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.
4
5#ifndef CHROME_BROWSER_METRICS_GOOGLE_UPDATE_METRICS_PROVIDER_WIN_H_
6#define CHROME_BROWSER_METRICS_GOOGLE_UPDATE_METRICS_PROVIDER_WIN_H_
7
8#include "base/bind.h"
9#include "base/macros.h"
10#include "base/memory/weak_ptr.h"
11#include "chrome/installer/util/google_update_settings.h"
12#include "components/metrics/metrics_provider.h"
13
14// GoogleUpdateMetricsProviderWin is responsible for filling out the
15// GoogleUpdate of the UMA SystemProfileProto.
16class GoogleUpdateMetricsProviderWin : public metrics::MetricsProvider {
17 public:
18  GoogleUpdateMetricsProviderWin();
19  virtual ~GoogleUpdateMetricsProviderWin();
20
21  // Fetches Google Update data asynchronously and calls |done_callback| when
22  // done.
23  void GetGoogleUpdateData(const base::Closure& done_callback);
24
25  // metrics::MetricsProvider
26  virtual void ProvideSystemProfileMetrics(
27      metrics::SystemProfileProto* system_profile_proto) OVERRIDE;
28
29 private:
30  // This is a small helper struct containing the Google Update metrics state.
31  struct GoogleUpdateMetrics {
32    GoogleUpdateMetrics();
33    ~GoogleUpdateMetrics();
34
35    // Defines whether this is a user-level or system-level install.
36    bool is_system_install;
37
38    // The time at which Google Update last started an automatic update check.
39    base::Time last_started_automatic_update_check;
40
41    // The time at which Google Update last successfully received update
42    // information from Google servers.
43    base::Time last_checked;
44
45    // Details about Google Update's attempts to update itself.
46    GoogleUpdateSettings::ProductData google_update_data;
47
48    // Details about Google Update's attempts to update this product.
49    GoogleUpdateSettings::ProductData product_data;
50  };
51
52  // Retrieve the Google Update data on the blocking pool.
53  static GoogleUpdateMetrics GetGoogleUpdateDataOnBlockingPool();
54
55  // Receives |google_update_metrics| from a blocking pool thread and runs
56  // |done_callback|.
57  void ReceiveGoogleUpdateData(
58      const base::Closure& done_callback,
59      const GoogleUpdateMetrics& google_update_metrics);
60
61  // Google Update metrics that were fetched via GetGoogleUpdateData(). Will be
62  // filled in only after the successful completion of GetGoogleUpdateData().
63  GoogleUpdateMetrics google_update_metrics_;
64
65  base::WeakPtrFactory<GoogleUpdateMetricsProviderWin> weak_ptr_factory_;
66
67  DISALLOW_COPY_AND_ASSIGN(GoogleUpdateMetricsProviderWin);
68};
69
70#endif  // CHROME_BROWSER_METRICS_GOOGLE_UPDATE_METRICS_PROVIDER_WIN_H_
71