Cleanup the preconnect to proxy code and Job controller code

net/spdy/spdy_test_util_common.cc

Index: net/spdy/spdy_test_util_common.cc
diff --git a/net/spdy/spdy_test_util_common.cc b/net/spdy/spdy_test_util_common.cc
index 305d99cfb40d77ae850c4aa1a52fdb07731802be..0351508836633fc1a9e9d29c4be78d9b95e40638 100644
--- a/net/spdy/spdy_test_util_common.cc
+++ b/net/spdy/spdy_test_util_common.cc
@@ -403,6 +403,7 @@ HttpNetworkSession::Params SpdySessionDependencies::CreateSessionParams(
   params.net_log = session_deps->net_log;
   params.http_09_on_non_default_ports_enabled =
       session_deps->http_09_on_non_default_ports_enabled;
+  params.restrict_to_one_preconnect_for_proxies = true;
   return params;
 }