tree eb1428aed77e56c5240e8fc3ab897f078e1a910d
parent 94e07022c2514e6b13311c5c8dcf3b4a3514aada
author rongliu <rongliu@google.com> 1507163430 -0700
committer rongliu <rongliu@google.com> 1507164623 -0700

Add a flag to virtual display to indicates that content on this
display need to be destroyed once the display is removed.
Then apply this flag to VR virtual display.

Change-Id: Icb5aa1280b6ebac5941afda1cc1b94b258ce44f4
Bug: 67420451
Test: Manually. "adb shell am stack list" does not show contents
from virtual display anymore after it's released.