Add stackable button bar style

The gravity change caused incompatibility with existing code. So
instead we create SuwGlifButtonBar.Stackable style for the stackable
version.

Test: Manual
Bug: 63399819
Change-Id: I146dbc4f7f2a2019cfe964f59f0a73c099845f30
2 files changed
tree: 8cc9e8a4d701098e0861b13582870c6630a1918f
  1. library/
  2. navigationbar/
  3. tools/
  4. .gitignore
  5. PREUPLOAD.cfg