Revert of Remove reference counting from HttpNetworkSession.

net/http/http_stream_factory_impl_request_unittest.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/http/http_stream_factory_impl_request.h"
 
 #include "net/http/http_stream_factory_impl_job.h"
 #include "net/proxy/proxy_info.h"
 #include "net/proxy/proxy_service.h"
 #include "net/spdy/spdy_test_util_common.h"
@@ skipping 45 matching lines @@
                                   HttpStream* stream) override {}
 };
 
 }  // namespace
 
 // Make sure that Request passes on its priority updates to its jobs.
 TEST_P(HttpStreamFactoryImplRequestTest, SetPriority) {
   SpdySessionDependencies session_deps(GetParam(),
                                        ProxyService::CreateDirect());
 
-  scoped_ptr<HttpNetworkSession> session =
-      SpdySessionDependencies::SpdyCreateSession(&session_deps);
+  scoped_refptr<HttpNetworkSession>
+      session(SpdySessionDependencies::SpdyCreateSession(&session_deps));
   HttpStreamFactoryImpl* factory =
       static_cast<HttpStreamFactoryImpl*>(session->http_stream_factory());
 
   DoNothingRequestDelegate request_delegate;
   HttpStreamFactoryImpl::Request request(
       GURL(), factory, &request_delegate, NULL, BoundNetLog());
 
   HttpStreamFactoryImpl::Job* job =
       new HttpStreamFactoryImpl::Job(factory,
                                      session.get(),
                                      HttpRequestInfo(),
                                      DEFAULT_PRIORITY,
                                      SSLConfig(),
                                      SSLConfig(),
                                      NULL);
   request.AttachJob(job);
   EXPECT_EQ(DEFAULT_PRIORITY, job->priority());
 
   request.SetPriority(MEDIUM);
   EXPECT_EQ(MEDIUM, job->priority());
 
   // Make |job| the bound job.
   request.OnStreamFailed(job, ERR_FAILED, SSLConfig(), SSL_FAILURE_NONE);
 
   request.SetPriority(IDLE);
   EXPECT_EQ(IDLE, job->priority());
 }
 
 }  // namespace net