chromium/components/tracing/common/background_tracing_metrics_provider.cc

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/tracing/common/background_tracing_metrics_provider.h"

#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/task/bind_post_task.h"
#include "base/task/thread_pool.h"
#include "base/time/time.h"
#include "components/metrics/content/gpu_metrics_provider.h"
#include "components/metrics/cpu_metrics_provider.h"
#include "components/metrics/metrics_features.h"
#include "components/metrics/metrics_log.h"
#include "content/public/browser/background_tracing_manager.h"
#include "third_party/metrics_proto/chrome_user_metrics_extension.pb.h"
#include "third_party/metrics_proto/trace_log.pb.h"

namespace tracing {

BackgroundTracingMetricsProvider::BackgroundTracingMetricsProvider() = default;
BackgroundTracingMetricsProvider::~BackgroundTracingMetricsProvider() = default;

void BackgroundTracingMetricsProvider::Init() { … }

std::string BackgroundTracingMetricsProvider::RecordSystemProfileMetrics() { … }

bool BackgroundTracingMetricsProvider::HasIndependentMetrics() { … }

void BackgroundTracingMetricsProvider::ProvideIndependentMetrics(
    base::OnceClosure serialize_log_callback,
    base::OnceCallback<void(bool)> done_callback,
    metrics::ChromeUserMetricsExtension* uma_proto,
    base::HistogramSnapshotManager* snapshot_manager) { … }

base::OnceCallback<bool(metrics::ChromeUserMetricsExtension*, std::string&&)>
BackgroundTracingMetricsProvider::GetEmbedderMetricsProvider() { … }

// static
void BackgroundTracingMetricsProvider::SetTrace(
    metrics::TraceLog* log,
    std::string&& compressed_trace) { … }

}  // namespace tracing