Adds SVGImageElement as a ImageBitmapSource

third_party/WebKit/Source/core/html/canvas/CanvasImageElementSource.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
-
-#include "core/CoreExport.h"
-#include "core/html/canvas/CanvasImageSource.h"
-
-namespace blink {
-
-class Element;
-class ImageLoader;
-class ImageResourceContent;
-
-class CORE_EXPORT CanvasImageElementSource : public CanvasImageSource {
- public:
-  virtual ImageLoader& GetImageLoader() const = 0;
-  virtual FloatSize SourceDefaultObjectSize() = 0;
-
-  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;
-
- private:
-  ImageResourceContent* CachedImage() const;
-  const Element& GetElement() const;
-};
-
-}  // namespace blink
-
-#endif  // CanvasImageElementSource_h