This reverts commit 40261c3663fe316cfe40262c59cee993165ccf63. Reason for revert: Breaks downstream project Original change's description: > Replace sigslot usages with robocaller library. > > - Replace all the top level signals from jsep_transport_controller. > - There are still sigslot usages in this file so keep the inheritance > and that is the reason for not having a binary size gain in this CL. > > Bug: webrtc:11943 > Change-Id: I249d3b9710783aef70ba273e082ceeafe3056898 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185540 > Commit-Queue: Lahiru Ginnaliya Gamathige <glahiru@webrtc.org> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> > Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> > Cr-Commit-Position: refs/heads/master@{#32321} TBR=mbonadei@webrtc.org,kwiberg@webrtc.org,glahiru@webrtc.org Change-Id: Icf438f87c3d95940d858db3cc5848b23abb82fc4 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: webrtc:11943 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/186844 Reviewed-by: Sam Zackrisson <saza@webrtc.org> Commit-Queue: Sam Zackrisson <saza@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32324}