Make ImageBitmap transferable work with ImageBitmapOptions

third_party/WebKit/Source/platform/graphics/StaticBitmapImage.h

 // Copyright 2014 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 StaticBitmapImage_h
 #define StaticBitmapImage_h
 
 #include "platform/graphics/Image.h"
 
 namespace blink {
 
 class PLATFORM_EXPORT StaticBitmapImage final : public Image {
 public:
     ~StaticBitmapImage() override;
 
     bool currentFrameIsComplete() override { return true; }
 
     static PassRefPtr<StaticBitmapImage> create(PassRefPtr<SkImage>);
     virtual void destroyDecodedData(bool destroyAll) { }
     virtual bool currentFrameKnownToBeOpaque(MetadataMode = UseCurrentMetadata);
     virtual IntSize size() const;
     void draw(SkCanvas*, const SkPaint&, const FloatRect& dstRect, const FloatRect& srcRect, RespectImageOrientationEnum, ImageClampingMode) override;
 
     PassRefPtr<SkImage> imageForCurrentFrame() override;
 
     bool originClean() const { return m_isOriginClean; }
     void setOriginClean(bool flag) { m_isOriginClean = flag; }
+    bool isPremultiplied() const { return m_isPremultiplied; }
+    void setPremultiplied(bool flag) { m_isPremultiplied = flag; }
 protected:
     StaticBitmapImage(PassRefPtr<SkImage>);
 
     RefPtr<SkImage> m_image;
     bool m_isOriginClean = true;
+    bool m_isPremultiplied = true;

[Justin Novosad, 2016/03/29 14:39:53]

Please add a note stating that the need to store this information here stems
from the fact that SkImage public API does not expose its image info.

[xidachen, 2016/03/29 15:41:01]

Done.

 };
 
 } // namespace blink
 
 #endif