Wrap NotificationInterruptStateProvider

NotificationInterruptStateProvider is being refactored into
VisualInterruptionDecisionProvider. This wrapper will let us use the old
or new class based on a flag before we commit to the new class.

Bug: 261728888
Test: atest NotificationInterruptStateProviderWrapper
Test: # plus future callers' unit tests
Change-Id: I2ffa4b57af9eaeb5ce61ca8ef7ad0fabb792043c