Cache hole punch, and flipped image shaders from pip

Test: Confirm no cache misses with perfetto on
maps open and close in gesture and 2-but nav
open recents and dismiss up
return from recents with tap
return from recents with pull up
slide in news thing on left side
pull down notification shade
youtube go to full scren landscape
swipe up from bottom to get to pip
move pip around
return from pip
rotate landscape/protrait in messages app

Bug: b/184631553

Change-Id: I3dd9568b2836d66311333001fb2e2e01c251cde1