Support createImageBitmap from a SVG image

third_party/WebKit/Source/core/svg/graphics/SVGImage.h

 /*
  * Copyright (C) 2006 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Apple 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 68 matching lines @@
 
     // The defaultObjectSize is assumed to be unzoomed, i.e. it should
     // not have the effective zoom level applied. The returned size is
     // thus also independent of current zoom level.
     FloatSize concreteObjectSize(const FloatSize& defaultObjectSize) const;
 
     // DisplayItemClient methods.
     String debugName() const final { return "SVGImage"; }
     LayoutRect visualRect() const override;
 
+    bool hasIntrinsicDimensions() const;
+
 private:
     friend class AXLayoutObject;
     friend class SVGImageChromeClient;
     friend class SVGImageForContainer;
 
     ~SVGImage() override;
 
     String filenameExtension() const override;
 
     IntSize containerSize() const;
@@ skipping 47 matching lines @@
         m_image->setImageObserver(m_observer);
     }
 private:
     Image* m_image;
     Member<ImageObserver> m_observer;
 };
 
 } // namespace blink
 
 #endif // SVGImage_h