ChromeOS: add support for Gaia v2 API.

This CL adds support for Gaia v2 API to oobe.py

BUG= chromium:739998 
Review-Url: https://codereview.chromium.org/2979923002
Committed: https://chromium.googlesource.com/external/github.com/catapult-project/catapult/+/dac0038997b8387868c9e30268bb786d1676c1c9

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/7e57d09f3e996b1d975ddb0d6187d9476b3b76e2

commit 7e57d09f3e996b1d975ddb0d6187d9476b3b76e2
Author: catapult-deps-roller@chromium.org <catapult-deps-roller@chromium.org>
Date: Thu Jul 13 06:08:35 2017

Roll src/third_party/catapult/ e4d806cd4..dac003899 (1 commit)

https://chromium.googlesource.com/external/github.com/catapult-project/catapult.git/+log/e4d806cd4821..dac0038997b8

$ git log e4d806cd4..dac003899 --date=short --no-merges --format='%ad %ae %s'
2017-07-12 alemate ChromeOS: add support for Gaia v2 API.

Created with:
  roll-dep src/third_party/catapult
BUG= 739998 


Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=sullivan@chromium.org

Change-Id: I482eababaacd232b73bd15df0c7e06a7030997f1
Reviewed-on: https://chromium-review.googlesource.com/569568
Reviewed-by: <catapult-deps-roller@chromium.org>
Commit-Queue: <catapult-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486287}
[modify] https://crrev.com/7e57d09f3e996b1d975ddb0d6187d9476b3b76e2/DEPS