When we restore bubbles after taskbar is recreated, we should not modify
the bubble bar state as part of restoring the bubble views. Bubble bar
state is restored separately.
Create new helper method to restore bubbles without affecting bubble bar
state.
Bug: 357115534
Test: have bubble bar expanded on top of an app, rotate device multiple
times back and forth, check that bubble bar remains expanded
Flag: com.android.wm.shell.enable_bubble_bar
Change-Id: Ifc9c391a1a367535daa3b83283fe145824294bcc
Ats Jenk
8ed27029d4