Summary:
The diff implements a way to use `SurfaceHandler` without using `SurfaceHandler` directly for testing and transitioning purposes. If a boolean flag is enabled all calls related to surface management will be redirected to an appropriate `SurfaceHandler` via `SurfaceManager`.
Changelog: [Internal] Fabric-specific internal change.
Reviewed By: sammy-SC
Differential Revision: D26125955
fbshipit-source-id: 8760c237d486897ea0c32867c921d445a7f24edc
Valentin Shergin