Implement color management for ImageBitmap in Canvas
Implement color management for ImageBitmap as described in proposal:
(github.com/junov/CanvasColorSpace/blob/master/CanvasColorSpaceProposal.md)
ImageBitmap objects are augmented to have an internal color space
attribute of type CanvasColorSpace. The colorSpaceConversion creation
attribute also accepts enum values that correspond to CanvasColorSpace
values. Specifying a CanvasColorSpace value results in a conversion of
the image to the specified color space.
Comment 1 by ccameron@chromium.org
, Nov 21 2016