tree 5f782857f8cdc42a9f17d3b99d164c8c5ab8e037
parent d7ea6fe7a4951e5b5b3b2d173c69e84f445ebd9f
author Saeid Farivar Asanjan <farivar@google.com> 1607976022 -0800
committer Saeid Farivar Asanjan <farivar@google.com> 1607994505 -0800

Fix scrollbar keeping a reference to the adapter

There was a NPE, and a memory leak because of an observer to adapter
data changes was not unregistered.

Fix: 175603917
Test: manual

Change-Id: I287ba6c651427d6a89a4f327fee23113d3b6c639
Merged-In: I4c649c59236bf406ae721092de3984b84cb8f1ac