Use unique_ptr return from CPDF_Parser::ParseIndirectObject()

core/fpdfapi/parser/cpdf_parser.h

Index: core/fpdfapi/parser/cpdf_parser.h
diff --git a/core/fpdfapi/parser/cpdf_parser.h b/core/fpdfapi/parser/cpdf_parser.h
index 3be157a1a2065d5bf6c67862d1f5ff53ed6adec3..0d687843c809453018f5f9d80efe44a23ee04d9d 100644
--- a/core/fpdfapi/parser/cpdf_parser.h
+++ b/core/fpdfapi/parser/cpdf_parser.h
@@ -58,8 +58,9 @@ class CPDF_Parser {
 
   CPDF_Dictionary* GetEncryptDict() const { return m_pEncryptDict; }
 
-  CPDF_Object* ParseIndirectObject(CPDF_IndirectObjectHolder* pObjList,
-                                   uint32_t objnum);
+  std::unique_ptr<CPDF_Object> ParseIndirectObject(
+      CPDF_IndirectObjectHolder* pObjList,
+      uint32_t objnum);
 
   uint32_t GetLastObjNum() const;
   bool IsValidObjectNumber(uint32_t objnum) const;
@@ -78,11 +79,12 @@ class CPDF_Parser {
   int GetFileVersion() const { return m_FileVersion; }
   bool IsXRefStream() const { return m_bXRefStream; }
 
-  CPDF_Object* ParseIndirectObjectAt(CPDF_IndirectObjectHolder* pObjList,
-                                     FX_FILESIZE pos,
-                                     uint32_t objnum);
+  std::unique_ptr<CPDF_Object> ParseIndirectObjectAt(
+      CPDF_IndirectObjectHolder* pObjList,
+      FX_FILESIZE pos,
+      uint32_t objnum);
 
-  CPDF_Object* ParseIndirectObjectAtByStrict(
+  std::unique_ptr<CPDF_Object> ParseIndirectObjectAtByStrict(
       CPDF_IndirectObjectHolder* pObjList,
       FX_FILESIZE pos,
       uint32_t objnum,
@@ -157,7 +159,7 @@ class CPDF_Parser {
   std::set<FX_FILESIZE> m_SortedOffset;
   std::vector<CPDF_Dictionary*> m_Trailers;
   bool m_bVersionUpdated;
-  CPDF_Object* m_pLinearized;
+  std::unique_ptr<CPDF_Object> m_pLinearized;
   uint32_t m_dwFirstPageNo;
   uint32_t m_dwXrefStartObjNum;