[img-conversion] createImageBitmap (#16)

A newly exposed API called [createImageBitmap](https://developer.mozilla.org/en-US/docs/Web/API/ImageBitmapFactories/createImageBitmap) seems to be somewhat stepping on this proposal's toes.

Would it be possible to converge? If not, can we outline the differences?

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Reply to this email directly or view it on GitHub:
https://github.com/WICG/img-conversion/issues/16