Return unique_ptrs from CFX_DIBitmap::Clone().

core/fpdfapi/render/cpdf_imagecacheentry.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/render/cpdf_imagecacheentry.h"
 
 #include <memory>
 #include <utility>
@@ skipping 16 matching lines @@
       m_pStream(pStream),
       m_pCurBitmap(nullptr),
       m_pCurMask(nullptr),
       m_dwCacheSize(0) {}
 
 CPDF_ImageCacheEntry::~CPDF_ImageCacheEntry() {}
 
 void CPDF_ImageCacheEntry::Reset(const CFX_DIBitmap* pBitmap) {
   m_pCachedBitmap.reset();
   if (pBitmap)
-    m_pCachedBitmap = pdfium::WrapUnique<CFX_DIBSource>(pBitmap->Clone());
+    m_pCachedBitmap = pBitmap->Clone();
   CalcSize();
 }
 
 static uint32_t FPDF_ImageCache_EstimateImageSize(const CFX_DIBSource* pDIB) {
   return pDIB && pDIB->GetBuffer()
              ? (uint32_t)pDIB->GetHeight() * pDIB->GetPitch() +
                    (uint32_t)pDIB->GetPaletteSize() * 4
              : 0;
 }
 
@@ skipping 109 matching lines @@
     return 0;
   }
   ContinueGetCachedBitmap();
   return 0;
 }
 
 void CPDF_ImageCacheEntry::CalcSize() {
   m_dwCacheSize = FPDF_ImageCache_EstimateImageSize(m_pCachedBitmap.get()) +
                   FPDF_ImageCache_EstimateImageSize(m_pCachedMask.get());
 }