent,
                       int Colors,
                       int Columns) {
   if (BitsPerComponent == 1) {
-    int row_bits = FX_MIN(BitsPerComponent * Colors * Columns, row_size * 8);
+    int row_bits = std::min(BitsPerComponent * Colors * Columns,
+                            pdfium::base::checked_cast<int>(row_size * 8));
     int index_pre = 0;
     int col_pre = 0;
     for (int i = 1; i < row_bits; i++) {
       int col = i % 8;
       int index = i / 8;
       if (((dest_buf[index] >> (7 - col)) & 1) ^
           ((dest_buf[index_pre] >> (7 - col_pre)) & 1)) {
         dest_buf[index] |= 1 << (7 - col);
       } else {
         dest_buf[index] &= ~(1 << (7 - col));
@@ skipping 417 matching lines @@
                                    FX_DWORD src_size,
                                    uint8_t*& dest_buf,
                                    FX_DWORD& dest_size) {
   dest_size = src_size + src_size / 1000 + 12;
   dest_buf = FX_Alloc(uint8_t, dest_size);
   unsigned long temp_size = dest_size;
   FPDFAPI_FlateCompress(dest_buf, &temp_size, src_buf, src_size);
   dest_size = (FX_DWORD)temp_size;
   return TRUE;
 }