Remove some objnum locals with AddIndirectObject

core/fpdfdoc/cpdf_interform.cpp

 // 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
 
 #include <vector>
 
 #include "core/fpdfapi/fpdf_font/include/cpdf_font.h"
 #include "core/fpdfapi/fpdf_font/include/cpdf_fontencoding.h"
@@ skipping 41 matching lines @@
              CPDF_Document* pDocument,
              const CPDF_Font* pFont,
              CFX_ByteString& csNameTag);
 
 void InitDict(CPDF_Dictionary*& pFormDict, CPDF_Document* pDocument) {
   if (!pDocument)
     return;
 
   if (!pFormDict) {
     pFormDict = new CPDF_Dictionary;
-    uint32_t dwObjNum = pDocument->AddIndirectObject(pFormDict);
-    CPDF_Dictionary* pRoot = pDocument->GetRoot();
-    pRoot->SetReferenceFor("AcroForm", pDocument, dwObjNum);
+    pDocument->GetRoot()->SetReferenceFor(
+        "AcroForm", pDocument, pDocument->AddIndirectObject(pFormDict));
   }
 
   CFX_ByteString csDA;
   if (!pFormDict->KeyExist("DR")) {
     CFX_ByteString csBaseName;
     CFX_ByteString csDefault;
     uint8_t charSet = CPDF_InterForm::GetNativeCharSet();
     CPDF_Font* pFont = CPDF_InterForm::AddStandardFont(pDocument, "Helvetica");
     if (pFont) {
       AddFont(pFormDict, pDocument, pFont, csBaseName);
@@ skipping 324 matching lines @@
   if (!pFonts) {
     pFonts = new CPDF_Dictionary;
     pDR->SetFor("Font", pFonts);
   }
   if (csNameTag.IsEmpty())
     csNameTag = pFont->GetBaseFont();
 
   csNameTag.Remove(' ');
   csNameTag = CPDF_InterForm::GenerateNewResourceName(pDR, "Font", 4,
                                                       csNameTag.c_str());
-  pFonts->SetReferenceFor(csNameTag, pDocument, pFont->GetFontDict());
+  pFonts->SetReferenceFor(csNameTag, pDocument,
+                          pFont->GetFontDict()->GetObjNum());
 }
 
 CPDF_Font* AddNativeFont(CPDF_Dictionary*& pFormDict,
                          CPDF_Document* pDocument,
                          uint8_t charSet,
                          CFX_ByteString& csNameTag) {
   if (!pFormDict)
     InitDict(pFormDict, pDocument);
 
   CFX_ByteString csTemp;
@@ skipping 1204 matching lines @@
     FDF_ImportField(pField, L"", bNotify);
   }
   if (bNotify && m_pFormNotify)
     m_pFormNotify->AfterFormImportData(this);
   return TRUE;
 }
 
 void CPDF_InterForm::SetFormNotify(IPDF_FormNotify* pNotify) {
   m_pFormNotify = pNotify;
 }