repeat tiling

Does the note in repeat() look right?

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4980
CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Change-Id: I347023f312ab4643fc387e486192c3ae3357db8b
Reviewed-on: https://skia-review.googlesource.com/4980
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
3 files changed