Remove FX_DWORD from core/ and delete definition

core/fxcrt/fx_arabic.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/fxcrt/fx_arabic.h"
 #include "core/fxcrt/include/fx_ucd.h"
 
 namespace {
@@ skipping 131 matching lines @@
       return v.wIsolated;
     }
   }
   return shadda;
 }
 
 IFX_ArabicChar* IFX_ArabicChar::Create() {
   return new CFX_ArabicChar;
 }
 FX_BOOL CFX_ArabicChar::IsArabicChar(FX_WCHAR wch) const {
-  FX_DWORD dwRet =
+  uint32_t dwRet =
       kTextLayoutCodeProperties[(uint16_t)wch] & FX_CHARTYPEBITSMASK;
   return dwRet >= FX_CHARTYPE_ArabicAlef;
 }
 FX_BOOL CFX_ArabicChar::IsArabicFormChar(FX_WCHAR wch) const {
   return (kTextLayoutCodeProperties[(uint16_t)wch] & FX_CHARTYPEBITSMASK) ==
          FX_CHARTYPE_ArabicForm;
 }
 FX_WCHAR CFX_ArabicChar::GetFormChar(FX_WCHAR wch,
                                      FX_WCHAR prev,
                                      FX_WCHAR next) const {
@@ skipping 798 matching lines @@
   }
 };
 void FX_BidiLine(CFX_TxtCharArray& chars, int32_t iCount, int32_t iBaseLevel) {
   CFX_BidiLineTemplate<CFX_TxtChar> blt;
   blt.FX_BidiLine(chars, iCount, iBaseLevel);
 }
 void FX_BidiLine(CFX_RTFCharArray& chars, int32_t iCount, int32_t iBaseLevel) {
   CFX_BidiLineTemplate<CFX_RTFChar> blt;
   blt.FX_BidiLine(chars, iCount, iBaseLevel);
 }