[vpn-manager] use libchromeos.pc

BUG=chromium-os:24959
TEST=build

Signed-off-by: Elly Jones <ellyjones@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/14022
Reviewed-by: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit 8658b6b585edc6596c872ce4f6c812ce09dcd61a)

Change-Id: Id5fba40180d2ab35aa34e06ebda4a6ff8659026f
Reviewed-on: https://gerrit.chromium.org/gerrit/14519
Reviewed-by: Kees Cook <keescook@chromium.org>
Commit-Ready: Elly Jones <ellyjones@chromium.org>
Tested-by: Elly Jones <ellyjones@chromium.org>
1 file changed