Change ProfileIOData::CreateHttpFactory to take an

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 <stdint.h>
 
 #include <map>
@@ skipping 397 matching lines @@
   void DestroyResourceContext();
 
   std::unique_ptr<net::HttpNetworkSession> CreateHttpNetworkSession(
       const ProfileParams& profile_params) const;
 
   // Creates main network transaction factory.
   std::unique_ptr<net::HttpCache> CreateMainHttpFactory(
       net::HttpNetworkSession* session,
       std::unique_ptr<net::HttpCache::BackendFactory> main_backend) const;
 
-  // Creates network transaction factory.
+  // Creates network transaction factory. The created factory will share
+  // HttpNetworkSession with |main_http_factory|.
   std::unique_ptr<net::HttpCache> CreateHttpFactory(
-      net::HttpNetworkSession* shared_session,
+      net::HttpTransactionFactory* main_http_factory,
       std::unique_ptr<net::HttpCache::BackendFactory> backend) const;
 
   void SetCookieSettingsForTesting(
       content_settings::CookieSettings* cookie_settings);
 
  private:
   class ResourceContext : public content::ResourceContext {
    public:
     explicit ResourceContext(ProfileIOData* io_data);
     ~ResourceContext() override;
@@ skipping 188 matching lines @@
   mutable std::unique_ptr<certificate_transparency::TreeStateTracker>
       ct_tree_tracker_;
   mutable base::Closure ct_tree_tracker_unregistration_;
 
   const Profile::ProfileType profile_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IO_DATA_H_