Summary:
Changelog: [Internal]
FabricUIManager contains a lot of logic related to mounting items and manipulating dispatch queues, which can be safely extracted outside. Apart from decreased logical complexity, this change enables easier modification of the queuing behavior later in this stack.
Majority of the changes is caused by moving existing logic to a different class, no change in behavior expected.
Reviewed By: JoshuaGross
Differential Revision: D27271116
fbshipit-source-id: 86fe45b19bb839f96fde8ba607f72006f6401cc7
Andrei Shikov
35b575fefd