Split cleanup changes out of bigger CL (take 2)

This are split out of: https://skia-review.googlesource.com/c/11581/ (Split up opLists)

This is a reland of: https://skia-review.googlesource.com/c/13585/ (Split cleanup changes out of bigger CL)

TBR=bsalomon@google.com

Change-Id: Id0d5c764953230412e78ae6aa654f8dfae998c60
Reviewed-on: https://skia-review.googlesource.com/13643
Commit-Queue: Robert Phillips <robertphillips@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
19 files changed