Fixed quickscrub regression

Forgot that quickscrub does not proxy motion events when refactoring.
Added a new function for actions to proxy events and made sure that the
test catches if events were proxied.

Test: atest QuickStepControllerTest
Change-Id: I8c047816aa266dfd9d220df7d47a13dadf5987f9
Fixes: 119502592
4 files changed