Make CPDF_Function::Load() return an unique_ptr.

core/fpdfapi/fpdf_render/render_int.h

 // 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
 
 #ifndef CORE_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 #define CORE_FPDFAPI_FPDF_RENDER_RENDER_INT_H_
 
 #include <map>
@@ skipping 187 matching lines @@
                           const CFX_Matrix* pImage2Device,
                           CPDF_ImageCacheEntry* pImageCache,
                           uint32_t flags);
   void CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
                          int left,
                          int top,
                          FX_ARGB mask_argb,
                          int bitmap_alpha,
                          int blend_mode,
                          int bIsolated);
-  FX_BOOL ProcessShading(const CPDF_ShadingObject* pShadingObj,
-                         const CFX_Matrix* pObj2Device);
+  void ProcessShading(const CPDF_ShadingObject* pShadingObj,
+                      const CFX_Matrix* pObj2Device);
   void DrawShading(CPDF_ShadingPattern* pPattern,
                    CFX_Matrix* pMatrix,
                    FX_RECT& clip_rect,
                    int alpha,
                    FX_BOOL bAlphaMode);
   FX_BOOL ProcessType3Text(const CPDF_TextObject* textobj,
                            const CFX_Matrix* pObj2Device);
   FX_BOOL ProcessText(const CPDF_TextObject* textobj,
                       const CFX_Matrix* pObj2Device,
                       CFX_PathData* pClippingPath);
@@ skipping 398 matching lines @@
                             const uint8_t* src_buf,
                             int pixels,
                             int Bpp) const override;
 
   const uint8_t* m_RampR;
   const uint8_t* m_RampG;
   const uint8_t* m_RampB;
 };
 
 #endif  // CORE_FPDFAPI_FPDF_RENDER_RENDER_INT_H_