Use sk_sp<SkBitmap::Allocator> instead of raw pointers or WTF::RefPtr<T>.

third_party/WebKit/Source/platform/image-decoders/ImageDecoder.h

 /*
  * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 240 matching lines @@
     // Clears decoded pixel data from all frames except the provided frame.
     // Callers may pass WTF::kNotFound to clear all frames.
     // Note: If |m_frameBufferCache| contains only one frame, it won't be cleared.
     // Returns the number of bytes of frame data actually cleared.
     virtual size_t clearCacheExceptFrame(size_t);
 
     // If the image has a cursor hot-spot, stores it in the argument
     // and returns true. Otherwise returns false.
     virtual bool hotSpot(IntPoint&) const { return false; }
 
-    virtual void setMemoryAllocator(SkBitmap::Allocator* allocator)
+    virtual void setMemoryAllocator(sk_sp<SkBitmap::Allocator> allocator)
     {
         // FIXME: this doesn't work for images with multiple frames.
         if (m_frameBufferCache.isEmpty()) {
             m_frameBufferCache.resize(1);
             m_frameBufferCache[0].setRequiredPreviousFrameIndex(
                 findRequiredPreviousFrame(0, false));
         }
-        m_frameBufferCache[0].setMemoryAllocator(allocator);
+        m_frameBufferCache[0].setMemoryAllocator(std::move(allocator));
     }
 
     virtual bool canDecodeToYUV() { return false; }
     virtual bool decodeToYUV() { return false; }
     virtual void setImagePlanes(std::unique_ptr<ImagePlanes>) { }
 
 protected:
     ImageDecoder(AlphaOption alphaOption, GammaAndColorProfileOption colorOptions, size_t maxDecodedBytes)
         : m_premultiplyAlpha(alphaOption == AlphaPremultiplied)
         , m_ignoreGammaAndColorProfile(colorOptions == GammaAndColorProfileIgnored)
@@ skipping 81 matching lines @@
     ImageFrame::ICCProfile m_colorProfile;
 
 #if USE(QCMSLIB)
     QCMSTransformUniquePtr m_sourceToOutputDeviceColorTransform;
 #endif
 };
 
 } // namespace blink
 
 #endif