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// 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_METRICS_SERVICE_CLIENT_H_
#define CHROME_BROWSER_METRICS_CHROME_METRICS_SERVICE_CLIENT_H_
#include <string>
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "chrome/browser/memory_details.h"
#include "chrome/browser/metrics/network_stats_uploader.h"
#include "components/metrics/metrics_service_client.h"
#include "components/metrics/profiler/tracking_synchronizer_observer.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
class ChromeOSMetricsProvider;
class GoogleUpdateMetricsProviderWin;
class PluginMetricsProvider;
class PrefRegistrySimple;
#if !defined(OS_CHROMEOS) && !defined(OS_IOS)
class SigninStatusMetricsProvider;
#endif
namespace base {
class FilePath;
}
namespace metrics {
class MetricsService;
class MetricsStateManager;
class ProfilerMetricsProvider;
}
// ChromeMetricsServiceClient provides an implementation of MetricsServiceClient
// that depends on chrome/.
class ChromeMetricsServiceClient
: public metrics::MetricsServiceClient,
public metrics::TrackingSynchronizerObserver,
public content::NotificationObserver {
public:
virtual ~ChromeMetricsServiceClient();
// Factory function.
static scoped_ptr<ChromeMetricsServiceClient> Create(
metrics::MetricsStateManager* state_manager,
PrefService* local_state);
// Registers local state prefs used by this class.
static void RegisterPrefs(PrefRegistrySimple* registry);
// metrics::MetricsServiceClient:
virtual void SetMetricsClientId(const std::string& client_id) OVERRIDE;
virtual bool IsOffTheRecordSessionActive() OVERRIDE;
virtual std::string GetApplicationLocale() OVERRIDE;
virtual bool GetBrand(std::string* brand_code) OVERRIDE;
virtual metrics::SystemProfileProto::Channel GetChannel() OVERRIDE;
virtual std::string GetVersionString() OVERRIDE;
virtual void OnLogUploadComplete() OVERRIDE;
virtual void StartGatheringMetrics(
const base::Closure& done_callback) OVERRIDE;
virtual void CollectFinalMetrics(const base::Closure& done_callback)
OVERRIDE;
virtual scoped_ptr<metrics::MetricsLogUploader> CreateUploader(
const std::string& server_url,
const std::string& mime_type,
const base::Callback<void(int)>& on_upload_complete) OVERRIDE;
virtual base::string16 GetRegistryBackupKey() OVERRIDE;
metrics::MetricsService* metrics_service() { return metrics_service_.get(); }
void LogPluginLoadingError(const base::FilePath& plugin_path);
private:
explicit ChromeMetricsServiceClient(
metrics::MetricsStateManager* state_manager);
// Completes the two-phase initialization of ChromeMetricsServiceClient.
void Initialize();
// Callback that continues the init task by loading plugin information.
void OnInitTaskGotHardwareClass();
// Called after the Plugin init task has been completed that continues the
// init task by launching a task to gather Google Update statistics.
void OnInitTaskGotPluginInfo();
// Called after GoogleUpdate init task has been completed that continues the
// init task by loading profiler data.
void OnInitTaskGotGoogleUpdateData();
// TrackingSynchronizerObserver:
virtual void ReceivedProfilerData(
const tracked_objects::ProcessDataSnapshot& process_data,
int process_type) OVERRIDE;
virtual void FinishedReceivingProfilerData() OVERRIDE;
// Callbacks for various stages of final log info collection. Do not call
// these directly.
void OnMemoryDetailCollectionDone();
void OnHistogramSynchronizationDone();
// Records metrics about the switches present on the command line.
void RecordCommandLineMetrics();
// Registers |this| as an observer for notifications which indicate that a
// user is performing work. This is useful to allow some features to sleep,
// until the machine becomes active, such as precluding UMA uploads unless
// there was recent activity.
void RegisterForNotifications();
// content::NotificationObserver:
virtual void Observe(int type,
const content::NotificationSource& source,
const content::NotificationDetails& details) OVERRIDE;
#if defined(OS_WIN)
// Counts (and removes) the browser crash dump attempt signals left behind by
// any previous browser processes which generated a crash dump.
void CountBrowserCrashDumpAttempts();
#endif // OS_WIN
base::ThreadChecker thread_checker_;
// Weak pointer to the MetricsStateManager.
metrics::MetricsStateManager* metrics_state_manager_;
// The MetricsService that |this| is a client of.
scoped_ptr<metrics::MetricsService> metrics_service_;
content::NotificationRegistrar registrar_;
// On ChromeOS, holds a weak pointer to the ChromeOSMetricsProvider instance
// that has been registered with MetricsService. On other platforms, is NULL.
ChromeOSMetricsProvider* chromeos_metrics_provider_;
NetworkStatsUploader network_stats_uploader_;
// Saved callback received from CollectFinalMetrics().
base::Closure collect_final_metrics_done_callback_;
// Indicates that collect final metrics step is running.
bool waiting_for_collect_final_metrics_step_;
// Number of async histogram fetch requests in progress.
int num_async_histogram_fetches_in_progress_;
// The ProfilerMetricsProvider instance that was registered with
// MetricsService. Has the same lifetime as |metrics_service_|.
metrics::ProfilerMetricsProvider* profiler_metrics_provider_;
#if defined(ENABLE_PLUGINS)
// The PluginMetricsProvider instance that was registered with
// MetricsService. Has the same lifetime as |metrics_service_|.
PluginMetricsProvider* plugin_metrics_provider_;
#endif
#if defined(OS_WIN)
// The GoogleUpdateMetricsProviderWin instance that was registered with
// MetricsService. Has the same lifetime as |metrics_service_|.
GoogleUpdateMetricsProviderWin* google_update_metrics_provider_;
#endif
#if !defined(OS_CHROMEOS) && !defined(OS_IOS)
// The SigninStatusMetricsProvider instance that was registered with
// MetricsService. Has the same lifetime as |metrics_service_|.
SigninStatusMetricsProvider* signin_status_metrics_provider_;
#endif
// Callback that is called when initial metrics gathering is complete.
base::Closure finished_gathering_initial_metrics_callback_;
// The MemoryGrowthTracker instance that tracks memory usage growth in
// MemoryDetails.
MemoryGrowthTracker memory_growth_tracker_;
base::WeakPtrFactory<ChromeMetricsServiceClient> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(ChromeMetricsServiceClient);
};
#endif // CHROME_BROWSER_METRICS_CHROME_METRICS_SERVICE_CLIENT_H_
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