Fix test which times out when FLAGS_quic_allow_more_open_streams is

net/tools/quic/end_to_end_test.cc

Index: net/tools/quic/end_to_end_test.cc
diff --git a/net/tools/quic/end_to_end_test.cc b/net/tools/quic/end_to_end_test.cc
index 9ce1cc119a9a78295e47efb8444134082699705f..edcd0ce416ffb1bf25610183172e98160489339a 100644
--- a/net/tools/quic/end_to_end_test.cc
+++ b/net/tools/quic/end_to_end_test.cc
@@ -854,22 +854,27 @@ TEST_P(EndToEndTest, Timeout) {
 }
 
 TEST_P(EndToEndTest, NegotiateMaxOpenStreams) {
+  ValueRestore<bool> old_flag(&FLAGS_quic_allow_more_open_streams, true);
+
   // Negotiate 1 max open stream.
   client_config_.SetMaxStreamsPerConnection(1, 1);
   ASSERT_TRUE(Initialize());
   client_->client()->WaitForCryptoHandshakeConfirmed();
 
   // Make the client misbehave after negotiation.
-  QuicSessionPeer::SetMaxOpenStreams(client_->client()->session(), 10);
+  const int kServerMaxStreams = kMaxStreamsMinimumIncrement + 1;
+  QuicSessionPeer::SetMaxOpenStreams(client_->client()->session(),
+                                     kServerMaxStreams + 1);
 
-  HTTPMessage request(HttpConstants::HTTP_1_1,
-                      HttpConstants::POST, "/foo");
+  HTTPMessage request(HttpConstants::HTTP_1_1, HttpConstants::POST, "/foo");
   request.AddHeader("content-length", "3");
   request.set_has_complete_message(false);
 
-  // Open two simultaneous streams.
-  client_->SendMessage(request);
-  client_->SendMessage(request);
+  // The server supports a small number of additional streams beyond the
+  // negotiated limit. Open enough streams to go beyond that limit.
+  for (int i = 0; i < kServerMaxStreams + 1; ++i) {
+    client_->SendMessage(request);
+  }
   client_->WaitForResponse();
 
   EXPECT_FALSE(client_->connected());