Summary: This exposes an API so people can find out the resulting size of a layout calculation without changing the frame of the view.
Reviewed By: emilsjolander
Differential Revision: D4124630
fbshipit-source-id: f2b28d8a5474857cb1c92e021a1f161806826cda
Summary: Add flexbox support to UIViews via a category
Reviewed By: dshahidehpour
Differential Revision: D4002873
fbshipit-source-id: f89de3acdf8fd89c7801918dcad34ba9011dd025