tree 318fa0a2e908188dff3c252912754c2c2edd5a67
parent c3a688a97339bbe5d01fea9d1895499a23ecf259
author vadimt <vadimt@google.com> 1571423661 -0700
committer Vadim Tryshev <vadimt@google.com> 1571427386 +0000

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
(cherry picked from commit ebb5c75344168397403edd74f8fc5e9603e41b13)