Merge "apply -Wextra to third_party/"
authorJohann Koenig <johannkoenig@google.com>
Mon, 10 Dec 2018 16:47:03 +0000 (16:47 +0000)
committerGerrit Code Review <noreply-gerritcodereview@google.com>
Mon, 10 Dec 2018 16:47:03 +0000 (16:47 +0000)

Trivial merge