Move some of IOThread's command line logic to network_session_configurator.

content/shell/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/console_app.gni")
 import("//build/config/win/manifest.gni")
 import("//media/media_options.gni")
@@ skipping 202 matching lines @@
   deps = [
     ":mojo_bindings",
     ":resources",
     "//base",
     "//base:base_static",
     "//base/third_party/dynamic_annotations",
     "//cc",
     "//components/cdm/renderer",
     "//components/crash/content/app:app_breakpad_mac_win_to_be_deleted",
     "//components/keyed_service/content",
+    "//components/network_session_configurator/common",
     "//components/plugins/renderer",
     "//components/url_formatter",
     "//components/web_cache/renderer",
     "//content:resources",
     "//content/app/resources",
     "//content/app/strings",
     "//content/gpu",
     "//content/public/common:interfaces",
     "//content/public/common:service_names",
     "//content/shell/test_runner:test_runner",
@@ skipping 572 matching lines @@
     data_deps += [
       "//breakpad:dump_syms",
       "//breakpad:microdump_stackwalk",
       "//breakpad:minidump_dump",
       "//breakpad:minidump_stackwalk",
       "//breakpad:symupload",
       "//tools/android/forwarder2",
     ]
   }
 }