Clear cached QUIC network stats when a QUIC handshake fails.

net/quic/chromium/quic_network_transaction_unittest.cc

 // Copyright (c) 2012 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.
 
 #include <memory>
 #include <ostream>
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 1814 matching lines @@
   EXPECT_TRUE(http_server_properties_.WasAlternativeServiceRecentlyBroken(
       alternative_service));
 
   SendRequestAndExpectHttpResponse("hello world");
   SendRequestAndExpectQuicResponse("hello!");
 
   mock_quic_data.Resume();
 
   EXPECT_FALSE(http_server_properties_.WasAlternativeServiceRecentlyBroken(
       alternative_service));
+  EXPECT_NE(nullptr,
+            http_server_properties_.GetServerNetworkStats(
+                url::SchemeHostPort("https", request_.url.host(), 443)));
 }
 
 TEST_P(QuicNetworkTransactionTest, UseAlternativeServiceForQuicForHttps) {
   MockRead http_reads[] = {
       MockRead("HTTP/1.1 200 OK\r\n"), MockRead(kQuicAlternativeServiceHeader),
       MockRead("hello world"),
       MockRead(SYNCHRONOUS, ERR_TEST_PEER_CLOSE_AFTER_NEXT_MOCK_READ),
       MockRead(ASYNC, OK)};
 
   StaticSocketDataProvider http_data(http_reads, arraysize(http_reads), nullptr,
@@ skipping 147 matching lines @@
 
   mock_quic_data.AddSocketDataToFactory(&socket_factory_);
 
   // The non-alternate protocol job needs to hang in order to guarantee that
   // the alternate-protocol job will "win".
   AddHangingNonAlternateProtocolSocketData();
 
   CreateSession();
   AddQuicAlternateProtocolMapping(MockCryptoClientStream::ZERO_RTT);
   SendRequestAndExpectQuicResponse("hello!");
+
+  EXPECT_EQ(nullptr,
+            http_server_properties_.GetServerNetworkStats(
+                url::SchemeHostPort("https", request_.url.host(), 443)));
 }
 
 TEST_P(QuicNetworkTransactionTest, ZeroRTTWithNoHttpRace) {
   MockQuicData mock_quic_data;
   mock_quic_data.AddWrite(ConstructClientRequestHeadersPacket(
       1, kClientDataStreamId1, true, true,
       GetRequestHeaders("GET", "https", "/")));
   mock_quic_data.AddRead(ConstructServerResponseHeadersPacket(
       1, kClientDataStreamId1, false, false, GetResponseHeaders("200 OK")));
   mock_quic_data.AddRead(ConstructServerDataPacket(2, kClientDataStreamId1,
@@ skipping 1495 matching lines @@
   AddHangingSocketData();
 
   SendRequestAndExpectQuicResponse(origin1_);
   SendRequestAndExpectQuicResponse(origin2_);
 
   EXPECT_TRUE(AllDataConsumed());
 }
 
 }  // namespace test
 }  // namespace net