| // Copyright 2014 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_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_ |
| #define CHROME_BROWSER_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_ |
| |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "base/process/kill.h" |
| #include "components/metrics/metrics_provider.h" |
| #include "components/metrics/stability_metrics_helper.h" |
| #include "content/public/browser/browser_child_process_observer.h" |
| #include "content/public/browser/notification_observer.h" |
| #include "content/public/browser/notification_registrar.h" |
| |
| class PrefService; |
| |
| // ChromeStabilityMetricsProvider gathers and logs Chrome-specific stability- |
| // related metrics. |
| class ChromeStabilityMetricsProvider |
| : public metrics::MetricsProvider, |
| public content::BrowserChildProcessObserver, |
| public content::NotificationObserver { |
| public: |
| explicit ChromeStabilityMetricsProvider(PrefService* local_state); |
| ~ChromeStabilityMetricsProvider() override; |
| |
| // metrics::MetricsDataProvider: |
| void OnRecordingEnabled() override; |
| void OnRecordingDisabled() override; |
| void ProvideStabilityMetrics( |
| metrics::SystemProfileProto* system_profile_proto) override; |
| void ClearSavedStabilityMetrics() override; |
| |
| private: |
| FRIEND_TEST_ALL_PREFIXES(ChromeStabilityMetricsProviderTest, |
| BrowserChildProcessObserver); |
| FRIEND_TEST_ALL_PREFIXES(ChromeStabilityMetricsProviderTest, |
| NotificationObserver); |
| |
| // content::NotificationObserver: |
| void Observe(int type, |
| const content::NotificationSource& source, |
| const content::NotificationDetails& details) override; |
| |
| // content::BrowserChildProcessObserver: |
| void BrowserChildProcessCrashed( |
| const content::ChildProcessData& data, |
| int exit_code) override; |
| |
| metrics::StabilityMetricsHelper helper_; |
| |
| // Registrar for receiving stability-related notifications. |
| content::NotificationRegistrar registrar_; |
| |
| DISALLOW_COPY_AND_ASSIGN(ChromeStabilityMetricsProvider); |
| }; |
| |
| #endif // CHROME_BROWSER_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_ |