tree d3c9be25514b305d5e7a55641568ea6621900892
parent 8625d0d8e78876747fb59c2930ee95ee58c9bd75
author vadimt <vadimt@google.com> 1571423661 -0700
committer vadimt <vadimt@google.com> 1571423661 -0700

Fixing activity leak on config change

If attachTo happens before the view is attached to window,
ViewOnDrawExecutor hooks to the tree observer twice (second time from
onViewAttachedToWindow). It only unhooks once.

Since tree observer is global, this leads to leaking the activity, and
besides, all old activities getting the events from the tree observer.

Bug: 139137636
Change-Id: Ie2641b8f3614545052fe34ad6588b070c3b82a33