Summary: perf_hooks is no longer needed as these APIs are widely available in both browser and electron. Still needed in unit tests, as they run from Node Reviewed By: lblasa, aigoncharov Differential Revision: D32648253 fbshipit-source-id: 5718ea99b57f96f6858311fd0815ad18c476c99e
flipper-ui-core (TBD)
Flipper's UI, agnostic of Electron vs Browser.