Add tail handling for SSE* to SkJumper.

Change-Id: Icb9d385333082de2f99b7a25cfd7251717e3f663
Reviewed-on: https://skia-review.googlesource.com/17580
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Herb Derby <herb@google.com>
7 files changed