Add DiscoveryNetworkMonitor implementation

chrome/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 3195 matching lines @@
     "../browser/media/webrtc/media_stream_device_permission_context_unittest.cc",
     "../browser/metrics/antivirus_metrics_provider_win_unittest.cc",
     "../browser/metrics/chrome_browser_main_extra_parts_metrics_unittest.cc",
     "../browser/metrics/chrome_metrics_service_accessor_unittest.cc",
     "../browser/metrics/perf/perf_provider_chromeos_unittest.cc",
     "../browser/metrics/subprocess_metrics_provider_unittest.cc",
     "../browser/metrics/thread_watcher_android_unittest.cc",
     "../browser/metrics/thread_watcher_unittest.cc",
     "../browser/mod_pagespeed/mod_pagespeed_metrics_unittest.cc",
     "../browser/net/chrome_network_delegate_unittest.cc",
+    "../browser/net/discovery_network_list_unittest.cc",
+    "../browser/net/discovery_network_monitor_unittest.cc",
     "../browser/net/dns_probe_runner_unittest.cc",
     "../browser/net/dns_probe_service_unittest.cc",
     "../browser/net/file_downloader_unittest.cc",
     "../browser/net/net_error_tab_helper_unittest.cc",
     "../browser/net/predictor_unittest.cc",
     "../browser/net/probe_message_unittest.cc",
     "../browser/net/quota_policy_channel_id_store_unittest.cc",
     "../browser/net/safe_search_util_unittest.cc",
     "../browser/net/spdyproxy/chrome_data_use_group_provider_unittest.cc",
     "../browser/net/spdyproxy/chrome_data_use_group_unittest.cc",
@@ skipping 1277 matching lines @@
       "../tools/convert_dict/convert_dict_unittest.cc",
     ]
 
     # The test fetches resources which means Mac need the app bundle to exist
     # on disk so it can pull from it.
     deps += [
       "//third_party/google_toolbox_for_mac",
       "//third_party/ocmock",
     ]
 
-    sources += [
-      "../browser/ui/cocoa/applescript/apple_event_util_unittest.mm",
-    ]
+    sources +=
+        [ "../browser/ui/cocoa/applescript/apple_event_util_unittest.mm" ]
 
     if (mac_views_browser) {
       # TODO(tapted): Add chrome_unit_tests_views_non_mac_sources.
     } else {
       sources += [
         "../browser/ui/cocoa/accelerators_cocoa_unittest.mm",
         "../browser/ui/cocoa/animatable_image_unittest.mm",
         "../browser/ui/cocoa/animatable_view_unittest.mm",
         "../browser/ui/cocoa/app_menu/app_menu_button_cell_unittest.mm",
         "../browser/ui/cocoa/app_menu/app_menu_controller_unittest.mm",
@@ skipping 657 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }