tree 84ff6b9055b4651c22883aaee66f41793ff8cee9
parent 3bbb20262b204573f1017ae596b5e068f4e7267c
author Tony Wickham <twickham@google.com> 1564014728 -0700
committer Tony Wickham <twickham@google.com> 1564609468 -0700

Add OverviewScrim to show below overview but above workspace

- Refactor some basic scrim logic to Scrim class and have
  WorkspaceAndHotseatScrim and OverviewScrim extend it
- Draw OverviewScrim under recents unless predictions are disabled, in
  which case draw it under hotseat (since that is in recents)
- Remove sysui scrim (behind status bar and nav bar) when overview is
  peeking

Bug: 132455160
Change-Id: Ia5d6f54582a4c5a70e3b2d4a98281567edd68519