Make AddIndirectObject() take a unique_ptr.

core/fpdfapi/parser/cpdf_array.cpp

Index: core/fpdfapi/parser/cpdf_array.cpp
diff --git a/core/fpdfapi/parser/cpdf_array.cpp b/core/fpdfapi/parser/cpdf_array.cpp
index af9b544f0a1f302e4bdb5cea8946e67443eb7675..f8ec46acc9da7578f7284f8cf6917c00952c49c1 100644
--- a/core/fpdfapi/parser/cpdf_array.cpp
+++ b/core/fpdfapi/parser/cpdf_array.cpp
@@ -155,8 +155,8 @@ void CPDF_Array::ConvertToIndirectObjectAt(size_t i,
   if (!pObj || pObj->IsReference())
     return;
 
-  uint32_t dwObjNum = pHolder->AddIndirectObject(pObj);
-  m_Objects[i] = new CPDF_Reference(pHolder, dwObjNum);
+  CPDF_Object* pNew = pHolder->AddIndirectObject(pdfium::WrapUnique(pObj));
+  m_Objects[i] = new CPDF_Reference(pHolder, pNew->GetObjNum());
 }
 
 void CPDF_Array::SetAt(size_t i, CPDF_Object* pObj) {
@@ -209,3 +209,9 @@ void CPDF_Array::AddReference(CPDF_IndirectObjectHolder* pDoc,
                               uint32_t objnum) {
   Add(new CPDF_Reference(pDoc, objnum));
 }
+
+void CPDF_Array::AddReference(CPDF_IndirectObjectHolder* pDoc,
+                              CPDF_Object* pObj) {
+  ASSERT(!pObj->IsInline());
+  Add(new CPDF_Reference(pDoc, pObj->GetObjNum()));
+}