Remove CPDF_Object::Release() in favor of direct delete

core/fpdfapi/page/cpdf_contentmark.cpp

 // Copyright 2016 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 "core/fpdfapi/page/cpdf_contentmark.h"
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "third_party/base/stl_util.h"
@@ skipping 92 matching lines @@
 }
 
 void CPDF_ContentMark::MarkData::AddMark(const CFX_ByteString& name,
                                          CPDF_Dictionary* pDict,
                                          bool bDirect) {
   CPDF_ContentMarkItem item;
   item.SetName(name);
   if (pDict) {
     if (bDirect) {
       item.SetDirectDict(
-          std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>>(
-              ToDictionary(pDict->Clone())));
+          std::unique_ptr<CPDF_Dictionary>(ToDictionary(pDict->Clone())));
     } else {
       item.SetPropertiesDict(pDict);
     }
   }
   m_Marks.push_back(std::move(item));
 }
 
 void CPDF_ContentMark::MarkData::DeleteLastMark() {
   if (!m_Marks.empty())
     m_Marks.pop_back();
 }