Return unique_ptr from CPDF_Object::Clone().

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 201 matching lines @@
         csValue = pV->GetUnicodeText();
 
       CPDF_Object* pRV = FPDF_GetFieldAttr(m_pDict, "RV");
       if (!pRV && (csDValue == csValue))
         return false;
 
       if (bNotify && !NotifyBeforeValueChange(csDValue))
         return false;
 
       if (pDV) {
-        CPDF_Object* pClone = pDV->Clone();
+        std::unique_ptr<CPDF_Object> pClone = pDV->Clone();
         if (!pClone)
           return false;
 
-        m_pDict->SetFor("V", pClone);
+        m_pDict->SetFor("V", pClone.release());
         if (pRV) {
-          CPDF_Object* pCloneR = pDV->Clone();
-          m_pDict->SetFor("RV", pCloneR);
+          std::unique_ptr<CPDF_Object> pCloneR = pDV->Clone();
+          m_pDict->SetFor("RV", pCloneR.release());
         }
       } else {
         m_pDict->RemoveFor("V");
         m_pDict->RemoveFor("RV");
       }
       if (bNotify)
         NotifyAfterValueChange();
       break;
     }
   }
@@ skipping 749 matching lines @@
     case ListBox:
       NotifyAfterSelectionChange();
       break;
     case ComboBox:
       NotifyAfterValueChange();
       break;
     default:
       break;
   }
 }