Summary:
Implements a multi-device proxy for the Chrome debugging protocol. Each device connects
to the proxy over a single websocket connection that is able to multiplex messages to multiple
Javascript VMs. An inspector instance running in Chrome can connect to a specific VM via this
proxy.
Reviewed By: davidaurelio
Differential Revision: D4088492
fbshipit-source-id: 3ee934e98604b5a378da732e687ca05fe3d23ce0