Added a command line flag to pass a custom Autofill API key.

Change-Id: Ic84e3b2fc4126937a4227d20f0acf03a2f8bcfba
Reviewed-on: https://chromium-review.googlesource.com/c/1355425
Reviewed-by: Roger McFarlane <rogerm@chromium.org>
Commit-Queue: Vincent Boisselle <vincb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#612407}
3 files changed