Remove FX_DWORD from core/ and delete definition

core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp

Index: core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
diff --git a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
index 0155c43bb8d460c342a4759f48d9ea9fed0d7d71..75730e57542b645d052b710a082f47bdb81285bd 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
@@ -229,13 +229,13 @@ void CPDF_Dictionary::SetAtString(const CFX_ByteStringC& key,
 
 void CPDF_Dictionary::SetAtReference(const CFX_ByteStringC& key,
                                      CPDF_IndirectObjectHolder* pDoc,
-                                     FX_DWORD objnum) {
+                                     uint32_t objnum) {
   SetAt(key, new CPDF_Reference(pDoc, objnum));
 }
 
 void CPDF_Dictionary::AddReference(const CFX_ByteStringC& key,
                                    CPDF_IndirectObjectHolder* pDoc,
-                                   FX_DWORD objnum) {
+                                   uint32_t objnum) {
   SetAt(key, new CPDF_Reference(pDoc, objnum));
 }