Simplify the activity lifecycle from START to STOP

When the life cycle of activity stay in START state and plan to STOP
state soon. We can jump to the STOP state directly instead of going through
the RESUME and PAUSE state. Basically, applications like to do things on
RESUME state, we don't need to let application to handle the case because
it already plan to STOP.

This CL simplify the lifecycle path for the condition and update the related
test case.

Bug: 143125452
Test: atest TransactionExecutorTests
      atest ActivityLifecycleTests

Change-Id: Id4164eae211587a2dd4e845970ef41cc38ce430d