SkJumper: constant() embeds constants directly in code

This is a potential alternative to threading around a constants struct.
I've applied it in a smattering of locations to get a feel for it.
If we like it and the performance is fine, I'll follow up with the rest.

Change-Id: Ief469e17d6da2cb94e4545ae96cf5d2604ffba88
Reviewed-on: https://skia-review.googlesource.com/9393
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2 files changed