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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_NETWORK_METRICS_PROVIDER_H_
#define CHROME_BROWSER_METRICS_NETWORK_METRICS_PROVIDER_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/metrics/metrics_provider.h"
#include "components/metrics/proto/system_profile.pb.h"
#include "net/base/net_util.h"
#include "net/base/network_change_notifier.h"
// Registers as observer with net::NetworkChangeNotifier and keeps track of
// the network environment.
class NetworkMetricsProvider
: public metrics::MetricsProvider,
public net::NetworkChangeNotifier::ConnectionTypeObserver {
public:
NetworkMetricsProvider();
virtual ~NetworkMetricsProvider();
// metrics::MetricsProvider:
virtual void ProvideSystemProfileMetrics(
metrics::SystemProfileProto* system_profile) OVERRIDE;
// ConnectionTypeObserver:
virtual void OnConnectionTypeChanged(
net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
private:
metrics::SystemProfileProto::Network::ConnectionType
GetConnectionType() const;
metrics::SystemProfileProto::Network::WifiPHYLayerProtocol
GetWifiPHYLayerProtocol() const;
// Posts a call to net::GetWifiPHYLayerProtocol on the blocking pool.
void ProbeWifiPHYLayerProtocol();
// Callback from the blocking pool with the result of
// net::GetWifiPHYLayerProtocol.
void OnWifiPHYLayerProtocolResult(net::WifiPHYLayerProtocol mode);
// True if |connection_type_| changed during the lifetime of the log.
bool connection_type_is_ambiguous_;
// The connection type according to net::NetworkChangeNotifier.
net::NetworkChangeNotifier::ConnectionType connection_type_;
// True if |wifi_phy_layer_protocol_| changed during the lifetime of the log.
bool wifi_phy_layer_protocol_is_ambiguous_;
// The PHY mode of the currently associated access point obtained via
// net::GetWifiPHYLayerProtocol.
net::WifiPHYLayerProtocol wifi_phy_layer_protocol_;
base::WeakPtrFactory<NetworkMetricsProvider> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider);
};
#endif // CHROME_BROWSER_METRICS_NETWORK_METRICS_PROVIDER_H_
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