Have CategorizeGlyphRunList take a strike cache as a param

Change categorizeGlyphRunList to be static, and take the
strike cache as a parameter. This will simplify hoisting this
to the SkGlyphRunListBuilder.

Change-Id: I34b7d71aedc0dc67ae256d0121999fca2981a89f
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/541744
Reviewed-by: Robert Phillips <robertphillips@google.com>
Commit-Queue: Herb Derby <herb@google.com>
14 files changed