commit ac6d791c75a1be5d0842416b6909907357bc00a2
author Riddle Hsu <riddlehsu@google.com> Thu Dec 10 00:25:02 2020 +0800
committer Riddle Hsu <riddlehsu@google.com> Tue Dec 29 05:33:11 2020 +0000
tree f0dc5df83db870a32587a682da81bae23ed1b149
parent 941ad3a5f081aae28e33a93bc8344f78534fdedd

Reland "Do not add display area features for untrusted display"

Untrusted display (e.g. virtual display created by app, a common
case is screen recorder) doesn't support system decorations. There
is nothing to do with additional features.

This saves 31 areas (according to current features) per untrusted
display. And also reduce the cost of traversing entire hierarchy.

Reland since making DisplayContent#getWindowingLayer() valid by
commit 941ad3a.

Fixes: 175179353
Test: DisplayAreaPolicyTests#testEmptyFeaturesOnUntrustedDisplay
Test: Start Desktop Head Unit (simulation of Auto)
Change-Id: I3929d17eab6bed3f1358d6782e363120f0edd385