Changes in 20210102215130

Built from fc1cc85f4f27a6527065bde732b0d6688bdece3e

..index..
Bug 1627014 R[Core:Canvas: 2D]Implement `CanvasRenderingContext2D.createConicGradient`
Bug 1684652 R[Core:GFX: Color Management]Drop some unneeded casts.
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Changes to 2 bugs - 2 fixed.