Remove some WrapUnique() calls by returing unique_ptrs

core/fpdfapi/page/cpdf_image.h

 // 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
 
 #ifndef CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
 #define CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_
 
 #include <memory>
@@ skipping 52 matching lines @@
   bool Continue(IFX_Pause* pPause);
   CFX_DIBSource* DetachBitmap();
   CFX_DIBSource* DetachMask();
 
   CFX_DIBSource* m_pDIBSource = nullptr;
   CFX_DIBSource* m_pMask = nullptr;
   uint32_t m_MatteColor = 0;
 
  private:
   void FinishInitialization();
-  CPDF_Dictionary* InitJPEG(uint8_t* pData, uint32_t size);
+  std::unique_ptr<CPDF_Dictionary> InitJPEG(uint8_t* pData, uint32_t size);
 
   int32_t m_Height = 0;
   int32_t m_Width = 0;
   bool m_bIsInline = false;
   bool m_bIsMask = false;
   bool m_bInterpolate = false;
   CPDF_Document* const m_pDocument;
   CPDF_Stream* m_pStream = nullptr;
   CPDF_Dictionary* m_pDict = nullptr;
   std::unique_ptr<CPDF_Stream> m_pOwnedStream;
   std::unique_ptr<CPDF_Dictionary> m_pOwnedDict;
   CPDF_Dictionary* m_pOC = nullptr;
 };
 
 #endif  // CORE_FPDFAPI_PAGE_CPDF_IMAGE_H_