tree ad566053ac885ed77234ab6006a8ee0bb232b203
parent 459d5bd503c11478637a0f61f7c952eda1127e74
author Bryce Lee <brycelee@google.com> 1646345737 -0800
committer Bryce Lee <brycelee@google.com> 1646760961 -0800

Clear reference to DreamActivity window.

This changelist clears the reference to the DreamActivity window once
the activity is cleared in DreamService. Holding onto the reference
will lead to a DreamActivity instance leak.

Test: verified leak no longer present through hprof
Bug: 221285764
Change-Id: I1494bcdeaa1b23c0006867ff8eb1806bd5206eba