| // 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. |
| |
| #ifndef CHROME_BROWSER_TRACING_BACKGROUND_TRACING_METRICS_PROVIDER_H_ |
| #define CHROME_BROWSER_TRACING_BACKGROUND_TRACING_METRICS_PROVIDER_H_ |
| |
| #include "components/metrics/metrics_provider.h" |
| |
| namespace tracing { |
| |
| // Provides trace log metrics collected using BackgroundTracingManager to UMA |
| // proto. Background tracing uploads metrics of larger size compared to UMA |
| // histograms and it is better to upload them as independent metrics rather |
| // than part of UMA histograms log. Uploading as independent logs is useful to |
| // track upload sizes, and also to make sure the UMA metrics are not discarded |
| // from saving to disk due to large size of the logs. The background tracing |
| // manager will make sure traces are only uploaded on WiFi, or the traces are |
| // small when uploading over data, to make sure weekly upload quota for UMA |
| // metrics is not affected on Android. |
| class BackgroundTracingMetricsProvider : public metrics::MetricsProvider { |
| public: |
| BackgroundTracingMetricsProvider(); |
| ~BackgroundTracingMetricsProvider() override; |
| |
| // metrics::MetricsProvider: |
| void Init() override; |
| bool HasIndependentMetrics() override; |
| void ProvideIndependentMetrics( |
| base::OnceCallback<void(bool)> done_callback, |
| metrics::ChromeUserMetricsExtension* uma_proto, |
| base::HistogramSnapshotManager* snapshot_manager) override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(BackgroundTracingMetricsProvider); |
| }; |
| |
| } // namespace tracing |
| |
| #endif // CHROME_BROWSER_TRACING_BACKGROUND_TRACING_METRICS_PROVIDER_H_ |