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

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "services/tracing/public/cpp/background_tracing/background_tracing_agent_impl.h"

#include <memory>

#include "base/metrics/metrics_hashes.h"
#include "base/metrics/statistics_recorder.h"
#include "base/trace_event/trace_event.h"
#include "mojo/public/cpp/bindings/self_owned_receiver.h"
#include "services/tracing/public/cpp/perfetto/macros.h"
#include "third_party/perfetto/protos/perfetto/trace/track_event/chrome_histogram_sample.pbzero.h"

namespace tracing {

BackgroundTracingAgentImpl::BackgroundTracingAgentImpl(
    mojo::PendingRemote<mojom::BackgroundTracingAgentClient> client)
    : … { … }

BackgroundTracingAgentImpl::~BackgroundTracingAgentImpl() = default;

void BackgroundTracingAgentImpl::SetUMACallback(
    tracing::mojom::BackgroundTracingRulePtr rule,
    const std::string& histogram_name,
    int32_t histogram_lower_value,
    int32_t histogram_upper_value) { … }

void BackgroundTracingAgentImpl::ClearUMACallback(
    tracing::mojom::BackgroundTracingRulePtr rule) { … }

void BackgroundTracingAgentImpl::OnHistogramChanged(
    const std::string& rule_id,
    base::Histogram::Sample histogram_lower_value,
    base::Histogram::Sample histogram_upper_value,
    const char* histogram_name,
    uint64_t name_hash,
    base::Histogram::Sample actual_value) { … }

}  // namespace tracing