Merge "Unbind Input Method if it was forcefully stopped" into main

     */

    @GuardedBy("ImfLock.class")

    private final ServiceConnection mMainConnection = new ServiceConnection() {

        @Override

        public void onBindingDied(ComponentName name) {

            synchronized (ImfLock.class) {

                unbindCurrentMethod();

            }

        }

        @Override

        public void onServiceConnected(ComponentName name, IBinder service) {

            Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "IMMS.onServiceConnected");