Remove FX_DWORD from core/ and delete definition

core/fpdfdoc/tagged_int.h

 // 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
 
 #ifndef CORE_FPDFDOC_TAGGED_INT_H_
 #define CORE_FPDFDOC_TAGGED_INT_H_
 
 #include <map>
@@ skipping 64 matching lines @@
                      FX_FLOAT default_value,
                      FX_BOOL bInheritable = FALSE,
                      int subindex = -1) override;
   int GetInteger(const CFX_ByteStringC& owner,
                  const CFX_ByteStringC& name,
                  int default_value,
                  FX_BOOL bInheritable = FALSE,
                  int subindex = -1) override;
 
   void LoadKids(CPDF_Dictionary* pDict);
-  void LoadKid(FX_DWORD PageObjNum, CPDF_Object* pObj, CPDF_StructKid* pKid);
+  void LoadKid(uint32_t PageObjNum, CPDF_Object* pObj, CPDF_StructKid* pKid);
   CPDF_Object* GetAttr(const CFX_ByteStringC& owner,
                        const CFX_ByteStringC& name,
                        FX_BOOL bInheritable,
                        int subindex);
   CPDF_StructElementImpl* Retain();
   void Release();
 
  protected:
   ~CPDF_StructElementImpl() override;
 
   CPDF_StructTreeImpl* m_pTree;
   CFX_ByteString m_Type;
   CPDF_StructElementImpl* m_pParent;
   CPDF_Dictionary* m_pDict;
   CFX_ArrayTemplate<CPDF_StructKid> m_Kids;
   int m_RefCount;
 
   friend class CPDF_StructTreeImpl;
 };
 
 #endif  // CORE_FPDFDOC_TAGGED_INT_H_