Add bottom offset to the intial padding rather than accumulating it.

This prevents the padding from growing on screen rotations.

Fixes: 160005616
Test: manual
Test: atest ChooserActivityTest
Change-Id: I87fcfede3cf9cfad63adeb07b67ed68df403453f
(cherry picked from commit 96078b10521676bd60ffff60f14619c1dcdaead6)
1 file changed