Respect QuicAllowed policy for new streams

components/grpc_support/test/get_stream_engine.cc

Index: components/grpc_support/test/get_stream_engine.cc
diff --git a/components/grpc_support/test/get_stream_engine.cc b/components/grpc_support/test/get_stream_engine.cc
index 73745b5164c351a8e999604032b8b3919f3d0db0..9a1a38b74597c433e08b28595aed9eccae4ccc73 100644
--- a/components/grpc_support/test/get_stream_engine.cc
+++ b/components/grpc_support/test/get_stream_engine.cc
@@ -47,7 +47,11 @@ class BidirectionalStreamTestURLRequestContextGetter
 
       // Need to enable QUIC for the test server.
       auto params = base::MakeUnique<net::HttpNetworkSession::Params>();
-      params->enable_quic = true;
+      auto dynamic_shared_params =
+          base::MakeUnique<net::HttpNetworkSession::DynamicSharedParams>();
+      params->dynamic_shared_params = dynamic_shared_params.get();
+
+      dynamic_shared_params->enable_quic = true;
       params->enable_http2 = true;
       net::AlternativeService alternative_service(net::kProtoQUIC, "", 443);
       url::SchemeHostPort quic_hint_server("https", kTestServerHost, 443);
@@ -59,6 +63,8 @@ class BidirectionalStreamTestURLRequestContextGetter
       request_context_->set_host_resolver(host_resolver_.get());
       request_context_->set_http_server_properties(server_properties_.get());
       request_context_->set_http_network_session_params(std::move(params));
+      request_context_->set_http_network_session_dynamic_shared_params(
+          std::move(dynamic_shared_params));
 
       request_context_->Init();
     }