Report network stats in the scroll performance tests

remoting/test/fake_socket_factory.h

Index: remoting/test/fake_socket_factory.h
diff --git a/remoting/test/fake_socket_factory.h b/remoting/test/fake_socket_factory.h
index e75581824816b9c6f57db39173bfd5961fb3096d..4a028543b3e61894c533c73841750c2bf63e998e 100644
--- a/remoting/test/fake_socket_factory.h
+++ b/remoting/test/fake_socket_factory.h
@@ -53,6 +53,9 @@ class FakePacketSocketFactory : public rtc::PacketSocketFactory,
     out_of_order_rate_ = out_of_order_rate;
   }
 
+  void ResetStats();
+  base::TimeDelta GetAverageDelay();
+
   // rtc::PacketSocketFactory interface.
   rtc::AsyncPacketSocket* CreateUdpSocket(
       const rtc::SocketAddress& local_address,
@@ -119,6 +122,9 @@ class FakePacketSocketFactory : public rtc::PacketSocketFactory,
 
   std::list<PendingPacket> pending_packets_;
 
+  int total_packets_received_ = 0;
+  base::TimeDelta total_delay_;
+
   base::WeakPtrFactory<FakePacketSocketFactory> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FakePacketSocketFactory);