This is a reland of commit 69fecd6c2d
Original change's description:
> Add SkCapabilities object
>
> This describes the capabilities of a particular Skia rendering context
> (GPU context, or the CPU backend). At the moment, it only contains the
> supported SkSL version (with a new enum added to specify the current
> value as "100" and a new ES3 value as "300".
>
> SkCapabilities can not be retrieved from an SkCanvas - the client must
> have a concrete way of knowing what their destination device that will
> do the actual rendering is (GrCaps or SkSurface).
>
> This CL doesn't make use of the SkCapabilities yet, that's coming in
> follow-up CLs that alter the SkSL compiler and SkRuntimeEffect API.
>
> Bug: skia:11209
> Change-Id: I4e9fd21ff7ffd79f1926c5c2eb34e10b3af4bc9b
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/537876
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: John Stiles <johnstiles@google.com>
Bug: skia:11209
Change-Id: If76343a8a536ade25f6b3d80e0885c7bc47d2adf
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/540919
Reviewed-by: John Stiles <johnstiles@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
3cbb13a93b