[Signin][Android] Monitor account seeding in ConsistencyCookieManager

Changes ConsistencyCookieManager to monitor account seed status from
AccountTrackerService and notify the native side that an update is
pending.

Bug: 949562
Change-Id: Ie2734ecb349490650feb185f7ab47089e093f24c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1581961
Commit-Queue: David Roger <droger@chromium.org>
Reviewed-by: David Roger <droger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#653993}
6 files changed