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The trace is already broken and doesn't seem to be used. See bug for
more details.

Bug: 880129
Change-Id: I822f24c2367a1acb76c1eeddade6b2ceefd1355a
Reviewed-on: https://chromium-review.googlesource.com/1216083Reviewed-by: Camille Lamy <clamy@chromium.org>
Commit-Queue: Chong Zhang <chongz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590429}