Revert of Remove reference counting from HttpNetworkSession.

net/spdy/spdy_stream_unittest.cc

 // Copyright 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 <cstddef>
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 37 matching lines @@
       UnstallFunction;
 
   SpdyStreamTest()
       : spdy_util_(GetParam()),
         session_deps_(GetParam()),
         offset_(0) {}
 
   base::WeakPtr<SpdySession> CreateDefaultSpdySession() {
     SpdySessionKey key(HostPortPair("www.example.org", 80),
                        ProxyServer::Direct(), PRIVACY_MODE_DISABLED);
-    return CreateInsecureSpdySession(session_.get(), key, BoundNetLog());
+    return CreateInsecureSpdySession(session_, key, BoundNetLog());
   }
 
   void TearDown() override { base::MessageLoop::current()->RunUntilIdle(); }
 
   void RunResumeAfterUnstallRequestResponseTest(
       const UnstallFunction& unstall_function);
 
   void RunResumeAfterUnstallBidirectionalTest(
       const UnstallFunction& unstall_function);
 
@@ skipping 23 matching lines @@
   MockWrite* GetWrites() {
     return vector_as_array(&writes_);
   }
 
   int GetNumWrites() const {
     return writes_.size();
   }
 
   SpdyTestUtil spdy_util_;
   SpdySessionDependencies session_deps_;
-  scoped_ptr<HttpNetworkSession> session_;
+  scoped_refptr<HttpNetworkSession> session_;
 
  private:
   // Used by Add{Read,Write}() above.
   std::vector<MockWrite> writes_;
   std::vector<MockRead> reads_;
   int offset_;
 };
 
 INSTANTIATE_TEST_CASE_P(NextProto,
                         SpdyStreamTest,
@@ skipping 1012 matching lines @@
   data.RunFor(1); // FIN
 
   EXPECT_EQ(ERR_CONNECTION_CLOSED, delegate.WaitForClose());
 }
 
 }  // namespace
 
 }  // namespace test
 
 }  // namespace net