tree e881adb32ae3c948c3c1122285e92a1351600f3a
parent 7dcd4d6ed6923246105b9fba2f82e2badf34b84a
author Tony Wickham <twickham@google.com> 1589323562 -0500
committer Tony Wickham <twickham@google.com> 1589323562 -0500

Don't handle task appeared during second quick switch transition

Instead of using shared gesture state, use the swipe handler's
internal state. This ensures that only the handler that started
the new task can finish the controller for it (i.e. starting a
new gesture, which creates a new handler, will ignore the
onTaskAppeared() that the previous handler initiated).

Test: Quick switch to delayed task A, then quick switch to B right
before onTaskAppeared() such that we get onTaskAppeared() during
the transition (easier to repro if you increase animation durations
with springs off). Before this change, A appeared on top.

Bug: 156412706
Change-Id: Ic7d3cd43399005095b2e7c7382218edffefdc27b