Remove FX_DWORD from core/ and delete definition

core/fdrm/crypto/fx_crypt_aes.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/fdrm/crypto/include/fx_crypt.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ skipping 786 matching lines @@
     for (i = 0; i < 4; i++) {
       PUT_32BIT_MSB_FIRST(dest + 4 * i, iv[i]);
     }
     dest += 16;
     src += 16;
     len -= 16;
   }
   FXSYS_memcpy(ctx->iv, iv, sizeof(iv));
 }
 void CRYPT_AESSetKey(void* context,
-                     FX_DWORD blocklen,
+                     uint32_t blocklen,
                      const uint8_t* key,
-                     FX_DWORD keylen,
+                     uint32_t keylen,
                      FX_BOOL bEncrypt) {
   aes_setup((AESContext*)context, blocklen, key, keylen);
 }
 void CRYPT_AESSetIV(void* context, const uint8_t* iv) {
   int i;
   for (i = 0; i < ((AESContext*)context)->Nb; i++) {
     ((AESContext*)context)->iv[i] = GET_32BIT_MSB_FIRST(iv + 4 * i);
   }
 }
 void CRYPT_AESDecrypt(void* context,
                       uint8_t* dest,
                       const uint8_t* src,
-                      FX_DWORD len) {
+                      uint32_t len) {
   aes_decrypt_cbc(dest, src, len, (AESContext*)context);
 }
 void CRYPT_AESEncrypt(void* context,
                       uint8_t* dest,
                       const uint8_t* src,
-                      FX_DWORD len) {
+                      uint32_t len) {
   aes_encrypt_cbc(dest, src, len, (AESContext*)context);
 }
 #ifdef __cplusplus
 };
 #endif