Remove use of RunPaint from regenerateGlyphRunList

Change uses of RunPaint and Paint to uses of SkPaint and a GrColor.

Change-Id: I44d4c41a53e570f316e10dee26754c21d9593de0
Reviewed-on: https://skia-review.googlesource.com/145962
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
5 files changed