Remove FX_DWORD from core/ and delete definition

core/fpdfapi/fpdf_font/cpdf_type1font.h

 // Copyright 2016 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
 
 #ifndef CORE_FPDFAPI_FPDF_FONT_CPDF_TYPE1FONT_H_
 #define CORE_FPDFAPI_FPDF_FONT_CPDF_TYPE1FONT_H_
 
 #include "core/fpdfapi/fpdf_font/cpdf_simplefont.h"
 #include "core/fxcrt/include/fx_system.h"
 
 class CPDF_Type1Font : public CPDF_SimpleFont {
  public:
   CPDF_Type1Font();
 
   // CPDF_Font:
   bool IsType1Font() const override;
   const CPDF_Type1Font* AsType1Font() const override;
   CPDF_Type1Font* AsType1Font() override;
-  int GlyphFromCharCodeExt(FX_DWORD charcode) override;
+  int GlyphFromCharCodeExt(uint32_t charcode) override;
 
   int GetBase14Font() const { return m_Base14Font; }
 
  protected:
   // CPDF_Font:
   FX_BOOL Load() override;
 
   // CPDF_SimpleFont:
   void LoadGlyphMap() override;
 
   int m_Base14Font;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_FONT_CPDF_TYPE1FONT_H_