tree 37bdf405989b118143af3367d3f8d9e7f3346f18
parent fa29d8f43a37aaf4b47fd2f3c76785050d075a7d
author Srinivasa Duvvuri <sduvvuri@google.com> 1493684071 -0700
committer Srinivasa Duvvuri <sduvvuri@google.com> 1494016737 +0000

buffet: Do not remove credentials when invalid_grant.

Change Buffet to not to remove credentials when gcd returns invalid_grant.
The decision to remove credentials is handled outside buffet.
This allows us to not to loose the device permanently in case of short
duartion/temporary GAIA outage (similar to the one happened recently).

BUG=b:37358256
TEST=Tested following scenarios on Gale
1. Factory reset from APP when Gale is online.
2. Factory reset from APP when Gale is offline.
3. Verify that the device reconnects back when credentials are removed
from cloud and restored after 1 hour and device authenticates,reconnects
successfully and operates normally there after.

Change-Id: Iebf648738b9c91e59c17ec155baea6876db64d6a
Reviewed-on: https://weave-review.googlesource.com/9990
Reviewed-by: Kan Yan <kyan@google.com>