Report network stats in the scroll performance tests

remoting/test/fake_socket_factory.cc

Index: remoting/test/fake_socket_factory.cc
diff --git a/remoting/test/fake_socket_factory.cc b/remoting/test/fake_socket_factory.cc
index 39a9e862855a0dce3d809bb1c6925a9cf8070317..8223e356603731629782b4a896e1a3bc144f98a5 100644
--- a/remoting/test/fake_socket_factory.cc
+++ b/remoting/test/fake_socket_factory.cc
@@ -176,8 +176,7 @@ FakePacketSocketFactory::PendingPacket::PendingPacket(
 FakePacketSocketFactory::PendingPacket::PendingPacket(
     const PendingPacket& other) = default;
 
-FakePacketSocketFactory::PendingPacket::~PendingPacket() {
-}
+FakePacketSocketFactory::PendingPacket::~PendingPacket() {}
 
 FakePacketSocketFactory::FakePacketSocketFactory(
     FakeNetworkDispatcher* dispatcher)
@@ -309,6 +308,9 @@ void FakePacketSocketFactory::ReceivePacket(
   if (delay < base::TimeDelta())
     delay = base::TimeDelta();
 
+  total_delay_ += delay;
+  ++total_packets_received_;
+
   // Put the packet to the |pending_packets_| and post a task for
   // DoReceivePackets(). Note that the DoReceivePackets() task posted here may
   // deliver a different packet, not the one added to the queue here. This
@@ -347,4 +349,14 @@ void FakePacketSocketFactory::DoReceivePacket() {
   iter->second.Run(packet.from, packet.to, packet.data, packet.data_size);
 }
 
+void FakePacketSocketFactory::ResetStats() {
+  total_packets_received_ = 0;
+  total_delay_ = base::TimeDelta();
+}
+
+base::TimeDelta FakePacketSocketFactory::GetAverageDelay() {
+  return total_packets_received_ > 0 ? (total_delay_ / total_packets_received_)
+                                     : base::TimeDelta();
+}
+
 }  // namespace remoting