Remove FXSYS_Mul.

core/src/fpdfapi/fpdf_page/fpdf_page.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/src/fpdfapi/fpdf_page/pageint.h"
 
 #include <algorithm>
 
@@ skipping 228 matching lines @@
   CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
   if (pCIDFont) {
     bVertWriting = pCIDFont->IsVertWriting();
   }
   FX_FLOAT fontsize = m_TextState.GetFontSize();
   for (int i = 0; i < m_nChars; ++i) {
     FX_DWORD charcode =
         m_nChars == 1 ? (FX_DWORD)(uintptr_t)m_pCharCodes : m_pCharCodes[i];
     if (i > 0) {
       if (charcode == (FX_DWORD)-1) {
-        curpos -= FXSYS_Mul(m_pCharPos[i - 1], fontsize) / 1000;
+        curpos -= (m_pCharPos[i - 1] * fontsize) / 1000;
         continue;
       }
       m_pCharPos[i - 1] = curpos;
     }
     FX_RECT char_rect;
     pFont->GetCharBBox(charcode, char_rect, level);
     FX_FLOAT charwidth;
     if (!bVertWriting) {
       if (min_y > char_rect.top) {
         min_y = (FX_FLOAT)char_rect.top;
@@ skipping 69 matching lines @@
     if (pTextAdvanceX) {
       *pTextAdvanceX = 0;
     }
     if (pTextAdvanceY) {
       *pTextAdvanceY = curpos;
     }
     min_x = min_x * fontsize / 1000;
     max_x = max_x * fontsize / 1000;
   } else {
     if (pTextAdvanceX) {
-      *pTextAdvanceX = FXSYS_Mul(curpos, horz_scale);
+      *pTextAdvanceX = curpos * horz_scale;
     }
     if (pTextAdvanceY) {
       *pTextAdvanceY = 0;
     }
     min_y = min_y * fontsize / 1000;
     max_y = max_y * fontsize / 1000;
   }
   CFX_Matrix matrix;
   GetTextMatrix(&matrix);
   m_Left = min_x;
@@ skipping 410 matching lines @@
   matrix = m_PageMatrix;
   matrix.Concat(display_matrix);
 }
 
 CPDF_ParseOptions::CPDF_ParseOptions() {
   m_bTextOnly = FALSE;
   m_bMarkedContent = TRUE;
   m_bSeparateForm = TRUE;
   m_bDecodeInlineImage = FALSE;
 }