google_battery: add a testing fixture for battery present

Allow testing UI behavior when the battery is flagged as not present.

Bug: 165331959
Test: rebuild, trigger, check logs, UI
Signed-off-by: AleX Pelosi <[email protected]>
Change-Id: I37144e88dd4f1473e4243cde903d75c8245f252e
Signed-off-by: Ken Tsou <[email protected]>
(cherry picked from commit fded82ca5d0b94f182e87463ce4c5fb20f1e6569)
2 files changed