tree a2e58baae8ab496162091d4faac4cc5c5237b694
parent ada91b94ab9d4daeff3937e9884e8519562531e1
author Tony Wickham <twickham@google.com> 1521580396 -0700
committer Tony Wickham <twickham@google.com> 1521580714 -0700

Hide back button in drag-n-drop and quick scrub

Add a state flag to hide the back button, used by NORMAL, SPRING_LOADED,
and FAST_OVERVIEW states.

Bug: 74390697
Change-Id: Ifdb2aa41691db4594ea597fc5b5839967711b43d