Provide mutable members of UrlRequestContext via pure-virtual interface

chrome/browser/profiles/profile_impl_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_IMPL_IO_DATA_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_IMPL_IO_DATA_H_
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/hash_tables.h"
@@ skipping 158 matching lines @@
   mutable scoped_ptr<net::FtpTransactionFactory> ftp_factory_;
 
   mutable scoped_ptr<chrome_browser_net::Predictor> predictor_;
 
   mutable scoped_ptr<ChromeURLRequestContext> media_request_context_;
 
   mutable scoped_ptr<net::URLRequestJobFactory> main_job_factory_;
   mutable scoped_ptr<net::URLRequestJobFactory> media_request_job_factory_;
   mutable scoped_ptr<net::URLRequestJobFactory> extensions_job_factory_;
 
+  mutable scoped_ptr<net::HttpUserAgentSettings> http_user_agent_settings_;

[erikwright (departed), 2012/09/25 21:06:38]

no longer required?

+
   // Parameters needed for isolated apps.
   FilePath profile_path_;
   int app_cache_max_size_;
   int app_media_cache_max_size_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileImplIOData);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_IMPL_IO_DATA_H_