Add "task" to ibus.conf since the file no longer launches ibus-daemon.

ibus.conf

 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-description   "Run ibus-daemon and ibus-memconf"
+description   "Kill input method daemons when X stopped"
 author        "chromium-os-dev@googlegroups.com"
 
-stop on stopping ui
+start on stopping ui
+task
 
 # ibus-daemon creates a temporary file in /home/chronos,
 # not in /home/chronos/user.
 env HOME=/home/chronos
 
-post-stop script
+script
 
 set +e
 . /sbin/killers
 
-# Ensure ibus-daemon  and sub-processes are terminated. Note that these
-# processes are not mananged by Upstart.
-term_process "(candidate_w.*|ibus-[dem].*)"
+# Ensure candidate_window for input methods, ibus-daemon, and sub processes
+# of ibus-daemon are terminated. Note that candidate_window and IBus processes
+# are not mananged by Upstart. They are launched from Chrome. ".*" is used
+# since the process name used for matching is limited to 15 characters.
+term_process "(candidate_w.*|ibus-.*)"
 
-# Since Chrome OS regenerates /var/lib/dbus/machine-id every time when the OS
-# starts, ibus-daemon creates a new file in ${HOME}/.config/ibus/bus/ every time
-# when it starts. It's better to remove them when ibus-daemon is terminated.
+# Remove ibus-daemon's PID file.
 rm -f ${HOME}/.config/ibus/bus/*
 
 end script