tree 4be6b3e12a5c792343737f56a4727b8485afe53b
parent ac635a8fb539fd44f3e24c33872b61fd064c0d60
author mukesh agrawal <quiche@chromium.org> 1326323254 -0800
committer Gerrit <chrome-bot@google.com> 1326332897 -0800

shill: add a class for holding a set of callbacks.

This will be used to allow Devices to register interest
in suspend/resume/terminate events.

BUG=chromium-os:22407
TEST=new unit tests

Change-Id: I466499291cebb57a0d1f8befeef31c78c075cd83
Reviewed-on: https://gerrit.chromium.org/gerrit/14028
Tested-by: mukesh agrawal <quiche@chromium.org>
Reviewed-by: Thieu Le <thieule@chromium.org>
Commit-Ready: mukesh agrawal <quiche@chromium.org>