Update SkGaussianColorFilter to support an input FP.

Change-Id: Idf0c2fa4a0affb8c661d5610167bd8990781920b
Bug: skia:10217
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298982
Commit-Queue: John Stiles <johnstiles@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
1 file changed