tree 049913364dbd7605143b48b77ea77a9cc2e43326
parent 5be4075727a033c2b170020e1bbe8f1270326761
author Winson Chung <winsonc@google.com> 1525898751 -0700
committer Winson Chung <winsonc@google.com> 1525900252 -0700

Fix lock contention while swiping up

- Don't lock when making WM calls (only lock when resetting), and use own
  executor since the background executor is fixed to only two threads and
  other things can be running on them already (like task loading).

Bug: 78585335

Change-Id: I73dfc380dd99908cfc30ff7c164a9677a5a126e0