Would not compile locally on Linux without adding #include <algorithm>.

BUG=none

Change-Id: I2f817faf681234c0e7eeeda0ad837e8285d9071a
Reviewed-on: https://chromium-review.googlesource.com/941613
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Luc Ferron <lucferron@chromium.org>