[graphite] Replace Combination with SkPaintParamsKey
SkPaintParamsKey can be variable length and is thus the path forward for encapsulating/representing PaintParams.
Note: SkPaintParamsKey isn't in the skgpu namespace bc, ultimately, the individual SkShaders, etc will be responsible for adding their own information to the key.
Bug: skia:12701
Change-Id: I7472dc00706a4548bc3ffb4e287a941a2b8ffcae
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/492405
Reviewed-by: Michael Ludwig <michaelludwig@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>
14 files changed