chrome/browser/metrics/network_metrics_provider.h

   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_NETWORK_METRICS_PROVIDER_H_
   6 #define CHROME_BROWSER_METRICS_NETWORK_METRICS_PROVIDER_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/memory/weak_ptr.h"
  11 #include "components/metrics/metrics_provider.h"
  12 #include "components/metrics/proto/system_profile.pb.h"
  13 #include "net/base/net_util.h"
  14 #include "net/base/network_change_notifier.h"
  15
  16 // Registers as observer with net::NetworkChangeNotifier and keeps track of
  17 // the network environment.
  18 class NetworkMetricsProvider
  19     : public metrics::MetricsProvider,
  20       public net::NetworkChangeNotifier::ConnectionTypeObserver {
  21  public:
  22   NetworkMetricsProvider();
  23   virtual ~NetworkMetricsProvider();
  24
  25   // metrics::MetricsProvider:
  26   virtual void ProvideSystemProfileMetrics(
  27       metrics::SystemProfileProto* system_profile) OVERRIDE;
  28
  29   // ConnectionTypeObserver:
  30   virtual void OnConnectionTypeChanged(
  31       net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
  32
  33  private:
  34   metrics::SystemProfileProto::Network::ConnectionType
  35   GetConnectionType() const;
  36   metrics::SystemProfileProto::Network::WifiPHYLayerProtocol
  37   GetWifiPHYLayerProtocol() const;
  38
  39   // Posts a call to net::GetWifiPHYLayerProtocol on the blocking pool.
  40   void ProbeWifiPHYLayerProtocol();
  41   // Callback from the blocking pool with the result of
  42   // net::GetWifiPHYLayerProtocol.
  43   void OnWifiPHYLayerProtocolResult(net::WifiPHYLayerProtocol mode);
  44
  45   // True if |connection_type_| changed during the lifetime of the log.
  46   bool connection_type_is_ambiguous_;
  47   // The connection type according to net::NetworkChangeNotifier.
  48   net::NetworkChangeNotifier::ConnectionType connection_type_;
  49
  50   // True if |wifi_phy_layer_protocol_| changed during the lifetime of the log.
  51   bool wifi_phy_layer_protocol_is_ambiguous_;
  52   // The PHY mode of the currently associated access point obtained via
  53   // net::GetWifiPHYLayerProtocol.
  54   net::WifiPHYLayerProtocol wifi_phy_layer_protocol_;
  55
  56   base::WeakPtrFactory<NetworkMetricsProvider> weak_ptr_factory_;
  57
  58   DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider);
  59 };
  60
  61 #endif  // CHROME_BROWSER_METRICS_NETWORK_METRICS_PROVIDER_H_