Pass object to ReplaceIndirectObjectIfHigherGeneration() by unique_ptr.

core/fpdfapi/parser/cpdf_data_avail.cpp

Index: core/fpdfapi/parser/cpdf_data_avail.cpp
diff --git a/core/fpdfapi/parser/cpdf_data_avail.cpp b/core/fpdfapi/parser/cpdf_data_avail.cpp
index eadbf1e8282c144c0e5f72c4f3783e18668bd033..c4ed95e17f27d344afdede77d2c756d91a43aa35 100644
--- a/core/fpdfapi/parser/cpdf_data_avail.cpp
+++ b/core/fpdfapi/parser/cpdf_data_avail.cpp
@@ -1763,13 +1763,11 @@ CPDF_Dictionary* CPDF_DataAvail::GetPage(int index) {
   // We should say to the document, which object is the page.
   m_pDocument->SetPageObjNum(index, dwObjNum);
   // Page object already can be parsed in document.
-  CPDF_Object* pPageDict = m_pDocument->GetIndirectObject(dwObjNum);
-  if (!pPageDict) {
+  if (!m_pDocument->GetIndirectObject(dwObjNum)) {
     m_syntaxParser.InitParser(m_pFileRead, (uint32_t)szPageStartPos);
-    pPageDict = ParseIndirectObjectAt(0, dwObjNum, m_pDocument);
-    if (pPageDict) {
-      m_pDocument->ReplaceIndirectObjectIfHigherGeneration(dwObjNum, pPageDict);
-    }
+    m_pDocument->ReplaceIndirectObjectIfHigherGeneration(
+        dwObjNum, pdfium::WrapUnique<CPDF_Object>(
+                      ParseIndirectObjectAt(0, dwObjNum, m_pDocument)));
   }
   return m_pDocument->GetPage(index);
 }