Launch CloseOnOutsideTests with ActivityScenarioRule

To pass CloseOnOutsideTests#finishTrue on ARC++, test app window has to
be launched in fullscreen. This change replaces the usage of
ActivityTestRule with using ActivityScenarioRule in order to set the
window in fullscreen. With the change, ARC++ no longer needs to hardcode
launch parameters for passing the tests

Bug: 171840043
Test: Run CloseOnOutsideTests by atest
Change-Id: Id9367030df16eae0061e390f563e116be847c872
1 file changed