Replace RefPtrs with raw pointers (imageFromNode in Editor.cpp)

third_party/WebKit/Source/core/html/HTMLCanvasElement.h

 /*
  * Copyright (C) 2004, 2006, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. 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.
@@ skipping 114 matching lines @@
     void paint(GraphicsContext&, const LayoutRect&);
 
     SkCanvas* drawingCanvas() const;
     void disableDeferral(DisableDeferralReason) const;
     SkCanvas* existingDrawingCanvas() const;
 
     CanvasRenderingContext* renderingContext() const { return m_context.get(); }
 
     void ensureUnacceleratedImageBuffer();
     ImageBuffer* buffer() const;
-    PassRefPtr<Image> copiedImage(SourceDrawingBuffer, AccelerationHint) const;
+    Image* copiedImage(SourceDrawingBuffer, AccelerationHint) const;
     void clearCopiedImage();
 
     SecurityOrigin* getSecurityOrigin() const;
     bool originClean() const;
     void setOriginTainted() { m_originClean = false; }
 
     AffineTransform baseTransform() const;
 
     bool is3D() const;
     bool isAnimated2D() const;
@@ skipping 86 matching lines @@
     bool shouldUseDisplayList(const IntSize& deviceSize);
 
     void setSurfaceSize(const IntSize&);
 
     bool paintsIntoCanvasBuffer() const;
 
     ImageData* toImageData(SourceDrawingBuffer, SnapshotReason) const;
 
     String toDataURLInternal(const String& mimeType, const double& quality, SourceDrawingBuffer) const;
 
+    Image* ensureTransparentImage() const;
+
     HeapHashSet<WeakMember<CanvasDrawListener>> m_listeners;
 
     IntSize m_size;
 
     Member<CanvasRenderingContext> m_context;
 
     bool m_ignoreReset;
     FloatRect m_dirtyRect;
 
     mutable intptr_t m_externallyAllocatedMemory;
 
     bool m_originClean;
 
     // It prevents HTMLCanvasElement::buffer() from continuously re-attempting to allocate an imageBuffer
     // after the first attempt failed.
     mutable bool m_didFailToCreateImageBuffer;
     bool m_imageBufferIsClear;
     std::unique_ptr<ImageBuffer> m_imageBuffer;
 
     mutable RefPtr<Image> m_copiedImage; // FIXME: This is temporary for platforms that have to copy the image buffer to render (and for CSSCanvasValue).
 
     // Used for OffscreenCanvas that controls this HTML canvas element
     std::unique_ptr<CanvasSurfaceLayerBridge> m_surfaceLayerBridge;
+
+    mutable RefPtr<Image> m_transparentImage;
 };
 
 } // namespace blink
 
 #endif // HTMLCanvasElement_h