relnote: Allow changing initial flow control window via connection options. Protected by --quic_lar…

net/quic/core/quic_session_test.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 "net/quic/core/quic_session.h"
 
 #include <set>
 #include <utility>
 
 #include "base/memory/ptr_util.h"
@@ skipping 1078 matching lines @@
   // from the peer results in the connection being torn down.
   const uint32_t kInvalidWindow = kMinimumFlowControlSendWindow - 1;
   QuicConfigPeer::SetReceivedInitialSessionFlowControlWindow(session_.config(),
                                                              kInvalidWindow);
 
   EXPECT_CALL(*connection_,
               CloseConnection(QUIC_FLOW_CONTROL_INVALID_WINDOW, _, _));
   session_.OnConfigNegotiated();
 }
 
+// Test negotiation of custom server initial flow control window.
+TEST_P(QuicSessionTestServer, CustomFlowControlWindow) {
+  FLAGS_quic_large_ifw_options = true;
+  QuicTagVector copt;
+  copt.push_back(kIFW7);
+  QuicConfigPeer::SetReceivedConnectionOptions(session_.config(), copt);
+
+  session_.OnConfigNegotiated();
+  EXPECT_EQ(192 * 1024u, QuicFlowControllerPeer::ReceiveWindowSize(
+                             session_.flow_controller()));
+}
+
 TEST_P(QuicSessionTestServer, FlowControlWithInvalidFinalOffset) {
   // Test that if we receive a stream RST with a highest byte offset that
   // violates flow control, that we close the connection.
   const uint64_t kLargeOffset = kInitialSessionFlowControlWindowForTest + 1;
   EXPECT_CALL(*connection_,
               CloseConnection(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA, _, _))
       .Times(2);
 
   // Check that stream frame + FIN results in connection close.
   TestStream* stream = session_.CreateOutgoingDynamicStream(kDefaultPriority);
@@ skipping 192 matching lines @@
   if (version() <= QUIC_VERSION_35) {
     EXPECT_FALSE(session_.force_hol_blocking());
   } else {
     EXPECT_TRUE(session_.force_hol_blocking());
   }
 }
 
 }  // namespace
 }  // namespace test
 }  // namespace net