4898bbcd46
This is a reland of commit 235af46635
Reason for revert:
LUCI Bisection has identified this change as the cause of a test failure. See the analysis: https://ci.chromium.org/ui/p/chromium/bisection/test-analysis/b/5650878292819968
Fix: initialize TraceEventHandle to 0 to avoid
MemorySanitizer: use-of-uninitialized-value error
Original change's description:
> [tracing] Cleanup up trace_log
>
> This CL cleans up some of the unused functionalities in trace_log
> - legacy metadata
> - member AddTraceEvent* function: replaced by static ones
> - SetTrackDescriptor: covered by TrackNameRecorder
> We no longer update SetTrackDescriptor on UpdateProcessLabel;
> this is unnecessary because TrackNameRecorder calls
> SetTrackDescriptor when the session ends.
>
> Bug: 343404899
> Change-Id: Ia3c4524cd3b3dd4d4ad12a0348e60480b5d03f67
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6120057
> Reviewed-by: Derek Schuff <dschuff@chromium.org>
> Reviewed-by: Gabriel Charette <gab@chromium.org>
> Reviewed-by: Alexander Timin <altimin@chromium.org>
> Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
> Reviewed-by: Mikhail Khokhlov <khokhlov@google.com>
> Cr-Commit-Position: refs/heads/main@{#1403710}
Bug: 343404899
Change-Id: Icb14722297b39f3b8fc7be0985452182a7b5846f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6163823
Reviewed-by: Alexander Timin <altimin@chromium.org>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Reviewed-by: Mikhail Khokhlov <khokhlov@google.com>
Reviewed-by: Derek Schuff <dschuff@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1404225}