Change nonstd::unique_ptr to take a custom deleter.

core/src/fpdfapi/fpdf_parser/fpdf_parser_parser.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 2358 matching lines @@
         break;
       }
       if (key == FX_BSTRC("endobj")) {
         m_Pos = SavedPos;
         break;
       }
       if (key[0] != '/') {
         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();
         }
         uint8_t ch;
         while (1) {
           if (!GetNextChar(ch)) {
             break;
           }
           if (ch == 0x0A || ch == 0x0D) {
             break;
           }
         }
         return NULL;
       }
       if (key.GetLength() > 1) {
         pDict->AddValue(CFX_ByteStringC(key.c_str() + 1, key.GetLength() - 1),
-                        pObj);
+                        obj.release());
       }
     }
     if (pContext) {
       pContext->m_DictEnd = m_Pos;
       if (pContext->m_Flags & PDFPARSE_NOSTREAM) {
         return pDict;
       }
     }
     FX_FILESIZE SavedPos = m_Pos;
     FX_BOOL bIsNumber;
@@ skipping 2274 matching lines @@
   return FALSE;
 }
 CPDF_PageNode::~CPDF_PageNode() {
   int32_t iSize = m_childNode.GetSize();
   for (int32_t i = 0; i < iSize; ++i) {
     CPDF_PageNode* pNode = (CPDF_PageNode*)m_childNode[i];
     delete pNode;
   }
   m_childNode.RemoveAll();
 }