Remove FXSYS_Div.

core/src/fxcodec/codec/fx_codec_progress.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/include/fxcodec/fx_codec.h"
 #include "core/include/fxge/fx_dib.h"
 #include "core/src/fxcodec/codec/fx_codec_progress.h"
 void CFXCODEC_WeightTable::Calc(int dest_len,
                                 int dest_min,
                                 int dest_max,
                                 int src_len,
                                 int src_min,
                                 int src_max,
                                 FX_BOOL bInterpol) {
   if (m_pWeightTables) {
     FX_Free(m_pWeightTables);
   }
   double scale, base;
-  scale = FXSYS_Div((FX_FLOAT)(src_len), (FX_FLOAT)(dest_len));
+  scale = (FX_FLOAT)src_len / (FX_FLOAT)dest_len;
   if (dest_len < 0) {
     base = (FX_FLOAT)(src_len);
   } else {
     base = 0.0f;
   }
   m_ItemSize =
       (int)(sizeof(int) * 2 +
             sizeof(int) * (FXSYS_ceil(FXSYS_fabs((FX_FLOAT)scale)) + 1));
   m_DestMin = dest_min;
   m_pWeightTables = FX_Alloc(uint8_t, (dest_max - dest_min) * m_ItemSize + 4);
@@ skipping 49 matching lines @@
       end_i = src_max - 1;
     }
     if (start_i > end_i) {
       pixel_weights.m_SrcStart = start_i;
       pixel_weights.m_SrcEnd = start_i;
       continue;
     }
     pixel_weights.m_SrcStart = start_i;
     pixel_weights.m_SrcEnd = end_i;
     for (int j = start_i; j <= end_i; j++) {
-      double dest_start = FXSYS_Div((FX_FLOAT)(j)-base, scale);
-      double dest_end = FXSYS_Div((FX_FLOAT)(j + 1) - base, scale);
+      double dest_start = ((FX_FLOAT)j - base) / scale;
+      double dest_end = ((FX_FLOAT)(j + 1) - base) / scale;
       if (dest_start > dest_end) {
         double temp = dest_start;
         dest_start = dest_end;
         dest_end = temp;
       }
       double area_start = dest_start > (FX_FLOAT)(dest_pixel)
                               ? dest_start
                               : (FX_FLOAT)(dest_pixel);
       double area_end = dest_end > (FX_FLOAT)(dest_pixel + 1)
                             ? (FX_FLOAT)(dest_pixel + 1)
@@ skipping 2183 matching lines @@
       }
     } break;
     default:
       break;
   }
   return FXCODEC_STATUS_ERROR;
 }
 ICodec_ProgressiveDecoder* CCodec_ModuleMgr::CreateProgressiveDecoder() {
   return new CCodec_ProgressiveDecoder(this);
 }