Workaround to safely show ambient/HUN views.

Temporary workaround to get things rolling while a greater fix is
incoming.  This reverts behavior to essentially inflating all
HUN/ambient content views.

Bug: 117933032
Bug: 117894786
Test: manual, runtest systemui
Change-Id: I731ec6e320d1813a8bbca52ceb21c1d8bb4e73ff