Improve updateInputFlinger performance

This change improves the performance of the WindowInfosListenerInvoker work done on SurfaceFlinger's background executor thread. The primary optimization made is not sending a WindowInfosReportedListener with every call to WindowInfosListener.onWindowInfosChanged. Instead, we send a new interface, WindowInfosPublisher, and a unique listener id to listeners when they're added.  Listeners call WindowInfosPublisher.ackWindowInfosReceived with their id after processing each update.

From traces taken during development, the new code is a major improvement, taking about 15% of the time spent previously on SurfaceFlinger's background thread for sending window infos. Performance with this change seems roughly in line with the performance in T.

Bug: 290377931
Test: atest WindowInfosListenerTest
Test: atest WindowInfosListenerInvokerTest
Test: manually killing system server and checking valid state on restart
Change-Id: Ib39ba935727df0bc1ab4030bcfe8301de7e64805
(cherry picked from commit acd2258a)
(cherry picked from commit e8a7ab25)
Merged-In: Ib39ba935727df0bc1ab4030bcfe8301de7e64805

This reverts commit a8ce8fc1.

Change-Id: I3a9a5b5d397d6d37e9b81070a344a0202ce0f927