SkTypes:  more into SkMacros

Change-Id: I4c9a2d81a1bc4ccebc78eea56c0de116b98d415e
Reviewed-on: https://skia-review.googlesource.com/134330
Commit-Queue: Hal Canary <halcanary@google.com>
Auto-Submit: Hal Canary <halcanary@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
23 files changed