Respect QuicAllowed policy for new streams

net/url_request/url_request_context_builder.cc

Index: net/url_request/url_request_context_builder.cc
diff --git a/net/url_request/url_request_context_builder.cc b/net/url_request/url_request_context_builder.cc
index 4e7c7bc402561b6bdbbcfba7042fd761937b11d6..c1493c88a33509b0cb88251c680acb84beb86db4 100644
--- a/net/url_request/url_request_context_builder.cc
+++ b/net/url_request/url_request_context_builder.cc
@@ -422,7 +422,6 @@ std::unique_ptr<URLRequestContext> URLRequestContextBuilder::Build() {
       http_network_session_params_.testing_fixed_https_port;
   network_session_params.enable_http2 =
       http_network_session_params_.enable_http2;
-  network_session_params.enable_quic = http_network_session_params_.enable_quic;
   network_session_params.quic_max_server_configs_stored_in_properties =
       http_network_session_params_.quic_max_server_configs_stored_in_properties;
   network_session_params.quic_delay_tcp_race =
@@ -456,8 +455,17 @@ std::unique_ptr<URLRequestContext> URLRequestContextBuilder::Build() {
         socket_performance_watcher_factory_;
   }
 
+  auto network_session_dynamic_params =
+      base::MakeUnique<HttpNetworkSession::DynamicSharedParams>();
+  network_session_dynamic_params->enable_quic =
+      http_network_session_params_.enable_quic;
+  network_session_params.dynamic_shared_params =
+      network_session_dynamic_params.get();
+
   storage->set_http_network_session(
       base::MakeUnique<HttpNetworkSession>(network_session_params));
+  storage->set_http_network_session_dynamic_shared_params(
+      std::move(network_session_dynamic_params));
 
   std::unique_ptr<HttpTransactionFactory> http_transaction_factory;
   if (http_cache_enabled_) {