Don't recreate touch controllers when ending gesture

Test: swipe up to overview from an app and swipe up to dismiss it during the transition
Bug: 189700453
Change-Id: I303696f90dbb236ea93e06d94a3c92d783850fa4
(cherry picked from commit 0e9ecaeea8873b576320a0240757e4d0034cdcbb)
1 file changed