Add TextView#set/getShowSoftInputOnFocus

These APIs allow an application to suppress the default editable
TextView focus gain behavior of displaying the IME. Useful in cases
where an app provides an alternate way of entering content, such as a
dialpad or calculator pad.

Bug 11540727

Change-Id: I1abd98db6e1522a9655a42b6ee712f50a962ea00
2 files changed