(factory-2305.B) Integrate system_api CLs into the factory branch

BUG=chrome-os-partner:9874
TEST=None

cherry picked from commit 11f814780a4a8c39b958d126a8f2f5d6101e334d
cherry picked from commit d0462feaf43a86d7696959ebcd00181e3262c735

Change-Id: I8261cdc9e61c185dd565b6da894daf888db019e7
Reviewed-on: https://gerrit.chromium.org/gerrit/24100
Tested-by: Ben Chan <benchan@chromium.org>
Reviewed-by: Jay Kim <yongjaek@chromium.org>
1 file changed
tree: 363e5c2fc46e3c466336d00fc402cce3ad00a491
  1. README
  2. dbus/
  3. window_manager/