QUIC - disable QUIC if packet loss rate is bad for a connection.

net/quic/quic_stream_factory_test.cc

Index: net/quic/quic_stream_factory_test.cc
diff --git a/net/quic/quic_stream_factory_test.cc b/net/quic/quic_stream_factory_test.cc
index fdc023b28ac5d8420c165d16d3cc5baf0530cb7b..1b408203ebd967f2a7ad889b06ede231daa4eca5 100644
--- a/net/quic/quic_stream_factory_test.cc
+++ b/net/quic/quic_stream_factory_test.cc
@@ -135,6 +135,10 @@ class QuicStreamFactoryPeer {
     factory->disable_disk_cache_ = disable_disk_cache;
   }
 
+  static bool GetQuicIsDisabled(QuicStreamFactory* factory) {
+    return factory->quic_is_disabled_;
+  }
+
   static size_t GetNumberOfActiveJobs(QuicStreamFactory* factory,
                                       const QuicServerId& server_id) {
     return (factory->active_jobs_[server_id]).size();
@@ -206,6 +210,8 @@ class QuicStreamFactoryTest : public ::testing::TestWithParam<TestParams> {
                  /*enable_connection_racing=*/false,
                  /*enable_non_blocking_io=*/true,
                  /*disable_disk_cache=*/false,
+                 /*max_number_of_lossy_connections=*/0,
+                 /*packet_loss_threshold=*/1000.0f,
                  /*receive_buffer_size=*/0,
                  QuicTagVector()),
         host_port_pair_(kDefaultServerHostName, kDefaultServerPort),
@@ -1681,5 +1687,21 @@ TEST_P(QuicStreamFactoryTest, EnableNotLoadFromDiskCache) {
   EXPECT_TRUE(socket_data.at_write_eof());
 }
 
+TEST_P(QuicStreamFactoryTest, BadPacketLoss) {
+  factory_.set_quic_server_info_factory(&quic_server_info_factory_);
+  QuicStreamFactoryPeer::SetTaskRunner(&factory_, runner_.get());
+  EXPECT_FALSE(QuicStreamFactoryPeer::GetQuicIsDisabled(&factory_));
+
+  // OnBadPacketLoss should disable QUIC.
+  QuicServerId server_id(host_port_pair_, is_https_, privacy_mode_);
+  factory_.OnBadPacketLoss(server_id);
+  EXPECT_TRUE(QuicStreamFactoryPeer::GetQuicIsDisabled(&factory_));
+
+  QuicStreamRequest request(&factory_);
+  EXPECT_EQ(ERR_QUIC_PROTOCOL_ERROR,
+            request.Request(host_port_pair_, is_https_, privacy_mode_, "GET",
+                            net_log_, callback_.callback()));
+}
+
 }  // namespace test
 }  // namespace net