Summary:
Attempt to fix T68951888 where (1) ComponentHandle is zero, and/or (2) ComponentHandle is missing in the registry. Either will cause a crash and both should be trivial to work around. I was able to repro once accidentally in about 1/200 sessions, so I am not 100% sure if this fixes the root cause.
Changelog: [Internal]
Reviewed By: shergin
Differential Revision: D22216030
fbshipit-source-id: b6986adee6fe739ce58579a2b031a2d252e73e35
Summary:
We need to break up the `uimanager` module in order to solve circular dependencies problem (which future diff would have otherwise).
Changelog: [Internal] Fabric-specific internal change.
Reviewed By: JoshuaGross
Differential Revision: D20885163
fbshipit-source-id: 08eb1ba1d408fc0948e8d0da62380786a40973af