cherry-pick: I72c2448894a1084c582c2f1fb942b5fa8353f028
Before this change, the verticalCorrection value was defined by "dpi"
that is relative to device screen. This change defines the
verticalCorrection by absolute unit "in".
Bug: 3066107
Change-Id: If71419dcfc18be3e5e87afea078fa15d3c31d908
This keyboard layout is tentative for UX study.
This change added xlarge keyboard layouts only for "regular text",
"symbol/number mode" and "symbol/number mode shifted".
TODO other text mode variants should have dedicated layout.
Change-Id: I36077efcec4b57c3b5cada0a851e1409a289eeb9
