Refactor the new private virtual display API to also support
creating public virtual displays with various characteristics.
This feature requires special permissions and is only intended
for use by the system.
Change-Id: I44dd19f37cf76ea6d6e313afe42f4a412bd96663
This change enables applications to create a private virtual
display that renders its content to a surface of its own creation.
The display is private in the sense that only the application
that owns the display is allowed to place windows upon it.
Mirroring and blanking is also disabled for these displays.
Bug: 9192512
Change-Id: I852ea07f0c7df1d244e354e3daca3a6960285ca0