If a settings fragment is at the top of the backstack (or root), replace
back arrow with the settings app icon.

bug: 129869475
Test: Manual, robotests
Change-Id: I1f2c02401e452b2d268e92e0bbc68a586d1bdba1
2 files changed
tree: cdd4ef8fc61b40b721144b1e9cf1f35092183adc
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg