This reverts commit 32d5d3a3a3.
Bug: 174047492
Reason for revert:
Look like the WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS system flag is not supported in the pi-dev branch.
Change-Id: Iec3c28e8c148f83fc171d696b2fc67f359d03eb8
- Disallowed non system overlay windows
- Screenshot
https://screenshot.googleplex.com/77fJ9QN6pV4zFYc
Bug: 174047492
Test: manual test
Merged-In: Ia7acad6d456ce5ebea2d982d4cb063d4f28cbfff
Change-Id: Ia7acad6d456ce5ebea2d982d4cb063d4f28cbfff
(cherry picked from commit d47d8e4fc5)