86746c475f
Reason for revert:
Revealed a race condition (now reported by TSan), and breaks the scenario where a signal is deleted while firing.
Original issue's description:
> Fixing crash that can occur if signal is modified while firing.
>
> The crash occurs if a slot causes the very next slot in iteration order
> to be disconnected.
>
> BUG=webrtc:7527
>
> Review-Url: https://codereview.webrtc.org/2846593005
> Cr-Commit-Position: refs/heads/master@{#17943}
> Committed: 961c2adf1e
TBR=pthatcher@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7527
Review-Url: https://codereview.webrtc.org/2847243006
Cr-Commit-Position: refs/heads/master@{#17947}
Name: WebRTC URL: http://www.webrtc.org Version: 90 License: BSD License File: LICENSE Description: WebRTC provides real time voice and video processing functionality to enable the implementation of PeerConnection/MediaStream. Third party code used in this project is described in the file LICENSE_THIRD_PARTY.