Split these into their own files, and actually name the files after the
classes they contain. The top three classes in the hierarchy still need
attention, but those are going to be trickier.
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=5195
Change-Id: I295f4d50e35748eac38a31f302e14b5b62653c55
Reviewed-on: https://skia-review.googlesource.com/5195
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Robert Phillips <robertphillips@google.com>
3b66ab6f9f