Take NativeImageSkia out behind the woodshed.

Source/platform/graphics/Image.h

 /*
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc.  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 15 matching lines @@
 
 #ifndef Image_h
 #define Image_h
 
 #include "platform/PlatformExport.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/GraphicsTypes.h"
 #include "platform/graphics/ImageAnimationPolicy.h"
 #include "platform/graphics/ImageOrientation.h"
-#include "platform/graphics/skia/NativeImageSkia.h"
 #include "third_party/skia/include/core/SkXfermode.h"
 #include "wtf/Assertions.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/RetainPtr.h"
 #include "wtf/text/WTFString.h"
 
+class SkBitmap;
 class SkImage;
 
 namespace blink {
 
 class FloatPoint;
 class FloatRect;
 class FloatSize;
 class GraphicsContext;
 class Length;
 class SharedBuffer;
@@ skipping 64 matching lines @@
     // Set animationPolicy
     virtual void setAnimationPolicy(ImageAnimationPolicy) { }
     virtual ImageAnimationPolicy animationPolicy() { return ImageAnimationPolicyAllowed; }
 
     // Typically the ImageResource that owns us.
     ImageObserver* imageObserver() const { return m_imageObserver; }
     void setImageObserver(ImageObserver* observer) { m_imageObserver = observer; }
 
     enum TileRule { StretchTile, RoundTile, SpaceTile, RepeatTile };
 
-    virtual PassRefPtr<NativeImageSkia> nativeImageForCurrentFrame() { return nullptr; }
+    virtual bool bitmapForCurrentFrame(SkBitmap*) WARN_UNUSED_RETURN;
 
     virtual PassRefPtr<Image> imageForDefaultFrame();
 
     virtual void drawPattern(GraphicsContext*, const FloatRect&,
         const FloatSize&, const FloatPoint& phase, SkXfermode::Mode,
         const FloatRect&, const IntSize& repeatSpacing = IntSize());
 
 #if ENABLE(ASSERT)
     virtual bool notSolidColor() { return true; }
 #endif
@@ skipping 17 matching lines @@
     RefPtr<SharedBuffer> m_encodedImageData;
     ImageObserver* m_imageObserver;
 };
 
 #define DEFINE_IMAGE_TYPE_CASTS(typeName) \
     DEFINE_TYPE_CASTS(typeName, Image, image, image->is##typeName(), image.is##typeName())
 
 } // namespace blink
 
 #endif