| // Copyright 2019 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/tracing/background_tracing_metrics_provider.h" |
| |
| #include <utility> |
| |
| #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() {} |
| BackgroundTracingMetricsProvider::~BackgroundTracingMetricsProvider() {} |
| |
| void BackgroundTracingMetricsProvider::Init() { |
| // TODO(ssid): SetupBackgroundTracingFieldTrial() should be called here. |
| } |
| |
| bool BackgroundTracingMetricsProvider::HasIndependentMetrics() { |
| return content::BackgroundTracingManager::GetInstance()->HasTraceToUpload(); |
| } |
| |
| void BackgroundTracingMetricsProvider::ProvideIndependentMetrics( |
| base::OnceCallback<void(bool)> done_callback, |
| metrics::ChromeUserMetricsExtension* uma_proto, |
| base::HistogramSnapshotManager* snapshot_manager) { |
| auto* tracing_manager = content::BackgroundTracingManager::GetInstance(); |
| auto serialized_trace = tracing_manager->GetLatestTraceToUpload(); |
| if (serialized_trace.empty()) { |
| std::move(done_callback).Run(false); |
| return; |
| } |
| metrics::TraceLog* log = uma_proto->add_trace_log(); |
| log->set_raw_data(std::move(serialized_trace)); |
| std::move(done_callback).Run(true); |
| } |
| |
| } // namespace tracing |