Clean up SkSplicer.

SkJumper's looking promising enough that I want this further out of my face.

Change-Id: I6dbe71aeabe32f7f4258ba157460e6985733b0ce
Reviewed-on: https://skia-review.googlesource.com/8528
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
12 files changed