Simple typo fixed.

Bug: 
Change-Id: I958e384490db02008765408bc825345d350586b2
Reviewed-on: https://chromium-review.googlesource.com/614340Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Alexandre Talon <alexandret@google.com>
Cr-Commit-Position: refs/heads/master@{#47358}