Moves NetworkMetricsProvider to //components/metrics.

components/metrics/net/network_metrics_provider.h

 // 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_
+#ifndef COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
+#define COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "chrome/browser/metrics/wifi_access_point_info_provider.h"
 #include "components/metrics/metrics_provider.h"
+#include "components/metrics/net/wifi_access_point_info_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();
+  // Creates a NetworkMetricsProvider, where |io_task_runner| is used to post
+  // network info collection tasks.
+  explicit NetworkMetricsProvider(base::TaskRunner* io_task_runner);
   virtual ~NetworkMetricsProvider();
 
  private:
   // metrics::MetricsProvider:
   virtual void OnDidCreateMetricsLog() OVERRIDE;
   virtual void ProvideSystemProfileMetrics(
       metrics::SystemProfileProto* system_profile) OVERRIDE;
 
   // ConnectionTypeObserver:
   virtual void OnConnectionTypeChanged(
       net::NetworkChangeNotifier::ConnectionType type) OVERRIDE;
 
   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);
 
   // Writes info about the wireless access points that this system is
   // connected to.
   void WriteWifiAccessPointProto(
       const WifiAccessPointInfoProvider::WifiAccessPointInfo& info,
       metrics::SystemProfileProto::Network* network_proto);
 
+  // Task runner used for blocking file I/O.
+  base::TaskRunner* io_task_runner_;
+
   // 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_;
 
   // Helper object for retrieving connected wifi access point information.
   scoped_ptr<WifiAccessPointInfoProvider> wifi_access_point_info_provider_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkMetricsProvider);
 };
 
-#endif  // CHROME_BROWSER_METRICS_NETWORK_METRICS_PROVIDER_H_
+#endif  // COMPONENTS_METRICS_NET_NETWORK_METRICS_PROVIDER_H_