Fix bug where requests to QUIC servers were throttled by the resource scheduler.

net/http/http_stream_factory_impl_job.cc

Index: net/http/http_stream_factory_impl_job.cc
diff --git a/net/http/http_stream_factory_impl_job.cc b/net/http/http_stream_factory_impl_job.cc
index d531476c81b8964868133fb85672f2f860feb357..bab805d082470c80358ec27e7faf30aa32d68baf 100644
--- a/net/http/http_stream_factory_impl_job.cc
+++ b/net/http/http_stream_factory_impl_job.cc
@@ -134,8 +134,9 @@ int HttpStreamFactoryImpl::Job::Preconnect(int num_streams) {
   DCHECK_GT(num_streams, 0);
   base::WeakPtr<HttpServerProperties> http_server_properties =
       session_->http_server_properties();
-  if (http_server_properties && http_server_properties->SupportsSpdy(
-      HostPortPair::FromURL(request_info_.url))) {
+  if (http_server_properties &&
+      http_server_properties->SupportsRequestPriority(
+          HostPortPair::FromURL(request_info_.url))) {
     num_streams_ = 1;
   } else {
     num_streams_ = num_streams;