Remove some objnum locals with AddIndirectObject

core/fpdfdoc/cpvt_fontmap.cpp

Index: core/fpdfdoc/cpvt_fontmap.cpp
diff --git a/core/fpdfdoc/cpvt_fontmap.cpp b/core/fpdfdoc/cpvt_fontmap.cpp
index 7eff694d81e98b3c393d1a6473c310978afdfd86..eb209664fdce0e453a903b619b435c8edf8ae5f5 100644
--- a/core/fpdfdoc/cpvt_fontmap.cpp
+++ b/core/fpdfdoc/cpvt_fontmap.cpp
@@ -37,9 +37,10 @@ void CPVT_FontMap::GetAnnotSysPDFFont(CPDF_Document* pDoc,
   if (!pPDFFont)
     return;
 
-  if (CPDF_Dictionary* pFontList = pResDict->GetDictFor("Font")) {
-    if (!pFontList->KeyExist(sSysFontAlias))
-      pFontList->SetReferenceFor(sSysFontAlias, pDoc, pPDFFont->GetFontDict());
+  CPDF_Dictionary* pFontList = pResDict->GetDictFor("Font");
+  if (pFontList && !pFontList->KeyExist(sSysFontAlias)) {
+    pFontList->SetReferenceFor(sSysFontAlias, pDoc,
+                               pPDFFont->GetFontDict()->GetObjNum());
   }
   pSysFont = pPDFFont;
 }