Turned job_factory into a pure virtual class

chrome/chrome_browser.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
@@ skipping 1522 matching lines @@
         'browser/net/connect_interceptor.h',
         'browser/net/connection_tester.cc',
         'browser/net/connection_tester.h',
         'browser/net/crl_set_fetcher.cc',
         'browser/net/crl_set_fetcher.h',
         'browser/net/gaia/gaia_oauth_consumer.h',
         'browser/net/gaia/gaia_oauth_fetcher.cc',
         'browser/net/gaia/gaia_oauth_fetcher.h',
         'browser/net/load_timing_observer.cc',
         'browser/net/load_timing_observer.h',
+        'browser/net/http_intercept_job_factory.cc',
+        'browser/net/http_intercept_job_factory.h',
         'browser/net/http_pipelining_compatibility_client.cc',
         'browser/net/http_pipelining_compatibility_client.h',
         'browser/net/http_server_properties_manager.h',
         'browser/net/http_server_properties_manager.cc',
         'browser/net/load_time_stats.cc',
         'browser/net/load_time_stats.h',
         'browser/net/net_log_logger.cc',
         'browser/net/net_log_logger.h',
         'browser/net/net_pref_observer.cc',
         'browser/net/net_pref_observer.h',
@@ skipping 4100 matching lines @@
           'includes': [ '../build/jni_generator.gypi' ],
           'dependencies': [
             'android_jar_jni_headers',
           ],
         },
       ],
      },
     ],
   ],
 }