we can std::move work to avoid copying it

clang-tidy pointed out this opportunity in the Google3 build.

Change-Id: Id3c7b291fec12cbf860e7fc2583c1a34ad23f697
Reviewed-on: https://skia-review.googlesource.com/18927
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>
1 file changed