Remove FXSYS_Div.

core/src/fxge/agg/src/fx_agg_driver.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/fxge/agg/include/fx_agg_driver.h"
 
 #include <algorithm>
 
@@ skipping 126 matching lines @@
     case CFX_GraphStateData::LineJoinBevel:
       join = agg::bevel_join;
       break;
     default:
       join = agg::miter_join_revert;
       break;
   }
   FX_FLOAT width = pGraphState->m_LineWidth * scale;
   FX_FLOAT unit = 1.f;
   if (pObject2Device) {
-    unit = FXSYS_Div(
-        1.0f, (pObject2Device->GetXUnit() + pObject2Device->GetYUnit()) / 2);
+    unit =
+        1.0f / ((pObject2Device->GetXUnit() + pObject2Device->GetYUnit()) / 2);
   }
   if (width < unit) {
     width = unit;
   }
   if (pGraphState->m_DashArray) {
     typedef agg::conv_dash<agg::path_storage> dash_converter;
     dash_converter dash(path_data);
     for (int i = 0; i < (pGraphState->m_DashCount + 1) / 2; i++) {
       FX_FLOAT on = pGraphState->m_DashArray[i * 2];
       if (on <= 0.000001f) {
@@ skipping 1627 matching lines @@
   IFX_RenderDeviceDriver* pDriver =
       new CFX_AggDeviceDriver(pBitmap, dither_bits, FALSE, pOriDevice, FALSE);
   SetDeviceDriver(pDriver);
   return TRUE;
 }
 CFX_FxgeDevice::~CFX_FxgeDevice() {
   if (m_bOwnedBitmap) {
     delete GetBitmap();
   }
 }