Fix random chromedriver build failure

A missing dependency made chromedriver builds flaky.

This was reported as a dependency error by
gn check --check-generated after enabling dependency checks
of chrome/test/* in .gn so having those dependency checks
enabled would have prevented this.

Bug: 949518
Change-Id: I3be5864d27e8258be193e67dc9f05f303b7c00fe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1552849
Auto-Submit: Daniel Bratell <bratell@opera.com>
Commit-Queue: John Chen <johnchen@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#647757}
1 file changed