The goal is that eventually remove BaseLauncherActivityTest and
uase LauncherActivityScenarioRule by compositions instead of
using inheritance and move methods that make sense to have in
LauncherActivityScenarioRule and other in utility classes.
Bug: 324261526
Test: All Tests that inherit from BaseLauncherActivityTest
Flag: TEST_ONLY
Change-Id: I1b2f3ed9e9d41a9185711ba682895b0b3fffe2df
Sebastian Franco
089f07c2b6