Store powerloadtest password on chromium.org

This fetches the password for powerloadtest from chromium.org so it's simpler to
change the password (no merging back to many branches).

BUG=chrome-os-partner:38926
TEST=run power_LoadTest and login_GaiaLogin

Change-Id: I2756b9df26912a6d2bf0c7c99e0459f14b03344c
Reviewed-on: https://chromium-review.googlesource.com/265250
Reviewed-by: Achuith Bhandarkar <achuith@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Sameer Nanda <snanda@chromium.org>
Commit-Queue: Derek Basehore <dbasehore@chromium.org>
Tested-by: Derek Basehore <dbasehore@chromium.org>
(cherry picked from commit 99c242a22b990e59cac306efa392a2f0f3215bc4)
Reviewed-on: https://chromium-review.googlesource.com/265556
Reviewed-by: Derek Basehore <dbasehore@chromium.org>
2 files changed