Return unique_ptr from CPDF_Object::Clone().

core/fpdfapi/page/cpdf_contentmarkitem.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_contentmarkitem.h"
 
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 
 CPDF_ContentMarkItem::CPDF_ContentMarkItem()
     : m_ParamType(None), m_pPropertiesDict(nullptr) {}
 
 CPDF_ContentMarkItem::CPDF_ContentMarkItem(const CPDF_ContentMarkItem& that)
     : m_MarkName(that.m_MarkName),
       m_ParamType(that.m_ParamType),
       m_pPropertiesDict(that.m_pPropertiesDict) {
   if (that.m_pDirectDict)
-    m_pDirectDict.reset(that.m_pDirectDict->Clone()->AsDictionary());
+    m_pDirectDict = ToDictionary(that.m_pDirectDict->Clone());
 }
 
 CPDF_ContentMarkItem::~CPDF_ContentMarkItem() {}
 
 CPDF_Dictionary* CPDF_ContentMarkItem::GetParam() const {
   switch (m_ParamType) {
     case PropertiesDict:
       return m_pPropertiesDict;
     case DirectDict:
       return m_pDirectDict.get();
@@ skipping 11 matching lines @@
 void CPDF_ContentMarkItem::SetDirectDict(
     std::unique_ptr<CPDF_Dictionary> pDict) {
   m_ParamType = DirectDict;
   m_pDirectDict = std::move(pDict);
 }
 
 void CPDF_ContentMarkItem::SetPropertiesDict(CPDF_Dictionary* pDict) {
   m_ParamType = PropertiesDict;
   m_pPropertiesDict = pDict;
 }