Add type cast definitions for CPDF_Number.

core/src/fpdfapi/fpdf_edit/fpdf_edit_create.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 "../../../include/fxcrt/fx_ext.h"
 #include "../../../include/fpdfapi/fpdf_serial.h"
 #include "../../../include/fpdfapi/fpdf_parser.h"
 #include "editint.h"
@@ skipping 919 matching lines @@
 }
 int32_t CPDF_Creator::WriteIndirectObjectToStream(const CPDF_Object* pObj) {
   if (!m_pXRefStream) {
     return 1;
   }
   FX_DWORD objnum = pObj->GetObjNum();
   if (m_pParser && m_pParser->m_ObjVersion.GetSize() > (int32_t)objnum &&
       m_pParser->m_ObjVersion[objnum] > 0) {
     return 1;
   }
-  if (pObj->GetType() == PDFOBJ_NUMBER) {
+
+  if (pObj->IsNumber())
     return 1;
-  }
+
   CPDF_Dictionary* pDict = pObj->GetDict();
   if (pObj->GetType() == PDFOBJ_STREAM) {
     if (pDict && pDict->GetString(FX_BSTRC("Type")) == FX_BSTRC("XRef")) {
       return 0;
     }
     return 1;
   }
   if (pDict) {
     if (pDict == m_pDocument->m_pRootDict || pDict == m_pEncryptDict) {
       return 1;
@@ skipping 1174 matching lines @@
   m_bNewCrypto = FALSE;
   if (!m_bStandardSecurity) {
     return;
   }
   if (m_pEncryptDict) {
     m_pEncryptDict->Release();
     m_pEncryptDict = NULL;
   }
   m_bStandardSecurity = FALSE;
 }