Skip handling input while the user is still locked

- None of the gestures work when the user is locked so
  we can just skip them.

Bug: 143107728
Test: Manual
Change-Id: I2661d58269f7eccbfcd2214792c128b432e0347c
(cherry picked from commit fc8c975880f2023ff3d0cc5caf284c704a6a37f9)
1 file changed