prevent multiwindow if halo enabled
please multiwindow stay out if HALO there !! , but we will leave you in activity

Change-Id: Ie9ca36b6c7647ff9c6f038986b107f3623d8726c

Conflicts:

	core/java/android/inputmethodservice/InputMethodService.java

Conflicts:
	core/java/android/inputmethodservice/InputMethodService.java