Cherrypick I44f3b2eef8086d6e0b0db53d38f08487549060c6 from Gingerbread
This change also introduces the key background drawables which has no
fixed bottom padding. Instead of relying on bottom padding in
drawable, this change also specifies Keyboard.verticalGap with
physical unit. Other keyboard related length, distance and size are
also specified by physical unit.
Bug: 3066107
Change-Id: Ib38355ebfc2f8d5b1d26c4e90eba87196fbeddfa
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
