Merge CPDF_ImageLoader with its handle

core/fpdfapi/render/cpdf_imageloader.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_RENDER_CPDF_IMAGELOADER_H_
 #define CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_
 
 #include <memory>
 
 #include "core/fxcrt/fx_basic.h"
 #include "core/fxge/fx_dib.h"
 
-class CPDF_ImageLoaderHandle;
 class CPDF_ImageObject;
 class CPDF_PageRenderCache;
 class CPDF_RenderStatus;
 
 class CPDF_ImageLoader {
  public:
   CPDF_ImageLoader();
   ~CPDF_ImageLoader();
 
   bool Start(const CPDF_ImageObject* pImage,
              CPDF_PageRenderCache* pCache,
              bool bStdCS,
              uint32_t GroupFamily,
              bool bLoadMask,
              CPDF_RenderStatus* pRenderStatus,
              int32_t nDownsampleWidth,
              int32_t nDownsampleHeight);
   bool Continue(IFX_Pause* pPause);
 
   CFX_DIBSource* m_pBitmap;
   CFX_DIBSource* m_pMask;
   uint32_t m_MatteColor;
   bool m_bCached;
 
  private:
+  void HandleFailure();
+
   int32_t m_nDownsampleWidth;
   int32_t m_nDownsampleHeight;
-
-  std::unique_ptr<CPDF_ImageLoaderHandle> m_pLoadHandle;
+  CPDF_PageRenderCache* m_pCache;
+  CPDF_ImageObject* m_pImage;
 };
 
 #endif  // CORE_FPDFAPI_RENDER_CPDF_IMAGELOADER_H_