1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef CHROME_BROWSER_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_
6 #define CHROME_BROWSER_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_
8 #include "base/basictypes.h"
9 #include "base/metrics/user_metrics.h"
10 #include "base/process/kill.h"
11 #include "components/metrics/metrics_provider.h"
12 #include "content/public/browser/browser_child_process_observer.h"
13 #include "content/public/browser/notification_observer.h"
14 #include "content/public/browser/notification_registrar.h"
16 class PrefRegistrySimple;
19 class RenderProcessHost;
23 // ChromeStabilityMetricsProvider gathers and logs Chrome-specific stability-
25 class ChromeStabilityMetricsProvider
26 : public metrics::MetricsProvider,
27 public content::BrowserChildProcessObserver,
28 public content::NotificationObserver {
30 ChromeStabilityMetricsProvider();
31 virtual ~ChromeStabilityMetricsProvider();
33 // metrics::MetricsDataProvider:
34 virtual void OnRecordingEnabled() OVERRIDE;
35 virtual void OnRecordingDisabled() OVERRIDE;
36 virtual void ProvideStabilityMetrics(
37 metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
38 virtual void ClearSavedStabilityMetrics() OVERRIDE;
40 // Registers local state prefs used by this class.
41 static void RegisterPrefs(PrefRegistrySimple* registry);
44 // content::NotificationObserver:
45 virtual void Observe(int type,
46 const content::NotificationSource& source,
47 const content::NotificationDetails& details) OVERRIDE;
49 // content::BrowserChildProcessObserver:
50 virtual void BrowserChildProcessCrashed(
51 const content::ChildProcessData& data) OVERRIDE;
53 // Logs the initiation of a page load and uses |web_contents| to do
54 // additional logging of the type of page loaded.
55 void LogLoadStarted(content::WebContents* web_contents);
57 // Records a renderer process crash.
58 void LogRendererCrash(content::RenderProcessHost* host,
59 base::TerminationStatus status,
62 // Records a renderer process hang.
63 void LogRendererHang();
65 // Registrar for receiving stability-related notifications.
66 content::NotificationRegistrar registrar_;
68 DISALLOW_COPY_AND_ASSIGN(ChromeStabilityMetricsProvider);
71 #endif // CHROME_BROWSER_METRICS_CHROME_STABILITY_METRICS_PROVIDER_H_