db758c2589
Reason for revert:
Breaks Chromium bots.
https://build.chromium.org/p/chromium.webrtc.fyi/builders/Mac%20Builder/builds/27340/steps/generate_build_files/logs/stdio
Original issue's description:
> Make it possible for tests to set up trace event handlers.
>
> As it is now, the first time a TRACE_EVENT... is called, the result from
> the current handler is stored in a static const variable, and subsequent
> calls will use that value regardless of changes to the handler.
>
> This is a problem if a test wants to use another handler.
>
> BUG=None
>
> Review-Url: https://codereview.webrtc.org/3002663002
> Cr-Commit-Position: refs/heads/master@{#19382}
> Committed: a973265622
TBR=hbos@webrtc.org,kwiberg@webrtc.org,mbonadei@webrtc.org,kjellander@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=None
Review-Url: https://codereview.webrtc.org/2997963002
Cr-Commit-Position: refs/heads/master@{#19383}
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.