Fix ActionButton.CloseMode minWidth to match Toolbar.Button.Navigation

They both need to be 56dp for the buttons to line up properly.

This ports If24608d9f8dbf912025967bf3adef13df105ddaa from
frameworks/support in lmp-mr1-ub-dev

Bug: 19317317
Change-Id: Ie1f77b8cfada45bb9f8b2d14e68c364ae4ebf579
2 files changed