Merge changes from topic "presubmit-am-bc79a9a41aaf49ac813fd4322be9fb10"
* changes:
[automerge] Hide taskbar when launcher receives nav and keyguard showing 2p: c750e3d3 2p: ea034204
[automerge] Hide taskbar when launcher receives nav and keyguard showing 2p: c750e3d3
Hide taskbar when launcher receives nav and keyguard showing