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[tracing] Always emit HistogramSampleTrigger as instant event

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To be consistent with other HistogramSampleTrigger event.

Change-Id: I973597a82183c1e2d301ec7046cd15084451044e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6311305
Reviewed-by: Mikhail Khokhlov <khokhlov@google.com>
Commit-Queue: Etienne Pierre-Doray <etiennep@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1427103}
This commit is contained in:
Etienne Pierre-Doray
2025-03-03 07:05:25 -08:00
committed by Chromium LUCI CQ
parent db5f579d58
commit 9c3344e40d
1 changed files with 1 additions and 1 deletions

2
services/tracing/public/cpp/background_tracing/background_tracing_agent_impl.cc

@ -92,7 +92,7 @@ void BackgroundTracingAgentImpl::OnHistogramChanged(
auto track = perfetto::NamedTrack("HistogramSamples");
uint64_t flow_id =
event_id.value_or(base::trace_event::GetNextGlobalTraceId());
TRACE_EVENT("toplevel,latency", "HistogramSampleTrigger", track,
TRACE_EVENT_INSTANT("toplevel,latency", "HistogramSampleTrigger", track,
[&](perfetto::EventContext ctx) {
perfetto::protos::pbzero::ChromeHistogramSample* new_sample =
ctx.event()->set_chrome_histogram_sample();