tree a2c85937df49d6ab7bf254734ca4cb40df39a4e1
parent 0b2c39c7b252bea68358261364a01c05b32fc4e4
author Vadim Caen <caen@google.com> 1652291448 +0200
committer Vadim Caen <caen@google.com> 1653500797 +0200

Transfer the actual dispatcher when the window is preserved

When recreating the Activity, if the window is preserved,
onAttachedToWindow won't be called and PhoneWindow.onViewRootImplSet
won't be called either, where we set the actual dispatcher to the
Activiy's proxy dispatcher.

So when the window is preserved, we directly assign the actual Dispatcher
from the preserved Window to the new PhoneWindow

Fixes: 228571903
Test: In progress
Test: Open an app with OnBackInvokedCallback enabled, split to top,
      close the other application, do a back gesture
Change-Id: I050247501df8f6cf6cd0024a6233f88a035f6279