Change nonstd::unique_ptr to take a custom deleter.

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp

Index: core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
diff --git a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
index ff14a984bd011602cb504af059e56da0d0034f28..7482f0b8e4fc12427b49cdc9752ad5003771310a 100644
--- a/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
+++ b/core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp
@@ -2376,8 +2376,9 @@ CPDF_Object* CPDF_SyntaxParser::GetObjectByStrict(
         continue;
       }
       key = PDF_NameDecode(key);
-      CPDF_Object* pObj = GetObject(pObjList, objnum, gennum);
-      if (pObj == NULL) {
+      nonstd::unique_ptr<CPDF_Object, ReleaseDeleter<CPDF_Object>> obj(
+          GetObject(pObjList, objnum, gennum));
+      if (!obj) {
         if (pDict) {
           pDict->Release();
         }
@@ -2394,7 +2395,7 @@ CPDF_Object* CPDF_SyntaxParser::GetObjectByStrict(
       }
       if (key.GetLength() > 1) {
         pDict->AddValue(CFX_ByteStringC(key.c_str() + 1, key.GetLength() - 1),
-                        pObj);
+                        obj.release());
       }
     }
     if (pContext) {