Switch to using URLRequestContextBuilder to create some URLRequestContexts.

chrome/chrome.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
     # the link of the actual chrome (or chromium) executable on
@@ skipping 728 matching lines @@
             'service/cloud_print/connector_settings.h',
             'service/cloud_print/job_status_updater.cc',
             'service/cloud_print/job_status_updater.h',
             'service/cloud_print/print_system.cc',
             'service/cloud_print/print_system.h',
             'service/cloud_print/print_system_win.cc',
             'service/cloud_print/printer_job_handler.cc',
             'service/cloud_print/printer_job_handler.h',
             'service/cloud_print/printer_job_queue_handler.cc',
             'service/cloud_print/printer_job_queue_handler.h',
-            'service/net/service_url_request_context.cc',
-            'service/net/service_url_request_context.h',
+            'service/net/service_url_request_context_getter.cc',
+            'service/net/service_url_request_context_getter.h',
             'service/service_ipc_server.cc',
             'service/service_ipc_server.h',
             'service/service_main.cc',
             'service/service_process.cc',
             'service/service_process.h',
             'service/service_process_prefs.cc',
             'service/service_process_prefs.h',
             'service/service_utility_process_host.cc',
             'service/service_utility_process_host.h',
           ],
@@ skipping 13 matching lines @@
               'sources': [
                 'service/cloud_print/print_system_dummy.cc',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }