add Type enum to SkColorSpace

Bug: 727128
Change-Id: I116de4efd6e64504a4e1892f431f528533b1173a
Reviewed-on: https://skia-review.googlesource.com/64261
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Leon Scroggins <scroggo@google.com>
2 files changed