[WIP] Fix flakiness in TracingServiceInstantiate [chromium/src : main]

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Mikhail Khokhlov (Gerrit)

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May 18, 2026, 6:32:14 AM (3 days ago) May 18
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Mikhail Khokhlov (Gerrit)

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May 18, 2026, 6:57:57 AM (3 days ago) May 18
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Etienne Pierre-Doray (Gerrit)

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May 18, 2026, 9:16:17 AM (3 days ago) May 18
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    Mikhail Khokhlov (Gerrit)

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    May 18, 2026, 10:18:25 AM (3 days ago) May 18
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    Mikhail Khokhlov voted Commit-Queue+2

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    Chromium LUCI CQ (Gerrit)

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    May 18, 2026, 10:21:41 AM (3 days ago) May 18
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    Chromium LUCI CQ submitted the change

    Change information

    Commit message:
    Fix flakiness in TracingServiceInstantiate

    Update TestTracingClient to wait for OnTracingEnabled instead of
    RequestBufferUsage response. Using RequestBufferUsage as a signal
    for tracing start was unreliable and could lead to race conditions
    where DisableTracing is called before the service has fully enabled
    tracing.

    AI tools were used in generating the code.
    Bug: 508373987
    Change-Id: Ia3f77b1968848d9f9286b820c16ca91e0fd47aa4
    Reviewed-by: Etienne Pierre-Doray <etie...@chromium.org>
    Commit-Queue: Mikhail Khokhlov <khok...@google.com>
    Cr-Commit-Position: refs/heads/main@{#1632147}
    Files:
    • M services/tracing/tracing_service_unittest.cc
    Change size: S
    Delta: 1 file changed, 12 insertions(+), 8 deletions(-)
    Branch: refs/heads/main
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    Gerrit-Project: chromium/src
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    Gerrit-Change-Id: Ia3f77b1968848d9f9286b820c16ca91e0fd47aa4
    Gerrit-Change-Number: 7828222
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    Gerrit-Owner: Mikhail Khokhlov <khok...@google.com>
    Gerrit-Reviewer: Chromium LUCI CQ <chromiu...@luci-project-accounts.iam.gserviceaccount.com>
    Gerrit-Reviewer: Etienne Pierre-Doray <etie...@chromium.org>
    Gerrit-Reviewer: Mikhail Khokhlov <khok...@google.com>
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