commit cb93d80da84605849815d95aee1bed00c2f3244d
author Leon Scroggins III <scroggo@google.com> Mon Dec 13 16:09:54 2021 -0500
committer Leon Scroggins <scroggo@google.com> Tue Dec 21 20:44:17 2021 +0000
tree 7137085591c3a49c500e84c6eccd6bcfbea15a93
parent f2869ebfae17122927ad1c4895796efd48879c71

Add eLayerIsDisplayDecoration flag

When this flag is set on a BufferLayer, it should use
Composition.DISPLAY_DECORATION. The intent is that it will be set to
true once on a SurfaceControl for the ScreenDecorations, and it will
remain true, regardless of the currently used PixelFormat. When the
PixelFormat changes (e.g. from A8 to RGBA8888 to accommodate the privacy
dot), the HWC may change how it treats the layer.

Only respect the new flag if the caller has the INTERNAL_SYSTEM_WINDOW
permission.

Bug: 193170859
Test: manual
Change-Id: I1da03a88fb642fa775c192627f20459cae694951