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

core/fpdfdoc/cpdf_formfield.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 "core/fpdfdoc/cpdf_formfield.h"
 
 #include <set>
 
@@ skipping 557 matching lines @@
     }
   } else {
     CPDF_Object* pValue = FPDF_GetFieldAttr(m_pDict, "V");
     if (pValue) {
       if (GetType() == ListBox) {
         SelectOption(index, false);
         if (pValue->IsString()) {
           if (pValue->GetUnicodeText() == opt_value)
             m_pDict->RemoveFor("V");
         } else if (pValue->IsArray()) {
-          std::unique_ptr<CPDF_Array> pArray(new CPDF_Array);
+          std::unique_ptr<CPDF_Array, ReleaseDeleter<CPDF_Array>> pArray(
+              new CPDF_Array);
           for (int i = 0; i < CountOptions(); i++) {
             if (i != index && IsItemSelected(i)) {
               opt_value = GetOptionValue(i);
               pArray->AddString(PDF_EncodeText(opt_value));
             }
           }
           if (pArray->GetCount() > 0)
             m_pDict->SetFor("V", pArray.release());  // std::move someday
         }
       } else {
@@ skipping 400 matching lines @@
     case ListBox:
       NotifyAfterSelectionChange();
       break;
     case ComboBox:
       NotifyAfterValueChange();
       break;
     default:
       break;
   }
 }