tree 233efcedeb306471eaa8425cbeb19d597f3c2af7
parent 37131865d03edbbeb7e5a59dbbf3f75b19b7641a
author Robert Carr <racarr@google.com> 1562017347 -0700
committer Robert Carr <racarr@google.com> 1562018678 -0700

SurfaceFlinger: Hide Z order relatives when relativeOf is hiddenByPolicy.

Now that we are using relative Z for the SurfaceView background we
encounter yet another edge case. During Surface preservation we reparent
the SurfaceView from one WindowStateAnimator to a second. When we reparent
it we hide the old surface and show the new one. However at this time
the background is still relative to the OLD surface, which is Z ordered
on top of the new Surface. To fix this we ensure that if a layers relative
Z parent is hidden by policy the layer is also invisible.

Bug: 136061599
Test: TransactionTest#HideRelativeParentHidesLayer
Change-Id: I941fb9060dab79dba89300a5c86d6ea1a69f577d