SurfaceView needs to notify the window manager that
drawing has been completed, so that animations and such
can begin. Currently this is implemented through
having the SurfaceView user block in surfaceRedrawNeeded
(called from UI thread) until a frame has been completed.
This blocking can be unnecessary serialization during startup, and
also clumsy to implement for some users.
Test: GLSurfaceView and takeSurface API Demos, android.server.cts.SurfaceViewTests
Bug: 31850030
Change-Id: Idda02098a635f25cf392f2d59a3abbe54a1d64d4
25cfa13483