Implement portage-stable UID/GID Rule and Add Apache/MySQL Entries

Add a new rule for enewgroup and enewuser that if the caller is from
portage-stable, ignore the specified UID and GID.

Added entries for Apache and Mysql Users/Groups.

BUG=chromium:342864
TEST=Successfully able to emerge apache and mariadb and successful
trybot run on chromiumos-sdk.

Change-Id: I48f86959d1e367f69e3da51c70eefb3582056487
Reviewed-on: https://chromium-review.googlesource.com/186036
Reviewed-by: Simran Basi <sbasi@chromium.org>
Commit-Queue: Simran Basi <sbasi@chromium.org>
Tested-by: Simran Basi <sbasi@chromium.org>
5 files changed
tree: a8254724ea90ee1149f8fabb13f71c2398f03ecd
  1. eclass/
  2. metadata/
  3. profiles/