IMEs recently gained the ability to layout out under the nav bar,
but our core measuring logic does not give height=WRAP_CONTENT windows
the entire screen height when computing desired window height.
Since IMEs can be identified by type, let them use the entire screen
height for measuring purposes, to properly handle the cases where
space is constrained, making that unaccounted-for nav bar height
important.
Bug:11215678
Change-Id: I1d0b73454c0c629e7d669b9de70641c7e8c4d333
f8508272ad