Revert of Remove reference counting from HttpNetworkSession.

chrome/browser/profiles/profile_io_data.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 365 matching lines @@
 
   bool initialized() const {
     return initialized_;
   }
 
   // Destroys the ResourceContext first, to cancel any URLRequests that are
   // using it still, before we destroy the member variables that those
   // URLRequests may be accessing.
   void DestroyResourceContext();
 
-  scoped_ptr<net::HttpNetworkSession> CreateHttpNetworkSession(
-      const ProfileParams& profile_params) const;
-
-  // Creates main network transaction factory.
+  // Creates network session and main network transaction factory.
   scoped_ptr<net::HttpCache> CreateMainHttpFactory(
-      net::HttpNetworkSession* session,
+      const ProfileParams* profile_params,
       net::HttpCache::BackendFactory* main_backend) const;
 
   // Creates network transaction factory.
   scoped_ptr<net::HttpCache> CreateHttpFactory(
       net::HttpNetworkSession* shared_session,
       net::HttpCache::BackendFactory* backend) const;
 
   void SetCookieSettingsForTesting(
       content_settings::CookieSettings* cookie_settings);
 
@@ skipping 198 matching lines @@
 
   // TODO(jhawkins): Remove once crbug.com/102004 is fixed.
   bool initialized_on_UI_thread_;
 
   const Profile::ProfileType profile_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_