Adds SVGImageElement as a ImageBitmapSource

third_party/WebKit/Source/core/html/canvas/ImageElementBase.h

 // Copyright 2017 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CanvasImageElementSource_h
-#define CanvasImageElementSource_h
+#ifndef ImageElementBase_h
+#define ImageElementBase_h
 
 #include "core/CoreExport.h"
 #include "core/html/canvas/CanvasImageSource.h"
+#include "core/imagebitmap/ImageBitmapSource.h"
 
 namespace blink {
 
 class Element;
 class ImageLoader;
 class ImageResourceContent;
 
-class CORE_EXPORT CanvasImageElementSource : public CanvasImageSource {
+class CORE_EXPORT ImageElementBase : public CanvasImageSource,
+                                     public ImageBitmapSource {
  public:
   virtual ImageLoader& GetImageLoader() const = 0;
   virtual FloatSize SourceDefaultObjectSize() = 0;
 
+  IntSize BitmapSourceSize() const override;
+  ScriptPromise CreateImageBitmap(ScriptState*,
+                                  EventTarget&,
+                                  Optional<IntRect>,
+                                  const ImageBitmapOptions&,
+                                  ExceptionState&) override;
+
   PassRefPtr<Image> GetSourceImageForCanvas(SourceImageStatus*,
                                             AccelerationHint,
                                             SnapshotReason,
                                             const FloatSize&) const override;
 
   bool WouldTaintOrigin(
       SecurityOrigin* destination_security_origin) const override;
 
   FloatSize ElementSize(const FloatSize& default_object_size) const override;
   FloatSize DefaultDestinationSize(
       const FloatSize& default_object_size) const override;
 
   bool IsAccelerated() const override;
 
   int SourceWidth() override;
   int SourceHeight() override;
 
   bool IsSVGSource() const override;
 
   bool IsOpaque() const override;
 
   const KURL& SourceURL() const override;
 
+  ImageResourceContent* CachedImage() const;
+
  private:
-  ImageResourceContent* CachedImage() const;
   const Element& GetElement() const;
 };
 
 }  // namespace blink
 
-#endif  // CanvasImageElementSource_h
+#endif  // ImageElementBase_h