libweave: libchrome uprev update

Clock::Now is changed from non const to const.

BUG=chromium:909719
TEST=build and cros_run_unit_tests libweave

Cq-Depend: chromium:1956983
Change-Id: I76985dfa242756fc94002713b089be064ec2cf17
Reviewed-on: https://chromium-review.googlesource.com/c/weave/libweave/+/1958433
Tested-by: Grace Cham <hscham@chromium.org>
Reviewed-by: Hidehiko Abe <hidehiko@chromium.org>
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Qijiang Fan <fqj@google.com>
1 file changed