tree 69af91c2c5deb0bc5393cecc315a53bd54d76e67
parent 8818f98f336edd7568eaa0404a7081b9f7c24a4b
author Vishnu Nair <vishnun@google.com> 1631242600 -0700
committer Vishnu Nair <vishnun@google.com> 1631242644 -0700

SurfaceView: Fix SurfaceControl synchronization issues

Hold the surface control lock in PositionUpdateListener
callbacks before checking if the SurfaceControl will
be null. UI tread might release it after the checks
causing crashes.

Also fix a case where the ViewRootImpl may be null
in the positionChanged callback.

Bug: 199261027
Test: run steps in bug
Test: go/wm-smoke
Change-Id: I5a4cac35fe14356389b29268fddf9703b25c03aa