Revert "DisplayContent: Don't force-update parent if layering didn't change" This reverts commit 2a1ef7a72fa99133e9d61bfda7294edbfbab8836. Reason for revert: Droidfood blocking bug: 227563144 Change-Id: I41b40c780e21eb3d0757f0c9fcf15868dd72791b (cherry picked from commit efdf0b0d71d94786ed0a05fdecedf7f10a7d88ec) Merged-In: I41b40c780e21eb3d0757f0c9fcf15868dd72791b