Don't apply fancy back logic when drawer is not present.

Add test coverage. Booya!

Bug: 27078649
Change-Id: Id2ce53009ee212b3af8d143091859d30e2bc76b1
6 files changed
tree: 3742d03fd9729f203501c23bb3dc3cd1461fb79c
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. lint.xml
  7. wrap_alpha.py