We already notify renderer when a non-0 blur is about to be
applied, but this change gives additional heads up. On my device,
I saw the following latency improvements (for sending the alert,
not necessarily when it was acted upon):
- All Apps swipe transtion: 10ms early
- Taskbar All Apps button: 30ms early
Also clean up the SurfaceControl.Transactions using
try-with-resources.
Flag: com.android.launcher3.all_apps_blur
Bug: 410973453
Bug: 411292920
Bug: 411033774
Test: Log inspections; will run perf tests with ABTD
Change-Id: I640720767de71f439ba479f83db00c00eefe07dd
Andy Wickham
9e6de0876f