Provides an alternate presentation of the extract edit area
of an input method window, designed for sub 250dp width screens.
An icon is used on a round material style button in place of a text
action, providing more horizontal space for the editing area.
BUG: 28098677
(cherry picked from commit fd71a6a5d99bad5d3ab32edc328fb5b026b66215)
Change-Id: I0e559d17f78d1a48b37979a49e11ae1aad7503f4
91eb2651a0