Refactor pooling logic into a helper method

net/http/http_response_body_drainer_unittest.cc

Index: net/http/http_response_body_drainer_unittest.cc
diff --git a/net/http/http_response_body_drainer_unittest.cc b/net/http/http_response_body_drainer_unittest.cc
index 42efa57f919e1923042c95188f34a76202c70bd1..5aa0bff98f72847fd0687f0bb6438275d49ad68c 100644
--- a/net/http/http_response_body_drainer_unittest.cc
+++ b/net/http/http_response_body_drainer_unittest.cc
@@ -16,6 +16,7 @@
 #include "net/http/http_network_session.h"
 #include "net/http/http_server_properties_impl.h"
 #include "net/http/http_stream.h"
+#include "net/http/transport_security_state.h"
 #include "net/proxy/proxy_service.h"
 #include "net/ssl/ssl_config_service_defaults.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -210,6 +211,7 @@ class HttpResponseBodyDrainerTest : public testing::Test {
       : proxy_service_(ProxyService::CreateDirect()),
         ssl_config_service_(new SSLConfigServiceDefaults),
         http_server_properties_(new HttpServerPropertiesImpl()),
+        transport_security_state_(new TransportSecurityState()),
         session_(CreateNetworkSession()),
         mock_stream_(new MockHttpStream(&result_waiter_)),
         drainer_(new HttpResponseBodyDrainer(mock_stream_)) {}
@@ -221,12 +223,14 @@ class HttpResponseBodyDrainerTest : public testing::Test {
     params.proxy_service = proxy_service_.get();
     params.ssl_config_service = ssl_config_service_.get();
     params.http_server_properties = http_server_properties_->GetWeakPtr();
+    params.transport_security_state = transport_security_state_.get();
     return new HttpNetworkSession(params);
   }
 
   scoped_ptr<ProxyService> proxy_service_;
   scoped_refptr<SSLConfigService> ssl_config_service_;
   scoped_ptr<HttpServerPropertiesImpl> http_server_properties_;
+  scoped_ptr<TransportSecurityState> transport_security_state_;
   const scoped_refptr<HttpNetworkSession> session_;
   CloseResultWaiter result_waiter_;
   MockHttpStream* const mock_stream_;  // Owned by |drainer_|.