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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_METRICS_CONTENT_CONTENT_STABILITY_METRICS_PROVIDER_H_
#define COMPONENTS_METRICS_CONTENT_CONTENT_STABILITY_METRICS_PROVIDER_H_
#include <memory>
#include "base/gtest_prod_util.h"
#include "base/scoped_multi_source_observation.h"
#include "base/scoped_observation.h"
#include "build/build_config.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"
#include "content/public/browser/render_process_host_creation_observer.h"
#include "content/public/browser/render_process_host_observer.h"
#if BUILDFLAG(IS_ANDROID)
#include "components/crash/content/browser/crash_metrics_reporter_android.h"
#endif // BUILDFLAG(IS_ANDROID)
class PrefService;
namespace metrics {
class ExtensionsHelper;
// ContentStabilityMetricsProvider gathers and logs Chrome-specific stability-
// related metrics.
class ContentStabilityMetricsProvider
: public MetricsProvider,
public content::BrowserChildProcessObserver,
#if BUILDFLAG(IS_ANDROID)
public crash_reporter::CrashMetricsReporter::Observer,
#endif
public content::RenderProcessHostCreationObserver,
public content::RenderProcessHostObserver,
public content::NotificationObserver {
public:
// |extensions_helper| is used to determine if a process corresponds to an
// extension and is optional. If an ExtensionsHelper is not supplied it is
// assumed the process does not correspond to an extension.
ContentStabilityMetricsProvider(
PrefService* local_state,
std::unique_ptr<ExtensionsHelper> extensions_helper);
ContentStabilityMetricsProvider(const ContentStabilityMetricsProvider&) =
delete;
ContentStabilityMetricsProvider& operator=(
const ContentStabilityMetricsProvider&) = delete;
~ContentStabilityMetricsProvider() override;
// MetricsProvider:
void OnRecordingEnabled() override;
void OnRecordingDisabled() override;
#if BUILDFLAG(IS_ANDROID)
// A couple Local-State-pref-based stability counts are retained for Android
// WebView. Other platforms, including Android Chrome and WebLayer, should use
// Stability.Counts2 as the source of truth for these counts.
void ProvideStabilityMetrics(
SystemProfileProto* system_profile_proto) override;
void ClearSavedStabilityMetrics() override;
#endif // BUILDFLAG(IS_ANDROID)
private:
FRIEND_TEST_ALL_PREFIXES(ContentStabilityMetricsProviderTest,
BrowserChildProcessObserverGpu);
FRIEND_TEST_ALL_PREFIXES(ContentStabilityMetricsProviderTest,
BrowserChildProcessObserverUtility);
FRIEND_TEST_ALL_PREFIXES(ContentStabilityMetricsProviderTest,
NotificationObserver);
FRIEND_TEST_ALL_PREFIXES(ContentStabilityMetricsProviderTest,
ExtensionsNotificationObserver);
// content::RenderProcessHostCreationObserver:
void OnRenderProcessHostCreated(content::RenderProcessHost* host) override;
// content::RenderProcessHostObserver:
void RenderProcessExited(
content::RenderProcessHost* host,
const content::ChildProcessTerminationInfo& info) override;
void RenderProcessHostDestroyed(content::RenderProcessHost* host) override;
// content::NotificationObserver:
void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) override;
// content::BrowserChildProcessObserver:
void BrowserChildProcessCrashed(
const content::ChildProcessData& data,
const content::ChildProcessTerminationInfo& info) override;
void BrowserChildProcessLaunchedAndConnected(
const content::ChildProcessData& data) override;
void BrowserChildProcessLaunchFailed(
const content::ChildProcessData& data,
const content::ChildProcessTerminationInfo& info) override;
#if BUILDFLAG(IS_ANDROID)
// crash_reporter::CrashMetricsReporter::Observer:
void OnCrashDumpProcessed(
int rph_id,
const crash_reporter::CrashMetricsReporter::ReportedCrashTypeSet&
reported_counts) override;
base::ScopedObservation<crash_reporter::CrashMetricsReporter,
crash_reporter::CrashMetricsReporter::Observer>
scoped_observation_{this};
#endif // BUILDFLAG(IS_ANDROID)
StabilityMetricsHelper helper_;
base::ScopedMultiSourceObservation<content::RenderProcessHost,
content::RenderProcessHostObserver>
host_observation_{this};
// Registrar for receiving stability-related notifications.
content::NotificationRegistrar registrar_;
std::unique_ptr<ExtensionsHelper> extensions_helper_;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_CONTENT_CONTENT_STABILITY_METRICS_PROVIDER_H_
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