Remove FXSYS_Mul.

core/src/fxge/dib/fx_dib_engine.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 <limits.h>
 
 #include "core/include/fxge/fx_dib.h"
 #include "core/include/fxge/fx_ge.h"
@@ skipping 256 matching lines @@
   } else {
     m_Flags = FXDIB_NOSMOOTH;
     if (flags & FXDIB_DOWNSAMPLE) {
       m_Flags |= FXDIB_DOWNSAMPLE;
     }
   }
   double scale_x = FXSYS_Div((FX_FLOAT)(m_SrcWidth), (FX_FLOAT)(m_DestWidth));
   double scale_y = FXSYS_Div((FX_FLOAT)(m_SrcHeight), (FX_FLOAT)(m_DestHeight));
   double base_x = m_DestWidth > 0 ? 0.0f : (FX_FLOAT)(m_DestWidth);
   double base_y = m_DestHeight > 0 ? 0.0f : (FX_FLOAT)(m_DestHeight);
-  double src_left = FXSYS_Mul(scale_x, (FX_FLOAT)(clip_rect.left) + base_x);
-  double src_right = FXSYS_Mul(scale_x, (FX_FLOAT)(clip_rect.right) + base_x);
-  double src_top = FXSYS_Mul(scale_y, (FX_FLOAT)(clip_rect.top) + base_y);
-  double src_bottom = FXSYS_Mul(scale_y, (FX_FLOAT)(clip_rect.bottom) + base_y);
+  double src_left = scale_x * ((FX_FLOAT)(clip_rect.left) + base_x);
+  double src_right = scale_x * ((FX_FLOAT)(clip_rect.right) + base_x);
+  double src_top = scale_y * ((FX_FLOAT)(clip_rect.top) + base_y);
+  double src_bottom = scale_y * ((FX_FLOAT)(clip_rect.bottom) + base_y);
   if (src_left > src_right) {
     double temp = src_left;
     src_left = src_right;
     src_right = temp;
   }
   if (src_top > src_bottom) {
     double temp = src_top;
     src_top = src_bottom;
     src_bottom = temp;
   }
@@ skipping 617 matching lines @@
                                   m_bFlipX, m_ClipRect.left, result_width);
     if (m_pMaskScanline) {
       m_pSource->m_pAlphaMask->DownSampleScanline(
           src_y, m_pMaskScanline, 1, m_DestWidth, m_bFlipX, m_ClipRect.left,
           result_width);
     }
     m_pDest->ComposeScanline(dest_y, m_pScanline, m_pMaskScanline);
   }
   return FALSE;
 }