Use new Bubbles aidl method to tell WMShell when bubble bar is used or
not used.
Allows to better handle cases where taskbar (and bubble bar) get
recreated during rotation.
Bug: 357115534
Test: open an app, expand bubble bar, rotate device, check bubble
remains expanded
Flag: com.android.wm.shell.enable_bubble_bar
Change-Id: I1c77eecb2b574b3d9b33aadafd1585e1aca26bdb
Ats Jenk
96e3fd6713