tree 8e81e4ac7a006a8d5fe52498e167169fd5e4d6b8
parent 13a44f239f2cb7f3c0f8ff1dd581dbbc7ed8369d
author Alejandro Nijamkin <nijamkin@google.com> 1673396723 -0800
committer Alejandro Nijamkin <nijamkin@google.com> 1673584986 -0800

Setting/getting per-screen wallpaper (1/3).

Necessary changes to support setting and getting wallpapers per-screen,
which is what's needed for the wallpaper quick switcher to apply the
selected wallpaper only to the screen whose tab is currently selected.

Setting the individual per-screen wallpaper is complete but work still
needs to be done to provide separate recents for each screen. That work
is captured in b/265066284.

Bug: 262924643
Test: manually verified that setting per-screen wallpaper works by
switching between the home screen and lock screen tabs and selecting
different wallpapers
Test: manually verified that undo/restore works as expected, especially
given the lack of per-screen recents to serve as a baseline (it always
resets to both having the same wallpaper)
Test: unit tests throughout the layers

Change-Id: I6514247977e497547c4421be6663db84217175cd