Avoid static initialization of Layout from TextUtils

This works around a bug in standalone (e.g. non-Zygote)
runtimes when a device is attached to a host that is running
DDM.

There is a race condition:

When the runtime receives a HELLO from DDM it calls
TextUtils.isEmpty().

Calling any TextUtils methods statically initializes
Layout. Layout has dependencies on other classes, which in
turn have dependencies on native methods that are not always
registered when the call takes place. Registration and DDM
handling are done in separate threads.

This is not a fix, merely a workaround until the race can
be resolved.

Bug: 18081539
Change-Id: If1bd3de6597bc93da381c8f86dacf40156449561