Histogram for UMA log upload connection type.

components/metrics/net/network_metrics_provider.h

Index: components/metrics/net/network_metrics_provider.h
diff --git a/components/metrics/net/network_metrics_provider.h b/components/metrics/net/network_metrics_provider.h
index ffdc017d98fe0ccd3d3e601a2b7a38cad2c9c857..f1956a8037927ab26e581471b5fbd17939362e8d 100644
--- a/components/metrics/net/network_metrics_provider.h
+++ b/components/metrics/net/network_metrics_provider.h
@@ -31,6 +31,11 @@ class NetworkMetricsProvider
   // can be used to get whether current connection type is cellular.
   base::Callback<void(bool*)> GetConnectionCallback();
 
+  // Returns true if the connection type is 2G, 3G, or 4G.
+  bool IsCellularConnection() const;
+
+  SystemProfileProto::Network::ConnectionType GetConnectionType() const;
+
  private:
   // MetricsProvider:
   void OnDidCreateMetricsLog() override;
@@ -40,7 +45,6 @@ class NetworkMetricsProvider
   void OnConnectionTypeChanged(
       net::NetworkChangeNotifier::ConnectionType type) override;
 
-  SystemProfileProto::Network::ConnectionType GetConnectionType() const;
   SystemProfileProto::Network::WifiPHYLayerProtocol GetWifiPHYLayerProtocol()
       const;
 
@@ -56,9 +60,6 @@ class NetworkMetricsProvider
       const WifiAccessPointInfoProvider::WifiAccessPointInfo& info,
       SystemProfileProto::Network* network_proto);
 
-  // Returns true if the connection type is 2G, 3G, or 4G.
-  bool IsCellularConnection();
-
   // Assigns the passed |is_cellular_out| parameter based on whether current
   // network connection is cellular.
   void GetIsCellularConnection(bool* is_cellular_out);